Quick filters:
Page 14 of 17
Hyphae in fungi Stock Photos and Images
![. A textbook of botany for colleges and universities ... Botany. SAPROPHYTISM AND SYMBIOSIS 755 milk, and the bacteria of hay infusions (figs. 14-17). Among the com- moner saprophytic fungi are the molds {e.g. Penicillium and Mucor, fig. 1078), the yeasts (figs. 168-173), a-^d "^ost fleshy fungi (figs. 197-198). Saprophytic fungi and bacteria occur wherever there is dead organic matter, particularly in humus, the processes of decay being associated with these organisms. The vegetative body of fungi, the mycelium, is composed of delicate threads, the hyphae (fig. 1078), which penetrate the Stock Photo](https://c8.alamy.com/comp/RDHK3P/a-textbook-of-botany-for-colleges-and-universities-botany-saprophytism-and-symbiosis-755-milk-and-the-bacteria-of-hay-infusions-figs-14-17-among-the-com-moner-saprophytic-fungi-are-the-molds-eg-penicillium-and-mucor-fig-1078-the-yeasts-figs-168-173-a-d-quotost-fleshy-fungi-figs-197-198-saprophytic-fungi-and-bacteria-occur-wherever-there-is-dead-organic-matter-particularly-in-humus-the-processes-of-decay-being-associated-with-these-organisms-the-vegetative-body-of-fungi-the-mycelium-is-composed-of-delicate-threads-the-hyphae-fig-1078-which-penetrate-the-RDHK3P.jpg ". A textbook of botany for colleges and universities ... Botany. SAPROPHYTISM AND SYMBIOSIS 755 milk, and the bacteria of hay infusions (figs. 14-17). Among the com- moner saprophytic fungi are the molds {e.g. Penicillium and Mucor, fig. 1078), the yeasts (figs. 168-173), a-^d "^ost fleshy fungi (figs. 197-198). Saprophytic fungi and bacteria occur wherever there is dead organic matter, particularly in humus, the processes of decay being associated with these organisms. The vegetative body of fungi, the mycelium, is composed of delicate threads, the hyphae (fig. 1078), which penetrate the Stock Photo")
RMRDHK3P–. A textbook of botany for colleges and universities ... Botany. SAPROPHYTISM AND SYMBIOSIS 755 milk, and the bacteria of hay infusions (figs. 14-17). Among the com- moner saprophytic fungi are the molds {e.g. Penicillium and Mucor, fig. 1078), the yeasts (figs. 168-173), a-^d "^ost fleshy fungi (figs. 197-198). Saprophytic fungi and bacteria occur wherever there is dead organic matter, particularly in humus, the processes of decay being associated with these organisms. The vegetative body of fungi, the mycelium, is composed of delicate threads, the hyphae (fig. 1078), which penetrate the
RF2TDNPWH–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMREKBET–. Civic biology; textbook of problems, local and national, that can be solved only by civic coöperation. Biology. 198 CIVIC BIOLOGY thread, the liyplia^ which in some fungi is tubular and in others is septate, that is, composed of cells end-to-end. H3'ph8e branch- continually and seek the cracks and minutest pores, and so are able to burrow and digest their way mto all sorts of apparently solid substances. The hyphae are functionally of two kinds : first, the threads that burrow and feed in or on. Fig. 97. Two common molds in different stages of growth A, B, C, a common blue mold, Penicilllum;
RF2TDNPMM–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMRDE1EG–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. DETAILED ACCOUNT OF SPECIFIC DISEASES OP PLANTS St$ The oogonia and antheridia are not so common as the conidiospores. If the shriveled parts of the leaves are examined in September, the. Fio. 186.—(irape leaf attacked by mildew, Plasmopara vilicola, Cold Spring Harbor, L. I., Aug. 2, 1915. oogonia will be found as spheric organs attached to the intercellular hyphae by a short stalk. One or several filamentous curved antheridia are formed near the oogonia to the surface of which they be
RF2TDNK6T–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
![. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. IV] PEZIZALES 121 multicellular archicarps, each rather like the single scolecite of Ascobolus. The cells are not connected by pores, and ascogenous hyphae arise from several in each archicarp. In R. brunneiis Dangeard reports a single archicarp, consisting of a short, somewhat twisted branch. Ramlow has also recorded a single archicarp in R. polysporus and Barker in an unnamed species. Overton has made some study of the development of the numerous spores in R. Pelletieri. The ascus nucleus divides as usual to form eight free nuclei, thes Stock Photo](https://c8.alamy.com/comp/RDTNNH/fungi-ascomycetes-ustilaginales-uredinales-fungi-iv-pezizales-121-multicellular-archicarps-each-rather-like-the-single-scolecite-of-ascobolus-the-cells-are-not-connected-by-pores-and-ascogenous-hyphae-arise-from-several-in-each-archicarp-in-r-brunneiis-dangeard-reports-a-single-archicarp-consisting-of-a-short-somewhat-twisted-branch-ramlow-has-also-recorded-a-single-archicarp-in-r-polysporus-and-barker-in-an-unnamed-species-overton-has-made-some-study-of-the-development-of-the-numerous-spores-in-r-pelletieri-the-ascus-nucleus-divides-as-usual-to-form-eight-free-nuclei-thes-RDTNNH.jpg ". Fungi, ascomycetes, ustilaginales, uredinales. Fungi. IV] PEZIZALES 121 multicellular archicarps, each rather like the single scolecite of Ascobolus. The cells are not connected by pores, and ascogenous hyphae arise from several in each archicarp. In R. brunneiis Dangeard reports a single archicarp, consisting of a short, somewhat twisted branch. Ramlow has also recorded a single archicarp in R. polysporus and Barker in an unnamed species. Overton has made some study of the development of the numerous spores in R. Pelletieri. The ascus nucleus divides as usual to form eight free nuclei, thes Stock Photo")
