AI Article Synopsis
- A new bacterium named TRM S81-3 was discovered in the soil of cotton fields in Xinjiang, China, and is classified under the genus Streptomyces.
- Genetic analysis shows it is closely related to Streptomyces viridiviolaceus with a 98.9% similarity in the 16S rRNA gene, but they have a lower average nucleotide identity of 91.6%.
- The bacterium has unique cell-wall components, specific fatty acids, and a high G + C content of 72.1%, leading researchers to propose it as a new species named Streptomyces grisecoloratus, with TRM S81-3 being its type strain.
Article Abstract
A novel bacterium of the genus Streptomyces, designated TRM S81-3, was isolated from soil in cotton fields of Xinjiang, China. Comparative 16S rRNA gene sequence analysis indicated that strain TRM S81-3 is most closely related to Streptomyces viridiviolaceus NBRC 13359 (98.9% sequence similarity); however, the average nucleotide identity (ANI) between strains TRM S81-3 and S. viridiviolaceus NBRC 13359 is relatively low (91.6%). Strain TRM S81-3 possesses LL-diaminopimelic acid as the diagnostic cell-wall diamino acid, MK-9(H), MK-9(H), and MK-9(H) as the major menaquinones, and polar lipids including diphosphatidylglycerol (DPG), phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylmethyl ethanolamine (PME), phosphotidylinositolone (PI), phospholipid of unknown structure containing glucosamine (NPG), and two unidentified phospholipids (PLs).The major fatty acids are iso-C, anteiso-C, anteiso-C ω9c, anteiso-C, iso-C, and C. The genomic DNA G + C content is 72.1%. Based on the evidence from this polyphasic study, strain TRM S81-3 represents a novel species of Streptomyces, for which the name Streptomyces grisecoloratus is proposed. The type strain is TRM S81-3 (= CCTCC AA 2020002 = LMG 31942).
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| http://dx.doi.org/10.1007/s00203-022-02818-9 | DOI Listing |
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