Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 107, Issue 5, Pages 2343-2348Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.0913320107
Keywords
nodule; receptor-like kinase; signaling; symbiosis; scaffolding protein
Categories
Funding
- Marie-Curie Intra-European Fellowship [024587]
- French Agence National de la Recherche [ANR-05-BLAN-0243-01]
- European Community's Sixth Framework Programme [MRTN-CT-2006-035546]
- German Academic exchange service
- German Research Council (DFG) [OT 423/1-1]
- BBSRC [BB/G023832/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/G023832/1] Funding Source: researchfish
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Remorin proteins have been hypothesized to play important roles during cellular signal transduction processes. Induction of some members of this multigene family has been reported during biotic interactions. However, no roles during host-bacteria interactions have been assigned to remorin proteins until now. We used root nodule symbiosis between Medicago truncatula and Sinorhizobium meliloti to study the roles of a remorin that is specifically induced during nodulation. Here we show that this oligomeric remorin protein attaches to the host plasma membrane surrounding the bacteria and controls infection and release of rhizobia into the host cytoplasm. It interacts with the core set of symbiotic receptors that are essential for perception of bacterial signaling molecules, and thus might represent a plant-specific scaffolding protein.
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