Full Paper Description of Ectothiorhodospira salini sp. nov

Members of the family Ectothiorhodospiraceae form a distinct lineage from Chromatiaceae on the basis of 16S rRNA gene sequence analysis (Imhoff and Süling, 1996). Among the 13 genera recognized in the family Ectothiorhodospiraceae, only 4 genera (Ectothiorhodosinus, Ectothiorhodospira, Halorhodospira and Thiorhodospira) are represented by members of true phototrophic species (http://www.bacterio.cict.fr/ classifgenerafamilies.html#Ectothiorhodospiraceae). All the phototrophic members of the family Ectothiorhodospiraceae accumulate sulfur granules outside the cell and thus are phenotypically distinct from the members of the Chromatiaceae (Imhoff, 2005). Members of the genus Halorhodospira (Halorhodospira halophila, Halorhodospira halochloris and Halorhodospira abdelmalekii) are represented by most halophilic phototrophic species, while the genera Ectothiorhodosinus (Ectothiorhodosinus mongolicus; Gorlenko et al., 2004) and Thiorhodospira (Thiorhodospira sibirica; Bryantseva et al., 1999) are represented by single J. Gen. Appl. Microbiol., 56, 313‒319 (2010)