固氮螺菌属的基因组结构。
Genome structure of the genus Azospirillum.
作者信息
Martin-Didonet C C, Chubatsu L S, Souza E M, Kleina M, Rego F G, Rigo L U, Yates M G, Pedrosa F O
机构信息
Departamento de Bioquímica, Universidade Federal do Paraná, CEP-81531-990, Curitiba-PR, Brazil.
出版信息
J Bacteriol. 2000 Jul;182(14):4113-6. doi: 10.1128/JB.182.14.4113-4116.2000.
Abstract
Azospirillum species are plant-associated diazotrophs of the alpha subclass of Proteobacteria. The genomes of five of the six Azospirillum species were analyzed by pulsed-field gel electrophoresis. All strains possessed several megareplicons, some probably linear, and 16S ribosomal DNA hybridization indicated multiple chromosomes in genomes ranging in size from 4.8 to 9.7 Mbp. The nifHDK operon was identified in the largest replicon.
摘要
固氮螺菌属是与植物相关的变形菌门α亚类的固氮菌。通过脉冲场凝胶电泳分析了六个固氮螺菌属物种中五个物种的基因组。所有菌株都拥有几个大复制子，有些可能是线性的，16S核糖体DNA杂交表明基因组中有多个染色体，大小在4.8至9.7 Mbp之间。在最大的复制子中鉴定出了nifHDK操纵子。
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