産膜酵母菌に関する研究(第14報) : Hansenula属(8)

概要

論文の詳細を見る
Taxonomic studies on fresh cultures of sporogenous pellicle forming yeasts isolated from various kinds of samples sent mainly from abroad, have been carried out. Among these, this paper deals with 4 cultures isolated from soils (Germany and Portugal) and exudate of a tree stump (of Carpinus sp., Japan). Based on our microbiological studies on these isolates, they were identified as Hansenula californica (LODDER) WICKERHAM. In the above identification, however, the authors attached more importance to several properties (viz., conjugation of two cells, weak fermentation, inability of pellicle formation in ethanol medium) pointed out by LODDER, the original author, as well as vitamin requirements for the growth and the feature of slant cultures (wet, smooth shiny, flat) than to the assimilation of sugars, based on the fact that above mentioned properties are very stable and seem to be quite reasonable from the view point of phylogenetic consideration on Genus Hansenula proposed by WICKERHAM, and further, so far as the cultures of H.californica are concerned, the assimilation of maltose is variable from culture to culture, as WICKERHAM also pointed out with his cultures of this species.
1961-11-15