RMRDTNNH–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. IV] PEZIZALES 121 multicellular archicarps, each rather like the single scolecite of Ascobolus. The cells are not connected by pores, and ascogenous hyphae arise from several in each archicarp. In R. brunneiis Dangeard reports a single archicarp, consisting of a short, somewhat twisted branch. Ramlow has also recorded a single archicarp in R. polysporus and Barker in an unnamed species. Overton has made some study of the development of the numerous spores in R. Pelletieri. The ascus nucleus divides as usual to form eight free nuclei, thes
RF2TDNRTW–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMRD3K5W–. Cyclopedia of farm crops. Farm produce; Agriculture. Nature of the disease fungi and their action. Fungi are a low class of plants, consisting of fine threads, called hyphce, many hyphae forming the mycelium. The mycelium grows in the dead or living parts, extracting certain food substances therefrom. After varying periods, fruiting bodies are formed, which develop spores. These fruiting bod- ies have various shapes, varying from microscopic structures to the large punks or toadstools so com- monly found on older trees. The spores are discharged into the air, and are dis- tributed from one t
RF2TDNKC7–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMRDX0G6–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. 212 PROTOBASIDIOMYCETES [CH. â â¢:⢠:â m Fig. i88. Uromyces Poae Raben.; conjut^nte divi<;ions in aecidium, x 1330; after Blacliman and Fraser. fication and in some cases it shows but few of the characters of normal mitosis. In the spermatial hyphae of Gymnosporangium clavariaeforme, for example, Blackman has described a condensation of the nucleus to form a deeply staining body out of which the nucleolus is squeezed. The chromatin is drawn apart into two apparently homogeneous masses between which a kinoplasmic thread represents the
RF2TDNM8F–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMRDEG7Y–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. CHAPTER V CHARACTERISTICS OF THE TRUE FUNGI CLASS III. EUMYCETES The true fungi or hyphomycetes {iKpri, a web + yuu/cTjs, a mushroom; are thallophytes in which the thallus, as the Greek derivation implies consists of a system of threads {kyphm) which form a cobwebby struc- ture known as the mycelium (Eig. ii). A single thread of the myceliurr is an hypha (plural hyphae) and a hypha may be unicellular, or multi- cellular. All true fungi are colorless, that is they are chlorophylless and
RF2TDNKHP–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMREF76H–. Comparative morphology of Fungi. Fungi. Fig. 224.—Pushdaria vesiculosa. 1. Conidiophore from mycelium. 2. Tip of conidio- phore after discharge of spores. 3 to 5. Ascospores and germ tubes developing directly to conidiophore. Plicaria repanda. 6. Branched conidiophores. 7 Germinating conidia. 8. Mature ascus. (1 to 6 X 200; 7, 8 X 240; after Brefeld.) interior of the ascogonium and migrate into the ascogenous hyphae, as in cross-fertilized ascogonia. Thus amphimixis is no longer obligatory but facultative and, according to external conditions, may be replaced by autogamy. The hemiangiocarpou
RF2TDNKHW–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMREER64–. Comparative morphology of Fungi. Fungi. 444 COMPARATIVE MORPHOLOGY OF FUNGI rhizomorphs become several millimeters thick, terete, white, tough and flexible when young, gray to black and brittle in age. They consist of a ground tissue of thin-walled vegetative hyphae in which are imbedded a number of functionally specialized hyphae (fibrous, vascular, etc., Fig. 268). These enable the fungus to penetrate unfavorable regions, such as cracks in the walls, and thus reach fresh uninfected wood to continue. Fig. 286.—Merulius lacrymans. Fructifications on rotting beam. (Natural size; after Falck,
RF2TDNT3T–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMREFA7R–. Comparative morphology of Fungi. Fungi. THE THALLUS 5 ectoparasitic, less often in parasitic, forms it may cling fast to the sub- strate by holdfasts known as appressoria (Fig. 215, 2). Usually it is able to absorb food over its whole surface; yet for the better fulfilment of this function, special hyphae or hyphal branches are developed in sapro- phytic forms as rhizoids (Fig. 55, 1) and in parasitic forms, haustoria (Fig. 120). Occasionally these structures function as holdfasts as well as food absorbers. It is still an open question whether the haustorium is a normal organ or whether it i
