ArticleApplied and environmental microbiology2012
Genetic diversity, symbiotic evolution, and proposed infection process of Bradyrhizobium strains isolated from root nodules of Aeschynomene americana L. in Thailand.
Article in Applied and environmental microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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27 citing papers in PubMed, 51 citations in OpenAlex.
- Aeschynomene americana induces terminal bacteroid differentiation in Bradyrhizobium sp. USDA3516, a novel model for dalbergioid-rhizobium symbiosis.BMC plant biology · 2026Article
- Applying recombinant antibodies for quality control of mixed-culture peanut bradyrhizobial inoculant.AMB Express · 2026Article
- Diversity of bradyrhizobial T3SS systems and their roles in symbiosis with peanut (Applied and environmental microbiology · 2025Article
- Differential responses of Bradyrhizobium sp. SUTN9-2 to plant extracts and implications for endophytic interactions within different host plants.Scientific reports · 2025Article
- A new type III effector from Bradyrhizobium sp. DOA9 encoding a putative SUMO-protease blocks nodulation in Arachis hypogaea L.Scientific reports · 2024Article
- The Type IV Secretion System (T4SS) Mediates Symbiosis betweenApplied and environmental microbiology · 2023Article
- Scrutiny of NolA and NodD1 Regulatory Roles in Symbiotic Compatibility Unveils New Insights into Bradyrhizobium guangxiense CCBAU53363 Interacting with Peanut (Arachis hypogaea) and Mung Bean (Vigna radiata).Microbiology spectrum · 2023Article
- Symbiosis Contribution of Non-nodulating Bradyrhizobium cosmicum S23321 after Transferal of the Symbiotic Plasmid pDOA9.Microbes and environments · 2022Article
- Molecular Basis of Root Nodule Symbiosis betweenPlants (Basel, Switzerland) · 2020Review
- Mechanisms of Rice Endophytic Bradyrhizobial Cell Differentiation and Its Role in Nitrogen Fixation.Microbes and environments · 2020Article
- Type III Secretion System of Bradyrhizobium sp. SUTN9-2 Obstructs Symbiosis with Lotus spp.Microbes and environments · 2020Article
- Effects of Increased 1-Aminocyclopropane-1-Carboxylate (ACC) Deaminase Activity in Bradyrhizobium sp. SUTN9-2 on Mung Bean Symbiosis under Water Deficit Conditions.Microbes and environments · 2020Article
- Homocitrate Synthase Genes of Two Wide-Host-Range Bradyrhizobium Strains are Differently Required for Symbiosis Depending on Host Plants.Microbes and environments · 2019Article
- Article
- The rhizobial type III effector ErnA confers the ability to form nodules in legumes.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- A phylogenetic framework of the legume genus Aeschynomene for comparative genetic analysis of the Nod-dependent and Nod-independent symbioses.BMC plant biology · 2018Article
- Regulation of Nitrogen Fixation inFrontiers in microbiology · 2018Article
- Potential of Rice Stubble as a Reservoir of Bradyrhizobial Inoculum in Rice-Legume Crop Rotation.Applied and environmental microbiology · 2017Article
- Untapped Endophytic Colonization and Plant Growth-Promoting Potential of the Genus Novosphingobium to Optimize Rice Cultivation.Microbes and environments · 2017Article
- Specificity in Legume-Rhizobia Symbioses.International journal of molecular sciences · 2017Review
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The diversity of bacteria nodulating Aeschynomene americana L. in Thailand was determined from phenotypic characteristics and multilocus sequence analysis of the 16S rRNA gene and 3 housekeeping genes (dnaK, recA, and glnB). The isolated strains were nonphotosynthetic bacteria and were assigned to the genus Bradyrhizobium, in which B. yuanmingense was the dominant species. Some of the other species, including B. japonicum, B. liaoningense, and B. canariense, were minor species. These isolated strains were divided into 2 groups-nod-containing and divergent nod-containing strains-based on Southern blot hybridization and PCR amplification of nodABC genes. The divergent nod genes could not be PCR amplified and failed to hybridize nod gene probes designed from B. japonicum USDA110, but hybridized to probes from other bradyrhizobial strains under low-stringency conditions. The grouping based on sequence similarity of nod genes was well correlated with the grouping based on that of nifH gene, in which the nod-containing and divergent nod-containing strains were obviously distinguished. The divergent nod-containing strains and photosynthetic bradyrhizobia shared close nifH sequence similarity and an ability to fix nitrogen in the free-living state. Surprisingly, the strains isolated from A. americana could nodulate Aeschynomene plants that belong to different cross-inoculation (CI) groups, including A. afraspera and A. indica. This is the first discovery of bradyrhizobia (nonphotosynthetic and nod-containing strain) originating from CI group 1 nodulating roots of A. indica (CI group 3). An infection process used to establish symbiosis on Aeschynomene different from the classical one is proposed.
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