Description of Ectothiorhodospira salini sp. nov.

dc.contributor.author Ramana, Vemuluri Venkata
dc.contributor.author Sasikala, Chintalapati
dc.contributor.author Ramaprasad, Eedara Veera Venkata
dc.contributor.author Ramana, Chintalapati Venkata
dc.date.accessioned 2022-03-27T03:45:56Z
dc.date.available 2022-03-27T03:45:56Z
dc.date.issued 2010-01-01
dc.description.abstract Strain JA430 < sup > T < /sup > is a Gram-negative, vibrioid to spiral shaped phototrophic purple sulfur bacterium isolated from anoxic sediment of a saltern at Kanyakumari in a mineral salts medium that contained 2% NaCl (w/v). Strain JA430 < sup > T < /sup > grows optimally at 5-6% NaCl and tolerates up to 12% NaCl. Intracellular photosynthetic membranes were of the lamellar type. Bacteriochlorophyll a and carotenoids of the spirilloxanthin series are present as photosynthetic pigments. Major cellular fatty acids are C < inf > 18:1 < /inf > ω7c, C < inf > 16:0 < /inf > , C < inf > 19:0 < /inf > cycloω8c and C < inf > 16:1 < /inf > ω 7c/C < inf > 16:1 < /inf > ω 6c. Strain JA430 < sup > T < /sup > exhibits photoorganoheterotrophy and chemoorganoheterotrophy and requires para-aminobenzoic acid, pantothenate and pyridoxal phosphate for growth. Phylogenetic analysis on the basis of 16S rRNA gene sequence analysis showed that strain JA430 < sup > T < /sup > forms monophyletic group in the genus Ectothiorhodospira. The highest sequence similarity for strain JA430 < sup > T < /sup > was found with the type strains of Ectothiorhodospira variabilis DSM 21381 < sup > T < /sup > (96.1%) and Ectothiorhodospira haloalkaliphila ATCC 51935 < sup > T < /sup > (96.2%). Morphological and physiological characteristics discriminate strain JA430 < sup > T < /sup > from other species of the genus Ectothiorhodospira, for which we describe this as a novel species, Ectothiorhodospira salini sp. nov. (= NBRC 105915 < sup > T < /sup > = KCTC 5805 < sup > T < /sup > ).
dc.identifier.citation Journal of General and Applied Microbiology. v.56(4)
dc.identifier.issn 00221260
dc.identifier.uri 10.2323/jgam.56.313
dc.identifier.uri http://www.jstage.jst.go.jp/article/jgam/56/4/56_4_313/_article
dc.identifier.uri https://dspace.uohyd.ac.in/handle/1/5304
dc.subject 16Sr RNA gene based phylogeny
dc.subject Ectothiorhodospira
dc.subject Gammaproteobacterium
dc.subject Purple sulfur bacterium
dc.title Description of Ectothiorhodospira salini sp. nov.
dc.type Journal. Article
dspace.entity.type
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