Effect of blue light on the photonastic reaction of rice leaves

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概要

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• Effect of blue light on the epinastic reaction of rice plant leaves (Oryza sativa L.) was studied. The inclination angle of intact leaves, when the plants were grown either in the light or in the dark, was greatly increased by blue light irradiation but not much increased by green, yellow, orange, red or white light. The effect of blue light on the epinastic reaction was, however, obscure in excised leaves, especially when they were placed on the horizontal. The photonastic reaction required a prolonged irradiation of high intensity. The photosensitive site localized at the leaf-nodal part. Response spectra for the photonastic reaction were characterized by 2 distinct peaks at 420-440 mμ and 460-480 mμ and a fairly strong response in the near ultra-violet region.

著者

• Inada Katsumi

  Department Of Physiology And Genetics National Institute Of Agricultural Sciences Nishigahara

関連論文

• Effect of blue light on the photonastic reaction of rice leaves

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