1887

Abstract

A brown, moderately halophilic, photoautotrophic bacterium designated strain JA363 was purified from a photoheterotrophic enrichment obtained from sediment from Chilika lagoon, Odisha, India. Cells of the isolate were coccoid, motile by means of single polar flagellum and Gram-stain-negative. Strain JA363 had an obligate requirement for NaCl and could tolerate up to 7 % (w/v) NaCl. Strain JA363 had complex growth factor requirements. Internal photosynthetic membranes were present as vesicles. Strain JA363 contained bacteriochlorophyll and spirilloxanthin series carotenoids with rhodopin as a major (>85 %) component. Cω7/Cω6, Cω7 and C were the major fatty acids and phosphatidylglycerol and phosphatidylethanolamine were the major polar lipids. Q8 was the predominant quinone system of strain JA363. The DNA G+C content was 64 mol%. The highest 16S rRNA gene sequence similarity of strain JA363 was found with the type strains of (98.7 %), (98.2 %), (97.4 %) and (96.3 %). However, the phylogenetic trees generated firmly placed strain JA363 in the genus , which was further supported by phenotypic and chemotaxonomic evidence. Consequently, strain JA363 is described as representing a novel species of the genus as sp. nov. The type strain is JA363 ( = KCTC 5701 = NBRC 104959).

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2015-11-01
2019-10-20
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