CLE9 peptide-induced stomatal closure is mediated by abscisic acid, hydrogen peroxide, and nitric oxide in arabidopsis thaliana

L. Zhang, X. Shi, Y. Zhang, J. Wang, J. Yang, T. Ishida, W. Jiang, X. Han, J. Kang, X. Wang, L. Pan, S. Lv, B. Cao, Y. Zhang, J. Wu, H. Han, Z. Hu, L. Cui, S. Sawa, J. He, G. Wang, Plant Cell and Environment (2018).


Journal Article | Epub ahead of print | English

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Author
Zhang, Luosha; Shi, Xiong; Zhang, Yutao; Wang, Jiajing; Yang, Jingwei; Ishida, Takashi; Jiang, Wenqian; Han, Xiangyu; Kang, Jingke; Wang, Xuening; Pan, Lixia; Lv, Shuo
All
Department
Abstract
CLE peptides have been implicated in various developmental processes of plants and mediate their responses to environmental stimuli. However, the biological relevance of most CLE genes remains to be functionally characterized. Here, we report that CLE9, which is expressed in stomata, acts as an essential regulator in the induction of stomatal closure. Exogenous application of CLE9 peptides or overexpression of CLE9 effectively led to stomatal closure and enhanced drought tolerance, whereas CLE9 loss-of-function mutants were sensitivity to drought stress. CLE9-induced stomatal closure was impaired in abscisic acid (ABA)-deficient mutants, indicating that ABA is required for CLE9-medaited guard cell signalling. We further deciphered that two guard cell ABA-signalling components, OST1 and SLAC1, were responsible for CLE9-induced stomatal closure. MPK3 and MPK6 were activated by the CLE9 peptide, and CLE9 peptides failed to close stomata in mpk3 and mpk6 mutants. In addition, CLE9 peptides stimulated the induction of hydrogen peroxide (H2O2) and nitric oxide (NO) synthesis associated with stomatal closure, which was abolished in the NADPH oxidase-deficient mutants or nitric reductase mutants, respectively. Collectively, our results reveal a novel ABA-dependent function of CLE9 in the regulation of stomatal apertures, thereby suggesting a potential role of CLE9 in the stress acclimatization of plants.
Publishing Year
Date Published
2018-10-31
Journal Title
Plant Cell and Environment
ISSN
IST-REx-ID

Cite this

Zhang L, Shi X, Zhang Y, et al. CLE9 peptide-induced stomatal closure is mediated by abscisic acid, hydrogen peroxide, and nitric oxide in arabidopsis thaliana. Plant Cell and Environment. 2018. doi:10.1111/pce.13475
Zhang, L., Shi, X., Zhang, Y., Wang, J., Yang, J., Ishida, T., … Wang, G. (2018). CLE9 peptide-induced stomatal closure is mediated by abscisic acid, hydrogen peroxide, and nitric oxide in arabidopsis thaliana. Plant Cell and Environment. https://doi.org/10.1111/pce.13475
Zhang, Luosha, Xiong Shi, Yutao Zhang, Jiajing Wang, Jingwei Yang, Takashi Ishida, Wenqian Jiang, et al. “CLE9 Peptide-Induced Stomatal Closure Is Mediated by Abscisic Acid, Hydrogen Peroxide, and Nitric Oxide in Arabidopsis Thaliana.” Plant Cell and Environment, 2018. https://doi.org/10.1111/pce.13475.
L. Zhang et al., “CLE9 peptide-induced stomatal closure is mediated by abscisic acid, hydrogen peroxide, and nitric oxide in arabidopsis thaliana,” Plant Cell and Environment, 2018.
Zhang L, Shi X, Zhang Y, Wang J, Yang J, Ishida T, Jiang W, Han X, Kang J, Wang X, Pan L, Lv S, Cao B, Zhang Y, Wu J, Han H, Hu Z, Cui L, Sawa S, He J, Wang G. 2018. CLE9 peptide-induced stomatal closure is mediated by abscisic acid, hydrogen peroxide, and nitric oxide in arabidopsis thaliana. Plant Cell and Environment.
Zhang, Luosha, et al. “CLE9 Peptide-Induced Stomatal Closure Is Mediated by Abscisic Acid, Hydrogen Peroxide, and Nitric Oxide in Arabidopsis Thaliana.” Plant Cell and Environment, Wiley, 2018, doi:10.1111/pce.13475.
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PMID: 30378140
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