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SCREAM in the making of stomata

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.

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Fig. 1: Model for the phosphorylation regulation of SPEECHLESS, a key determinant in the differentiation of stomatal lineage.


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Correspondence to Huachun Larue or Shuqun Zhang.

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Larue, H., Zhang, S. SCREAM in the making of stomata. Nat. Plants 5, 648–649 (2019).

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