RF2TDNK2D–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMRDX1K4–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Fig. 21. Endomyces fibuliger Lind- ner; formation of conidia; after Guilliermond. Fi^. 22. Dipodascus albidus Lagerh.; fusion of con- jugating cells and nuclei; after Dangeard. Wolkia decolorans, the only known species of the genus Wolkia, has a strong mycelium, growing luxuriantly at a temperature of about 26° C.; in the immature state the mycelium is light pink, later globular red bodies appear. These are the asci and are formed at the ends of single hyphae without preliminary fusion. At first they contain dense cytoplasm and a large va
RF2TDNKCE–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMRDE5AE–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 509 confluent, marginally fimbriate, the radiating fibers arachnoid, white, distinctly branched; pycnidia tuberculariform, scattered or confluent, black; conidia oblong, constricted, 18-20 x 5. /i; conidiophores short. This fungus was first described in 1826. It is common on rose leaves. The mycelium is in part subcuticular, in part deeper. The subcuticular part is visible through the cuticle, consisting of radiate strands each composed of several parallel hyphae. From this mycelium branches pene
RF2TDNK6K–soil microorganism under the microscope recycling nutrients in a compost on a regenerative agriculture farm in australia, showing amoeba, fungi, funga
RMRMTF54–. Annals of applied biology. Biology, Economic; Biochemistry. W. N. C. Bblgrave 187 Effects of the fungi on the tissues of the host. The action of the fungi on the tissue of the host has been examined. The stains found most effective in this examination were Delafield's Haematoxylin, and the double stain Picric-Aniline Blue (picric acid being added to saturation). It is found that the hyphae travel in the soft tissues of the bark, thence spreading laterally into the wood (cf. Fig. 5).. Fig. 5. In all the tissues gum makes its appearance, in the bark and medul- lary rays as droplets; in the woo
RMREF66J–. Comparative morphology of Fungi. Fungi. 542 COMPARATIVE MORPHOLOGY OF FUNGI ium becomes reticulate until it is almost merulioid, while the sterile surface may be strigose to tomentose (Fig. 361). As usual, the hyphae of the fructifications are binucleate; the basidia are united in a palisade and at their base may show the place of nuclear fusion by a slight swelling. They are entirely imbedded in a gel (Fig. 362, 1) and, as those of Platygloea, elevate their spores on long sterigmata to the surface. At germination, the basidiospores may be abjointed I 1 L^ SHk M f M * W^ ,11 % W..nF. Fig.
RMRD3K69–. Cyclopedia of farm crops. Farm produce; Agriculture. 346 FORESTS FORESTS. Nature of the disease fungi and their action. Fungi are a low class of plants, consisting of fine threads, called hyphce, many hyphae forming the mycelium. The mycelium grows in the dead or living parts, extracting certain food substances therefrom. After varying periods, fruiting bodies are formed, which develop spores. These fruiting bod- ies have various shapes, varying from microscopic structures to the large punks or toadstools so com- monly found on older trees. The spores are discharged into the air, and are dis
RMREERFK–. Comparative morphology of Fungi. Fungi. 268 COMPARATIVE MORPHOLOGY OF FUNGI To Septorisphaerella belong Mycosphaerella Hippocastani (Carlia Hippocastani), a leaf spot of Aesculus Hippocastanum, and M. sentina, a leaf spot of pear. As imperfect forms besides pycnia with multicellular conidia (Septoria aesculicola), Klebahn (1918) found in culture free falcate conidia similar to Septoria conidia which are cut off laterally on hyphae and also pycnia with very small bacilliform microconidia.. Fig. 178.—Mycosphaerella sentina. 1. Pycnial stage. Septoria pyricola. 2. Part of perithecial wall. 3. P
RMRH93AE–. Botany for agricultural students. Plants. ASCOMYCETES 363 Oospores and zygospor(;s tide the plant over unfavorable con- ditions and produce new plants when favorable conditions return. In combatting the disease-producing Phycomycetes, the control of zoospores, conidia, and oospores must be considered.. Fig. 314. — Conjugation in Bread Mold. «, b, c, and d are successive stages in conjugation. At a the short hyphae have just come together, wliile at d the zygospore is formed, e, zygospore developing a new hypha bearing a sporangium. X about 130. Ascomycetes (Sac Fungi and Lichens) General Des
RMRPY1GH–. Hawaiian Fungi. Fungi. go Bernice P. Bishop Museum—Bulletin hyphae, which terminate somewhat loosely and irregularly. The asci are borne in a single layer and are not in perithecia, and are not covered, each ascus resting in a space between the sterile cells which present a mesh-like appearance. (See fig. 21.) The walls of the hexagonal cell meshes are quite thick and are formed of strands of hyphae. Each ascus contains 8 ascospores. The ascospores are 3-celled, and with thick walls (fig. 21, c). The thallus of Hexagonella is dark brown. The asci are prominent due to the dark color of the sp
