- Volume 77, Issue 1, 1973

SUMMARY: A new species of yeast, Sterigmatomyces acheniorum, is described. The strains, isolated from fresh strawberries, differed from other species of Sterigmatomyces in the test substrates they utilized. The strains grew slowly on certain organic substrates on three of which they formed mainly small colonies with a minority of large ones. When subcultured on the same substrates, large colonies gave rise to further large colonies, and small colonies produced mainly small colonies with a minority of large ones.

SUMMARY: A punched-card system of identification by computer is described, whereby matching at over 85% with the description of a recognized Saccharomyces species constitutes identification. The system is based on a set of 39 invariable descriptions of species, so defined that no species is related at higher than 85% matching coefficient to any other species.

SUMMARY: Ninety-three coryneform bacteria were tested with various acids and bases and on the basis of these tests, five of the strains were identified as Brevibacterium linens. This identification correlated with that made by other methods, thus confirming the suggestion of Grecz & Dack (1961) that B. linens could be identified by certain colour reactions. Further studies indicated that these reactions are probably associated with the presence of a specific carotenoid-like substance located in the bacterial membrane.