Glutathione Is Required by Rhizobium etli for Glutamine Utilization and Symbiotic Effectiveness
نویسندگان
چکیده
منابع مشابه
Structural elements required for replication and incompatibility of the Rhizobium etli symbiotic plasmid.
The symbiotic plasmid of Rhizobium etli CE3 belongs to the RepABC family of plasmid replicons. This family is characterized by the presence of three conserved genes, repA, repB, and repC, encoded by the same DNA strand. A long intergenic sequence (igs) between repB and repC is also conserved in all members of the plasmid family. In this paper we demonstrate that (i) the repABC genes are organiz...
متن کاملCharacterization of IntA, a bidirectional site-specific recombinase required for conjugative transfer of the symbiotic plasmid of Rhizobium etli CFN42.
Site-specific recombination occurs at short specific sequences, mediated by the cognate recombinases. IntA is a recombinase from Rhizobium etli CFN42 and belongs to the tyrosine recombinase family. It allows cointegration of plasmid p42a and the symbiotic plasmid via site-specific recombination between attachment regions (attA and attD) located in each replicon. Cointegration is needed for conj...
متن کاملA phosphate transport system is required for symbiotic nitrogen fixation by Rhizobium meliloti.
The bacterium Rhizobium meliloti forms N2-fixing root nodules on alfalfa plants. The ndvF locus, located on the 1,700-kb pEXO megaplasmid of R. meliloti, is required for nodule invasion and N2 fixation. Here we report that ndvF contains four genes, phoCDET, which encode an ABC-type transport system for the uptake of Pi into the bacteria. The PhoC and PhoD proteins are homologous to the Escheric...
متن کاملRhizobium etli asparaginase II
Bacterial L-asparaginase has been a universal component of therapies for childhood acute lymphoblastic leukemia since the 1970s. Two principal enzymes derived from Escherichia coli and Erwinia chrysanthemi are the only options clinically approved to date. We recently reported a study of recombinant L-asparaginase (AnsA) from Rhizobium etli and described an increasing type of AnsA family members...
متن کاملRhizobium etli and Rhizobium gallicum Nodulate Phaseolus vulgaris in Egyptian Soils and Display Cultivar-Dependent Symbiotic Efficiency
Twelve rhizobial isolates were recovered from nodules of common bean (Phaseolus vulgaris) grown in two different locations of Egyptian soils. The most effective strains for nodule formation and nitrogen fixation were selected. Strain specificity with the bean cultivars Saxa, Canoca and Giza 6 from Germany, Colombia and Egypt were studied. The strains were characterized by amplified rDNA restric...
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ژورنال
عنوان ژورنال: Molecular Plant-Microbe Interactions®
سال: 2012
ISSN: 0894-0282,1943-7706
DOI: 10.1094/mpmi-06-11-0163