RMREEPDK–. Comparative morphology of Fungi. Fungi. Fig. 356.—Dacryomyces dcliquescens. Development of basidia. (X 1,330; after Juel, 1898.) which the nucleus migrates. The two nuclei remaining in the basidium degenerate (Gilbert, 1921). At germination, the basidiospore divides into four daughter cells, each of which cuts off on one or two short germ tubes small fascicles of 0 0. Fig. 357.—Dacryomyces deliquescens. 1. Germination of basidiospores in water. 2. Germination in concentrated nutrient solution. 3. Portion of conidial hyphae. 4. Diagrammatic section of an oidial fructification. Dacryomyces ovi
RMRDTNNT–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. I20 DISCOMYCETES [CH. gave rise to ascogenous hyphae; an investigation sufficiently searching to determine this point might have led to the recognition of nuclear fusions in normal material. The ascospore has a single large nucleus, and gives rise to multi- nucleate germ-tubes in which Ramlow's figures show numerous nuclei in pairs (fig. 16). In Ascophanns ochraceus Dangeard describes eight to fifteen oogonia as taking part in the formation of a single fruit. These, it would appear, are all borne upon the same hypha; they may arise from a
RMREER60–. Comparative morphology of Fungi. Fungi. 446 COMPARATIVE MORPHOLOGY OF FUNGI timber decay, Brefeld (1889) reported that the hyphae first form a felt with groups of basidia which gradually become more numerous and form compact hymenia. Later, portions of the hymenophore grow rapidly, separating the hymenium into circular discrete areas. The growing edges remain sterile, although the hymenium continues to form on the walls of the developing tubes. On the other hand, Burt (1917) states that he has never found basidia in Porta until the pores are fully formed. The difference in many cases is depe
RMREF7M0–. Comparative morphology of Fungi. Fungi. PHACIDIALES 309 denser content and deeper staining properties. They grow to fertile hyphae, which bore under the plectenchyma in a group and reach a length of six cells (Fig. 207, A). Meanwhile the knot thickens the cell walls on its outer surface, and becomes a flat, brown, sclerotic mass. The fertile hyphae stow themselves on the hard basal peridial layer, bend irregularly and fork. irffi. Fig. 205.— Cryptomyces Pteridis. Section of young hypertrophied fronds of the brake covered with acervuli. ( X 330; after Killian, 1918.) The further development p
![. Biology and man. Biology; Human beings. PoreUa Order 3 Rhodophyceae ("rose seaweed"). The red algae; mostly marine; attached to rocks; reddish to purple. Examples, Nemalion, or threadweed, Polysiphonia, Batrachospermum. CLASS 3 FUNGI ("mushrooms"). Thallophytes without chlorophyl. Order 1 Phycomycetes ("alga fungus"). Algalike fungi; no divi- sions in hyphae. Examples, water molds (often parasitic on fishes), Phytophthora (the cause of potato rot), downy mildew, black or bread mold (see illustration, p. 375). Order 2 Ascomycetes ("bladder fungus"). Fun Stock Photo](https://c8.alamy.com/comp/RHJW40/biology-and-man-biology-human-beings-poreua-order-3-rhodophyceae-quotrose-seaweedquot-the-red-algae-mostly-marine-attached-to-rocks-reddish-to-purple-examples-nemalion-or-threadweed-polysiphonia-batrachospermum-class-3-fungi-quotmushroomsquot-thallophytes-without-chlorophyl-order-1-phycomycetes-quotalga-fungusquot-algalike-fungi-no-divi-sions-in-hyphae-examples-water-molds-often-parasitic-on-fishes-phytophthora-the-cause-of-potato-rot-downy-mildew-black-or-bread-mold-see-illustration-p-375-order-2-ascomycetes-quotbladder-fungusquot-fun-RHJW40.jpg ". Biology and man. Biology; Human beings. PoreUa Order 3 Rhodophyceae ("rose seaweed"). The red algae; mostly marine; attached to rocks; reddish to purple. Examples, Nemalion, or threadweed, Polysiphonia, Batrachospermum. CLASS 3 FUNGI ("mushrooms"). Thallophytes without chlorophyl. Order 1 Phycomycetes ("alga fungus"). Algalike fungi; no divi- sions in hyphae. Examples, water molds (often parasitic on fishes), Phytophthora (the cause of potato rot), downy mildew, black or bread mold (see illustration, p. 375). Order 2 Ascomycetes ("bladder fungus"). Fun Stock Photo")
RMRHJW40–. Biology and man. Biology; Human beings. PoreUa Order 3 Rhodophyceae ("rose seaweed"). The red algae; mostly marine; attached to rocks; reddish to purple. Examples, Nemalion, or threadweed, Polysiphonia, Batrachospermum. CLASS 3 FUNGI ("mushrooms"). Thallophytes without chlorophyl. Order 1 Phycomycetes ("alga fungus"). Algalike fungi; no divi- sions in hyphae. Examples, water molds (often parasitic on fishes), Phytophthora (the cause of potato rot), downy mildew, black or bread mold (see illustration, p. 375). Order 2 Ascomycetes ("bladder fungus"). Fun
RMREF63A–. Comparative morphology of Fungi. Fungi. UREDINALES 559 ribicola (Colley, 1918), C. Comptoniae, C. pyriforme (Adams, 1919), Uromyces Caladii (Christman, 1905; Fromme, 1914), Puccinia Caricis and P. Pruni-spinosae (Kursanov, 1922), the hyphae of the knot are arranged. Fig. 376.— Uromyces Poae. 1. Young aecidium. Fertile cells above and sterile degeneration cells below. 2. Immature aecidium with peridium, Per, and immature aeciospores, Sp. ( X 415; after Blackman and Fraser, 1906.) in a more or less palisade-like structure and are usually perpendicular to the plane of the epidermis, in a few sp
