Leaves with puccinia graminis Stock Photos and Images
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Leaves with puccinia graminis Stock Photos and Images
RMEBX0D5–common barberry, European barberry (Berberis vulgaris), leaves with Puccinia graminis, stem rusts, Germany, North Rhine-Westphalia
RF2WBRDTC–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
RMJ36FHE–Severe infection black stem rust (Puccinia graminis) on bearded (awned) wheat leaves, stems & ears
RMAPG2YY–Powdery mildew Blumeria graminis f.sp. hrdei brown rust Puccinia hordei infection on seedling barley leaf
RM2AJ7G88–Soils and crops of the farm . s caused by, or rather is, the general term forseveral species of fungi, the best known of which iscalled by botanists Puccinia graminis. The life his-tory of this fungus is supposed to be about as follows:Certain forms of the plant grow in the leaves of thebarbary plants and perhaps other plants. On theleaves of the barbary plant there appears in the springcertain orange-colored spots. These spots are com-posed of many spores which, getting upon the leavesof the wheat, in some way not well understood, enterthrough the breathing pores. The spores producemicroscopi
RMPG4ARF–. Botany for agricultural students . Botany. BLACK RUST OF GRAIN (PUCCINIA GRAMINIS) 397. Rye, and Barley, and occurs on other Grasses. The presence of the mycelium in the host is first known through the appearance of reddish spots or lines on the stems and leaves in late spring or early sum- mer. The reddish spots or lines are regions of spore production. They are pustules or blister- like structures caused by masses of spore-bearing hyphae which push up the epidermis until it is finally ruptured (Fig. 353). The reddish color of the pustules is due to the reddish color of the spores. These sp
RMBY1K8B–Powdery mildew (Erysiphe graminis) & brown rust (Puccinia triticina) on leaf of wild brome grass
RFCEGGCP–Diseases of plants. Publication of the book 'Meyers Konversations-Lexikon', Volume 7, Leipzig, Germany, 1910
RMC7514X–Brown rust (Puccinia hordei) early infection on seedling barley leaf with some powdery mildew
RF2WBRDXF–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
RM2AJDATT–Elementary botany . 20. Fig. 221. Germinating uredospore of Germ tube entering the wheat rust. (After Marshall- leaf through a stoma.Ward.). Fig. 222.Teleutospore germi-nating, forming pro my-celium. Figs. 222-224.— Fig. 223.Pro mycelium of ger-minating teleutospore,forming sporidia.Puccinia graminis (wheat rust) Germinating sporidia entering leafof barberry by mycelium. (After Marshall-Ward.) FUNGI: RUSTS. 193 the leaves of the barberry, they germinate and produce the cluster cup again.The plant has thus a very complex life history. Because of the presence ofseveral different forms in the lif
RMPG41FG–. 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
RF2WBRDT1–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
RM2CDC2XT–. Introduction to the study of fungi, their organography, classification, and distribution for the use of collectors . sne. ^nd couvcrscly the promycehal spores of Puccinia graminis (Fig 118) may be usedto inoculate the leaves of the berberry, and produce thereonAecidium herheridis. This is the theory and its application,which we will here leave as itstands. In another group, theBraclnj - pueciniae, spermogonia,uredospores, and teleutospores arefound on the same species of plant,but the aecidia are unknown. Tothis succeeds the Hcmi-fuecinia,in which uredospores and teleuto-spores occur on the
RF2WBRDW1–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
RMRHYJ9A–. Beginners' botany. Botany. 192 BEGINNERS' BOTANY packed in the perithecia. They do not ripen in the autumn, but fall to the ground with the leaf, and there remain securely pro- tected among the dead foliage. The following spring they mature and are liberated by the decay of the perithecia. They are then ready to attack the unfolding leaves of the willow and repeat the work of the summer before. The wheat rust —The development of some of the rusts, as the common wheat rust (Puccinia graminis), is even more interesting and complicated than that of the mildews. Wheat rust is also a true parasit
RF2WBRDTA–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
