Abstract
Summary An Antarctic endolithic Vibrio sp. has been characterized by sequence analysis of 5S rRNA extracted directly from sandstone rock in the Ross Desert of Southern Victoria Land. The bedrock geology of Linnaeus Terrace in the Dry Valley region of Antarctica, where the rock samples were collected, includes sandstone as the most abundant rock type. The formations are hypothesized to be fluvial but of disputed marine versus fluvial origin. The 5S rRNA extracted from the porous sandstone rock which contained a cryptic endolothic community, was sequenced. Cluster analysis and evolutionary tree constructions determined that the sequence was phylogenetically related to those of the Vibrionaceae, specifically a Vibrio spp. of marine origin.
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