A plant receptor-like kinase required for both bacterial and fungal symbiosis

Silke Stracke, Catherine Kistner, Satoko Yoshida, Lonneke Mulder, Shusei Sato, Takakazu Kaneko, Satoshi Tabata, Niels Sandal, Jens Stougaard, Krzysztof Szczyglowski and Martin Parniske ()
Additional contact information
Silke Stracke: The Sainsbury Laboratory, John Innes Centre
Catherine Kistner: The Sainsbury Laboratory, John Innes Centre
Satoko Yoshida: The Sainsbury Laboratory, John Innes Centre
Lonneke Mulder: The Sainsbury Laboratory, John Innes Centre
Shusei Sato: Kazusa DNA Research Institute
Takakazu Kaneko: Kazusa DNA Research Institute
Satoshi Tabata: Kazusa DNA Research Institute
Niels Sandal: Laboratory of Gene Expression, IMSB, University of Aarhus
Jens Stougaard: Laboratory of Gene Expression, IMSB, University of Aarhus
Krzysztof Szczyglowski: Agriculture and Agri-Food Canada, Southern Crop Protection and Food Research Centre
Martin Parniske: The Sainsbury Laboratory, John Innes Centre

Nature, 2002, vol. 417, issue 6892, 959-962

Abstract: Abstract Most higher plant species can enter a root symbiosis with arbuscular mycorrhizal fungi, in which plant carbon is traded for fungal phosphate1,2. This is an ancient symbiosis, which has been detected in fossils of early land plants3. In contrast, the nitrogen-fixing root nodule symbioses of plants with bacteria evolved more recently, and are phylogenetically restricted to the rosid I clade of plants4. Both symbioses rely on partially overlapping genetic programmes5,6. We have identified the molecular basis for this convergence by cloning orthologous SYMRK (‘symbiosis receptor-like kinase’) genes from Lotus and pea, which are required for both fungal and bacterial recognition. SYMRK is predicted to have a signal peptide, an extracellular domain comprising leucine-rich repeats, a transmembrane and an intracellular protein kinase domain. Lotus SYMRK is required for a symbiotic signal transduction pathway leading from the perception of microbial signal molecules to rapid symbiosis-related gene activation. The perception of symbiotic fungi and bacteria is mediated by at least one common signalling component, which could have been recruited during the evolution of root nodule symbioses from the already existing arbuscular mycorrhiza symbiosis.

Date: 2002
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DOI: 10.1038/nature00841

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