4.4 Article

Chengkuizengella sediminis gen. nov sp nov., isolated from sediment

出版社

MICROBIOLOGY SOC
DOI: 10.1099/ijsem.0.002006

关键词

Marine bacteria; Chengkuizengella sediminis gen. nov sp nov.; sediment; South China Sea

资金

  1. National Natural Science Foundation of China [41406062]
  2. Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11030202]

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A Gram-stain-positive, aerobic, motile, endospore-forming bacterium, designated strain J15A17(T), was isolated from sediment of the South China Sea. The strain was oxidase-positive and catalase-negative. Optimal growth occurred at 33 degrees C, pH 7.5 and in the presence of 3% (w/v) NaCl. On the basis of 16S rRNA gene sequence analysis, the strain showed closest similarity (92.8 %) to Paenibacillus puldeungensis strain CAU 9324(T). Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate forms a separate branch within the family Paenibacillaceae, with the genus Cohnella as the most closely related genus. The DNA G+C content of strain J15A17(T) was 37.4 mol%. The strain contained MK-7 as the sole respiratory quinone; anteiso-C-15:0 and iso-C-16:0 were the major cellular fatty acids; and its polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, glycolipid and four unidentified phospholipids. The strain displayed the peptidoglycan type A4 alpha L-Lys-D-Asp in the cell wall. Phylogenetic, physiological, biochemical and morphological differences between strain J15A17(T) and its closest relatives in the genera Cohnella, Fontibacillus and Paenibacillus suggest that strain J15A17(T) (=KCTC 33759(T) = MCCC 1H00137(T)) represents the type strain of a novel species in a new genus within the family Paenibacillaceae, Chengkuizengella sediminis gen. nov. sp. nov.

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