The viability of commercial Rhizobium strains (SB-14 and SB-12) were inoculated fungicides (Mancozeb Ridomil) used as seed dressed on soybean to investigate their effect nodulation, plant growth yield soybean. Application Rhizobial inoculants alone gave the highest nodulation shoot dry weight performance well both sites. SB-12 inoculant had significantly shown be more effective than SB-14 in in...

The nodulation genes of Mesorhizobium sp. (Astragalus sinicus) strain 7653R were cloned by functional complementation of Sinorhizobium meliloti nod mutants. The common nod genes, nodD, nodA, and nodBC, were identified by heterologous hybridization and sequence analysis. The nodA gene was found to be separated from nodBC by approximately 22 kb and was divergently transcribed. The 2. 0-kb nodDBC ...

Agriculture is a major anthropogenic source of the greenhouse gas N2O, which also involved in stratospheric ozone depletion. While use rhizobial inoculants has already been reported as an emerging option for mitigating soil N2O emissions, this study presents situ abatement 70% emission using strain nosZ+ G49 vs. nosZ− USDA138 association with soybean. Therefore, we consider that choice inoculan...

Common bean (Phaseolus vulgaris L.) is often cultivated in unfavorable conditions and with minimal inputs. It is estimate that 60% of the bean crop is cultivated under risk of intermittent or terminal drought. The effects of drought on common bean are dependent on the intensity, type and duration of the stress. Due to the symbiotic nature of the legume-bacteria interaction for nitrogen fixation...

The transcriptomics approach to study gene expression in root hairs from M. truncatula has shed light on the developmental events during rhizobial infection and the underlying hormone responses. This approach revealed the induction of several cyclins and an aurora kinase which suggests that the cell-division machinery plays a role in rhizobial infection. Changes in the cell cycle in plants are ...

A multipartite genome organization with a chromosome and many extrachromosomal replicons (ECRs) is characteristic for Alphaproteobacteria. The best investigated ECRs of terrestrial rhizobia are the symbiotic plasmids for legume root nodulation and the tumor-inducing (Ti) plasmid of Agrobacterium tumefaciens. RepABC plasmids represent the most abundant alphaproteobacterial replicon type. The cur...