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CO2 response screen in grass Brachypodium reveals the key role of a MAP kinase in CO2-triggered stomatal closure.

Plant physiology - 2 Sept 2024

Lopez Bryn N K, Ceciliato Paulo H O, Takahashi Yohei, Rangel Felipe J, Salem Evana A, Kernig Klara, Chow Kelly, Zhang Li, Sidhom Morgana A, Seitz Christian G, Zheng Tingwen, Sibout Richard, Laudencia-Chingcuanco Debbie L, Woods Daniel P, McCammon James Andrew, Vogel John P, Schroeder Julian I

Abstract excerpt

Plants respond to increased CO2 concentrations through stomatal closure, which can contribute to increased water use efficiency. Grasses display faster stomatal responses than eudicots due to dumbbell-shaped guard cells flanked by subsidiary cells working in opposition. However, forward genetic screening for stomatal CO2 signal transduction mutants in grasses has yet to be reported. The grass model Brachypodium...

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Abscisic Acid
Brachypodium
Carbon Dioxide
Mitogen-Activated Protein Kinases

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PMID: 38709683
DOI: 10.1093/plphys/kiae262

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