during 2009–10, cheese samples were collected from shops and cheese factories in fars and khuzestan provinces. isolates were recovered from cheese using malt extract agar (mea) and potato dextrose agar (pda). teleomorphic characteristics such as morphology of ascocarps, asci, ascospores and anamorphic characteristics such as conidiophores, phialides, conidia and chlamydospores were investigated...

The traditional classification of Gymnopilus (Agaricales) recognizes two primary groups, Annulati and Gymnopilus, based on the presence or absence of a membranous partial veil. While our analyses of DNA sequence data from the nuclear ribosomal ITS1-5.8S-ITS2 (ITS) gene supports the monophyly of the genus, these traditional subgroups were not recovered. Five well-supported clades within the genu...

Biotransformation of p-coumaric acid by Paecilomyces variotii resulted in the accumulation of a metabolite which was identified as p-hydroxybenzoic acid. We studied the possibility of enhancing this metabolite by various parameters such as varying the concentration of substrate, addition of different nitrogen sources and carbon sources at varying concentration and use of different agricultural ...

Byssochlamys nivea is a thermal resistant filamentous fungi and potential micotoxin producer. Recent studies have verified the presence of ascospores of such microorganism in samples of pineapple nectars and juices. Although the majority of filamentous fungi have limited heat resistance and are easily destroyed by heat, Byssochlamys nivea ascospores have shown high thermal resistance. The aim o...

R. L. Bentzen (correspondence), Dept. of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK 99775 7220, USA. E-mail: [email protected]. A. N. Powell, Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK 99775 7000, USA and U. S. Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, University of Alaska Fairbanks, Fairbanks, AK 99775-7020, USA....

Oxalic acid undergoes enzymic transformation along diverse channels in cell-free preparations from micro-organisms and plants. In Collyvia veltepes oxalate undergoes a simple decarboxylation (Shimazono, 1955; Shimazono & Hayaishi, 1957), whereas in other micro-organisms the decarboxylation is preceded by the formation of the CoA derivative of oxalate (Jakoby, Ohmura & Hayaishi, 1956; Kimura, Ka...