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Article

A guard cell carbonic anhydrase binds and regulates SLAC1 separate from its catalytic activity.

Nature communications - 13 Mar 2026

Xia Lingfeng, Alvim Jonas Chaves, Nguyen Thanh-Hao, Lefoulon Cecile, Silva-Alvim Fernanda A L, Yu Zhiyi, Klejchova Martina, Farami Sahar, Waghmare Sakharam, Karnik Rucha, Blatt Michael R

Abstract excerpt

Stomata of plant leaves open to enable CO2 entry for photosynthesis and close when CO2 in the leaf is elevated. CO2 is thought to promote stomatal closure in part by activating the SLAC1 anion channel at the guard cell plasma membrane. Carbonic anhydrases (CAs) contribute to this activation, but their contribution as distinct from CO2-H2CO3 catalysis remains controversial. Here we show that the β-carbonic...

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Arabidopsis
Arabidopsis Proteins
Carbon Dioxide
Carbonic Anhydrases
Kinetics

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PMID: 41826311
DOI: 10.1038/s41467-026-70596-9
PMCID: PMC13128974

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CA4

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 1 Sept 2026.

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A guard cell carbonic anhydrase binds and regulates SLAC1 separate from its catalytic activity.PMID 41826311Read ↗

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