RMREE3MM–. Comparative morphology of Fungi. Fungi. 118 COMPARATIVE MORPHOLOGY OF FUNGI 1897; Lowenthal, 1903; Woycicki, 1904, 1907, 1927; Olive, 1907; Lakon, 1926; and Levisohn, 1927), and B. myxophilus on bacterial zoogloea on fallen pine needles (R. E. Fries, 1899). The mycelium of B. ranarum develops abundantly on the excrement of frogs in 2 to 3 days. It consists of ramose hyphae whose cells when young are uninucleate and sometimes, in age or poor nourishment, multi- nucleate. The hyphae are persistent in the excrement, but in artificial culture may break up into oidia, resembling the hyphal bodies
![. Comparative morphology of Fungi. Fungi. A URICULARIALES 551 discharged but collect in a shining white knob, supported by the "calyx." They germinate easily in nutrient solution (Fig. 367, 9 to 11). Besides, a large number of microconidia may be formed, each of which is sur- rounded by a thin gel. They do not germinate beyond a slight swelling. The hyphae from germinating basidiospores form coremia (Fig. 368, 2), basidial formation is limited to the top of the coremium, and fructifica- tions result similar to those found in Nature. In the Javan Hoehnelio- myces javanicus (Weese, 192 Stock Photo](https://c8.alamy.com/comp/REF64G/comparative-morphology-of-fungi-fungi-a-uriculariales-551-discharged-but-collect-in-a-shining-white-knob-supported-by-the-quotcalyxquot-they-germinate-easily-in-nutrient-solution-fig-367-9-to-11-besides-a-large-number-of-microconidia-may-be-formed-each-of-which-is-sur-rounded-by-a-thin-gel-they-do-not-germinate-beyond-a-slight-swelling-the-hyphae-from-germinating-basidiospores-form-coremia-fig-368-2-basidial-formation-is-limited-to-the-top-of-the-coremium-and-fructifica-tions-result-similar-to-those-found-in-nature-in-the-javan-hoehnelio-myces-javanicus-weese-192-REF64G.jpg ". Comparative morphology of Fungi. Fungi. A URICULARIALES 551 discharged but collect in a shining white knob, supported by the "calyx." They germinate easily in nutrient solution (Fig. 367, 9 to 11). Besides, a large number of microconidia may be formed, each of which is sur- rounded by a thin gel. They do not germinate beyond a slight swelling. The hyphae from germinating basidiospores form coremia (Fig. 368, 2), basidial formation is limited to the top of the coremium, and fructifica- tions result similar to those found in Nature. In the Javan Hoehnelio- myces javanicus (Weese, 192 Stock Photo")
RMREF64G–. Comparative morphology of Fungi. Fungi. A URICULARIALES 551 discharged but collect in a shining white knob, supported by the "calyx." They germinate easily in nutrient solution (Fig. 367, 9 to 11). Besides, a large number of microconidia may be formed, each of which is sur- rounded by a thin gel. They do not germinate beyond a slight swelling. The hyphae from germinating basidiospores form coremia (Fig. 368, 2), basidial formation is limited to the top of the coremium, and fructifica- tions result similar to those found in Nature. In the Javan Hoehnelio- myces javanicus (Weese, 192
RMRDEFMY–. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 148 MYCOLOGY (Fig. sO has a copious literature. Lafar cites forty workers of recent date, who have studied it. The physician finds it as an occupant of. Fig. so.—Aspergillus nidulans. A, Mycelium with conidiophores; B, branched conidiophore; C, spore chains at end of conidiophore; D, small conidiophores; E, young fruit showing development of covering; F, hyphae with swollen ends; G, hypha from interior of fruit-body; H, hyphae with young asci; J, developing perithe- cium. {See Die nalii
RMRE2FXF–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. APPENDIX HEMILBIA Berk, et Broome. ^cidia, if any, unknown. Uredospores borne singly on hyphae which protrude in fascicles through a stoma. Teleuto- spores formed later on pedicels in the centre of the same fascicles, one-celled, with apical germ-pore, germinating as in Uromyces. The character given for Hemileia, when only H. vastatrix was known, of having one side of the uredospore smooth, is now known to be not of universal application. Hemileia americana Mass. Hemileia americana Mass. in Gard. Chron. 1905, x
RMRDE524–. The fungi which cause plant disease . Plant diseases; Fungi. 596 THE FUNGI WHICH CAUSE PLANT DISEASE Conidia clavate 4. Gongromeriza. Chains breaking up witii difficulty Chains curved 5. Gyroceras. Chains straight or nearly so 6. Honniscium. Hyphae hyaline 7. MonUochaetes, p. 597. Thielaviopsis Went. ^^ (p. 595) Hyphffi creeping, subhyaline; conidiophores simple, septate; conidia of two kinds; macroconidia catenulate, ovate, fuscous; Fio. 399.—T. ethaceticus. After Wakker and Went.. Fio. 400.—Torula. After Saccardo. microconidia cylindric, hyaline, catenulate within the conidiophore. In part
RMRE1PX3–. Nature and development of plants. Botany. 268 DEVELOPMENT OF PHALLALES They differ chiefly from the puffballs in that the spore-bearing cavities are surrounded by tougher hyphae. Consequently, when the periderm of these Httle cup-shaped bodies opens, these tougher parts appear as minute eggs in a nest (Fig. 177, B). 100. Order f. Phallales or Stink Horns.âThese fungi first appear as egg-Hke structures on rather coarse strands of the mycelium which traverse decaying vegetation. These bodies consist of a white skin-Hke periderm which encloses a stipe and. ^ Tig. 178. A common form of the Phal
