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Article Abstract
A novel acidophilic, aerobic bacterium strain, MYW30-H2, was isolated from a heap of polymetallic mine. Cells of strain MYW30-H2 were Gram-stain-positive, endospore-forming, motile, and rod-shaped. Strain MYW30-H2 grew at a temperature range of 30-45 °C (optimum 40 °C) and a pH range of 3.5-6.0 (optimum 4.0) in the presence of 0-0.5% (/) NaCl. Strain MYW30-H2 could grow heterotrophically on yeast extract and glucose, and grow mixotrophically using ferrous iron as an electron donor with yeast extract. Menaquinone-7 (MK-7) was the sole respiratory quinone of the strain. Iso-C and anteiso-C were the major cellular fatty acids. The 16S rRNA gene sequence analysis showed that MYW30-H2 was phylogenetically affiliated with the family , and the sequence similarity with other genera species was below 91.51%. The average amino acid identity value of the strain with its phylogenetically related species was 52.3-62.1%, which fell into the genus boundary range. The DNA G+C content of the strain was 44.2%. Based on physiological and phylogenetic analyses, strain MYW30-H2 represents a novel species of a new genus of the family , for which the name gen. nov., sp. nov. is proposed. The type strain is MYW30-H2 (=CGMCC 1.17422 = KCTC 43278).
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11123200 | PMC |
| http://dx.doi.org/10.3390/microorganisms12050853 | DOI Listing |
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