Anoxynatronum buryatiense sp. nov., an anaerobic alkaliphilic bacterium from a low mineralization soda lake in Buryatia, Russia
Ryzhmanova, Yana and Oshurkova, Victoria and Troshina, Olga and Abashina, Tatyana and Ariskina, Elena and Avtukh, Alexander and Shcherbakova, Viktoria,, 67, 4704-4709 (2017),
doi = https://doi.org/10.1099/ijsem.0.002365,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= An anaerobic alkaliphilic, proteolytic bacterium, strain Su22T, was isolated from the bottom sediment of the alkaline low mineralization lake Sulphatnoe (Selenginsky district, Buryatia, Russia). A comparative analysis of the 16S rRNA gene sequence revealed that this bacterium was closely related to Anoxynatronum sibiricum Z-7981T with a similarity of 98.1 %. Strain Su22T differed from A. sibiricum Z-7981T in its inability to use carbohydrates, peptone and amino acids as carbon sources. Strain Su22T grew over a temperature range of 20–40 °C with an optimum at 30 °C and within the pH range 7.4–11.0 with an optimum at pH 9.6. Sodium cations stimulated the growth of the strain considerably with an optimal concentration at 0.76–1.09 M. The whole-cell fatty acid profile included C16 : 1ω7c, C16 : 0 and C16 : 0 ALDE. The G+C content was 46.1 mol%. Based on the DNA–DNA hybridization level (53.2 %) and phenotypical differences between strains Su22T and Z-7981T, the new isolate is thus considered to represent a novel species, for which the name Anoxynatronum buryatiense sp. nov. is proposed. The type strain is Su22Т (=VKM B-2510T=CECT 8731T).,
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