RMRDDBHM–. The fungi which cause plant disease . Plant diseases; Fungi. 214 THE FUNGI WHICH CAUSE PLANT DISEASE is not known but which is placed in this genus on account of the similarity of its conidial stage with that of the other species. U. virens (Cke.) Tak. Ascigerous stage unknown, sclerotia spher- ical, about 5 mm. in diameter; conidia spherical, at first smooth- walled, hyaline, at maturity echinulate and olive green, 4-6 M- The short thick walled fr ^^ hyphae of the interior of the sclerotium are closely in- ,,.„,-. -. • terwoven to a false tissue, liG. 153.—U. virens; a, spores germinated m
RMRH80XF–. Botany of the living plant. Botany; Plants. 394 BOTANY OF THE LIVING PLANT origin always a false tissue, or pseudo-parenchyma, made up from independent filaments, not a true parenchyma produced by segmenta- tion of cells with a common origin. Many Fungi form large solid masses of such pseudo-parenchyma, which are called sclerotia, and serve for storage during a resting period (Fig. 293). The hyphae are limited by a cell-wall, composed of substance differing in its reactions from ordinary cellulose : they may be septate or non-septate, and in the former case there may be considerable variety
RMRMTF44–. Annals of applied biology. Biology, Economic; Biochemistry. t! On Diseases of Plum Trees Lateral penetration of the hyphae takes place through the pits which abound in the tissues of the wood (cf. Fig. 7). This penetration is very slow, and often limited to the young wood, e.g. in a dead branch 8 ins. in diameter, from a Prince of Wales tree, hyphae could be found in the outermost § ins., and in the inner part of this zone only in the medullary rays. In the vessels themselves the hyphae were limited to the outermost inch. The cell walls are practically unaffected by these fungi, sections f
RMREE3J0–. Comparative morphology of Fungi. Fungi. Fig. 74.—Entomophthora Muscae. 1, 2. Development of conidiophore. 3. Catenu- late gemmae (azygospores?) within old conidiophore. (1, 2 X 720; 3 X 800; after Olive, 1906, Goldstein, 1923.) protoplasm so that the flies are surrounded by a ring of spores. In old, dried-up flies, the hypnospores arise in masses as thick-walled, multinu- cleate, intercalary swellings of the hyphae (Fig. 71, 3). Whether they should be regarded as gemmae or azygospores is still obscure (Goldstein, 1923).. Fig. 75.—Entomophthora Grylli. 1 to 3. Development of zygospore from hy
RMREF6BD–. Comparative morphology of Fungi. Fungi. Fig. 279.—Gloeocystidivm clavuligerum. Fig. 280.—Epithele Typhae. Section of Section of hymenium showing basidia and hymenium showing a peg of hyphae. gloeocystidia. (X 385; after Hoehnel and (X 255; after Hoehnel and Litschaucr, 1906.) Litschauer, 1906.) Coniophora cerebella develops very thick (often 0.5 mm.) crusts, at first fleshy and membranous, later dry and brittle. This species is as important a cause of dry rot of coniferous timber in the United States as Merulius lacrymans in Europe. Corticium centrijugum, C. Stevensii and C. radiosum (C. alu
RMRMRHEN–. Annali del Museo civico di storia naturale Giacomo Doria. Natural history. Figs. 32-35: 32 - larval excrements; 33 - midgut with fecal matter and spores of lower fungi; 34 - larval galleries and pupal chamber; 35 - egg. fully pigmented. There is only one generation per year in the temperate Polish climate. Adults move very slowly, while larvae move comparatively quickly. All stages were observed to feed on hyphae of ascomycete fungi that are abundant on walls of the galleries of the ants and their surrondings. The discovery of the sporangia of lower fungi in the larval mid gut (Fig. 33) rais
RMRDTNYW–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. 112 DISCOMYCETES [CH. Humaria granulata is a common red or orange coprophilous form. The archicarp develops as a side branch from an ordinary hypha. The apical cell of this branch increases in size and becomes spherical, forming the oogonium (fig. 6^) ; it contains large numbers of well-marked nuclei. When it is full grown the oogonial nuclei fuse in pairs (fig. 68 a), and the fusion nuclei pass into the ascogenous hyphae (fig. 68 b). There is no sign of either trichogyne or antheridium.. Fig. 68. Humaria granulata Quel.; a. fusion of nuc
RMREF5G1–. Comparative morphology of Fungi. Fungi. <^. L Fig. 405.—Volutella scopula. 1. Mature sporodochium. 2. Young sporodochium which has not started the production of conidia. 3. Conidia. A group of spores lie imbedded in a gel at the tips of the hyphae. 4. One of the large hyphae of the sporodo- chium and the conidiophores. (1 X 7; 2 X 30; 3, 4 X 780; after Boulanger, 1897.) new groups, for name and definition of which one should turn to the original. However much these forms may be justified in individual cases, one cannot avoid the impression that the Fungi Imperfecti are better off the less
