Ethylene-induced stomatal closure in Arabidopsis occurs via AtrbohF-mediated hydrogen peroxide synthesis.

By Radhika Desikan, Kathryn Last, Rhian Harrett-Williams, C. Tagliavia, K. Harter, Richard Hooley, J. Hancock, S. Neill. The Plant Journal, 2006

690 citations recorded by the source corpus.

Ethylene is a plant hormone that regulates many aspects of growth and development. Despite the well-known association between ethylene and stress signalling, its effects on stomatal movements are largely unexplored. Here, genetic and physiological data are provided that position ethylene into the Arabidopsis guard cell signalling network, and demonstrate a functional link between ethylene and hydrogen peroxide (H(2)O(2)). In wild-type leaves, ethylene induces stomatal closure that is dependent on H(2)O(2) production in guard cells, generated by the nicotinamide adenine dinucleotide phosphate hydrogen (NADPH) oxidase AtrbohF. Ethylene-induced closure is inhibited by the ethylene antagonists 1-MCP and silver. The ethylene receptor mutants etr1-1 and etr1-3 are insensitive to ethylene in terms of stomatal closure and H(2)O(2) production. Stomata of the ethylene signalling ein2-1 and arr2 mutants do not close in response to either ethylene or H(2)O(2) but do generate H(2)O(2) following ethylene challenge. Thus, the data indicate that ethylene and H(2)O(2) signalling in guard cells are mediated by ETR1 via EIN2 and ARR2-dependent pathway(s), and identify AtrbohF as a key mediator of stomatal responses to ethylene.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/b4080e88d441c2760f71bf1b21b4046dda2423c2

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Citations in the corpus

• Interactions between hormone and redox signalling pathways in the control of growth and cross tolerance to stress (2013, background): “in the etr1-1 mutant, which is hence insensitive to H2O2 (Desikan et al., 2006).”
• Regulation of water, salinity, and cold stress responses by salicylic acid (2014, background): “…by auxin (Irving et al., 1992; Lohse and Hedrich, 1992; Gehring et al., 1998), cytokinin (Jewer and Incoll, 1980; Tanaka et al., 2006), ethylene (Desikan et al., 2006; Tanaka et al., 2006), brassinosteroids (Rajasekaran and Blake, 1999; Haubrick et al., 2006), jasmonate (Gehring et al., 1997;…”
• Hydrogen Peroxide and Plant Stress: A Challenging Relationship (2007, background): “2005; Carol and Dolan 2006), abscisic acid (ABA) induced Ca-channel activation in guard cells (Kwak et al. 2003; Desikan et al. 2004; Bright et al. 2006; Desikan et al. 2006), and activation of a mitogen-activated protein kinase (MAPK) cascade (Desikan et al.”
• Phytohormones and their metabolic engineering for abiotic stress tolerance in crop plants (2016, neutral): “[106] provided evidence that stomatal closure by ethylene is regulated via its signal transduction pathway, which both stimulates production and requires H2O2 synthesis.”
• Interplay between reactive oxygen species and hormones in the control of plant development and stress tolerance. (2015, background): “ET induces stomatal closure via H2O2 produced by RbohF in Arabidopsis (Desikan et al., 2006).”
• Recent methods of drought stress tolerance in plants (2017, background): “Ethylene induces stomatal closure through production of H2O2 in guard cell (Desikan et al. 2006).”
• Comprehending crystalline β-carotene accumulation by comparing engineered cell models and the natural carotenoid-rich system of citrus (2011, neutral): “The known functions of AtrbohD and AtrbohF include ABA-, methyl jasmonate-, and ethylene-regulated guard cell closure (Kwak et al., 2003; Suhita et al., 2004; Desikan et al., 2006).”