Paenibacillus mobilis sp. Nov., a gram-stain-negative bacterium isolated from soil

Dahye Yang, Seho Cha, Jiwon Choi, Taegun Seo

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13 Scopus citations

Abstract

A novel Gram-stain-negative bacterium, designated strain S8T, was isolated from a soil sample obtained in Gyeonggi Province, Republic of Korea. Cells of strain S8T were endospore-forming, motile by means of peritrichous flagella, and rod-shaped. S8T colonies were round, convex, wavy and white. Strain S8T grew optimally at 37°C, pH 6–8, and up to 2.0% (w/v) NaCl. Based on 16S rRNA gene sequence similarity, strain S8T was affiliated with the genus Paenibacillus in the family Paenibacillaceae and was most closely related to Paenibacillus yonginensis DCY84T and Paenibacillus physcomitrellae XBT (98.8 and 97.1% sequence similarity). The DNA G+C content of the novel strain was 53.1±0.3 mol%. Strain S8T contained diphosphatidylglycerol, phosphatidylglycerol, two phospholipids, four aminophospholipids, an aminolipid and three unidentified lipids. The major fatty acid was anteiso-branched C15: 0. The quinone was menaquinone MK-7. The peptidoglycan of strain S8T contained mesodiaminopimelic acid. The DNA–DNA hybridization values of strain S8T with P. yonginensis KCTC 33428T and P. physcomitrellae DSM 29851T were 44% and 32 %, respectively. Data from the DNA–DNA hybridization, biochemical, phylogenetic and physiological analyses indicate that strain S8T (=KCTC 33848T=JCM 31672T) represents a novel species of the genus Paenibacillus, for which the name Paenibacillus mobilis sp. nov. is proposed.

Original languageEnglish
Article number002643
Pages (from-to)1140-1145
Number of pages6
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume68
Issue number4
DOIs
StatePublished - Apr 2018

Keywords

  • DNA-DNA relatedness
  • Paenibacillus
  • Taxonomy

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