Kinetics of the Unrolling of the Second Leaves Detached from Rice Seedlings by Blue Light
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概要
- 論文の詳細を見る
Unrolling due to blue light (B) irradiation of the second leaves detached from 8-day-old rice (Oryza sativa L.) seedlings was similar to that reported previously for non-detached leaves. The effect of B was counteracted by irradiation with red light (R). The counteracting effect of R was reversed by subsequent irradiation with far-red light (FR). When the detached leaf was irradiated with B passed through a 1-mm-wide slit 5, 8, 10, 12 or 15 mm from the leaf tip, irradiation 10 mm from the leaf tip was the most effective. The effect of a 1 mm-wide-B irradiation 10 mm from the leaf tip was counteracted by a 1 mm-wide-R irradiation at the same position, but not by irradiations at the other points. The counteracting effect of R was reversed by a 1 mm-wide-FR irradiation at the same position. This suggests that the excitation or the reaction of the B photoreceptor(s) is affected directly by the P_<FR> form of phytochrome. The dose-response curve for the unrolling caused by B showed a simple Bunsen-Roscoe relation without two peaks, which differs from that for the phototropism in Avena caused by B.
- 日本植物生理学会の論文
著者
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YAMAMOTO Yukio
Laboratory of Toxicology Graduate School of Veterinary Medicine, Hokkaido University
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Niimi Yoshiyuki
Laboratory Of Horticultural Science Faculty Of Agriculture Nagoya University
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Tezuka Takafumi
Laboratory of Horticultural Science, Faculty of Agriculture, Nagoya University
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Tezuka Takafumi
Laboratory Of Horticultural Science Faculty Of Agriculture Nagoya University
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Yamamoto Yukio
Laboratory Of Horticultural Science Faculty Of Agriculture Nagoya University
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