文献类型： 外文期刊
第一作者： Liao, Kaiji
作者： Liao, Kaiji;Wu, Jingyi;Wang, Can;Li, Jun- Zhou;Wei, Hai - Lei
作者机构：
关键词： novel species; plant growth- promoting rhizobacteria; polyphasic taxonomy; Pseudomonas.
期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.0； 五年影响因子：2.4 ）
ISSN： 1466-5026
年卷期： 2024 年 74 卷 7 期
页码：
收录情况： SCI
摘要： A polyphasic taxonomic approach was used to characterize the three bacterial strains (FP830T, T , FP2034, and FP2262) isolated from the rhizosphere soil of rice, corn, and highland barley in Beijing, Heilongjiang, and Tibet, respectively, in PR China. These strains were Gram- negative, rod- shaped, and have one or two polar flagella. They exhibited optimal growth at 28 degrees C and pH 7.0 in the presence of 1 % (w/v) NaCl and showed fluorescence under ultraviolet light when cultivated on King's B plates. The FP830T T genome size is 6.4 Mbp with a G+C content of 61.0 mol%. FP830T T has the potential to promote plant growth by producing various metabolites such as fengycin, pyoverdin, indole- 3- acetic acid, and the volatile substance 2,3- butanediol. Phylogenetic analysis indicated that three isolates formed an independent branch, which most closely related to type strains Pseudomonas thivervalensis DSM 13194T T and Pseudomonas zanjanensis SWRI12T. T . The values of average nucleotide identity and digital DNA- DNA hybridization between three isolates and closest relatives were not higher than 93.7 and 52.3 %, respectively. The dominant cellular fatty acids were C 16:0 , summed feature 3 ( C 16: 1 w 7 c /C 16: 1 w 6 c ), and summed feature 8 ( C 18: 1w7c/C18: w 7 c /C 18: 1 w 6 c ). The major polar lipids were phosphatidylethanolamine, diphosphatidylglycerol, and aminophospholipid. The predominant respiratory quinone was ubiquinone (Q- 9). Based on polyphasic taxonomic analysis, it was concluded that strains FP830T, T , FP2034, and FP2262 represented a novel species within the genus Pseudomonas, , and Pseudomonas beijingensis sp. nov. was proposed for the name of novel species. The type strain is FP830T T (=ACCC 62448T=JCM T =JCM 35689T). T ).
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