Plant stomata, which consist of paired guard cells placed on the surface of leaves, control gas exchange with the atmosphere. Anion transport by unidentified guard-cell channels closes the stomatal pore and the first component for this channel function has now been found.
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Serna, L. Coming closer to a stoma ion channel. Nat Cell Biol 10, 509–511 (2008). https://doi.org/10.1038/ncb0508-509
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DOI: https://doi.org/10.1038/ncb0508-509
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