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Puccinia graminis Stock Photos and Images
RF2HA464K–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
![. The British rust fungi (Uredinales), their biology and classification. Uredineae. 42 PUCCINIA GRAMINIS. Fig. 25. Pucclnia graminis. a, aecidia on Berheris ; b, ureclo- spore ; c, teleutospores. culms; for these ditferences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses great biological interest—its virtual in- dependence of the secidial stage. For a long time it had been known that Barberry bushes in the hedges caused " mildew " on the corn in the neighbouring fields, and when, in 1864-5, De Ba Stock Photo](https://c8.alamy.com/comp/RH1JA9/the-british-rust-fungi-uredinales-their-biology-and-classification-uredineae-42-puccinia-graminis-fig-25-pucclnia-graminis-a-aecidia-on-berheris-b-ureclo-spore-c-teleutospores-culms-for-these-ditferences-the-systematic-part-can-be-con-sulted-fig-25-there-is-however-one-point-of-difference-connected-with-p-graminis-which-possesses-great-biological-interestits-virtual-in-dependence-of-the-secidial-stage-for-a-long-time-it-had-been-known-that-barberry-bushes-in-the-hedges-caused-quot-mildew-quot-on-the-corn-in-the-neighbouring-fields-and-when-in-1864-5-de-ba-RH1JA9.jpg ". The British rust fungi (Uredinales), their biology and classification. Uredineae. 42 PUCCINIA GRAMINIS. Fig. 25. Pucclnia graminis. a, aecidia on Berheris ; b, ureclo- spore ; c, teleutospores. culms; for these ditferences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses great biological interest—its virtual in- dependence of the secidial stage. For a long time it had been known that Barberry bushes in the hedges caused " mildew " on the corn in the neighbouring fields, and when, in 1864-5, De Ba Stock Photo")
RMRH1JA9–. The British rust fungi (Uredinales), their biology and classification. Uredineae. 42 PUCCINIA GRAMINIS. Fig. 25. Pucclnia graminis. a, aecidia on Berheris ; b, ureclo- spore ; c, teleutospores. culms; for these ditferences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses great biological interest—its virtual in- dependence of the secidial stage. For a long time it had been known that Barberry bushes in the hedges caused " mildew " on the corn in the neighbouring fields, and when, in 1864-5, De Ba
RF2HA46GT–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RMRE0P6J–. Elementary botany. Botany. Fig. 159. Germinating uredospore of wheat rust. (After Marshall- Ward.) Fig. 160. Germ tube entering the leaf through a stoma.. Fig. 101. Teleutospore germi- nating, forming promy- celium. Figs. 161-163 Fig. 162. Promycelium of ger. minating teleutospore, forming sporidia. â Puccinia graminis (wheat rust) Fig. 163. Germinating sporidia entering leai of barberry by mycelium. (After Marshall-Ward.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrati
RF2HA4689–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RMRDJ5X4–. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 408 FUNGOUS DISEASES OF PLANTS is one of the most common, yet it may not be considered of any special economic importance. The aecidiospores are almost twice as long as broad, 40 X 17-26 p. The uredospores are subspherical, and the teleutospores are conspicuous by their long, hyaline, and relatively thick pedicels, papillate apex, red-brown color, and verru- cose outer wall.. Fig. 200. jEcidial Stage of the Grain Rust on Barberry XIII. BLACK RUST OF GRAIN Puccinia graminis Pers. Bo
RF2HA46E4–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
![. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 42 PUCCINI A GRAM I MS. Fi^'. 2>. Puccinia graminis. a, fficidia on Berberis ; b, uredo- spore ; c, teleutospores. culms; for these differences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses greal biological interest—its virtual in- dependence of the aicidial stage. For a long time it had been known that Barberry bushes in the hedges caused " mildew :' on the corn in the neighbouring fields, and wh Stock Photo](https://c8.alamy.com/comp/RH1JCD/the-british-rust-fungi-uredinales-their-biology-and-classification-rust-fungi-great-britain-42-puccini-a-gram-i-ms-fi-2gt-puccinia-graminis-a-fficidia-on-berberis-b-uredo-spore-c-teleutospores-culms-for-these-differences-the-systematic-part-can-be-con-sulted-fig-25-there-is-however-one-point-of-difference-connected-with-p-graminis-which-possesses-greal-biological-interestits-virtual-in-dependence-of-the-aicidial-stage-for-a-long-time-it-had-been-known-that-barberry-bushes-in-the-hedges-caused-quot-mildew-on-the-corn-in-the-neighbouring-fields-and-wh-RH1JCD.jpg ". The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 42 PUCCINI A GRAM I MS. Fi^'. 2>. Puccinia graminis. a, fficidia on Berberis ; b, uredo- spore ; c, teleutospores. culms; for these differences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses greal biological interest—its virtual in- dependence of the aicidial stage. For a long time it had been known that Barberry bushes in the hedges caused " mildew :' on the corn in the neighbouring fields, and wh Stock Photo")
RMRH1JCD–. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. 42 PUCCINI A GRAM I MS. Fi^'. 2>. Puccinia graminis. a, fficidia on Berberis ; b, uredo- spore ; c, teleutospores. culms; for these differences the systematic part can be con- sulted (Fig. 25). There is, however, one point of difference connected with P. graminis which possesses greal biological interest—its virtual in- dependence of the aicidial stage. For a long time it had been known that Barberry bushes in the hedges caused " mildew :' on the corn in the neighbouring fields, and wh
RF2HA4683–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RMRH83GF–. Botany; principles and problems. Botany. 298 BOTANY: PRINCIPLES AND PROBLEMS ratus. Whatever its original share in the Hfe cycle may have been, however, it seems now to be entirely functionless. On the lower surface of the barberry leaves are formed cluster-cups or. Fig. 174.—Puccinia graminis, the wheat rust. A, wheat leaf with groups of summer spores (uredospores). B, uredospores (one teleutospore among them). C, germinating uredospore. D, wheat stem with masses of winter spores (tel- eutospores). E, two teleutospores. F, germinating teleutospore, producing a promycelium on which are borne
RF2HA46EN–Common bunt, or stinking smut and covered smut, is a disease of spring and winter wheats caused by Tilletia tritici and laevis.
