Affiliation:
1. State Key Laboratory for Agrobiotechnology, College of Biological Sciences and Key Laboratory of Soil Microbiology of Agriculture Ministry, China Agricultural University, Beijing, People’s Republic of China
Abstract
The members of the nitrogen-fixing
Paenibacillus
spp. have great potential to be used as a bacterial fertilizer in agriculture. However, the functions of the
fnr
gene(s) in nitrogen fixation and other metabolisms in
Paenibacillus
spp. are not known. Here, we found that in
P. polymyxa
WLY78, Fnr1 and Fnr3 were responsible for regulation of numerous genes in response to changes in oxygen levels, but Fnr5 and Fnr7 exhibited little effect. Fnr1 and Fnr3 indirectly or directly regulated many types of important metabolism, such as nitrogen fixation, Fe uptake, respiration, and electron transport. This study not only reveals the function of the
fnr
genes of
P. polymyxa
WLY78 in nitrogen fixation and other metabolisms but also will provide insight into the evolution and regulatory mechanisms of
fnr
in
Paenibacillus
.
Funder
National Natural Science Foundation of China
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Cited by
5 articles.
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