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Image of the Day: Mouth Guards

Grass cell stomata have a set of subsidiary cells flanking their guard cells, allowing the moisture-regulating portals to react more quickly to environmental conditions.

The Scientist Staff

A 3-D model of the stomatal complex (with two guard cells and two subsidiary cells) surrounded by elongated epidermal cellsDOMINIQUE BERGMANN AND MICHAEL RAISSIG

(See M.T. Raissig et al., “Mobile MUTE specifies subsidiary cells to build physiologically improved grass stomata,” Science, doi:10.1126/science.aal3254, 2017.) 

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