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Importance of Fluctuations in Light on Plant Photosynthetic Acclimation

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The acclimation of plants to light has been studied extensively, yet little is known about the effect of dynamic fluctuations in light on plant phenotype and acclimatory responses. We mimicked natural fluctuations in light over a diurnal period to examine the effect on photosynthetic processes and stomatal behaviour of Arabidopsis (Arabidopsis thaliana). High and low light intensities, delivered via a realistic dynamic fluctuating or square wave pattern, were used to grow and assess plants. Our findings revealed new acclimation processes and highlight the importance of considering fluctuations in incident light in future experiments that aim to infer plant productivity under natural conditions in the field.

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

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