Changes of Photosystem Stoichiometry during Cell Growth in Dunaliella salina Cultures
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概要
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The photosystem stoichiometry in Dunaliella salina thylakoids was measured during cell growth in a fully contained culture. In dilute cultures, obtained after inoculation of cells into fresh growth medium, the PS II/PS I stoichiometry was about 2.2/1.O. This ratio was gradually lowered to about 1.2/1.0 in mature cultures. The decrease of the PS II/PS I ratio is discussed in terms of increasing self-shading in the culture and increasing pH in the growth medium. Changes in the pH occurred from 7.7 in young cultures to 8:9 in mature ones and caused a significant depletion of soluble CO_2 from the growth medium. A correlation of the CO_2/HCO^<3->, ratio in the growth medium with the PS II/PS I ratio in the thylakoid membrane is presented.
- 日本植物生理学会の論文
著者
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Melis Anastasios
Department Of Plant Biology 411 Genetics & Plant Biology Building University Of Callfornia
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Melis Anastasios
Department Of Plant & Microbial Biology University Of California
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Naus Jan
Department of Plant Biology, 411 Genetics & Plant Biology Building, University of Callfornia
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Naus Jan
Department Of Plant Biology 411 Genetics & Plant Biology Building University Of Callfornia:(perm
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