Action of Near UV and Blue Light on the Photocontrol of Phycobiliprotein Formation : A Complementary Chromatic Adaptation
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概要
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Action of near UV to blue light on photocontrol of phycoerythrin (PE) and phycocyanin (PC) formation was investigated with non-photobleached Tolypothrix tenuis and Fremyella diplosiphon ; this study was done to evaluate the proposition of Haury and Bogorad [(1977) Plant Physiol., 60:835] that near UV to blue light is as effective as green and red light for photocontrol of PE and PC formation in blue-green algae and that lack of the blue effect in previous experiments was due to destruction of blue-absorbing pigment(s) by the photobleaching treatment involved in the experimental method. In our present work, light effect was measured in heterotrophic cultures incubated in darkness following brief exposure to different wavelengths of light. Results indicated that (1) near UV to blue light was not effective for induction of PE formation either in T. tenuis or in F. diplosiphon, and (2) PC formation was induced by near UV light at 360 nm but not by blue light at 460 nm. These features are identical with those previously reported for photobleached cells but not with those reported by Haury and Bogorad for non-photobleached cells. We conclude that photobleaching treatment does not have any influence on the action of near UV to blue light. Action at 390 and 460 nm observed by Haury and Bogorad probably resulted from light effects other than photocontrol, e.g., the action of photosynthesis.
- 日本植物生理学会の論文
著者
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Watanabe Masakatsu
National Institute For Basic Biology
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Ohki Kaori
Ocean Research Institute University Of Tokyo
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Fujita Yoshihiko
Ocean Research Institute University Of Tokyo
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Fujita Yoshihiko
Ocean Research Institute University Of Tokyo:national Institute For Basic Biology
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