Genetic Ecology of Rhizobium and Bradyrhizobium.
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چکیده
منابع مشابه
Nonnodulating Bradyrhizobium spp. Modulate the Benefits of Legume-Rhizobium Mutualism.
UNLABELLED Rhizobia are best known for nodulating legume roots and fixing atmospheric nitrogen for the host in exchange for photosynthates. However, the majority of the diverse strains of rhizobia do not form nodules on legumes, often because they lack key loci that are needed to induce nodulation. Nonnodulating rhizobia are robust heterotrophs that can persist in bulk soil, thrive in the rhizo...
متن کاملphylogeography and genetic diversity of the lesser mouse- eared bat (myotis blythii) in iran
in current study, 63 samples of bat populations collected from differ regions were used for evaluating the geographic variations. twenty cranial and dental characters for traditional morphometric and landmarks method on the ventral, dorsal skull and mandible for geometry morphometric studies were used. statistical analyses of traditional morphometric and geometry morphometric data indicated low...
Conservation of symbiotic nitrogen fixation gene sequences in Rhizobium japonicum and Bradyrhizobium japonicum.
Southern hybridization with nif (nitrogen fixation) and nod (nodulation) DNA probes from Rhizobium meliloti against intact plasmid DNA of Rhizobium japonicum and Bradyrhizobium japonicum strains indicated that both nif and nod sequences are on plasmid DNA in most R. japonicum strains. An exception is found with R. japonicum strain USDA194 and all B. japonicum strains where nif and nod sequences...
متن کاملIntra- and inter-specific competition in Rhizobium fredii and Bradyrhizobium japonicum as indigenous and introduced organisms
Schmidt 1973; Kapusta and Rouwenhorst 1973; Weaver and Frederick 1974). However, the numbers needed to overcome indigenous rhizobia are in many cases too excessive to be practical. In much of the soybean-growing area in the north central United States, an area encompassing many soil types, indigeneous strains of Bradyrhizobium japonicum serogroup 123 dominate nodulation of soybeans (Damirgi et ...
متن کاملSurvival of several Rhizobium/Bradyrhizobium strains on different inoculant formulations and inoculated seeds.
The effect of a variety factors on the survival of several rhizobia strains on inoculants and inoculated seeds has been evaluated. Since the rhizobia strains showed different cell-density-evolution patterns on peat-based inoculants and on inoculated seeds, several inoculant formulations with highly effective Rhizobium/Bradyrhizobium strains (for Lupinus, Hedysarum, Phaseolus and Glycine max.) w...
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ژورنال
عنوان ژورنال: Journal of the agricultural chemical society of Japan
سال: 1993
ISSN: 0002-1407,1883-6844
DOI: 10.1271/nogeikagaku1924.67.1070