Pontibacter kalidii sp. nov., isolated from rhizosphere soil of Kalidium foliatum

Author:

Wang Hui-Nan12,Jiang Ling3,Osman Ghenijan2,Chu Min2,Gu Mei-Ying2,Tang Qi-Yong2,Zhu Yan-Lei1,Zhu Jing2,Zhang Zhi-Dong3241ORCID

Affiliation:

1. College of Life Sciences, Xinjiang Normal University, Urumqi 830054, PR China

2. Institute of Applied Microbiology, Xinjiang Academy of Agricultural Sciences/ Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, Xinjiang, PR China

3. College of Food Science and Light Industry, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China

4. College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China

Abstract

A Gram-negative, aerobic, gliding motile, rod-shaped bacterium, designated XAAS-72T, was isolated from the rhizosphere soil of Kalidium foliatum sampled in the Xinjiang Uyghur Autonomous Region, PR China. Cells grew at 4–45 °C, pH 5.0–8.0 and 0–8% NaCl, with optimal growth at 20–30 °C, pH 6.0–7.0 and 1–2 % NaCl. Strain XAAS-72T is closely related to members of the genus Pontibacter , namely Pontibacter korlensis CCTCC AB 206081T (97.6%) and Pontibacter flavimaris ACCC 19859T (97.2 %), and <94.6 % related to other currently described Pontibacter strains. The average nucleotide identity values between XAAS-72T and P. korlensis CCTCC AB 206081T and P. flavimaris ACCC 19859T were 77.9 and 86.9 %, respectively; the corresponding digital DNA–DNA hybridization values were 21.7 and 31.8 %. Menaquinone-7 was the predominant respiratory menaquinone. The polar lipids consisted of phosphatidylethanolamine, two unidentified aminophospholipids, two unidentified glycolipids and five unidentified lipids. The major cellular fatty acids were summed feature 4 (containing iso-C17 : 1 I/anteiso-C17 : 1 B), summed feature 3 (containing C16 : 1  ω7c/C16 : 1  ω6c) and iso-C15 : 0. The genome length of strain XAAS-72T was 5 054 860 bp with a genomic DNA G+C content of 54.5 mol%. The phenotypic and genotypic data suggest that strain XAAS-72T represents a novel species of the genus Pontibacter , for which the name Pontibacter kalidii sp. nov. is proposed. The strain is XAAS-72T (CGMCC 16594T=KCTC 72095T).

Funder

Special Project for Basic Scientific Activities of Non-profit Institutes Supported the Government of Xinjiang Uyghur Autonomous Region

Special Incubation Project of Science & Technology Renovation of Xinjiang Academy of Agricultural Sciences

Publisher

Microbiology Society

Subject

General Medicine,Ecology, Evolution, Behavior and Systematics,Microbiology

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