RF2HA7RFY–The take-all fungus, Gaeumannomyces graminis (ascomycota), is a major root-rot pathogen of cereals and grasses. It is most damaging wheat and barley
RF2HA8928–The take-all fungus, Gaeumannomyces graminis (ascomycota), is a major root-rot pathogen of cereals and grasses. It is most damaging wheat and barley
![. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. EUTHALLEPHYTAâEUMYCETESâRUSTS 223 "»«!;â â¢. 'Â¥i Fig. 61. Uredosori of Tickle Grass Rust. (Puccinia emaculata). Fig. 61a. Teleutosori of Puccinia coronata on leaf of oats. Sheath af- fected with Puccinia graminis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stock Photo](https://c8.alamy.com/comp/RDXT64/a-manual-of-poisonous-plants-chiefly-of-eastern-north-america-with-brief-notes-on-economic-and-medicinal-plants-and-numerous-illustrations-poisonous-plants-euthallephytaeumycetesrusts-223-quot!-i-fig-61-uredosori-of-tickle-grass-rust-puccinia-emaculata-fig-61a-teleutosori-of-puccinia-coronata-on-leaf-of-oats-sheath-af-fected-with-puccinia-graminis-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-RDXT64.jpg ". A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. EUTHALLEPHYTAâEUMYCETESâRUSTS 223 "»«!;â â¢. 'Â¥i Fig. 61. Uredosori of Tickle Grass Rust. (Puccinia emaculata). Fig. 61a. Teleutosori of Puccinia coronata on leaf of oats. Sheath af- fected with Puccinia graminis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stock Photo")
RMRDXT64–. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. EUTHALLEPHYTAâEUMYCETESâRUSTS 223 "»«!;â â¢. 'Â¥i Fig. 61. Uredosori of Tickle Grass Rust. (Puccinia emaculata). Fig. 61a. Teleutosori of Puccinia coronata on leaf of oats. Sheath af- fected with Puccinia graminis.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original
![. Botany all the year round; a practical text-book for schools. Botany. <^-^1i^lilhY'&'^ffM Wt 539. — Uredospores of wheat rust, Puccinia graminis, magnified (from Coulter's " Plant Structures "). Under the microscope the teleutospores appear as long, two-celled bodies with very thick black walls (Fig. 540). Since they are developed from the same mycelium with the. 540. — Teleutospores of wheM rust, magnified (from COULTER'S " Plant Structures "). uredospores, and are not a product of the latter, but collat- eral with them, the two constitute a single generation, a Stock Photo](https://c8.alamy.com/comp/RE0RYG/botany-all-the-year-round-a-practical-text-book-for-schools-botany-lt-1ililhyampffm-wt-539-uredospores-of-wheat-rust-puccinia-graminis-magnified-from-coulters-quot-plant-structures-quot-under-the-microscope-the-teleutospores-appear-as-long-two-celled-bodies-with-very-thick-black-walls-fig-540-since-they-are-developed-from-the-same-mycelium-with-the-540-teleutospores-of-whem-rust-magnified-from-coulters-quot-plant-structures-quot-uredospores-and-are-not-a-product-of-the-latter-but-collat-eral-with-them-the-two-constitute-a-single-generation-a-RE0RYG.jpg ". Botany all the year round; a practical text-book for schools. Botany. <^-^1i^lilhY'&'^ffM Wt 539. — Uredospores of wheat rust, Puccinia graminis, magnified (from Coulter's " Plant Structures "). Under the microscope the teleutospores appear as long, two-celled bodies with very thick black walls (Fig. 540). Since they are developed from the same mycelium with the. 540. — Teleutospores of wheM rust, magnified (from COULTER'S " Plant Structures "). uredospores, and are not a product of the latter, but collat- eral with them, the two constitute a single generation, a Stock Photo")
RMRE0RYG–. Botany all the year round; a practical text-book for schools. Botany. <^-^1i^lilhY'&'^ffM Wt 539. — Uredospores of wheat rust, Puccinia graminis, magnified (from Coulter's " Plant Structures "). Under the microscope the teleutospores appear as long, two-celled bodies with very thick black walls (Fig. 540). Since they are developed from the same mycelium with the. 540. — Teleutospores of wheM rust, magnified (from COULTER'S " Plant Structures "). uredospores, and are not a product of the latter, but collat- eral with them, the two constitute a single generation, a
RF2WK8EN3–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
![. Photomicrographs of botanical studies. Photomicrography. 14 Pliotoinicrograplis of Botanical Studies. 7- T.S. Stem of Wheat, " Triticum." Attacked by teleutospores of puccinia graminis.. Teleutospores. Alycelium of fungus. Disorganised tissue of Stem. Vascular bundle in normal condition. 8. T.S. Leaf of Berbery. Attacked by aecidiaspores of puccinia graminis. 4 -'^-^ -^ Fully-developed acidium. ^i-' )'^-f',' ' T, ', j-.-'!#r" Mycelium of fungus. I v'' ;â ' <-"''*ff : â ' 'JSi- â Disorganised tissue of leaf. Spermogone of unlinown function.. Please note that thes Stock Photo](https://c8.alamy.com/comp/RDE812/photomicrographs-of-botanical-studies-photomicrography-14-pliotoinicrograplis-of-botanical-studies-7-ts-stem-of-wheat-quot-triticumquot-attacked-by-teleutospores-of-puccinia-graminis-teleutospores-alycelium-of-fungus-disorganised-tissue-of-stem-vascular-bundle-in-normal-condition-8-ts-leaf-of-berbery-attacked-by-aecidiaspores-of-puccinia-graminis-4-fully-developed-acidium-i-f-t-j-!rquot-mycelium-of-fungus-i-v-lt-quotff-jsi-disorganised-tissue-of-leaf-spermogone-of-unlinown-function-please-note-that-thes-RDE812.jpg ". Photomicrographs of botanical studies. Photomicrography. 14 Pliotoinicrograplis of Botanical Studies. 7- T.S. Stem of Wheat, " Triticum." Attacked by teleutospores of puccinia graminis.. Teleutospores. Alycelium of fungus. Disorganised tissue of Stem. Vascular bundle in normal condition. 8. T.S. Leaf of Berbery. Attacked by aecidiaspores of puccinia graminis. 4 -'^-^ -^ Fully-developed acidium. ^i-' )'^-f',' ' T, ', j-.-'!#r" Mycelium of fungus. I v'' ;â ' <-"''*ff : â ' 'JSi- â Disorganised tissue of leaf. Spermogone of unlinown function.. Please note that thes Stock Photo")