RMRH8DRP–. Botany of the living plant. Botany. EU-MYCETES.-(^) BASIDIOMYCETES 443 colour of rust of iron. They are found in sucii (luantity as to attract public attention, and this has provided the name. The most famihar example, as it is also economically the most important, is the Rust of Wheat, Puccinia graminis. In June and July the green leaves of the Wheat are often seen to lose their colour (Fig. 375)- Yellow patches appear between the veins, and run together into hues that follow the softer mesophyll. The cpidcrnu;, bursts, and innumerable orange spores are set free, which arc easily carried as
RF2WBRDXJ–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
![. Botany of the living plant. Botany. EU-MYCETES.- (&) BASIDIOMYCETES 443 colour of rust of iron. They are found in sueh quantity as to attraet public attention, and this has provided tlie name. The most familiar example, as it is also economically the most important, is the Rust of Wheat, Puccinia graminis. In June and July the green leaves of the Wheat are often seen to lose their colour (^^"'g- 375)- Yellow patches appear between the veins, and run together into Imcs that follow the softer mesophyll. The epidermis bursts, and innumerable orange spores are set free, which are easily Stock Photo](https://c8.alamy.com/comp/RDY624/botany-of-the-living-plant-botany-eu-mycetes-amp-basidiomycetes-443-colour-of-rust-of-iron-they-are-found-in-sueh-quantity-as-to-attraet-public-attention-and-this-has-provided-tlie-name-the-most-familiar-example-as-it-is-also-economically-the-most-important-is-the-rust-of-wheat-puccinia-graminis-in-june-and-july-the-green-leaves-of-the-wheat-are-often-seen-to-lose-their-colour-quotg-375-yellow-patches-appear-between-the-veins-and-run-together-into-imcs-that-follow-the-softer-mesophyll-the-epidermis-bursts-and-innumerable-orange-spores-are-set-free-which-are-easily-RDY624.jpg ". Botany of the living plant. Botany. EU-MYCETES.- (&) BASIDIOMYCETES 443 colour of rust of iron. They are found in sueh quantity as to attraet public attention, and this has provided tlie name. The most familiar example, as it is also economically the most important, is the Rust of Wheat, Puccinia graminis. In June and July the green leaves of the Wheat are often seen to lose their colour (^^"'g- 375)- Yellow patches appear between the veins, and run together into Imcs that follow the softer mesophyll. The epidermis bursts, and innumerable orange spores are set free, which are easily Stock Photo")
RMRDY624–. Botany of the living plant. Botany. EU-MYCETES.- (&) BASIDIOMYCETES 443 colour of rust of iron. They are found in sueh quantity as to attraet public attention, and this has provided tlie name. The most familiar example, as it is also economically the most important, is the Rust of Wheat, Puccinia graminis. In June and July the green leaves of the Wheat are often seen to lose their colour (^^"'g- 375)- Yellow patches appear between the veins, and run together into Imcs that follow the softer mesophyll. The epidermis bursts, and innumerable orange spores are set free, which are easily
RF2WBRDT6–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
RMRDC16T–. Botany for agricultural students . Botany. BLACK RUST OF GRAIN (PUCCINIA GRAMINIS) 397. Rye, and Barley, and occurs on other Grasses. The presence of the mycelium in the host is first known through the appearance of reddish spots or lines on the stems and leaves in late spring or early sum- mer. The reddish spots or lines are regions of spore production. They are pustules or blister- like structures caused by masses of spore-bearing hyphae which push up the epidermis until it is finally ruptured (Fig. 353). The reddish color of the pustules is due to the reddish color of the spores. These sp
RF2WBRDT3–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
RMRDWCX6–. Botany, with agricultural applications. Botany. BLACK RUST OF GRAIN (PUCCINIA GRAMINIS) 397. Rye, and Barley, and occurs on other Grasses. The presence of the mycelium in the host is first known through the appearance of reddish spots or lines on the stems and leaves in late spring or early sum- mer. The reddish spots or lines are regions of spore production. They are pustules or blister- like structures caused by masses of spore-bearing hyphae which push up the epidermis until it is finally ruptured {Fig. 353). The reddish color of the pustules is due to the reddish color of the spores. The
RF2WBRDRT–Crown rust of grasses fungi (Puccinia Series coronata). Infect leaf of common buckthorn (Rhamnus cathartica).
