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The deep evolutionary origins of stomata and stomatal physiology

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If you have a question about this talk, please contact Jill Harrison.

Fossils indicate microscopic stomatal pores created by guard cells arose in land plants over 410 million years ago and offer clues to their biomechanical properties. In this talk I will present a dispatch from the ‘frontline’ on recent developments in our understanding of the molecular genetic toolkits that control stomatal development and regulate guard cell responses to environmental cues in the moss Physcomitrella, as the most basal land plant lineage with stomata. Recent findings provide complementary information to that recovered from fossils on the possible mechanisms early land plants adopted to produce stomata and regulate their aperture responses to changing environmental conditions.

This talk is part of the Plant Sciences Departmental Seminars series.

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