Role of the fixGHI region of Azorhizobium caulinodans in free-living and symbiotic nitrogen fixation.
作者信息
Mandon K, Kaminski P A, Mougel C, Desnoues N, Dreyfus B, Elmerich C
机构信息
Département des Biotechnologies, Institut Pasteur, Paris, France.
出版信息
FEMS Microbiol Lett. 1993 Dec 1;114(2):185-9. doi: 10.1111/j.1574-6968.1993.tb06571.x.
Abstract
A 19-kb DNA region containing genes sharing homology with Rhizobium meliloti fixNOQP and fixGHI was isolated from a genomic library of Azorhizobium caulinodans. Identity of fixG was confirmed by partial nucleotide sequencing. Mutant strains in the fixGHI region were constructed by deletion or Tn5 insertions. In contrast with the situation in R. meliloti, the mutants still displayed a significant nitrogenase activity in symbiosis.
摘要
Zotero 插件