ArticleThe Plant journal : for cell and molecular biology2020
Sinorhizobium meliloti succinylated high-molecular-weight succinoglycan and the Medicago truncatula LysM receptor-like kinase MtLYK10 participate independently in symbiotic infection.
Article in The Plant journal : for cell and molecular biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 58 citations in OpenAlex.
- Rhizobial Nod factors modulate reactive oxygen species, jasmonates, and pattern-recognizing receptors to suppress immune response.Plant molecular biology · 2026Article
- Molecular mechanisms modulating beneficial plant root-microbe interactions: What's common?Plant communications · 2026Review
- A plant Lysin Motif Receptor-Like Kinase plays an ancestral function in mycorrhiza.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Enacting partner specificity in legume-rhizobia symbioses.aBIOTECH · 2025Review
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- CRISPR/Cas9-Mediated Generation of Mutant Lines inBiology · 2024Article
- Signaling in Legume-Rhizobia Symbiosis.International journal of molecular sciences · 2023Review
- A protease and a lipoprotein jointly modulate the conserved ExoR-ExoS-ChvI signaling pathway critical in Sinorhizobium meliloti for symbiosis with legume hosts.PLoS genetics · 2023Article
- MarR Family Transcriptional Regulators and Their Roles in Plant-Interacting Bacteria.Microorganisms · 2023Review
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- Exploring the role of plant lysin motif receptor-like kinases in regulating plant-microbe interactions in the bioenergy cropComputational and structural biotechnology journal · 2023Article
- Nod factor perception: an integrative view of molecular communication during legume symbiosis.Plant molecular biology · 2022Review
- Pseudogenization of the rhizobium-responsive EXOPOLYSACCHARIDE RECEPTOR in Parasponia is a rare event in nodulating plants.BMC plant biology · 2022Article
- Utilization of Legume-Nodule Bacterial Symbiosis in Phytoremediation of Heavy Metal-Contaminated Soils.Biology · 2022Review
- Identification of a Novel Pyruvyltransferase UsingJournal of bacteriology · 2021Article
- Articulating the exuberant intricacies of bacterial exopolysaccharides to purge environmental pollutants.Heliyon · 2021Review
- Salt Stress Enhances Early Symbiotic Gene Expression inMolecular plant-microbe interactions : MPMI · 2021Article
- Rhizobial Exopolysaccharides: Genetic Regulation of Their Synthesis and Relevance in Symbiosis with Legumes.International journal of molecular sciences · 2021Review
- Perception of lipo-chitooligosaccharides by the bioenergy cropPlant signaling & behavior · 2021Review
- Structure and Development of the Legume-Rhizobial Symbiotic Interface in Infection Threads.Cells · 2021Review
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Authors and funding
9 authors at 5 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
The formation of nitrogen-fixing nodules on legume hosts is a finely tuned process involving many components of both symbiotic partners. Production of the exopolysaccharide succinoglycan by the nitrogen-fixing bacterium Sinorhizobium meliloti 1021 is needed for an effective symbiosis with Medicago spp., and the succinyl modification to this polysaccharide is critical. However, it is not known when succinoglycan intervenes in the symbiotic process, and it is not known whether the plant lysin-motif receptor-like kinase MtLYK10 intervenes in recognition of succinoglycan, as might be inferred from work on the Lotus japonicus MtLYK10 ortholog, LjEPR3. We studied the symbiotic infection phenotypes of S. meliloti mutants deficient in succinoglycan production or producing modified succinoglycan, in wild-type Medicago truncatula plants and in Mtlyk10 mutant plants. On wild-type plants, S. meliloti strains producing no succinoglycan or only unsuccinylated succinoglycan still induced nodule primordia and epidermal infections, but further progression of the symbiotic process was blocked. These S. meliloti mutants induced a more severe infection phenotype on Mtlyk10 mutant plants. Nodulation by succinoglycan-defective strains was achieved by in trans rescue with a Nod factor-deficient S. meliloti mutant. While the Nod factor-deficient strain was always more abundant inside nodules, the succinoglycan-deficient strain was more efficient than the strain producing only unsuccinylated succinoglycan. Together, these data show that succinylated succinoglycan is essential for infection thread formation in M. truncatula, and that MtLYK10 plays an important, but different role in this symbiotic process. These data also suggest that succinoglycan is more important than Nod factors for bacterial survival inside nodules.
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