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
RMRH92KD–. Botany for agricultural students. Plants. BLACK RUST OF GRAIN (PUCCINIA GRAMINIS) 397 Rye, and Barley, and occurs on other Grasses. The presence of the mycehum in the host is first known through the appearance of reddish spots or lines on the stems and leaves in late spring or early sum- mer. The reddish spots or lines are regions of spore production. They are pustules or blister- like structures caused by masses of spore-bearing hyphae which push up the epidermis until it is finally ruptured {Fig. 353). The reddish color of the pustules is due to the reddish color of the spores. These spore
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
RMRH8092–. Botany of the living plant. Botany; Plants. Fig. 330. Part of shoot of Barberry with leaves attacked by Puccinia graminis which forms yellow cushions, or cluster-cups, on the leaf-blades and stalks. (After Marshall Ward.) Sections through a diseased leaf of wheat in summer reveal the branched and septate hyphae closely packed in the intercellular spaces, and investing the green cells. They accumulate below the epidermis, forming a dense mass or sorus, the end of individual hyphae swelling into the uredospores, which, increasing in bulk and number, burst the epidermis, and are shed (Fig. 331)
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
RMRH809A–. Botany of the living plant. Botany; Plants. 434 BOTANY OF THE LIVING PLANT and the aecidium-stage on the common Nettle, causing contorted swellings upon its stem and leaves. Thus the Rust of Wheat is an example of a life-history that is not uncommon.. Fig. 330. Part of shoot of Barberry with leaves attacked by Puccinia graminis which forms yellow cushions, or cluster-cups, on the leaf-blades and stalks. (After Marshall Ward.) Sections through a diseased leaf of wheat in summer reveal the branched and septate hyphae closely packed in the intercellular spaces, and investing the green cells. Th
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
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
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
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
RF2HA81B4–Sooty mould black mould on wheat ears, Cladosporium herbarum Alternaria alternata. Cereal diseases, ear diseases.
RMRCDP80–. Diseases of field crops. Plant diseases. 52 California Agricultural Extension Service [Cir. 121 The small, light-red, pustules of crown, or leaf, rust, Puccinia corona fa, which attacks only oats among the cereals, are found mainly on the leaves. They are slow to open and covered with a thin membrane of the plant epidermis. This fungus disease is less destructive than stem rust. In the latter disease, long, dark-red or black pustules of rust spores, P.. Fig. 32.—Leaf-blotch disease of rice. graminis var. avenae (fig. 38, p. 62), break out on the leaves and on the leaf sheaths which enclose t
RF2HA81AK–Sooty mould black mould on wheat ears, Cladosporium herbarum Alternaria alternata. Cereal diseases, ear diseases.
RF2HA80G0–Fusarium ear blight, Fusarium head blight, FHB, or scab, is a fungal disease of cereals: wheat, barley, oats, rye and triticale.
RMRDYFY8–. A textbook of botany for colleges and universities ... Botany. 82 MORPHOLOGY The basidiospore develops a mycelium that penetrates the young seedling of the host plant. (b) Uredinales General character. — These are the well-known rusts, all of them being destructive parasites, whose mycelia live in the intercellular spaces of higher plants, especially in the leaves. The best-known form is Puccinia graminis, one of the wheat rusts, and an outhne of its life history will serve as an illustration of the group. Wheat rust. —The mycelium traverses the tissues of the young wheat plant, and during t
RF2HA80FW–Fusarium ear blight, Fusarium head blight, FHB, or scab, is a fungal disease of cereals: wheat, barley, oats, rye and triticale.
RF2HA81AR–Sooty mould black mould on wheat ears, Cladosporium herbarum Alternaria alternata. Cereal diseases, ear diseases.
RF2HA8922–Barley yellow dwarf (BYD) is a plant disease caused by the barley yellow dwarf virus (BYDV) and is the most widely distributed viral disease of cereal
RF2HA893X–Barley yellow dwarf (BYD) is a plant disease caused by the barley yellow dwarf virus (BYDV) and is the most widely distributed viral disease of cereal
RF2HA893T–Barley yellow dwarf (BYD) is a plant disease caused by the barley yellow dwarf virus (BYDV) and is the most widely distributed viral disease of cereal
RF2WK8EN3–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2WK8EDX–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2WK8EMR–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2WK8EE5–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2WK8EDH–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2WK8EEW–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2WK8E9R–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2WK8EEM–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
RF2WK8EEF–Wheat leaf or brown rust Puccinia trticina (recondita) erupting sporulating pustules on a cereal.
Search Results for Leaves with puccinia graminis Stock Photos and Images (66)
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