1887

Abstract

A rod-shaped, marine, phototrophic, purple sulfur bacterium containing gas vesicles was isolated from a marine solar saltern at Kakinada, India. Cells of strain JA134 are Gram-negative, non-motile rods, with vesicular intracytoplasmic membranes, and the strain has an absolute requirement for NaCl for growth. Bacteriochlorophyll and the carotenoid okenone are present as photosynthetic pigments. Phylogenetic analysis on the basis of 16S rRNA gene sequences showed that strain JA134 clusters with members of the genus , but is distinctly separated from the species reported so far. The morphological and physiological differences of strain JA134 from other species support the description of strain JA134 (=ATCC BAA-1363 =DSM 18859 =JCM 14151) as the type strain of a novel species, sp. nov.

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2007-09-01
2020-01-23
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Electron photomicrograph of an ultrathin section of strain JA134 showing the vesicular nature of photosynthetic membranes extending throughout the cell. Bar, 400 nm.

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Whole-cell absorption spectrum of strain JA134 (a) and acetone spectrum of extracted pigments (b).

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