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Curr Opin Plant Biol. 2011 Dec;14(6):632-41. doi: 10.1016/j.pbi.2011.09.001. Epub 2011 Sep 29.

THESEUS 1, FERONIA and relatives: a family of cell wall-sensing receptor kinases?

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Department of Biochemistry and Molecular Biology, University of Massachusetts, Lederle Graduate Research Tower, Amherst, MA 01003, United States.


The plant cell wall provides form and integrity to the cell as well as a dynamic interface between a cell and its environment. Therefore mechanisms capable of policing changes in the cell wall, signaling cellular responses including those that would feedback regulate cell wall properties are expected to play important roles in facilitating growth and ensuring survival. Discoveries in the last few years that the Arabidopsis THESEUS 1 receptor-like kinase (RLK) may function as a sensor for cell wall defects to regulate growth and that its relatives FERONIA and ANXURs regulate pollen tube integrity imply strongly that they play key roles in cell wall-related processes. Furthermore, FERONIA acts as a cell surface regulator for RAC/ROP GTPases and activates production of reactive oxygen species which are, respectively, important molecular switches and mediators for diverse processes. These findings position the THESEUS 1/FERONIA family RLKs as surface regulators and potential cell wall sensors capable of broadly and profoundly impacting cellular pathways in response to diverse signals.

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