نتایج جستجو برای: rhizobium sp
تعداد نتایج: 124844 فیلتر نتایج به سال:
Using a polyphasic approach (including cellular protein and fatty acid analysis, biochemical characterization, 16S ribosomal DNA sequencing, and DNA-DNA hybridizations), we characterized 51 bacterial isolates recovered from respiratory secretions of cystic fibrosis (CF) patients. Our analyses showed that 24 isolates belong to taxa that have so far not (or only rarely) been reported from CF pati...
Nitrogen is the nutrient plants require in the highest amount, and in agriculture nitrogen availability has a major influence on both yield and product quality. In nature plants acquire nitrogen by assimilation of nitrate and ammonium or from dinitrogen through association with nitrogen-fixing bacteria. Symbiotic nitrogen fixation, where the plant supplies the carbon source for the energy-depen...
Rhizobium sp. strain NGR234 produces a large family of lipochitooligosaccharide Nod factors carrying specific substituents. Among them are 3-O- (or 4-O-) and 6-O-carbamoyl groups, an N-methyl group, and a 2-O-methylfucose residue which may bear either 3-O-sulfate or 4-O-acetyl substitutions. Investigations on the genetic control of host specificity revealed a number of loci which directly affec...
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