Acetate-mediated novel survival strategy against drought in plants
| Autor: | Marina Ando, Sachihiro Matsunaga, Chieko Torii, Miyako Kusano, Fumio Matsuda, Motoaki Seki, Takuya Sakamoto, Taiko Kim To, Jong Myong Kim, Yumiko Takebayashi, Takaho A. Endo, Taeko Morosawa, Atsushi Fukushima, Kanako Kawaura, Maho Tanaka, Yasunari Ogihara, Kazuki Saito, Junko Ishida, Yoshiki Habu, Keitaro Tanoi, Kazuo Shinozaki, Takashi Kuromori, Alessandra Devoto, Hitoshi Sakakibara, Sultana Rasheed, Natsuko I. Kobayashi, Akihiro Matsui, Hiroko Takeda, Daisuke Ogawa, Khurram Bashir |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Acclimatization Drought tolerance Arabidopsis Plant Science Cyclopentanes Acetates 01 natural sciences Histone Deacetylases Epigenesis Genetic Histone H4 03 medical and health sciences Botany Glycolysis Epigenetics Jasmonate Oxylipins biology Arabidopsis Proteins fungi food and beverages biology.organism_classification Plants Genetically Modified Aldehyde Oxidoreductases Chromatin Cell biology Droughts 030104 developmental biology Acetylation Pyruvate Decarboxylase 010606 plant biology & botany Protein Binding Signal Transduction |
| Zdroj: | SC30201810100034 NARO成果DBd |
| ISSN: | 2055-0278 |
| DOI: | 10.1038/nplants.2017.97 |
| Popis: | Water deficit caused by global climate changes seriously endangers the survival of organisms and crop productivity, and increases environmental deterioration1,2. Plants' resistance to drought involves global reprogramming of transcription, cellular metabolism, hormone signalling and chromatin modification3-8. However, how these regulatory responses are coordinated via the various pathways, and the underlying mechanisms, are largely unknown. Herein, we report an essential drought-responsive network in which plants trigger a dynamic metabolic flux conversion from glycolysis into acetate synthesis to stimulate the jasmonate (JA) signalling pathway to confer drought tolerance. In Arabidopsis, the ON/OFF switching of this whole network is directly dependent on histone deacetylase HDA6. In addition, exogenous acetic acid promotes de novo JA synthesis and enrichment of histone H4 acetylation, which influences the priming of the JA signalling pathway for plant drought tolerance. This novel acetate function is evolutionarily conserved as a survival strategy against environmental changes in plants. Furthermore, the external application of acetic acid successfully enhanced the drought tolerance in Arabidopsis, rapeseed, maize, rice and wheat plants. Our findings highlight a radically new survival strategy that exploits an epigenetic switch of metabolic flux conversion and hormone signalling by which plants adapt to drought. |
| Databáze: | OpenAIRE |
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