RMRDE812–. Photomicrographs of botanical studies. Photomicrography. 14 Pliotoinicrograplis of Botanical Studies. 7- T.S. Stem of Wheat, " Triticum." Attacked by teleutospores of puccinia graminis.. Teleutospores. Alycelium of fungus. Disorganised tissue of Stem. Vascular bundle in normal condition. 8. T.S. Leaf of Berbery. Attacked by aecidiaspores of puccinia graminis. 4 -'^-^ -^ Fully-developed acidium. ^i-' )'^-f',' ' T, ', j-.-'!#r" Mycelium of fungus. I v'' ;â ' <-"''*ff : â ' 'JSi- â Disorganised tissue of leaf. Spermogone of unlinown function.. Please note that thes
RF2WK8EDX–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
![. Elementary botany. Botany. CHAPTER XXL FUNGI CONTINUED (RUSTS AND SAC FUNGI). "Rusts" (Uredineae. 288. The fungi known as "rusts" are very important ones to study, since all the species are parasitic, and many produce serious injuries to crops. 289. Wheat rust (Puccinia graminis).—The wheat rust is one of the best known of these fungi, since a great deal of study has been given to it. One form of the plant occurs in long. Fig. 145. Fig. 14G. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single St, natural size. enlarged to show Stock Photo](https://c8.alamy.com/comp/RE0P80/elementary-botany-botany-chapter-xxl-fungi-continued-rusts-and-sac-fungi-quotrustsquot-uredineae-288-the-fungi-known-as-quotrustsquot-are-very-important-ones-to-study-since-all-the-species-are-parasitic-and-many-produce-serious-injuries-to-crops-289-wheat-rust-puccinia-graministhe-wheat-rust-is-one-of-the-best-known-of-these-fungi-since-a-great-deal-of-study-has-been-given-to-it-one-form-of-the-plant-occurs-in-long-fig-145-fig-14g-fig-147-fig-148-fig-149-wheat-leaf-with-red-portion-of-leaf-natural-size-enlarged-single-st-natural-size-enlarged-to-show-RE0P80.jpg ". Elementary botany. Botany. CHAPTER XXL FUNGI CONTINUED (RUSTS AND SAC FUNGI). "Rusts" (Uredineae. 288. The fungi known as "rusts" are very important ones to study, since all the species are parasitic, and many produce serious injuries to crops. 289. Wheat rust (Puccinia graminis).—The wheat rust is one of the best known of these fungi, since a great deal of study has been given to it. One form of the plant occurs in long. Fig. 145. Fig. 14G. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single St, natural size. enlarged to show Stock Photo")
RMRE0P80–. Elementary botany. Botany. CHAPTER XXL FUNGI CONTINUED (RUSTS AND SAC FUNGI). "Rusts" (Uredineae. 288. The fungi known as "rusts" are very important ones to study, since all the species are parasitic, and many produce serious injuries to crops. 289. Wheat rust (Puccinia graminis).—The wheat rust is one of the best known of these fungi, since a great deal of study has been given to it. One form of the plant occurs in long. Fig. 145. Fig. 14G. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single St, natural size. enlarged to show
RF2WK8EMR–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RMRH93CK–. Botany for high schools. Botany. FUNGI: THE RUST FUNGI 285 cells into the barberry leaf, and starts thie cluster-cup stage again, thus completing the life cycle.. Fig. 260. Fig. 261. Fig. 262. Teleutospore germinating, Promycelium of germinat- Germinating sporidia enter- forming promycelium. ing teleutospore, forming ing leaf of barberry by my- sporidia. celium. Figs. 260-262. Puccinia graminis (wheat rust). (After Marshall-Ward.) jiira ! 451^ Races of the wheat rust.—There are some peculiarities : in the life of the wheat rust, which as stated above occurs on oats, irx 'barley, rye, and man
RF2WK8EE5–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
![. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust attack all parts of the plant e Stock Photo](https://c8.alamy.com/comp/RE2J5P/a-practical-course-in-botany-with-especial-reference-to-its-bearings-on-agriculture-economics-and-sanitation-botany-cwjibftppii-iiur-fig-452-uredo-spores-of-wheat-rust-puccinia-graminis-magnified-from-coulters-quotplant-structuresquot-stage-in-the-life-cycle-of-the-plant-and-to-this-stage-the-old-name-uredo-is-applied-the-spores-being-called-uredo-spores-360-black-rust-teleuto-stage-next-examine-with-a-lens-a-part-of-the-plant-attacked-by-black-rust-do-you-observe-any-difference-ex-cept-in-the-color-do-the-two-kinds-of-rust-attack-all-parts-of-the-plant-e-RE2J5P.jpg ". A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust attack all parts of the plant e Stock Photo")
RMRE2J5P–. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust attack all parts of the plant e
RF2WK8EDH–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RMRE2FM1–. Fundamentals of botany. Botany. 276 STRUCTURE AND LIFE HISTORIES outer surface, and the countless numbers of aciospores are carried by the wind to nearby wheat, where they, in turn, germinate, and the complicated series of events begins again. 267. Diagram of Life History.—The life history of Puccinia graminis m.a.y he outlined as shown on page 275. A FLESHY FUNGUS (AGARICUS) 268. Habitat.—Fleshy fungi are found widely dis- tributed, growing in the soil of fields, pastures, and. Fig. 199.—Meadow mushroom {Agaricus campestris L.). A, view showing under side of pileus; g, gills; a, annulus, or
