Effect of culture conditions on ergosterol as an indicator of biomass in the aquatic hyphomycetes
Article Abstract:
The ergosterol content of fungi can vary by a factor of 14 depending on the culture medium, oxygen availability, and other growth conditions. Therefore researchers should be cautious when using ergosterol content to estimate fungal biomass.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2001
User Contributions:
Comment about this article or add new information about this topic:
Ergosterol-to-biomass conversion factors for aquatic hyphomycetes
Article Abstract:
The detemination ofergosterol concentrations in the mycelium of aquatic hyphomycete species commonon decaying leaves in running waters is discussed. Ergosterol was extracted from single spore isolates of aquatic hyphomycetes on mineral salt solution, malt extract broth and leaf extract broth and tested for effects of fungal species or strain, medium composition and culture age by one- and two-way analyses of variance. Results indicate that general conversion factor can estimate fungal biomass associated with leaf litter in streams.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
Temperature and sporulation of aquatic hyphomycetes
Article Abstract:
Research was conducted to determine the effect of temperature on the sporulation of eight common aquatic hyphomycetes grown on yellow poplar leaves in stream-simulating microcosms. The hyphomycetes displayed differences in the number of conidia generated from a similar amount of leaf at the same temperature. Six species showed the same temperature responses for growth on malt extract agar while two species produced the same numbers of conidia at 20 and 25 degrees C. Results provide evidence that aquatic hyphomycetes afford similar amounts of resources to reproduction.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Effect of electron donor and solution chemistry on products of dissimilatory reduction of technetium by Shewanella putrefaciens
- Abstracts: Effect of introns and AT-rich sequences on expression of the bacterial hygromycin B resistance gene in the basidiomycete Schizophyllum commune
- Abstracts: Evaluation of in vivo activation of protein kinase A under non-dissociable conditions through the overexpression of wild-type and mutant regulatory subunits in Saccharomyces cerevisiae
- Abstracts: Accumulation of the angucycline antibiotic rabelomycin after disruption of an oxygenase gene in the jadomycin B biosynthetic gene cluster of Streptomyces venezuelae
- Abstracts: Development of antibiotic-overproducing strains by site-directed mutagenesis of the rpsL gene in Streptomyces lividans