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Abstract

A novel Gram-stain-positive, motile, aerobic, non-spore-forming and slender rod-shaped actinobacterium, designated strain CTD02-10-2, was isolated from deep sea water of the Indian Ocean. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain CTD02-10-2 was grouped into a separated branch with JCM 14730 (98.4 % nucleotide sequence identity). The respiratory quinones were menaquinones with 11, 12, 13 and 14 isoprene units and anteiso-C, iso-C, anteiso-C A and anteiso-C were the major fatty acids. The major polar lipids were phosphatidylglycerol, diphosphatidylglycerol and three unknown glycolipids. The genome of strain CTD02-10-2 was 2.59 Mb, with a DNA G+C content of 69.6 mol% and contained genes involved in the biosynthesis of alkylresorcinol, ansamycin, and carotenoids. DNA–DNA hybridization and average nucleotide identity values for whole-genome sequence comparisons between strain CTD02-10-2 and JCM 14730 were clearly below the thresholds used for the delineation of a new species. Based on its morphological and chemotaxonomic characteristics, as well as genotypic data, strain CTD02-10-2 was classified as a novel species of the genus , for which the name sp. nov. is proposed. The type strain is CTD02-10-2 (=JCM 33842=MCCC 1A16619).

Funding
This study was supported by the:
  • Gaiyun Zhang , Scientific Research Foundation of the Third Institute of Oceanography, MNR , (Award No. 2019011)
  • Gaiyun Zhang , China Ocean Mineral Resources R&D Association , (Award DY135-B2-01)
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/content/journal/ijsem/10.1099/ijsem.0.004564
2020-11-13
2021-02-26
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