RF2WK8EEW–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RMRDEXK0–. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 159 Rusts (UredinecB). The rust fungi constitute a larger group of plants than the smuts and exhibit more variety of structure and habit. They may be considered as relatives of the smuts in that the winter spores of the latter may be compared with. Fig. 73.—Spores of rust fungi. 1. A cluster of winter spores of wheat rust (Puccinia graminis) on wheat plant. 2. A winter spore germinating to a thread of four cells (promycelium—basidium), each of which bears a small spore (sporidium) on a stalk. The winter spore germinates in t
RF2WK8E9R–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
![. Minnesota plant diseases. Plant diseases. 2 86 Minnesota Plant Diseases.. Fig. 142.—Spores of the common "black rust" (Puccinia graminis) of wheat. 1. Cluster-cup spores from the barberry plant. 2. Summer spores from the wheat plant. 3. Winter spores from the wheat plant. Highly magnified. After Arthur and Holway. aggerated because the smaller losses due to the presence of the rust in very slight and therefore unheeded quantities may never be computed. These are, nevertheless, a' certain loss. There is only a difference in degree. The en- tire eHmination of /^^^^^ rust would theref Stock Photo](https://c8.alamy.com/comp/RDE3F5/minnesota-plant-diseases-plant-diseases-2-86-minnesota-plant-diseases-fig-142spores-of-the-common-quotblack-rustquot-puccinia-graminis-of-wheat-1-cluster-cup-spores-from-the-barberry-plant-2-summer-spores-from-the-wheat-plant-3-winter-spores-from-the-wheat-plant-highly-magnified-after-arthur-and-holway-aggerated-because-the-smaller-losses-due-to-the-presence-of-the-rust-in-very-slight-and-therefore-unheeded-quantities-may-never-be-computed-these-are-nevertheless-a-certain-loss-there-is-only-a-difference-in-degree-the-en-tire-ehmination-of-rust-would-theref-RDE3F5.jpg ". Minnesota plant diseases. Plant diseases. 2 86 Minnesota Plant Diseases.. Fig. 142.—Spores of the common "black rust" (Puccinia graminis) of wheat. 1. Cluster-cup spores from the barberry plant. 2. Summer spores from the wheat plant. 3. Winter spores from the wheat plant. Highly magnified. After Arthur and Holway. aggerated because the smaller losses due to the presence of the rust in very slight and therefore unheeded quantities may never be computed. These are, nevertheless, a' certain loss. There is only a difference in degree. The en- tire eHmination of /^^^^^ rust would theref Stock Photo")
RMRDE3F5–. Minnesota plant diseases. Plant diseases. 2 86 Minnesota Plant Diseases.. Fig. 142.—Spores of the common "black rust" (Puccinia graminis) of wheat. 1. Cluster-cup spores from the barberry plant. 2. Summer spores from the wheat plant. 3. Winter spores from the wheat plant. Highly magnified. After Arthur and Holway. aggerated because the smaller losses due to the presence of the rust in very slight and therefore unheeded quantities may never be computed. These are, nevertheless, a' certain loss. There is only a difference in degree. The en- tire eHmination of /^^^^^ rust would theref
RF2WK8EEM–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RMRDWPKG–. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. 246 RUSTS (UREDINE./E) appropriate Grass, whereupon hyphse grow out through special thin areas of the wall (Fig. 131, /), to start a fresh generation of the Rust. In this way the disease rapidly spreads during the summer months. In rare cases the Fungus may persist through the winter by. Fig. 131.—Rust of Wheat (Puccinia graminis). a, small part of leaf of Barberry, showing a group of iccidia ; b, group of uredospores (».) and one teleutospore [t.) ; c, germinating teleutospore (only the hypha growing from on
RF2WK8EEF–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RMRDG524–. Essentials of botany. Botany; Botany. 256 ESSENTIALS OF BOTANY one is known as the cluster-cup stage and the others as red . rust and llach rust, according to the usual approximate color of the spores. The rust called Puccinia graminis, growing on wheat, has its cluster-cup stage on the leaves of barberry in June. The spores from the cluster-cups are carried by the wind to the wheat, where they germi- nate and in a few days produce the red rust. A little later the black spores appear, produced by the same myce- lium. This growth is chiefly upon the stems and sheaths.. Fig. 181. A Cluster-Cup
RF2WK8EEC–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2HA7RFR–The take-all fungus, Gaeumannomyces graminis (ascomycota), is a major root-rot pathogen of cereals and grasses. It is most damaging wheat and barley
RMRE58Y5–. Cryptogamen. 308 Schenck: Puccinia graminis auf. Gewisse 7.rteii erzeugen nur die zu Basidien keimenden Teleuto- sporen. andere ausser den Teleutosporen nur Uredosil^ren auf derselben Niihrpfianze, oder andere erst Pykniden und Aecidien und dann Teleutosporen. aber keine Uredo- sporen. Bei den lieteröcisolien Arten gelingt es nur durch entsprechende Aussaatversuche, die Zusainniengehörigkeit der verschiedenen Öporenbildungeu nachzuweisen. So lange dieser Zusammenhang für die einzelnen Formen noch nicht bekannt Var. bezeichnete man die drei Sporenformen mit besonderen riattungsnamen. die T'r
RF2HA7RFK–The take-all fungus, Gaeumannomyces graminis (ascomycota), is a major root-rot pathogen of cereals and grasses. It is most damaging wheat and barley
RMRDWG66–. Elementary botany. Botany. Fig. 159. Fig. 160. Germ tube entering the Germinating uredospore of wheat rust. (After Marshall- leaf through a stoma Ward.). Fig. 101. Teleutospore germi nating, forming promy- cerium. Fig. 162. Proinycelium of ger- minating teleutospore, forming sporidia. Fig. 163. Germinating sporidia entering leaf of barberry by mycelium. uiiiiiug piuiny- iiiiiiaiuig Liiicim p>|ii m 1:, ui uai uei ry uy mycelium, forming sporidia. Figs. 161-163.—Puccinia graminis (wheat rust). (After Marshall-Ward.). Please note that these images are extracted from scanned page images that
