Reference - Detail
| RRC ID | 52758 |
|---|---|
| Author | Tatsukami Y, Ueda M. |
| Title | Rhizobial gibberellin negatively regulates host nodule number. |
| Journal | Sci Rep |
| Abstract |
In legume-rhizobia symbiosis, the nodule number is controlled to ensure optimal growth of the host. In Lotus japonicus, the nodule number has been considered to be tightly regulated by host-derived phytohormones and glycopeptides. However, we have discovered a symbiont-derived phytohormonal regulation of nodule number in Mesorhizobium loti. In this study, we found that M. loti synthesized gibberellic acid (GA) under symbiosis. Hosts inoculated with a GA-synthesis-deficient M. loti mutant formed more nodules than those inoculated with the wild-type form at four weeks post inoculation, indicating that GA from already-incorporated rhizobia prevents new nodule formation. Interestingly, the genes for GA synthesis are only found in rhizobial species that inhabit determinate nodules. Our findings suggest that the already-incorporated rhizobia perform GA-associated negative regulation of nodule number to prevent delayed infection by other rhizobia. |
| Volume | 6 |
| Pages | 27998 |
| Published | 2016-6-16 |
| DOI | 10.1038/srep27998 |
| PII | srep27998 |
| PMID | 27307029 |
| PMC | PMC4910070 |
| MeSH | Fabaceae / drug effects Fabaceae / microbiology Fabaceae / physiology* Gibberellins / pharmacology* Mesorhizobium / physiology* Root Nodules, Plant / drug effects Root Nodules, Plant / microbiology Root Nodules, Plant / physiology* Symbiosis* |
| IF | 3.998 |
| Times Cited | 21 |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | X(Twitter) |
| Total number of mentions | 4 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| Lotus / Glycine | MG-20 Miyakojima |