ArticlePloS one2014
Structure and biological roles of Sinorhizobium fredii HH103 exopolysaccharide.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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22 citing papers in PubMed.
- Review
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- Non-Ionic Osmotic Stress Induces the Biosynthesis of Nodulation Factors and Affects Other Symbiotic Traits inBiology · 2023Article
- Nod factor perception: an integrative view of molecular communication during legume symbiosis.Plant molecular biology · 2022Review
- The Rhizobial Type 3 Secretion System: The Dr. Jekyll and Mr. Hyde in the Rhizobium-Legume Symbiosis.International journal of molecular sciences · 2022Review
- Surface Motility Regulation ofInternational journal of molecular sciences · 2022Article
- Identification of an Exopolysaccharide Biosynthesis Gene inMicroorganisms · 2021Article
- Rhizobial Exopolysaccharides: Genetic Regulation of Their Synthesis and Relevance in Symbiosis with Legumes.International journal of molecular sciences · 2021Review
- Mesorhizobium ciceri as biological tool for improving physiological, biochemical and antioxidant state of Cicer aritienum (L.) under fungicide stress.Scientific reports · 2021Article
- Exopolysaccharide Characterization ofFrontiers in plant science · 2021Article
- Structure of the unusualThe Journal of biological chemistry · 2020Article
- Transcriptomic Studies Reveal that theInternational journal of molecular sciences · 2019Article
- Mutation in theGenes · 2018Article
- Glyphosate induced toxicity to chickpea plants and stress alleviation by herbicide tolerant phosphate solubilizing3 Biotech · 2018Article
- Conserved Composition of Nod Factors and Exopolysaccharides Produced by Different Phylogenetic LineageFrontiers in microbiology · 2018Article
- Studies of rhizobial competitiveness for nodulation in soybean using a non-destructive split-root system.AIMS microbiology · 2017Article
- Structures of Exopolysaccharides Involved in Receptor-mediated Perception of Mesorhizobium loti by Lotus japonicus.The Journal of biological chemistry · 2016Article
- Bacterial Molecular Signals in the Sinorhizobium fredii-Soybean Symbiosis.International journal of molecular sciences · 2016Article
- Genetic Analysis Reveals the Essential Role of Nitrogen Phosphotransferase System Components in Sinorhizobium fredii CCBAU 45436 Symbioses with Soybean and Pigeonpea Plants.Applied and environmental microbiology · 2016Article
- Exopolysaccharide Production by Sinorhizobium fredii HH103 Is Repressed by Genistein in a NodD1-Dependent Manner.PloS one · 2016Article
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11 authors.
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Abstract
Here we report that the structure of the Sinorhizobium fredii HH103 exopolysaccharide (EPS) is composed of glucose, galactose, glucuronic acid, pyruvic acid, in the ratios 5∶2∶2∶1 and is partially acetylated. A S. fredii HH103 exoA mutant (SVQ530), unable to produce EPS, not only forms nitrogen fixing nodules with soybean but also shows increased competitive capacity for nodule occupancy. Mutant SVQ530 is, however, less competitive to nodulate Vigna unguiculata. Biofilm formation was reduced in mutant SVQ530 but increased in an EPS overproducing mutant. Mutant SVQ530 was impaired in surface motility and showed higher osmosensitivity compared to its wild type strain in media containing 50 mM NaCl or 5% (w/v) sucrose. Neither S. fredii HH103 nor 41 other S. fredii strains were recognized by soybean lectin (SBL). S. fredii HH103 mutants affected in exopolysaccharides (EPS), lipopolysaccharides (LPS), cyclic glucans (CG) or capsular polysaccharides (KPS) were not significantly impaired in their soybean-root attachment capacity, suggesting that these surface polysaccharides might not be relevant in early attachment to soybean roots. These results also indicate that the molecular mechanisms involved in S. fredii attachment to soybean roots might be different to those operating in Bradyrhizobium japonicum.
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