| rhizobium grahamii sp. nov. from dalea leporina, leucaena leucocephala, clitoria ternatea nodules, and rhizobium mesoamericanum sp. nov. from phaseolus vulgaris, siratro, cowpea and mimosa pudica nodules. | two novel related rhizobium species, rhizobium grahamii and rhizobium mesoamericanum were identified by a polyphasic approach using dna-dna hybridization, whole genome sequencing, phylogenetic and phenotypic characterization including nodulation of leucaena leucocephala and phaseolus vulgaris (bean). as similar bacteria were found in los tuxtlas rain forest and in central america we suggest the existence of a mesoamerican microbiological corridor. the type strain of rhizobium grahamii sp. nov. i ... | 2011 | 22081714 |
| characterization of rhizobium grahamii extrachromosomal replicons and their transfer among rhizobia. | rhizobium grahamii belongs to a new phylogenetic group of rhizobia together with rhizobium mesoamericanum and other species. r. grahamii has a broad-host-range that includes leucaena leucocephala and phaseolus vulgaris, although it is a poor competitor for p. vulgaris nodulation in the presence of rhizobium etli or rhizobium phaseoli strains. this work analyzed the genome sequence and transfer properties of r. grahamii plasmids. | 2014 | 24397311 |
| high-quality draft genome sequence of rhizobium mesoamericanum strain stm6155, a mimosa pudica microsymbiont from new caledonia. | rhizobium mesoamericanum stm6155 (inscd = atyy01000000) is an aerobic, motile, gram-negative, non-spore-forming rod that can exist as a soil saprophyte or as an effective nitrogen fixing microsymbiont of the legume mimosa pudica l.. stm6155 was isolated in 2009 from a nodule of the trap host m. pudica grown in nickel-rich soil collected near mont dore, new caledonia. r. mesoamericanum stm6155 was selected as part of the doe joint genome institute 2010 genomic encyclopedia for bacteria and archae ... | 2017 | 28116041 |
| rhizobium metallidurans sp. nov., a symbiotic heavy metal resistant bacterium isolated from the anthyllis vulneraria zn-hyperaccumulator. | a gram-stain-negative, aerobic, rod-shaped, non-spore-forming bacterium (chimec512(t)) was isolated from 56 host seedlings of the hyperaccumulating anthyllis vulneraria legume, which was on an old zinc mining site at les avinières, saint-laurent-le-minier, gard, south of france. on the basis of 16s rrna gene sequence similarities, strain chimec512(t) was shown to belong to the genus rhizobium and to be most closely related to rhizobium endophyticum ccge 2052(t) (98.4%), rhizobium tibeticum ccbau ... | 2015 | 25701848 |
| microsymbionts of phaseolus vulgaris in acid and alkaline soils of mexico. | in order to investigate bean-nodulating rhizobia in different types of soil, 41 nodule isolates from acid and alkaline soils in mexico were characterized. based upon the phylogenetic studies of 16s rrna, atpd, glnii, reca, rpob, gyrb, nifh and nodc genes, the isolates originating from acid soils were identified as the phaseoli symbiovar of the rhizobium leguminosarum-like group and rhizobium grahamii, whereas the isolates from alkaline soils were defined as ensifer americanum sv. mediterranense ... | 2014 | 25294010 |
| diversity and distribution of the endophytic bacterial community at different stages of eucalyptus growth. | the relationships between plants and endophytic bacteria significantly contribute to plant health and yield. however, the microbial diversity in leaves of eucalyptus spp. is still poorly characterized. here, we investigated the endophytic diversity in leaves of hybrid eucalyptus grandis x e. urophylla (eucalyptus "urograndis") by using culture-independent and culture-dependent approaches, to better understand their ecology in leaves at different stages of eucalyptus development, including bacter ... | 2016 | 27010209 |
| rhizobium altiplani sp. nov., isolated from effective nodules on mimosa pudica growing in untypically alkaline soil in central brazil. | root nodule bacteria were isolated from nodules on mimosa pudica l. growing in neutral-alkaline soils from the distrito federal in central brazil. the 16s rrna gene sequence analysis of 10 strains placed them into the genus rhizobium with the closest neighbouring species (each with 99 % similarity) being rhizobium grahamii, rhizobium cauense, rhizobium mesoamericanum and rhizobium tibeticum. this high similarity, however, was not confirmed by multi-locus sequence analysis (mlsa) using three hous ... | 2016 | 27453319 |
| host-dependent symbiotic efficiency of rhizobium leguminosarum bv. trifolii strains isolated from nodules of trifolium rubens. | trifolium rubens l., commonly known as the red feather clover, is capable of symbiotic interactions with rhizobia. up to now, no specific symbionts of t. rubens and their symbiotic compatibility with trifolium spp. have been described. we characterized the genomic diversity of t. rubens symbionts by analyses of plasmid profiles and box-pcr. the phylogeny of t. rubens isolates was inferred based on the nucleotide sequences of 16s rrna and two core genes (atpd, reca). the nodc phylogeny allowed cl ... | 2017 | 28791535 |
| genome sequence of rhizobium grahamii ccge502, a broad-host-range symbiont with low nodulation competitiveness in phaseolus vulgaris. | here we present the genome sequence of rhizobium grahamii ccge502. r. grahamii groups with other newly described broad-host-range species, which are not very efficient phaseolus vulgaris symbionts, with a wide geographic distribution and which constitutes a novel rhizobium clade. | 2012 | 23144400 |