Cell wall hydroxycinnamate esters as UV-A receptors in phototropic responses of higher plants—a new hypothesis |
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| Authors: | G.H.N. Towers B. Abeysekera |
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| Affiliation: | Department of Botany, University of British Columbia, Vancouver, British Columbia, Canada V6T 2B1 |
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| Abstract: | E/Z Photoisomerism, in UV-A, of cell wall ferulate and diferulate-carbohydrate esters is suggested as a mechanism for transduction of light energy leading to changes in wall structure and hence water flux, turgor pressure and growth. Unilateral light would cause phototropism. |
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| Keywords: | Cell wall ferulate esters UV-A receptors phototropism coleoptiles energy transduction hypothesis. |
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