RF2HA7RFD–The take-all fungus, Gaeumannomyces graminis (ascomycota), is a major root-rot pathogen of cereals and grasses. It is most damaging wheat and barley
RF2HA8940–The take-all fungus, Gaeumannomyces graminis (ascomycota), is a major root-rot pathogen of cereals and grasses. It is most damaging wheat and barley
RMRE0N3H–. A manual of botany. Botany. Fig. 851. Group of three uredospores, ui and one teleutospore, t, springing from mycelium &h. Fig. 852. Section through leaf of the Barberry infested with Puccinia graminis. o. Epidermis of upper surface of leaf, sp. Spermogonia. p,p. Layers of cells (^ertrfmm), surrounding a, a, the fficidium fruits. After Sachs. same name. They produce spermatia in the same way as the latter. Upon the under surface large spherical bodies are formed (fig. 852), containing a hymenial layer of sterigmata which cut off from their apices a succession of spores known as CBcidiosp
![. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 318 PRACTICAL COURSE IN BOTANY. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust Stock Photo](https://c8.alamy.com/comp/RE2J62/a-practical-course-in-botany-with-especial-reference-to-its-bearings-on-agriculture-economics-and-sanitation-botany-318-practical-course-in-botany-cwjibftppii-iiur-fig-452-uredo-spores-of-wheat-rust-puccinia-graminis-magnified-from-coulters-quotplant-structuresquot-stage-in-the-life-cycle-of-the-plant-and-to-this-stage-the-old-name-uredo-is-applied-the-spores-being-called-uredo-spores-360-black-rust-teleuto-stage-next-examine-with-a-lens-a-part-of-the-plant-attacked-by-black-rust-do-you-observe-any-difference-ex-cept-in-the-color-do-the-two-kinds-of-rust-RE2J62.jpg ". A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 318 PRACTICAL COURSE IN BOTANY. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust Stock Photo")
RMRE2J62–. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 318 PRACTICAL COURSE IN BOTANY. c^^'WjiB'ftp.pii iiur Fig. 452. — Uredo spores of wheat rust (Puccinia graminis), magnified. {From Coulter's "Plant Structures.") stage in the life cycle of the plant, and to this stage the old name uredo is applied, the spores being called uredo-spores. 360. Black rust. — Teleuto stage. Next examine with a lens a part of the plant attacked by black rust. Do you observe any difference ex- cept in the color? Do the two kinds of rust
RMRDX0MA–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Fig. 176. Puccinia Graminis Pers.; a. infected leaf of Berberis vulgaris, nat. size; b. group of aecidia, X5. Uromyces Poae Rabenh.; 6. infected leaf of Ranufirulus JicariUf nat. size; d. group of aecidia, X2o; E.J. Welsford del. mother-cell (fig. 178). The spore mother-cell divides in the usual way, separating the aecidiospore above from its sister-cell below, but the latter here forms an elongated stalk instead of an intercalary cell. Each outgrowth of the basal cell thus produces only a single spore, the mode of formation of which is e
RMRDX0MF–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Fig. 176. Puccinia Graminis Pers.; a. infected leaf of Berberis vulgaris, nat. size; b. group of aecidia, X5. Uromyces Poae Rabenh.; 6. infected leaf of Ranufirulus JicariUf nat. size; d. group of aecidia, X2o; E.J. Welsford del. mother-cell (fig. 178). The spore mother-cell divides in the usual way, separating the aecidiospore above from its sister-cell below, but the latter here forms an elongated stalk instead of an intercalary cell. Each outgrowth of the basal cell thus produces only a single spore, the mode of formation of which is e
RMRH93DX–. Botany for high schools. Botany. Fig. 251. Fig. 252. Fig. 253. Fig. 254. Wheat leaf with red Portion of leaf Natural Enlarged, rust. Natural size. enlarged to show sori. size. Figs. 251-252. Puccinia graminis, red-rust stage (uredo stage). Figs. 253-255. Black rust of wheat, showing sori of teleutospores. Fig. 255. Single free. These uredospores are carried by the wind to other wheat plants, starting new centers of the disease, and thus several suc-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and app
![. Elementary botany. Botany. I Fig- i45« Fig. 146. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single rust, natural size. enlarged to show sorus. Figs. 145, 146.—Puccinia graminis, red-rust stage (uredo stage). Figs. 147-149.—Black rust of wheat, showing sori of teleutospores. reddish-brown or reddish pustules, and is known as the " red rust" (figs. 145, 146). Another form occurs in elongated black pustules, and this form is the one known as the, "black rust" 129. Please note that these images are extracted from scanned page ima Stock Photo](https://c8.alamy.com/comp/RD2HGN/elementary-botany-botany-i-fig-i45-fig-146-fig-147-fig-148-fig-149-wheat-leaf-with-red-portion-of-leaf-natural-size-enlarged-single-rust-natural-size-enlarged-to-show-sorus-figs-145-146puccinia-graminis-red-rust-stage-uredo-stage-figs-147-149black-rust-of-wheat-showing-sori-of-teleutospores-reddish-brown-or-reddish-pustules-and-is-known-as-the-quot-red-rustquot-figs-145-146-another-form-occurs-in-elongated-black-pustules-and-this-form-is-the-one-known-as-the-quotblack-rustquot-129-please-note-that-these-images-are-extracted-from-scanned-page-ima-RD2HGN.jpg ". Elementary botany. Botany. I Fig- i45« Fig. 146. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single rust, natural size. enlarged to show sorus. Figs. 145, 146.—Puccinia graminis, red-rust stage (uredo stage). Figs. 147-149.—Black rust of wheat, showing sori of teleutospores. reddish-brown or reddish pustules, and is known as the " red rust" (figs. 145, 146). Another form occurs in elongated black pustules, and this form is the one known as the, "black rust" 129. Please note that these images are extracted from scanned page ima Stock Photo")