RMREFBG1–. Comparative morphology and biology of the fungi, mycetozoa and bacteria. Fungi -- Morphology; Bacteria -- Morphology. FIG. 89. Lccauora subftisca. Median section through a young apothecium, swollen up in ammonia, somewhat diagrammatically represented ; hh hymenium, c excipulum from which spring the paraphyses represented by strokes run- ning vertically towards h, sh ascogenous hyphae giving rise to the asci, r rind, m medullary layer of the thallus which forms a rim round the excipulum. The round bodies are the algal cells contained in the thallus. Magn. 190 times. This is the case in a stil
RMRDTW98–. Botany for high schools and colleges. Botany. 66 BOTANY. cell-families; in both cases separate motile cells (zoospores) in a mother- cell arrange themselves in a definite manner, and gradually unite into a family resembling the parent plant (Fig. 49). By the breaking up of the wall of the mother-cell the new family is set free. (ft) In some fungi the cells composing the vegetative threads (hy- phse) unite loosely with one another into a mass. In some cases the union is so slight that the hyphae may be separated with the greatest ease, while iu others it approaches the density and firmness of
RMREF88E–. Comparative morphology of Fungi. Fungi. 214 COMPARATIVE MORPHOLOGY OF FUNGI the foot in Kusanoopsis, this second type spreads over the substrate in a sterile stromatic plectenchyma, which, in the forms on animals, as M. Duriaei maybe pulvinate, thestromatal hyphae being sclerotic and narrow lumened (Fig. 137, C); those on plants, as in M. Pritzelianum, form only a thin membrane of hyphae with unthickened walls. The cells on the surface of the stroma become brown and change to a dark, otherwise undifferentiated, rind. From this sterile basal stroma arises a tuft of numerous vertical processes
RMRDCY5K–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. 462 BASIDIOMYCETES. scales arranged regularly in concentric lines. The stools break out from living stems through cracks in the bark or from wounds, e.g. those made by wood-peckers. The fir-wood, normally white, assumes, when diseased, a yellow or honey-colour, more or less like the sporophore, while here and there, parts may become light brown. The hyphae grow in all direc- tions, but especially as white strands up
RMREE3J8–. Comparative morphology of Fungi. Fungi. Fig. 74.—Entomophthora Muscae. 1, 2. Development of conidiophore. 3. Catenu- late gemmae (azygospores?) within old conidiophore. (1, 2 X 720; 3 X 800; after Olive, 1906, Goldstein, 1923.) protoplasm so that the flies are surrounded by a ring of spores. In old, dried-up flies, the hypnospores arise in masses as thick-walled, multinu- cleate, intercalary swellings of the hyphae (Fig. 71, 3). Whether they should be regarded as gemmae or azygospores is still obscure (Goldstein, 1923).. Please note that these images are extracted from scanned page images th
RMRDE52M–. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 589 Hyphae verticillate; sterile hy- phaB present 13. Mucrosporium. Parasitic Conidia mucose-conglobate, allan- toid, often continuous 14. Allantospora. Conidia not mucose-conglobate Conidia ovate-cylindric or elon- gate, often catenulate 15. Ramularia, p. 590. Conidia obclavate-pyriform 16. PirictJaria, p. 591. Septocylindrium Bonardin (p. 588) Coiiidiophores very short, scarcely distinct from the conidia, or in parasitic species distinct but short and inflated or dentic- ulately sublobate at th
![. Biology and man. Biology; Human beings. Remdeer moss Cross section ol Uchen tballus Section oi thallua. PoreUa Order 3 Rhodophyceae ("rose seaweed"). The red algae; mostly marine; attached to rocks; reddish to purple. Examples, Nemalion, or threadweed, Polysiphonia, Batrachospermum. CLASS 3 FUNGI ("mushrooms"). Thallophytes without chlorophyl. Order 1 Phycomycetes ("alga fungus"). Algalike fungi; no divi- sions in hyphae. Examples, water molds (often parasitic on fishes), Phytophthora (the cause of potato rot), downy mildew, black or bread mold (see illustration Stock Photo](https://c8.alamy.com/comp/RHJW4G/biology-and-man-biology-human-beings-remdeer-moss-cross-section-ol-uchen-tballus-section-oi-thallua-poreua-order-3-rhodophyceae-quotrose-seaweedquot-the-red-algae-mostly-marine-attached-to-rocks-reddish-to-purple-examples-nemalion-or-threadweed-polysiphonia-batrachospermum-class-3-fungi-quotmushroomsquot-thallophytes-without-chlorophyl-order-1-phycomycetes-quotalga-fungusquot-algalike-fungi-no-divi-sions-in-hyphae-examples-water-molds-often-parasitic-on-fishes-phytophthora-the-cause-of-potato-rot-downy-mildew-black-or-bread-mold-see-illustration-RHJW4G.jpg ". Biology and man. Biology; Human beings. Remdeer moss Cross section ol Uchen tballus Section oi thallua. PoreUa Order 3 Rhodophyceae ("rose seaweed"). The red algae; mostly marine; attached to rocks; reddish to purple. Examples, Nemalion, or threadweed, Polysiphonia, Batrachospermum. CLASS 3 FUNGI ("mushrooms"). Thallophytes without chlorophyl. Order 1 Phycomycetes ("alga fungus"). Algalike fungi; no divi- sions in hyphae. Examples, water molds (often parasitic on fishes), Phytophthora (the cause of potato rot), downy mildew, black or bread mold (see illustration Stock Photo")
