THE EFFECT OF RED AND FAR RED LIGHT ON CAROTENOID AND CHLOROPHYLL FORMATION IN PEA SEEDLINGS |
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Authors: | JD Henshall TW Goodwin |
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Institution: | Department of Agricultural Biochemistry, University College of Wales Aberystwyth, U.K. |
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Abstract: | Abstract— Treatment of etiolated pea seedlings with a short exposure to red light caused a stimulation of growth (size and dry wt production) and carotenoid synthesis during the following 48 hr compared with seedlings kept entirely in darkness.The effect is nullified by a following dose of far red light and thus the phenomenon is probably phytochrome-controlled. Similar treatment with red light one hour before continuous illumination with white light tended to reduce the lag period for chlorophyll synthesis.Again a following dose of far red light reversed this response. |
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