TY - JOUR
T1 - Contents of cytochromes, quinones and reaction centers of photosystems I and II in a cyanobacterium synechococcus sp.
AU - Aoki, Meiko
AU - Hirano, Masahiko
AU - Takahashi, Yuichiro
AU - Katoh, Sakae
N1 - Funding Information:
The present work was supported in part by the Toray Science and Technolcgy Grant from the Toray Science Foundation and by Grants-in-Aid for Scientific Research from the Ministry of Education, Science and Culture, Japan, to S.K. (56480006, 56112003).
PY - 1983/4
Y1 - 1983/4
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.
KW - Cyanobacterium
KW - Cytochrome c-553
KW - Electron carriers
KW - Photosynthetic electron transport
KW - Reaction center of photosystem I and II
KW - Synechococcus sp
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M3 - Article
AN - SCOPUS:0008644118
VL - 24
SP - 517
EP - 525
JO - Plant and Cell Physiology
JF - Plant and Cell Physiology
SN - 0032-0781
IS - 3
ER -