Systematics of streptomycetes from Antarctic soil

TL;DRAbstract

Twenty-four soil samples were collected from the Vestfold Hills and Mirror Peninsula in the Antarctic. Fifty-two hyphal actinomycetes were isolated from six of the 24 soils, using micromanipulation. Five of the six actinomycete bearing soils were from sites associated with moss or lichen but no other correlation between the presence of viable actinomycetes and soils characteristics was determined. Fatty acid and isoprenoid quinone profiles indicated that each of the 52 isolates could be accommodated within the genus Streptomyces. Phenotypic characters, fatty acid profiles, and 16S-23Sr RNA intrageneric spacer patterns were compared among all isolates. As a result of these comparisons the 52 isolates were placed into five groups, each group being comprised of strains of a single species. Representative strains were chosen from each of the five groups for further study. Partial 16S rRNA sequence comparison and DNA:DNA hybridization studies indicated that each of the five representative s

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