ArticleApplied and environmental microbiology2015
Preferential association of endophytic bradyrhizobia with different rice cultivars and its implications for rice endophyte evolution.
Article in Applied and environmental microbiology, 2015. 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, 68 citations in OpenAlex.
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- Sphingobium salicis sp. nov., a novel endophyte with two subspecies from pioneer plants growing on primary substrates.Antonie van Leeuwenhoek · 2025Article
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- Differential responses of Bradyrhizobium sp. SUTN9-2 to plant extracts and implications for endophytic interactions within different host plants.Scientific reports · 2025Article
- Correlating phylogenetic and functional diversity of the nod-free but nodulating Bradyrhizobium phylogroup.The ISME journal · 2025Article
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- Exploring the Potential of Bacterial Endophytes in Plant Disease Management.Current microbiology · 2024Review
- Characterization of photosyntheticPlant signaling & behavior · 2023Article
- Both incompatible and compatible rhizobia inhabit the intercellular spaces of leguminous root nodules.Plant signaling & behavior · 2023Article
- The Type IV Secretion System (T4SS) Mediates Symbiosis betweenApplied and environmental microbiology · 2023Article
- Detection of endophytic association between Aeschynomene nodulating Bradyrhizobium sp. and traditional Desariya rice roots under rice-Aeschynomene ecosystem of chaur land, Bihar, India.Biologia futura · 2022Article
- Understanding plant-microbe interaction of rice and soybean with two contrasting diazotrophic bacteria through comparative transcriptome analysis.Frontiers in plant science · 2022Article
- Application of Recombinant Human scFv Antibody as a Powerful Tool to Monitor Nitrogen Fixing Biofertilizer in Rice and Legume.Microbiology spectrum · 2021Article
- Identification of an Exopolysaccharide Biosynthesis Gene inMicroorganisms · 2021Article
- Wild rice harbors more root endophytic fungi than cultivated rice in the F1 offspring after crossbreeding.BMC genomics · 2021Article
- Soil Microsite Outweighs Cultivar Genotype Contribution toFrontiers in microbiology · 2021Article
- Genotypic Variation of Endophytic Nitrogen-Fixing Activity and Bacterial Flora in Rice Stem Based on Sugar Content.Frontiers in plant science · 2021Article
- Transcriptomic and Metabolomic Approaches Deepen Our Knowledge of Plant-Endophyte Interactions.Frontiers in plant science · 2021Review
- Mechanisms of Rice Endophytic Bradyrhizobial Cell Differentiation and Its Role in Nitrogen Fixation.Microbes and environments · 2020Article
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Authors and funding
10 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant colonization by bradyrhizobia is found not only in leguminous plants but also in nonleguminous species such as rice. To understand the evolution of the endophytic symbiosis of bradyrhizobia, the effect of the ecosystems of rice plantations on their associations was investigated. Samples were collected from various rice (Oryza sativa) tissues and crop rotational systems. The rice endophytic bradyrhizobia were isolated on the basis of oligotrophic properties, selective medium, and nodulation on siratro (Macroptilium atropurpureum). Six bradyrhizobial strains were obtained exclusively from rice grown in a crop rotational system. The isolates were separated into photosynthetic bradyrhizobia (PB) and nonphotosynthetic bradyrhizobia (non-PB). Thai bradyrhizobial strains promoted rice growth of Thai rice cultivars better than the Japanese bradyrhizobial strains. This implies that the rice cultivars possess characteristics that govern rice-bacterium associations. To examine whether leguminous plants in a rice plantation system support the persistence of rice endophytic bradyrhizobia, isolates were tested for legume nodulation. All PB strains formed symbioses with Aeschynomene indica and Aeschynomene evenia. On the other hand, non-PB strains were able to nodulate Aeschynomene americana, Vigna radiata, and M. atropurpureum but unable to nodulate either A. indica or A. evenia. Interestingly, the nodABC genes of all of these bradyrhizobial strains seem to exhibit low levels of similarity to those of Bradyrhizobium diazoefficiens USDA110 and Bradyrhizobium sp. strain ORS285. From these results, we discuss the evolution of the plant-bradyrhizobium association, including nonlegumes, in terms of photosynthetic lifestyle and nod-independent interactions.
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