Laboratory of Plant Physiology and Biophysics, Bower Building, University of Glasgow, Glasgow, G12 8QQ, UK.
Curr Biol. 2016 Feb 8;26(3):R107-9. doi: 10.1016/j.cub.2015.12.025.
Stomata open at the leaf epidermis, driven by solute accumulation in the surrounding guard cells. Transmembrane ion transport has long been recognised to contribute to this process. A new study makes it clear that guard cells also metabolise starch to accelerate opening.
气孔在叶片表皮张开，由周围保卫细胞中溶质的积累驱动。跨膜离子转运长期以来被认为有助于这一过程。一项新的研究清楚地表明，保卫细胞还会代谢淀粉来加速气孔的张开。
