Multiple flash activation of the water-photolysis system in intermittently illuminated wheat leaves
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概要
- 論文の詳細を見る
The chloroplasts from wheat leaves greened under intermittent illumination at long intervals (1-msec light+5-min dark) are capable of photoreducing DPIP (2,6-dichlorophenolindophenol) with DPC (diphenylcarbazide) as the electron donor but incapable of photoreducing this Hill oxidant with water as the donor. Exposure of such leaves to flashes at short intervals of the order of a second rapidly induced the water-photolysis activity to reduce DPIP. The activation by single flashes at uniform intervals greatly depended on the interval, and the activity was maximal at an interval of a few seconds. A pair of two flashes given Successively at an interval of a few sconds was strikingly more effectiv than a pair of flashes given simultaneously. This suggested that at least sequential photoevents are involved in the activation of the latent water-photolysis system. Double, triple and multiple flashes at the short intervals gave progressively higher yields of activation per flash. The mechanism of activation is discussed based on these activity data obtained with multiple flashes at various dark intervals.
- 日本植物生理学会の論文
著者
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Inoue Yorinao
Laboratory of Plant Physiology, The Institute of Physical and Chemical Research
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Shibata Kazuo
Laboratory of Plant Physiology, The Institute of Physical and Chemical Research
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Shibata Kazuo
Laboratory Of Plant Physiology The Institute Of Physical And Chemical Research
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Shibata Kazuo
Laboratory Of Plant Physiology Institute Of Physical And Chemical Research (rikagaku Kenkyusho)
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Inoue Yorinao
Laboratory Of Plant Physiology The Institute Of Physical And Chemical Research
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Kobayashi Yoshichika
Laboratory of Plant Physiology, The Institute of Physical and Chemical Research
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Sakamoto Emiko
Laboratory of Plant Physiology, The Institute of Physicai and Chcmical Research (Rikagaku Kenkyusho)
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Kobayashi Yoshichika
Laboratory Of Plant Physiology The Institute Of Physical And Chemical Research
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Kobayashi Yoshichika
Laboratory Of Biophysics Faculty Of Agriculture Kyushu University
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Sakamoto Emiko
Laboratory Of Plant Physiology The Institute Of Physicai And Chcmical Research (rikagaku Kenkyusho)
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