Pseudomonas chlororaphis subsp. aurantiaca strain JD37 is a plant growth-promoting rhizobacterium (PGPR), which has important biotechnological features such as plant growth promotion, rhizosphere colonization and biocontrol activities. In present study, the genome sequence of JD37 was obtained and comparative genomic analysis were performed to explore unique features of the JD37 genome and its relationship with other Pseudomonas PGPR: P. chlororaphis PA23, P. protegens Pf-5 and P. aeruginosa M18. JD37 possessed a single circular chromosome of 6,702,062 bp in length with an average GC content of 62.75 %. No plasmid was detected in JD37. A total of 5003 functional proteins of JD37 were predicted according to the clusters of orthologous groups (COGs) database. The JD37 genome consisted of various genes involved in plant growth promotion, biocontrol activities and defense responses. Genes involved in the rhizosphere colonization and motility were also found in the genome of JD37, suggesting the common plant growth-promoting traits in PGPR. The identified resistance genes (e.g. those related to metal resistance, antibiotics, and osmotic and temperature-shock) and secondary metabolite biosynthesis revealed the pathways for metabolites it produced. Data presented in present study further provided valuable information on its molecular genetics and adaptive capacity in the rhizosphere niche.

绿假单胞菌亚种。aurantiaca菌株JD37是一种促进植物生长的根瘤菌（PGPR），它具有重要的生物技术特征，例如促进植物生长，根际定植和生物防治活性。在本研究中，获得了JD37的基因组序列，并进行了比较基因组分析，以探索JD37基因组的独特特征及其与其他假单胞菌PGPR的关系：绿脓假单胞菌PA23，蛋白假单胞菌Pf-5和铜绿假单胞菌。M18。JD37拥有一个长度为6,702,062 bp的单条环状染色体，平均GC含量为62.75％。在JD37中未检测到质粒。根据直系同源基因组（COGs）数据库的簇，共预测了5003个JD37功能蛋白。JD37基因组由参与植物生长促进，生物防治活动和防御反应的各种基因组成。在JD37的基因组中也发现了与根际定殖和运动相关的基因，表明PGPR中常见的促进植物生长的性状。鉴定出的抗性基因（例如与金属抗性，抗生素，渗透和温度冲击有关的基因）和次级代谢产物的生物合成揭示了其产生代谢产物的途径。