根瘤菌属菌株ORS571能以N₂和烟酸作为氮源进行协同生长。
Rhizobium sp. strain ORS571 grows synergistically on N2 and nicotinate as N sources.
作者信息
Ludwig R A
出版信息
J Bacteriol. 1986 Jan;165(1):304-7. doi: 10.1128/jb.165.1.304-307.1986.
Abstract
Rhizobium sp. strain ORS571 conducts synergistic, free-living N2 fixation and nicotinate oxidation. Explicitly, ORS571 is able to fix N2 aerobically because 6-OH-nicotinate acts as an intracellular O2 sink. Because 6-OH-nicotinate oxidation is mandatory for aerobic, free-living N2 fixation and because the synergistic processes yield ammonium from substrates (as the nitrogen source for growth), ORS571 is not a diazotroph.
摘要
根瘤菌属菌株ORS571能进行协同的、自由生活状态下的固氮作用和烟酸盐氧化。具体而言，ORS571能够在有氧条件下固氮，因为6-羟基烟酸盐充当细胞内的氧气汇。由于6-羟基烟酸盐氧化对于有氧、自由生活状态下的固氮作用是必需的，并且由于协同过程从底物中产生铵（作为生长的氮源），所以ORS571不是固氮菌。
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Characterization of three genomic loci encoding Rhizobium sp. strain ORS571 N2 fixation genes.编码根瘤菌属菌株ORS571固氮基因的三个基因组位点的特征分析
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