Light-Harvesting for Photosynthesis in Four Strains of the Red Alga Porphyra yezoensis Having Different Phycobilin Contents
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概要
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The light-harvesting system of photosynthesis was studied in four strains of Porphyra yezoensis differing in their phycoerythrin (PE) content; the red strain, richer in PE than the wild strain, and the green and the yellow strains, poorer in PE. Special attention was given to possible alteration of pigment system in response to PE content, especially in the green and the yellow strains. The relative quantum yields of Chl a fluorescence at -196℃ and O_2 evolution were compared. Four strains commonly showed a low yield in pigment system II (PS II) fluorescence on Chl a excitation. The yield was as low as in those algae in which PS II has only a small portion of Chl a as the light harvester. Measurement of O_2 evolution gave the same results. Results indicate that the functional composition of Chl a system remains unaltered in four strains with different PE content. PS II in the green and the yellow strains reflects a reduction in the size of light-harvesting components, suggesting that pigmentation in these strains is fixed genetically as a sun-type.
- 日本植物生理学会の論文
著者
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Aruga Yusho
Tokyo University Of Fisheries
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Aruga Yusho
Tokyo Univ. Agriculture Tokyo Jpn
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Mimuro Mamoru
National Institute For Basic Biology:ocean Research Institute University Of Tokyo
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Mimuro Mamoru
National Institute For Basic Biology
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Merrill John
Tokyo University of Fisheries
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Fujita Yoshihiko
National Institute for Basic Biology
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Fujita Yoshihiko
National Institute For Basic Biology:ocean Research Institute University Of Tokyo
関連論文
- Light-Harvesting for Photosynthesis in Four Strains of the Red Alga Porphyra yezoensis Having Different Phycobilin Contents
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