1887

Abstract

A Gram-stain-positive, aerobic, non-pigmented and non-motile actinobacterium, designated strain SCSIO 67246, was isolated from a stony coral sample collected from the Sanya sea area, Hainan province, China. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain SCSIO 67246 shared the highest similarities with MCCC 1A10561 (96.5 %) and KCTC 39565 (96.1%). The novel strain grew at 15–37 °C, at pH 5.0–10.0 and in the presence of 0–10 % (w/v) NaCl. The genome length of strain SCSIO 67246 was 3.52 Mbp with a DNA G+C content of 72.0 mol% and 3397 protein-coding genes. The novel strain showed an average nucleotide identity value of 76.5 % and a digital DNA–DNA hybridization value of 20.1 % with MCCC 1A10561. Strain SCSIO 67246 contained MK-8(H) as the major menaquinone. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and five phospholipids. The major cellular fatty acids were iso-C, C 8 and summed feature 9 (iso-C 9/10-methyl C). -2,6-Diaminopimelic acid was the diagnostic diamino acid. The whole-cell sugars were galactose, glucose and ribose. Based on this polyphasic taxonomic study, strain SCSIO 67246 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is SCSIO 67246 (=MCCC 1K06251=KCTC 49719).

Funding
This study was supported by the:
  • Guangdong Province Introduction of Innovative R&D Team (Award 2019BT02Y262)
    • Principle Award Recipient: Xin-PengTian
  • K.C.Wong Education Foundation (Award GJTD-2020-12)
    • Principle Award Recipient: Xin-PengTian
  • Key Research and Development Project of Hainan Province (Award ZDKJ202018)
    • Principle Award Recipient: Xin-PengTian
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2022-05-05
2022-05-18
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