The Nicotiana attenuata LECTIN RECEPTOR KINASE 1 is involved in the perception of insect feeding |
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Authors: | Gustavo Bonaventure |
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Institution: | Max Planck Institute of Chemical Ecology; Department of Molecular Ecology; Jena, Germany |
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Abstract: | The Nicotiana attenuata LECTIN RECEPTOR KINASE 1 (LecRK1) has been recently identified as a component of the mechanism used by plants to suppress the Manduca sexta-triggered accumulation of salicylic acid (SA). The suppression of the SA burst by LecRK1 allows for the unfettered induction of jasmonic acid (JA)-mediated defense responses against M. sexta herbivory. LecRK1 contains a multi-domain extracellular region composed of a G-type Lectin domain and a PAN-AP domain separated by a variable sequence with low similarity to an EGF domain. The LecRK1 intracellular region is composed of a single domain structure with predicted Ser/Thr protein kinase activity. The multi-domain structure of the extracellular region of LecRK1 adds a level of complexity in terms of the potential ligands that this receptor protein could recognize. |
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Keywords: | defense responses insect elicitor jasmonic acid lectin receptor kinase plant-insect interactions salicylic acid |
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