RMRD2HGN–. Elementary botany. Botany. I Fig- i45« Fig. 146. Fig. 147. Fig. 148. Fig. 149. Wheat leaf with red Portion of leaf Natural size. Enlarged. Single rust, natural size. enlarged to show sorus. Figs. 145, 146.—Puccinia graminis, red-rust stage (uredo stage). Figs. 147-149.—Black rust of wheat, showing sori of teleutospores. reddish-brown or reddish pustules, and is known as the " red rust" (figs. 145, 146). Another form occurs in elongated black pustules, and this form is the one known as the, "black rust" 129. Please note that these images are extracted from scanned page ima
RMRDGX2C–. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. o-. 0 3. Fig. 45.—The Summer Wheat Mildew (Vaccinia graminis). A. A section of a portion of a sorus of TIredo Unem-is (the early stage of P. grammis) x 195. B. A section of a portion of a sorus of Puccinia graminis (later stage) x 196. C. Germinating teleutospore. x 490. D. Uredospore (1), Teleutospore (2), Pro-mycelium spore (3). x 490. black disease spots belonging to the Puccinia, mildew, or perfect state of this fungoid growth. If a transverse section (Mg. 45 B) of one of t
RMRH93DG–. Botany for high schools. Botany. Fig. 251. Fig. 252. Fig. 253. Fig. 254. Wheat leaf with red Portion of leaf Natural Enlarged, rust. Natural size. enlarged to show sori. size. Figs. 251-252. Puccinia graminis, red-rust stage (uredo stage). Figs. 253-255. Black rust of wheat, showing sori of teleutospores. Fig. 255. Single free. These uredospores are carried by the wind to other wheat plants, starting new centers of the disease, and thus several suc-. roto Fig. 256. Uredospores of wheat rust, one showing remnant of the pedicel. Fig. 257. Germinating spore of wheat rust. Marshall-Ward.) uredo-
RMREF5T3–. Comparative morphology of Fungi. Fungi. Fig. 387.—1. Botryorhiza Hippocrateae, section of mature and young telium. 2. Uromyces striatus; 3. Puccinia graminis. (1 X 330; 2, 3 X 300; 1 after Olive, 1918; 2, 3, after Sappin-Trouffy, 1896.) and whose spores, thick walled and yellow brown, falling easily from the stipe, can germinate only after a winter's rest (forma fragilipes). In Gymnosporangium the number of daughter cells is generally two; in Phragmidium (Fig. 388, 1 to 4), it may reach twelve. In both genera,. Please note that these images are extracted from scanned page images that may hav
RMREGF3X–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. Fig. 3. Puccinia Graminis; zwei Uredosporen. Fig. 4. JJmmyces Phyteu- matiim; zwei Teleutosporen. Fig. 5. Teleiitosporen von Puccinien: a P. Geranii Cda. h P. Primi spinosae Pers. c P. coronata Cda. d P. verrucosa (Schultz). e P. flosculosorum (Alb. et Schw.). (Fig. 1 — 3 nach de Bar}^ Pig. 5. a, b, d, e nach Corda. c nach Preuss).. Please note that these images are extracted from scanned page images that may have been digitally enhanced
![. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. H 100 r Homo (statin) 1 Rattus (statin) |ioor Xenopus (42Sp48) "I Xenopus (oocyte) Dan/o rerio Animals - Xenopus (42Sp50) Drosophila melanogaster (F1) Bombyx mori Drosophila (F2) - Artemia salina Apis mellifera Onchocerca volvulus j( 98i— Saccharomyces cerevisiae ,»« "P- Ashbya gossypii 5aJ I - Candida a/to/cans IPO i— Trichoderma reesei *— Podospora anserina Puccinia graminis Mucor racemosus (TEF-1) Mucor (TEF-2) Mucor (TEF-3) L Absidia glauca Jf 53 r- Arabidopsis thaliana ^ 701— Caucus carota (1) 66 *- Nicotian Stock Photo](https://c8.alamy.com/comp/RHMDYP/the-biological-bulletin-biology-zoology-biology-marine-biology-h-100-r-homo-statin-1-rattus-statin-ioor-xenopus-42sp48-quoti-xenopus-oocyte-dano-rerio-animals-xenopus-42sp50-drosophila-melanogaster-f1-bombyx-mori-drosophila-f2-artemia-salina-apis-mellifera-onchocerca-volvulus-j-98i-saccharomyces-cerevisiae-quotp-ashbya-gossypii-5aj-i-candida-atocans-ipo-i-trichoderma-reesei-podospora-anserina-puccinia-graminis-mucor-racemosus-tef-1-mucor-tef-2-mucor-tef-3-l-absidia-glauca-jf-53-r-arabidopsis-thaliana-701-caucus-carota-1-66-nicotian-RHMDYP.jpg ". The Biological bulletin. Biology; Zoology; Biology; Marine Biology. H 100 r Homo (statin) 1 Rattus (statin) |ioor Xenopus (42Sp48) "I Xenopus (oocyte) Dan/o rerio Animals - Xenopus (42Sp50) Drosophila melanogaster (F1) Bombyx mori Drosophila (F2) - Artemia salina Apis mellifera Onchocerca volvulus j( 98i— Saccharomyces cerevisiae ,»« "P- Ashbya gossypii 5aJ I - Candida a/to/cans IPO i— Trichoderma reesei *— Podospora anserina Puccinia graminis Mucor racemosus (TEF-1) Mucor (TEF-2) Mucor (TEF-3) L Absidia glauca Jf 53 r- Arabidopsis thaliana ^ 701— Caucus carota (1) 66 *- Nicotian Stock Photo")
RMRHMDYP–. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. H 100 r Homo (statin) 1 Rattus (statin) |ioor Xenopus (42Sp48) "I Xenopus (oocyte) Dan/o rerio Animals - Xenopus (42Sp50) Drosophila melanogaster (F1) Bombyx mori Drosophila (F2) - Artemia salina Apis mellifera Onchocerca volvulus j( 98i— Saccharomyces cerevisiae ,»« "P- Ashbya gossypii 5aJ I - Candida a/to/cans IPO i— Trichoderma reesei *— Podospora anserina Puccinia graminis Mucor racemosus (TEF-1) Mucor (TEF-2) Mucor (TEF-3) L Absidia glauca Jf 53 r- Arabidopsis thaliana ^ 701— Caucus carota (1) 66 *- Nicotian
RMREGF3W–. Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz. Cryptogams -- Germany; Cryptogams -- Austria; Cryptogams -- Switzerland. Fig. 3. Puccinia Graminis; zwei Uredosporen. Fig. 4. JJmmyces Phyteu- matiim; zwei Teleutosporen. Fig. 5. Teleiitosporen von Puccinien: a P. Geranii Cda. h P. Primi spinosae Pers. c P. coronata Cda. d P. verrucosa (Schultz). e P. flosculosorum (Alb. et Schw.). (Fig. 1 — 3 nach de Bar}^ Pig. 5. a, b, d, e nach Corda. c nach Preuss).. Please note that these images are extracted from scanned page images that may have been digitally enhanced
