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Mycelium

About: Mycelium is a research topic. Over the lifetime, 8923 publications have been published within this topic receiving 170993 citations.


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Journal ArticleDOI
TL;DR: Non-volatile compounds released by both T. harzianum isolates growing on cellophane disks over malt agar significantly inhibited growth of Fusarium oxygsporum and Verticillium dahliae “in vitro”.

51 citations

Journal ArticleDOI
TL;DR: The dimorphology of the organism is not directly related to lipid composition, and fatty acids are predominantly short chain and less than 10% are unsaturated.
Abstract: Fatty acid and sterol content and composition were determined for the dimorphic mold, Mucor genevensis, grown under a variety of experimental conditions. Fatty acids account for 6 to 9% of the dry weight of aerobically grown mycelium, and 70 to 80% of these are unsaturated. The organism contains gamma-linolenic acid which is characteristic for Phycomycetes, and in sporangiospores this compound represents 40% of the total fatty acids. Of the sterols found in mycelium, 80% is ergosterol, and stigmasterol was positively identified as one of the minor components. In anaerobically grown yeastlike cells, sterol content is less than 10% of the level found in aerobically grown cells, and fatty acids amount to less than 2% of the dry weight. These fatty acids are predominantly short chain and less than 10% are unsaturated. Yeastlike cells obtained under aerobic conditions by growth in the presence of phenethyl alcohol have fatty acid and sterol compositions characteristic of aerobically grown mycelium. It is concluded that the dimorphology of the organism is not directly related to lipid composition.

51 citations

Journal ArticleDOI
TL;DR: Protease and phenolidase activities in mycelial extracts of Suillus variegatus, S. bovinus, Pisolithus tinctorius, Piloderma croceum, Paxillus involutus, Amanita muscaria and Fomes annosus was demonstrated.
Abstract: Protease and phenolidase activities in mycelial extracts of Suillus variegatus, S. bovinus, Pisolithus tinctorius, Piloderma croceum, Paxillus involutus, Amanita muscaria and Fomes annosus was demonstrated. Pectinase activity was not detected in culture filtrates and was very low or absent in all mycorrhizal fungi tested.

51 citations

Journal ArticleDOI
TL;DR: The vegetative thallus of Actinomyces consists of a mycelium composed of profusely branching hyphae, the terminal growing portions of which are densely filled with protoplasm.
Abstract: 1. The vegetative thallus of Actinomyces consists of a mycelium composed of profusely branching hyphae, the terminal growing portions of which are densely filled with protoplasm. Toward the center of the thallus the vacuoles increase in size and may be associated with the presence of metachromatic granules, the latter having nothing in common with bacterial endospores or "micrococci," for which they were mistaken by early observers. 2. The vegetative mycelium attains an extent incomparably greater than the branching figures recorded for bacteria of the acid-fast group, and the hyphae lack the uniformity in diameter generally characteristic of the Schizomycetes. 3. The aerial mycelium produced on suitable substrata by most species occurs usually in the form of a mat of discrete fructifications; but in other species these fructifications are frequently combined to form numerous and peculiar erect Isarioid sporodochia. 4. In any case each individual fructification represents a well characterized sporogenous ...

51 citations

Journal ArticleDOI
TL;DR: Development of a vesicular-arbuscular mycorrhizal (VAM) fungus in association with soybean was determined in a greenhouse soil mix by chitin assay, indicating that some hexosamine was stabalized from chemical degradation by other soil components.
Abstract: Development of a vesicular-arbuscular mycorrhizal (VAM) fungus in association with soybean was determined in a greenhouse soil mix by chitin assay. Samples were sieved to eliminate hexosamine-containing contaminants. This preparation reduced the interference caused by extraneous soil substances and permitted quantitative measurement of extraradical VAM fungal mycelium in the soil mix by colorimetric assay. Recovery of added chitin, used as an internal standard, was greater in the soil mix than in an inert medium indicating that some hexosamine was stabalized from chemical degradation by other soil components.

50 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20242
2023951
20221,628
2021187
2020287
2019295