[Thermotolerance of the Candida. Relationships with ecology, pathology and taxonomy (author's transl)]

An investigation on the maximum temperature of growth is reported on 477 strains of Candida, 23 species and 1 variety, including species actually not identied as Candida, but well known under that generic name in medical and veterinary mycology. C. pseudotropicalis is the most thermotolerante species (49 degrees), C. albicans coming only in second position (42 degrees -48 degrees); the less thermotolerante species is C. humicola (29 degrees), but the less thermotolerante strain is a C. sake (26 degrees -32 degrees). The relationships between the maximum temperature of growth and the ecology, the pathology and the taxonomy are discuted. In the group C. krusei a linkage between the maximum temperature and the utilisation of a sugar has been established, auguring a more close relation between the thermic characteristic and the enzymologic equipment of a yeast.