RMRHJW4G–. Biology and man. Biology; Human beings. Remdeer moss Cross section ol Uchen tballus Section oi thallua. PoreUa Order 3 Rhodophyceae ("rose seaweed"). The red algae; mostly marine; attached to rocks; reddish to purple. Examples, Nemalion, or threadweed, Polysiphonia, Batrachospermum. CLASS 3 FUNGI ("mushrooms"). Thallophytes without chlorophyl. Order 1 Phycomycetes ("alga fungus"). Algalike fungi; no divi- sions in hyphae. Examples, water molds (often parasitic on fishes), Phytophthora (the cause of potato rot), downy mildew, black or bread mold (see illustration
![. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. f" ^i FIG. 89. Lecauora subfiitca. Median section through a young apothecium, swollen up in ammonia, somewhat diagranunatically represented; h h hymenium, e excipulum from which spring the paraphyses represented by strokes run, ning vertically towards h. sh ascogenous hyphae givmg rise to the asci, r lind, 9n medullary layer of the thallus which forms a rim round the excipulum. The round bodies are the algal cells contained m the thallus. Magn. 190 tunes. This is Stock Photo](https://c8.alamy.com/comp/RDCT1H/comparative-morphology-and-biology-of-the-fungi-mycetozoa-and-bacteria-plant-morphology-fungi-myxomycetes-bacteriology-fquot-i-fig-89-lecauora-subfiitca-median-section-through-a-young-apothecium-swollen-up-in-ammonia-somewhat-diagranunatically-represented-h-h-hymenium-e-excipulum-from-which-spring-the-paraphyses-represented-by-strokes-run-ning-vertically-towards-h-sh-ascogenous-hyphae-givmg-rise-to-the-asci-r-lind-9n-medullary-layer-of-the-thallus-which-forms-a-rim-round-the-excipulum-the-round-bodies-are-the-algal-cells-contained-m-the-thallus-magn-190-tunes-this-is-RDCT1H.jpg ". Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. f" ^i FIG. 89. Lecauora subfiitca. Median section through a young apothecium, swollen up in ammonia, somewhat diagranunatically represented; h h hymenium, e excipulum from which spring the paraphyses represented by strokes run, ning vertically towards h. sh ascogenous hyphae givmg rise to the asci, r lind, 9n medullary layer of the thallus which forms a rim round the excipulum. The round bodies are the algal cells contained m the thallus. Magn. 190 tunes. This is Stock Photo")
RMRDCT1H–. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. f" ^i FIG. 89. Lecauora subfiitca. Median section through a young apothecium, swollen up in ammonia, somewhat diagranunatically represented; h h hymenium, e excipulum from which spring the paraphyses represented by strokes run, ning vertically towards h. sh ascogenous hyphae givmg rise to the asci, r lind, 9n medullary layer of the thallus which forms a rim round the excipulum. The round bodies are the algal cells contained m the thallus. Magn. 190 tunes. This is
RMREFA70–. Comparative morphology of Fungi. Fungi. 6 COMPARATIVE MORPHOLOGY OF FUNGI Hum. In the higher forms, a dark, thick, irregularly intertwined rind and a loose, white core are differentiated from parallel hyphae. They serve, as will be shown in the Basidiomycetes, chiefly for transport of food.. Fig. 3.—Armillaria mellea. Longitudinal section of tip of rhizomorph. a, loose hyphae; b, gelatinous, loosely interwoven hyphal layer; c, d, core layers; e, central cavity; /, apical meristem. ( X 300; after Hartig.) Occasionally the conducting function becomes less evident and they attain a more sclerot
RMRDX1N0–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. 58 PLECTOMYCETES [CH. Only two species of Eremascus are known. E. albtis was discovered by Eidam in 1881, in a bottle of malt extract. The contents had gone bad and their surface was covered with a growth of various fungi, amongst which was the new genus. It pro- duced a fine, snowy white, septate mycelium from which pairs of fer- tile hyphae grew out, curled round one another and fused at their tips (fig. 18). The fused portion was cut off from the fertile hypha below, and eventually produced eight spores. Unfortunately Eidam's species w
RMRDDWW6–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fio. 14. Fig. 13.—Tracheid of Pinus sytvestris destroyed by Travutes pini. The primary cell-WHll is completely dissolved from below upwards to a^ a; 6, secondary and tertiary layers of the walls consisting in the under portion of cellulose only, in which gi'anules of chalk are recognizable ; c, fungus-hyphae boring through the walls, leaving holes d and e. (After R. Hartig.) Fic. 14.—Tracheid of Pinus destroyed by P
RMRDTNJM–. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. ^<#s^. Fig. 90. u. Helvetia crispa (Scop.) Fr.; b. and c. Morchella vulgaris Pers.; after Boudier. nuclear divisions, and finds two chromosomes in the vegetative and four in the fertile hyphae. Four again appear in the first and second (meiotic) divisions in the ascus, after the second fusion has taken place, and two are recorded in the telophase of the third division, and in the mitosis in the spore. The ripe spore normally contains eight nuclei. In both species, after an ascus has arisen from the penultimate cell of a hypha, the term
Search Results for Hyphae in fungi Stock Photos and Images (1,662)
Page 14 of 17