RMRDWBP6–. The essentials of botany. Botany. 170 BOTANY. parasite, and at length burst through the epidermis (Fig. 94, A and I). The conidia quickly drop out and are car-. FiG. 94.—Wheat-rust (Puccinia graminis). f, a cross-section of a Barberry- leaf through a mass of Cluster-cups; a, o, a, cups opened and shedding their conidia; p, and A, above, cups not yet opened; so, ap, spermogones which pro- duce spermatia, whose function is not known. U, three Red-rust spores, ur, on stalks; f, a Black-rust spore. ///, a mass of Bla<!k-rust spores bursting through the epidermis, e, of a leaf. All highly magn
RMRDJGWJ–. The essentials of botany. Botany. 170 BOTANY. parasite, and at length burst through the epidermis (Fig. 94, A and I). The oonidia quickly drop out and are car-. FiG. 94.—Wheat-nist (Puccinia graminis). I, a cross-section of a Barberry- leaf through a mass of Cluster-cups; a, a, a, cups opened and slieddingr their conidia; p, and A, above, cu^s not yet opened; sp, sp, spermogones which pro- duce spermatia, whose function is not Icnown. ii, three Red-rust spores, ttr, on stalks: t, a Black-rust spore. 7/J, a mass of Black-rust spores bursting through the epidermis, e, of a leaf. All highly mag
RMRJRMEN–. Aus der Heimath. Natural history; Natural history -- Germany. 505 506 trettcvoft, Puccinia graminis ttiitt{)ei(en. 3}a6ci 6(ei6tfvct= tid) ncd) 511 cntidjeiteu, cb bie[er ©laute fc ju iht» fteljcn i'ci, taà ter i'antMtiann ben 9?er6eri§cnvcft â bcr atlertiiig« bitvd) fcie crangerottie garbc fe^r auffallt â atö teil ituftcditiiijöftoff tamite, ctcv ob cS nur ein nidjt na()er ge^M-üftcv tSvfa!)ninciofa§ n^av. Seit tev mitcjetbeilten 4^cetad)tunj; ron te 5?anj, bay auf JiDjjijenblatter au^jcfäctc gppvcu bcö 5?erberit5eu= rofteS auf jenen beu 9toggenroft ^erocriiefen, ift nidjt nur jen
RM2CDD9YK–. The rusts of Australia, their structure, nature, and classification . 0. II. Robinson, Phot PUCCINIA. RUTACEAE, TREMANDREAE, and VIOLACEAE 268 Explanation of Plates. PLATE XIV. {All Figures X ^50.) PUCCIXIA GRAMINIS on VARIOUS GRASSES.Fig. 113. Teleutospores and mesospores on wild oat, Avena fatua. 114. Teleutospores on barley, Hordeum vulgare. 115. 116. Teleutospores, mesospores, and uredospore, one of the first three-celled, on native barley, Echinofogon ovatus. 117. Teleutospores on cocksfoot, Dactylis glomcrata. 118. Teleutospores and uredospores on silver grass, Fesiuca bromoides. 1 hi.
RMRCDPAC–. Diseases of economic plants. Plant diseases. %>-. Tig. 217. — Barberry rust enlarged. After Stakman. Witches-brooms are frequently formed. It has been found in this country on two species of bamboo. Diseased plants should be burned. BARBERRY Rust (Puccinia graminis, .^cidium). — This is of chief interest on account of the damage the other stages of the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Stevens, Frank Lin
RMRCTR01–. Descriptions of new species of fungi. Fungi. 182 DECADES OF MAINE FUNGI.. Puccinia, Pers. Spores of two kinds. Early spores, or Uredo spores, globose or nearly so, unicellular, at first with a short peduncle which ultimately falls away, yellow or brown. Later spores uniseptate, supported on a distinct peduncle. This genus is largely represented in North America. Very few are yet known from Maine. Puccinia graminis, Pers. Uredo-form, (Trichobasis rubigo-vera, Lev.) Spots yellow, heaps oval, scattered, generally on the upper surface; epidermis at length bursting longitudinally ; spores sub-glo
RF2HA81AR–Sooty mould black mould on wheat ears, Cladosporium herbarum Alternaria alternata. Cereal diseases, ear diseases.
RF2HH9APA–Soybean root infected by a disease that causes the entire plant to shrivel and yield losses.
RF2WBRF1C–Yellow or stripe rust, Puccinia striiformis var striiformis, a severe infection on a wheat crop
RMRCTPYY–. Descriptions of new species of fungi. Fungi. Puccinia, Pers. Spores of two kinds. Early spores, or Uredo spores, globose or nearly so, unicellular, at first with a short peduncle which ultimately falls away, yellow or brown. Later spores uniseptate, supported on a distinct peduncle. This genus is largely represented in North America. Very few are yet known from Maine. Puccinia graminis, Pers. Uredo-form, (Trichobasis rubigo-vera, Lev.) Spots yellow, heaps oval, scattered, generally on the upper surface; epidermis at length bursting longitudinally ; spores sub-globose, reddish brown, easily d
RF2WBRF2M–Yellow or stripe rust, Puccinia striiformis var striiformis, a severe infection on a wheat crop
RMRCDA1K–. Diseases of cereal and forage crops in the United States in 1921. Grain Diseases and pests United States; Forage plants Diseases and pests United States. 2l8 OATS - Stem rust Stem rust caused by puccinia graminis Pers. Stem rust evidently was not as generally distributed as crown rust, as will be seen by the accompanying map (Fig. 'jG). Neither did the stem rust cause such great reductions in yield. However, it was quite generally present in the more northern oat-?:,romug states. In the extreme South the stem rust seems to be much less important than the crown rust, while in the northern sta
RF2WBRF2B–Yellow or stripe rust, Puccinia striiformis var striiformis, a severe infection on a wheat crop
