Hou Jiawei, Liao Kaiji, Zhang Yong-Jie, Li Jun-Zhou, Wei Hai-Lei
School of Life Science, Shanxi University, Taiyuan 030006, China.
State Key Laboratory of Efficient Utilization of Arid and Semi-Arid Arable Land in Northern China, Key Laboratory of Microbial Resources Collection and Preservation, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Microorganisms. 2024 May 7;12(5):944. doi: 10.3390/microorganisms12050944.
Plant growth-promoting rhizobacterial strain FP607 was isolated from the rhizosphere of beets in Wuhan, China. Strain FP607 exhibited significant antagonism toward several phytopathogenic bacteria, indicating that FP607 may produce antimicrobial metabolites and has a stronger biocontrol efficacy against plant pathogens. Growth-promoting tests showed that FP607 produced indole-3-acetic acid (IAA), NH, and ferritin. The genome sequence of strain FP607 was 6,590,972 bp long with 59.0% G + C content. The optimum temperature range was 25-30 °C, and the optimum pH was 7. The cells of strain FP607 were Gram-negative, short, and rod-shaped, with polar flagella. The colonies on the King's B (KB) agar plates were light yellow, smooth, and circular, with regular edges. A phylogenetic analysis of the 16S rRNA sequence and a multilocus sequence analysis (MLSA) showed that strain FP607 was most closely related to the type of strain SWRI79. Based on a polyphasic taxonomic approach, strain FP607 was identified as a novel species within the genus , for which the name sp. nov. was proposed. The type of strain used was FP607 (JCM 35688, CGMCC 27743, and ACCC 62446).
植物促生根际细菌菌株FP607从中国武汉的甜菜根际分离得到。菌株FP607对多种植物病原细菌表现出显著的拮抗作用,表明FP607可能产生抗菌代谢产物,对植物病原菌具有较强的生防效果。促生长测试表明,FP607能产生吲哚-3-乙酸(IAA)、NH和铁蛋白。菌株FP607的基因组序列长度为6,590,972 bp,G + C含量为59.0%。最适温度范围为25-30℃,最适pH为7。菌株FP607的细胞为革兰氏阴性,短杆状,具极生鞭毛。在King's B(KB)琼脂平板上的菌落为浅黄色,光滑,圆形,边缘整齐。基于16S rRNA序列的系统发育分析和多位点序列分析(MLSA)表明,菌株FP607与模式菌株SWRI79关系最为密切。基于多相分类方法,菌株FP607被鉴定为属内的一个新物种,为此提出了新种名 sp. nov.。所用模式菌株为FP607(JCM 35688、CGMCC 27743和ACCC 62446)。