Nejvíce citovaný článek - PubMed ID 105976
Inhibition of photo-induced Trichoderma viride conidiation by inhibitors of RNA synthesis
The growth and conidiation of the aged Trichoderma viride culture grown in the dark, and after an induction by a light pulse, was examined in the presence of selected mono-, di(tri)saccharides, amino acids and alcohols as sole carbon sources. Hexoses and disaccharides, but not pentoses and amino acids, promoted proportionally both growth and conidiation induced by aging or light. All compounds but pentoses promoted the conidiation in aged cultures and photoconidiation in a close correlation. Ethanol, glycerol and ethylene glycol supported both growth and conidiation but these processes were not supported equally. Conidia formation with hexoses and amino acids as sole carbon sources seems to be a function of growth promotion, rather than of growth restriction (starvation, stress, aging). With glucose as sole carbon source the conidiation was not triggered by nutrient limitation, nor by the accumulation of waste metabolites. The aging-induced conidiation can be considered to be triggered by the genetic program of the microorganism rather than by its nutrient status.
- MeSH
- alkoholy MeSH
- aminokyseliny MeSH
- disacharidy MeSH
- kultivační média MeSH
- monosacharidy MeSH
- světlo * MeSH
- tma MeSH
- Trichoderma růst a vývoj fyziologie MeSH
- trisacharidy MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
- Názvy látek
- alkoholy MeSH
- aminokyseliny MeSH
- disacharidy MeSH
- kultivační média MeSH
- monosacharidy MeSH
- trisacharidy MeSH
Both natural and synthetic substances are conveniently used for studying metabolism, genetic aspects, morphogenesis of cell structures, life cycle and differentiation of fungi.
- MeSH
- antifungální látky farmakologie MeSH
- buněčná diferenciace MeSH
- houby účinky léků genetika metabolismus MeSH
- morfogeneze MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
- Názvy látek
- antifungální látky MeSH
A total of 26 morphological and colour mutants of Trichoderma viride were characterized. They were divided into three groups based on morphology, pigmentation, growth rates and intensity of conidiation. Complementation analysis of colour mutants and mutants with disturbances in conidiation showed that after anastomosis and protoplast fusion only heterokaryotes are formed while no nuclear migration and diploidization takes place.