RMRCHE8A–. Die pilze, eine einfu?hrung in die kenntnis ihrer formenreihen ... Fungi. Basidiomycetes. 99. LI 8- %&. K. 1. Ustilago avenae. ,£>emtöafibie. 2. Urocystis violae. ^emiBafibie. 3. Puccinia graminis. S5afibte. 4. Auricularia auricula judae. a) iöajibte, b) Stetigmen mit (Sporen. 5. Tremella lutescens, duerfcf>ttitt burdj ba§ SBaftbienlaßet, mit ®OTtibien. 6. Calocera viscosa. SBafibien. 7. Aleurodisciis amorphus. ©ajtbien. 8. Merulius lacrimalis, a^ (Scfynallenseiletx, b) SJafibien. 9. Fomes annosus, ©afibien. 10, Bovistaplumbea, Söaftbten. (2nie§ttad)@TtgIer*$rcmtI, 9lat. ^Sflariäe
RF2WBRF1H–Yellow or stripe rust, Puccinia striiformis var striiformis, a severe infection on a wheat crop
RMRCHX0D–. Die Natürlichen Pflanzenfamilien nebst ihren Gattungen und wichtigeren Arten, insbesondere den Nutzpflanzen, unter Mitwirkung zahlreicher hervorragender Fachgelehrten begründet. Botany. Fig. 10. Ein Spermogonium von Aecidium Eupliorbiae Pers. im Durchschnitte 2U0/1 (Nach De Bary.) 7 wi-. Fig. 17. Puccinia graminis Pers. A Eine keimende Teleutospore. B Ein abgerissenes Promycelium. C Eine keimende Sporidie, deren Keimschlauch in eine Epidermiszelle eingedrungen ist. D Uredospore mit 3 Keimschläuchen. C, D 390(1; A, B etwas stärker vergr. (Nach Sachs.). Please note that these images are extrac
RF2WBRF2G–Yellow or stripe rust, Puccinia striiformis var striiformis, a severe infection on a wheat crop
![. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker. Plant diseases. ^,à %/S).. m- 24. ®cr gemeine ©etreiberoft (Puccinia graminis fers.j A (Sin 2türfd)en ^ioggenblatt mit met)reren l)eroorbred)enben roten .öäufd)en oon Urebo = fporen. ©djuiadM'ergröfjert. B (Sin otücfd;en 3f{oggenbIattfd)eibe mit mebrcren :^oroorbred)enben ^"W'^ä«, t»« fdjmarjen Ie!eutofporciU)äufd)eii. 5d)umd) ""i''^ele"tO' oergröBert. C Suvaifdjuitt burdj ein @poren= i'-'^'-'^" ^'^^â¢^^"â t)äufdjen, jetgt bie xHbidinürung be Stock Photo](https://c8.alamy.com/comp/RCJM6X/die-krankheiten-der-pflanzen-ein-handbuch-fur-land-und-forstwirte-gartner-gartenfreunde-und-botaniker-plant-diseases-s-m-24-cr-gemeine-etreiberoft-puccinia-graminis-fersj-a-sin-2trfden-ioggenblatt-mit-metreren-leroorbredenben-roten-ufden-oon-urebo-=-fporen-djuiadmergrfjert-b-sin-otcfden-3foggenbiattfdeibe-mit-mebrcren-oroorbredenben-quotw-t-fdjmarjen-ie!eutofporciuufdeii-5dumd-quotquotielequotto-oergrbert-c-suvaifdjuitt-burdj-ein-@poren=-i-quot-quot-tufdjen-jetgt-bie-xhbidinrung-be-RCJM6X.jpg ". Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker. Plant diseases. ^,à %/S).. m- 24. ®cr gemeine ©etreiberoft (Puccinia graminis fers.j A (Sin 2türfd)en ^ioggenblatt mit met)reren l)eroorbred)enben roten .öäufd)en oon Urebo = fporen. ©djuiadM'ergröfjert. B (Sin otücfd;en 3f{oggenbIattfd)eibe mit mebrcren :^oroorbred)enben ^"W'^ä«, t»« fdjmarjen Ie!eutofporciU)äufd)eii. 5d)umd) ""i''^ele"tO' oergröBert. C Suvaifdjuitt burdj ein @poren= i'-'^'-'^" ^'^^â¢^^"â t)äufdjen, jetgt bie xHbidinürung be Stock Photo")
RMRCJM6X–. Die krankheiten der pflanzen, ein handbuch fur land-und forstwirte, gartner, gartenfreunde und botaniker. Plant diseases. ^,à %/S).. m- 24. ®cr gemeine ©etreiberoft (Puccinia graminis fers.j A (Sin 2türfd)en ^ioggenblatt mit met)reren l)eroorbred)enben roten .öäufd)en oon Urebo = fporen. ©djuiadM'ergröfjert. B (Sin otücfd;en 3f{oggenbIattfd)eibe mit mebrcren :^oroorbred)enben ^"W'^ä«, t»« fdjmarjen Ie!eutofporciU)äufd)eii. 5d)umd) ""i''^ele"tO' oergröBert. C Suvaifdjuitt burdj ein @poren= i'-'^'-'^" ^'^^â¢^^"â t)äufdjen, jetgt bie xHbidinürung be
RF2WBRF23–Yellow or stripe rust, Puccinia striiformis var striiformis, a severe infection on a wheat crop
RF2HA7PHN–Barley powdery mildew or corn mildew caused by the fungus Blumeria graminis is a significant disease affecting cereal crops.
RF2HA7PHR–Barley powdery mildew or corn mildew caused by the fungus Blumeria graminis is a significant disease affecting cereal crops.
RMREF5NW–. Comparative morphology of Fungi. Fungi. UREDINALES 581 Under unfavorable conditions, as under water or in too low oxygen pressure, the germ tube of many species, as Puccinia Malvacearum (Kle- bahn, 1914) and P. graminis (Jaczewski, 1910), as also the aeciospores with basidial germination as in Endophyllum Sempervivi (Nypels, 1897), develops to long, slender, branched hyphae which form basidiospores only when they reach the surface. In still other forms, as Gymnosporan- gium clavariaeforme (Blackman, 1904) and occasionally also Puccinia Malvacearum (Fig. 389, 10 to 13), the four basidial cell
RF2HA7PHW–Barley powdery mildew or corn mildew caused by the fungus Blumeria graminis is a significant disease affecting cereal crops.
RMRDDYBP–. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. Fig. 45.—The Summer Wheat Mildew (Puccirda graminis). A. A section of a portion of a sorus of Fredo linearis (the early stage of P. gramiTiis) x 195. B. A section of a portion of a sorus of PucciTim jrammis .(later stage) x 195. C. Genoinating teleutospore. x 490. D. TJredospore (1), Teleutospore (2), Pro-mycelium spore (3). x 490. black disease spots belonging to the Puccinia, mildew, or perfect state of this fungoid growth. If a transverse section (Fig. 45 B) of one of the di
RF2HA7PHP–Barley powdery mildew or corn mildew caused by the fungus Blumeria graminis is a significant disease affecting cereal crops.
RF2HA7PHY–Barley powdery mildew or corn mildew caused by the fungus Blumeria graminis is a significant disease affecting cereal crops.
RMRE3CX2–. A handbook of cryptogamic botany. Cryptogams. .Fig. 274,—Puccinia graminis Pers. t, teleutospores ;«, uredo- spores(x 390). (After Sachs.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bennett, Alfred W. (Alfred William), 1833-1902; Murray, George Robert Milne, 1858-. London, New York, Longmans, Green, and Co.
Search Results for Puccinia graminis Stock Photos and Images (318)
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