FERONIA receptor kinase interacts with S‐adenosylmethionine synthetase and suppresses S‐adenosylmethionine production and ethylene biosynthesis in Arabidopsis |
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| Authors: | Dandan Mao Feng Yu Jian Li Bram Van de poel Dan Tan Jianglin Li Yanqionq Liu Xiushang Li Mengqiu Dong Liangbi Chen Dongping Li Sheng Luan |
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| Affiliation: | 1. NJU‐NJFU Joint Institute for Plant Molecular Biology, School of Life Sciences, Nanjing University, Nanjing, China;2. College of Life Sciences, Hunan Normal University, Changsha, China;3. Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, China;4. Division of Mechatronics, Biostatistics and Sensors (MeBioS), Department of Biosystems (BIOSYST), KU Leuven, Leuven, Belgium;5. National Institute of Biological Sciences, Beijing, China;6. Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA |
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| Abstract: | Environmental inputs such as stress can modulate plant cell metabolism, but the detailed mechanism remains unclear. We report here that FERONIA (FER), a plasma membrane receptor‐like kinase, may negatively regulate the S‐adenosylmethionine (SAM) synthesis by interacting with two S‐adenosylmethionine synthases (SAM1 and SAM2). SAM participates in ethylene, nicotianamine and polyamine biosynthetic pathways and provides the methyl group for protein and DNA methylation reactions. The Arabidopsis fer mutants contained a higher level of SAM and ethylene in plant tissues and displayed a dwarf phenotype. Such phenotype in the fer mutants was mimicked by over‐expressing the S‐adenosylmethionine synthetase in transgenic plants, whereas sam1/2 double mutant showed an opposite phenotype. We propose that FER receptor kinase, in response to environmental stress and plant hormones such as auxin and BR, interacts with SAM synthases and down‐regulates ethylene biosynthesis. |
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| Keywords: | FER metabolic regulation SAM signal transduction |
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