摘要:

ABSTRACTA black yeast-like fungus was found to be commonly associated with provisions, larval gut contents and frass of alfalfa leafcutter bees (Megachile rotundata). The formation of dark colonies composed of hyphae developing chains of blastoconidia and cylindrical to barrel-shaped arthroconidia suggested an affinity toTrichosporonoidesorMoniliella.Although lacking the synchronously produced blastoconidial state demonstrated by the type speciesTrichosporonoides oedocephalis, the leafcutter bee fungus has been namedT. megachiliensisbecause of its morphological and physiological similarities withT. madida, T. nigrescensandT. spathulata.These species also lack the synchronously produced blastoconidia and are redescribed here. The recently describedT. australiensewas found to differ substantially from existing species in both morphology and physiology and is considered to be synonymous withBrettanomyces anomalus(anamorph ofDekkera anomala). A key to the species ofTrichosporonoidesandMoniliellais provided.

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026177

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

摘要:

ABSTRACTIsolated hyphal walls of the OomyceteLagenidium giganteumwere studied by cytochemical, biochemical, and x-ray diffraction analyses. The principal wall component was (β-glucan, accounting for 77% of wall dry weight, the major portion of which is composed of (1→3)- and (1→6)-linked glucosyl residues. The qualitative presence of cellulose (β-1→4 glucan) was demonstrated cytochemically and by x-ray diffraction analysis. Cellulose accounts for 9.1% of total wall dry weight. Hyphal walls also contain mannose, protein, ash (inorganic), and lipid components, accounting for 4.0, 5.8, 1.4, and 2.5 percent of wall dry weight, respectively. Trace quantities (<1%) of glucosamine were detected in wall hydroly-sates, but there is no cytochemical evidence for the presence of chitin in hyphal walls. In general, the hyphal wall composition ofL. giganteumis similar to that observed in most other Oomycetes.

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026178

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026179

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026180

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026181

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026182

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026183

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026184

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026185

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor

ISSN:0027-5514    

DOI:10.1080/00275514.1992.12026186

出版商:Taylor&Francis    

年代:1992

数据来源: Taylor