Contents of cytochromes, quinones and reaction centers of photosystems I and II in a cyanobacterium synechococcus sp.

Meiko Aoki; Masahiko Hirano; Yuichiro Takahashi; Sakae Katoh

Contents of cytochromes, quinones and reaction centers of photosystems I and II in a cyanobacterium synechococcus sp.

Meiko Aoki, Masahiko Hirano, Yuichiro Takahashi, Sakae Katoh

Research output: Contribution to journal › Article

Abstract

The contents of photosystem I and photosystem II reaction centers, cytochrome c-553, cytochrome c-550, cytochrome f, cytochrome b-559, cytochrome b-563, plastoquinone and vitamin K₁ in the cyanobacterium Synechococcus sp. were determined. About three photosystem I reaction centers were present for each photosystem II reaction center. The amounts of cytochromes functioning between the two photosystems were approximately half those of the photosystem I reaction center. Plastocyanin was not detected, while plastoquinone and vitamin K₁ were present in excess of other electron carriers and reaction centers. The results indicate the importance of plastoquinone and cytochrome c-553 for cooperation of the two reaction centers through electron transport.

Original language	English
Pages (from-to)	517-525
Number of pages	9
Journal	Plant and Cell Physiology
Volume	24
Issue number	3
Publication status	Published - Apr 1 1983
Externally published	Yes

Keywords

Cyanobacterium
Cytochrome c-553
Electron carriers
Photosynthetic electron transport
Reaction center of photosystem I and II
Synechococcus sp

ASJC Scopus subject areas

Physiology
Plant Science
Cell Biology

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Aoki, M., Hirano, M., Takahashi, Y., & Katoh, S. (1983). Contents of cytochromes, quinones and reaction centers of photosystems I and II in a cyanobacterium synechococcus sp. Plant and Cell Physiology, 24(3), 517-525.

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abstract = "The contents of photosystem I and photosystem II reaction centers, cytochrome c-553, cytochrome c-550, cytochrome f, cytochrome b-559, cytochrome b-563, plastoquinone and vitamin K1 in the cyanobacterium Synechococcus sp. were determined. About three photosystem I reaction centers were present for each photosystem II reaction center. The amounts of cytochromes functioning between the two photosystems were approximately half those of the photosystem I reaction center. Plastocyanin was not detected, while plastoquinone and vitamin K1 were present in excess of other electron carriers and reaction centers. The results indicate the importance of plastoquinone and cytochrome c-553 for cooperation of the two reaction centers through electron transport.",

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AU - Aoki, Meiko

AU - Hirano, Masahiko

AU - Takahashi, Yuichiro

AU - Katoh, Sakae

PY - 1983/4/1

Y1 - 1983/4/1

N2 - The contents of photosystem I and photosystem II reaction centers, cytochrome c-553, cytochrome c-550, cytochrome f, cytochrome b-559, cytochrome b-563, plastoquinone and vitamin K1 in the cyanobacterium Synechococcus sp. were determined. About three photosystem I reaction centers were present for each photosystem II reaction center. The amounts of cytochromes functioning between the two photosystems were approximately half those of the photosystem I reaction center. Plastocyanin was not detected, while plastoquinone and vitamin K1 were present in excess of other electron carriers and reaction centers. The results indicate the importance of plastoquinone and cytochrome c-553 for cooperation of the two reaction centers through electron transport.

AB - The contents of photosystem I and photosystem II reaction centers, cytochrome c-553, cytochrome c-550, cytochrome f, cytochrome b-559, cytochrome b-563, plastoquinone and vitamin K1 in the cyanobacterium Synechococcus sp. were determined. About three photosystem I reaction centers were present for each photosystem II reaction center. The amounts of cytochromes functioning between the two photosystems were approximately half those of the photosystem I reaction center. Plastocyanin was not detected, while plastoquinone and vitamin K1 were present in excess of other electron carriers and reaction centers. The results indicate the importance of plastoquinone and cytochrome c-553 for cooperation of the two reaction centers through electron transport.

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KW - Electron carriers

KW - Photosynthetic electron transport

KW - Reaction center of photosystem I and II

KW - Synechococcus sp

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