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Ai J, He X, Ren M, Yu T, Liu X, Jiang Y, Li Z, Deng Z. Kaistella yananensis sp. nov., a Novel Indoleacetic Acid-Producing Bacterium Isolated from the Root Nodules of Sophora davidii (Franch.) Skeels. Curr Microbiol 2024; 81:60. [PMID: 38206520 DOI: 10.1007/s00284-023-03578-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/01/2023] [Indexed: 01/12/2024]
Abstract
A novel endophytic bacterium, designated strain BT6-1-3T, was isolated from the root nodules of a leguminous shrub named Sophora davidii (Franch.) Skeels, found growing wild in Yan'an, Shaanxi Province, China. Cells were Gram-staining-negative, non-motile, catalase-positive, oxidase-positive, and did not produce H2S. Strain BT6-1-3T grew at 15-40 °C (optimum 30 °C), at pH 6.0-10.0 (optimum pH 9.0), and with 0-1% (w/v) NaCl (optimum 0.5%). The quinone system was menaquinone 6. The major fatty acids present in BT6-1-3T were iso-C11:0, iso-C15:0, and C16:0. The G+C content of genomic DNA was 39.4 mol% by whole genome sequencing. According to the analysis of 16S rRNA gene sequence, the closest relative was Kaistella montana WG4 (nucleotide identity was 97.6%). The genome of strain BT6-1-3T was sequenced, and the genome similarity was calculated using average nucleotide identity and genome-to-genome distance analysis with the genomes of other strains of Kaistella. Both strongly supported that the strain BT6-1-3T belonged to the genus Kaistella as a representative of a new species. Based on phylogenetic analysis, chemotaxonomic data, and physiological and biochemical characteristics, strain BT6-1-3T represents a new species of the genus Kaistella and is named as Kaistella yananensis sp. nov. Type strain is BT6-1-3T (= NBRC 115452T = CGMCC 1.60032T).
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Affiliation(s)
- Jiamin Ai
- College of Life Science, Northwest A&F University, Yangling, 712100, China
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Xiaolong He
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Mingxia Ren
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Tianfei Yu
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Xiaodong Liu
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Yingying Jiang
- College of Life Sciences, Yan'an University, Yan'an, 716000, China
| | - Zhefei Li
- College of Life Science, Northwest A&F University, Yangling, 712100, China.
| | - Zhenshan Deng
- College of Life Sciences, Yan'an University, Yan'an, 716000, China.
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