Light Dosage and Phototropic Responses of Corn and Oat Coleoptiles
نویسندگان
چکیده
منابع مشابه
Light Dosage and Phototropic Responses of Corn and Oat Coleoptiles.
For a number of years, it has been assumed that the Bunsen-Roscoe reciprocity law is valid for phototropic curvature (21, 30). This law states that if light intensity and time of exposure are varied in such a way that the product of the two remains constant, the photochemical effect of the light should also remain constant (13). Thus it was thought that if plants were exposed to unilateral ligh...
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Avena seedlings were germinated and grown while continuously rotated on the horizontal axis of a clinostat. The coleoptiles of these gravity-compensated plants were phototropically more responsive than those of plants rotated on a vertical axis. When the plants were compensated after unilateral irradiation, phototropic curvature of the shoot progressed for the next 6 hours, with the rate of cur...
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Unilateral blue light administered to corn coleoptile segments produces no alteration of transmembrane potential on the light side, and only a small and slow hyperpolarization on the dark side. Red light causes a 5-15 millivolt depolarization in cells on the light side causes and somewhat smaller effects on the dark side. Blue given after red causes a rapid hyperpolarization on both sides of th...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1960
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.35.6.951