PHOTOCHEMICAL ACTIVITIES OF SONICATED LAMELLAE OF SPINACH CHLOROPLASTS WITH SPECIAL REFERENCE TO THE ACTION OF CRS (CYTOCHROME C REDUCING SUBSTANCE)

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概要

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• The photooxidation of reduced DPIP with NADP and O_2 as final electron acceptors was studied with sonicated lamellae of spinach chloroplasts, with special reference to the possible role of CRS, a newly discovered factor of photochemical system I. A correlation between inactivation of NADP-photoreduction and dissolution of CRS was observed on treatment of the lamellae with various organic solvents. The treatment also suppressed the O_2-linked photooxidation of reduced DPIP, although the suppression was not so marked as in the former reaction. The suppressed photooxidation of reduced DPIP (with O_2 and NADP as electron acceptors) was partially restored on addition of dyes of negative redox potential, such as methyl viologen. The experimental results indicate that a factor participates in the reactions of photo-chemical system I, probably functioning as an electron carrier coupling the photooxidation of P 700 with the reduction of ferredoxin or O_2. The finding that the above mentioned activity of the factor is destroyed by treatments which are effective in solubilizing CRS from the chloroplasts suggests the identity of the factor with CRS.

• 日本植物生理学会の論文

著者

• Fujita Yoshihiko

  Institute Of Applied Microbiology University Of Tokyo

• Murano Fumio

  Institute Of Applied Microbiology University Of Tokyo:(present)nomura Research Institute For Technol

• Murano Fumio

  Institute Of Applied Microbiology University Of Tokyo:(present)nomura Research Institute Of Technolo

• Fujita Yoshihiko

  Institulte Of Applied Microbiology University Of Tokyo

• FUJITA YOSHIHIKO

  Institute of Applied Microbiology, University of Tokyo

関連論文

• HYDROGENASE ACTIVITY OF CELL-FREE PREPARATION OBTAINED FROM THE BLUE-GREEN ALGA, ANABAENA CYLINDRICA
• FORMATION OF PHYCOERYTHRIN IN PRE-ILLUMINATED CELLS OF TOLYPOTHRIX TENUIS WITH SPECIAL REFERENCE TO NITROGEN METABOLISM
• COMPARATIVE STUDIES OF PHOTOCHEMICAL OXIDATION-REDUCTION REACTIONS IN LAMELLAR FRAGMENTS OF VARIOUS ALGAE AND SPINACH
• PHOTOCHEMICAL INTERCONVERSION BETWEEN PRECURSORS OF PHYCOBILIN CHROMOPROTEIDS IN TOLYPOTHRIX TENUIS
• PHOTOCHEMICAL ACTIVITIES OF SONICATED LAMELLAE OF SPINACH CHLOROPLASTS WITH SPECIAL REFERENCE TO THE ACTION OF CRS (CYTOCHROME C REDUCING SUBSTANCE)
• EFFECT OF CHROMATIC LIGHTS ON PHYCOBILIN FORMATION IN A BLUE-GREEN ALGA,TOLYPOTHRIX TENUIS

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