Antioxidation and symbiotic nitrogen fixation function of prxA gene in Mesorhizobium huakuii
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چکیده
منابع مشابه
Characterization of a Mesorhizobium loti alpha-type carbonic anhydrase and its role in symbiotic nitrogen fixation.
Carbonic anhydrase (CA) (EC 4.2.1.1) is a widespread enzyme catalyzing the reversible hydration of CO(2) to bicarbonate, a reaction that participates in many biochemical and physiological processes. Mesorhizobium loti, the microsymbiont of the model legume Lotus japonicus, possesses on the symbiosis island a gene (msi040) encoding an alpha-type CA homologue, annotated as CAA1. In the present wo...
متن کاملLotus japonicus alters in planta fitness of Mesorhizobium loti dependent on symbiotic nitrogen fixation
Rhizobial bacteria are known for their capacity to fix nitrogen for legume hosts. However ineffective rhizobial genotypes exist and can trigger the formation of nodules but fix little if any nitrogen for hosts. Legumes must employ mechanisms to minimize exploitation by the ineffective rhizobial genotypes to limit fitness costs and stabilize the symbiosis. Here we address two key questions about...
متن کاملSymbiotic Nitrogen Fixation.
Biosphere nitrogen is subjected to rapid turnover, and because it is eventually lost as nitrogen into the atmosphere, its maintenance requires continuous replenishment with reduced nitrogen from atmospheric nitrogen. Biological reduction of nitrogen to ammonia can be performed only by some prokaryotes and is a highly oxygen-sensitive process. The most efficient nitrogen fixers establish a symbi...
متن کاملCharacterisation of Mesorhizobium huakuii cyclic -glucan
Periplasmic and extracellular glucans of Mesorhizobium huakuii were isolated and characterized by compositional and MALDI-TOF analyses, as well as H and C NMR spectroscopy. It was shown that M. huakuii produces a cyclic -glucan composed entirely of nonbranched glucose chains and unmodified by nonsugar substituents. The degree of polymerisation of the cyclic oligosaccharides was estimated to be ...
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ژورنال
عنوان ژورنال: MicrobiologyOpen
سال: 2019
ISSN: 2045-8827,2045-8827
DOI: 10.1002/mbo3.889