Yoda Would Be Proud: Valves for Land Plants

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Science  04 Jun 2004:
Vol. 304, Issue 5676, pp. 1461-1462
DOI: 10.1126/science.1099445

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Stomata are structures in the plant epidermis that control the exchange of gases between the plant and its environment. In his Perspective, Sack discusses new work ( Bergmann et al.) that identifies the kinase YODA as a key regulator of the formation of stomata in the model plant Arabidopsis.