Abstract
The yeast flora of 126 soil samples from the Ross Dependency of Antarctica was examined and compared with that of eight samples from East Greenland. Fifty-two Antarctic samples contained yeasts, in numbers ranging from 5 to over 100,000/g; species isolated belonged to the generaDebaryomyces, Cryptococcus, Candida, Trichosporon andRhodotorula. Nearly all isolates ofCandida were obligate psychrophils; they belonged toCandida scottii, C. nivalis, C. gelida andC. frigida. Duplicate samples, taken at the same site within a few yards of one another, contained the same size and kind of yeast populations. Although not all samples which contained plants (algae, lichens or mosses) contained yeasts, almost all samples which contained yeasts contained plants. There was no correlation between yeast population and the pH of the sample, nor between yeast populations and the presence of vertebrate animals.
The samples from East Greenland, which were from an area sufficiently warm and moist to support growth of higher plants, all contained yeasts, in numbers from 200 to 56,000/g. Species isolated were similar to those from Antarctic material.
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di Menna, M.E. Yeasts in Antarctic soils. Antonie van Leeuwenhoek 32, 29–38 (1966). https://doi.org/10.1007/BF02097443
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DOI: https://doi.org/10.1007/BF02097443