What's the difference between hyphae and mycelium?

Hyphae


Definition:

  • (n. pl.) The long, branching filaments of which the mycelium (and the greater part of the plant) of a fungus is formed. They are also found enveloping the gonidia of lichens, making up a large part of their structure.

Example Sentences:

  • (1) The fungicidal activity of six rabbit neutrophil cationic peptides (NP) against resting (dormant) spores, preincubated (swollen) spores, and hyphae of Aspergillus fumigatus and Rhizopus oryzae was examined.
  • (2) They are characterized in tissue by broad hyphae which are surrounded by eosinophilic material.
  • (3) Hyphae and yeast cells of C. albicans were found on direct microscopy.
  • (4) Fungal hyphae and, occasionally, the characteristic conidial morphology of Aspergillus fumigatus were seen in sections and direct smears from lesions in the respiratory and alimentary tracts.
  • (5) The ultrastructure of some aggregating microorganisms, including fungal hyphae and sheath-forming and stalked bacteria, was studied in detail, and several modes of aggregation were suggested.
  • (6) When examined microscopically with potassium hydroxide, the agents of these disorders resemble those of dermatophytosis, showing narrow, septate, branching hyphae.
  • (7) cpd-3 showed short aerial hyphae with dense formation of conidia.
  • (8) On post-mortem examination characteristic haematoxylin-staining, broad, aseptate fungal hyphae were found in the right eye, orbit, and lung.
  • (9) Investigations on 85Sr containing malt extract broth Aspergillus fumigatus cultures revealed that fungal hyphas did not contain the major proportion of radioactivity, but culture filtrates did, and suggested that a fungal metabolite may be responsible for radiostrontium binding.
  • (10) A phenotypically expressed incompatibility reaction occurs when unlike het alleles are present within the same somatic nucleus, and this parallels the heterokaryon incompatibility reaction that occurs when unlike alleles in different haploid nuclei are introduced into the same somatic hypha by mycelial fusion.
  • (11) A complete conversion of yeasts to hyphae was obtained by the appropriate change in the amino acid used as nitrogen source.
  • (12) In view of the facts that uric acid is a common end-product of human and animal metabolism, it is abundantly present in the avian faecal matter and is capable of inducing mucoid growth and capsule formation in dry growing non-encapsulated strains or in an otherwise rough looking hypha forming isolate, its role in studying the phylogenesis of C. neoformans and its pathogenicity seems to be an important proposition.
  • (13) A number of characteristic aspergillus hyphae were recognized in the resected cyst.
  • (14) Another approach to understanding morphogenesis is to study how the difference in the shape of buds and hyphae is generated.
  • (15) In P. expansum shrinkage occurred in all hyphae at rates of cooling of less than 15 degrees C min-1; at faster rates intracellular ice nucleation occurred.
  • (16) The adherence of candidal hyphae within the superficial cells was seen in the area of the fissure.
  • (17) From these studies, we conclude that neutrophils are capable of killing Candida hyphae selectively within human vascular endothelial cell monolayers and may have protective rather than detrimental effects on endothelial cell integrity.
  • (18) Entomophthoromycosis was diagnosed by finding wide eosinophilic sleeves intimately surrounding thin-walled hyphae.
  • (19) It was found that fragmenting hyphae are similar in structure to the vegetative hyphae of known actinomycetes.
  • (20) Scattered individual and small groups of septate hyphae and chlamydospores were found in histologic sections.

Mycelium


Definition:

  • (n.) The white threads or filamentous growth from which a mushroom or fungus is developed; the so-called mushroom spawn.

Example Sentences:

  • (1) It was shown that the levels of ATP and ADP in the mycelium depended on the carbon source: the maximum and minimum ATP concentrations were found on the glucose and acetate media respectively, the maximum and minimum ADP concentrations showed inverse dependence.
  • (2) In other slowly growing mycobacteria, M. tuberculosis, M. bovis, M. kansasii, M. scrofulaceum, M. gordonae, M. marinum and M. nonchromogenicum, such mycelium formation was not observed.
  • (3) Extraction of mycelium or walls of Micropolyspora faeni with cold or hot aqueous phenol yielded a lipopolysaccharide consisting of lipid A, phosphate, galactose, arabinose, glucose, glucosamine, and a dideoxy sugar.
  • (4) The mycelium of Trichoderma viride grown in the dark under submerged conditions and transferred to membrane filters sporulated only after photoinduction.
  • (5) To isolate single spores from adhesive ascospores and the mycelium, the suspension was sucked through a combination of sintered-glass plates with different pore sizes.
  • (6) The enzyme was obtained from the mycelium of Actinomyces lavendulae.
  • (7) The effect was observed for other organisms but notably L. trabea, which produced considerable enzyme from a small quantity of mycelium.
  • (8) It lost about 80 per cent of the initial activity at a concentration of KC1 equal to 1.0 M. The molecular mass of the enzyme from the mycelium of Act.
  • (9) The authors observed maximum simultaneous biosynthesis of antibiotic and pigment in the microphilic fungus with using 48-hour seed mycelium having the specific growth rate of 0.008-0.011 h-1 in an amount of 5-7 per cent (v).
  • (10) Depending upon growth temperature, Candida albicans can exhibit two different morphologies, a budding yeast or a mycelium.
  • (11) The other major soluble carbohydrate of the sporophore, trehalose, decreased throughout the growth of the sporophore; a parallel decrease was observed in the mycelium.
  • (12) The cytochrome composition of the culture was not affected by the age of the mycelium, the intensity of antimycin A production, or differences in the media.
  • (13) Wheat kernels with visible Fusarium-damage, naturally infected, have been examined with histochemical techniques to observe mycelium growth inside kernels and change in kernels cells.
  • (14) Ultrastructure of basidiospores and mycelium of Lenzites saepiaria.
  • (15) In nongrowing cells (ungerminated sporangiospores and stationary-phase mycelium), the profile was skewed toward lower densities with a sharp chitosome peak at d = 1.12-1.13.
  • (16) Metabolism of carbohydrates was studied in Penicillium chrysogenum 194 and in its inactive mutant growing on a defined medium, and also in the washed mycelium of these cultures.
  • (17) Our previous work indicated that MY1049 was able to grow and produce abundant mycelium in the renal calices of infected mice but that the strain was unable to invasively colonize the renal tissue.
  • (18) However, further development of the mycelium was inhibited.
  • (19) These changes were correlated to the decrease of the ratio of saturated to olefinic fatty acids in the mycelium, suggesting that alcohols and other polar lipophilic compounds can interfere with the biosynthesis and the function of the cytoplasmic membrane in Streptomyces.
  • (20) The mycelium contained up to 38% of a slightly branched, storage (1----3),(1----6)-beta-D-glucan with a MW of 20,000.

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