1887

Abstract

A novel Gram-stain-negative, chemolithoautotrophic sulfur oxidizer, strain JG42, was isolated from a hot spring microbial mat. As an electron donor for autotrophic growth, strain JG42 utilized sulfide, thiosulfate, tetrathionate and elemental sulfur. Cells of strain JG42 were oxidase-positive and catalase-negative. The G+C content of the genomic DNA was 65 mol%. The predominant cellular fatty acid was C. Phylogenetic analysis of the 16S rRNA gene indicated that strain JG42 belonged to the order , but sequence similarities to the known species were less than 94 %. On the basis of its properties, strain JG42 (=DSM 104776=NBRC 112696) is proposed as the type strain of a novel species of a new genus, gen. nov., sp. nov., which belongs to the family . A new family, fam. nov., is also proposed to accommodate the genus , transferred from the family .

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2017-09-01
2019-12-12
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