Stomata

Stomata are minute openings found in the epidermis of leaves, stems and other plant organs. Stomata allow gases such as carbon dioxide, water vapour and oxygen to diffuse into and out of the internal tissues of the plant.

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  • News and Views |

    Receptor-mediated regulation of SPEECHLESS by a MAP kinase cascade coordinates cell fate specification during stomatal development. SCREAM functions as a scaffold to bring SPEECHLESS in proximity with MPK3/MPK6, thereby allowing its down-regulation to inhibit stomatal cell fate.

    • Huachun Larue
    •  & Shuqun Zhang
    Nature Plants 5, 648-649
  • News and Views |

    The specialized photosynthesis adopted by drought-resilient crassulacean acid metabolism plants has inverted the diel stomatal opening behaviour of their ancestral C3 plants. This was achieved via large-scale reprogramming of expression of the signal transduction machinery and a coordinate shift in the cellular redox poise.

    • Alisdair R. Fernie
    Nature Plants 2, 16190
  • News and Views |

    Rising atmospheric CO2 is expected to boost crop yields during drought events because it promotes stomatal closure and saves water. However, field experiments with soybean in a simulated future CO2 atmosphere suggest that crop canopy interactions with climate might prevent this mechanism from delivering its expected benefits.

    • Colin P. Osborne
    Nature Plants 2, 16138