The Azospirillum humicireducens strain SgZ-5T, belonging to the Order Rhodospirillales and the Family Rhodospirillaceae, was isolated from a microbial fuel cell inoculated with paddy soil. A previous work has shown that strain SgZ-5T was able to fix atmospheric nitrogen involved in plant growth promotion. Here we present the complete genome of A. humicireducens SgZ-5T, which consists of a circular chromosome and six plasmids with the total genome size of 6,834,379 bp and the average GC content of 67.55%. Genome annotations predicted 5969 protein coding and 85 RNA genes including 14 rRNA and 67 tRNA genes. By genomic analysis, we identified a complete set of genes that is potentially involved in nitrogen fixation and its regulation. This genome also harbors numerous genes that are likely responsible for phytohormones production. We anticipate that the A. humicireducens SgZ-5T genome will contribute insights into plant growth promoting properties of Azospirillum strains.

中文翻译：

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固氮细菌腐殖藻型菌株SgZ-5 ^T的完整基因组序列

从接种稻田的微生物燃料电池中分离出属于拟螺旋藻科和拟螺旋藻科的人形拟螺旋体菌株SgZ-5T。先前的工作表明，SgZ-5T菌株能够固定参与植物生长促进的大气氮。在这里，我们介绍了完整的A. humicireducens SgZ-5T基因组，它由一个环状染色体和六个质粒组成，总基因组大小为6,834,379 bp，平均GC含量为67.55％。基因组注释预测了5969种蛋白质编码和85个RNA基因，包括14个rRNA和67个tRNA基因。通过基因组分析，我们确定了可能与固氮及其调控有关的一整套基因。该基因组还包含可能负责植物激素产生的众多基因。