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Benzoquinone Derivative

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Stephen O Duke – One of the best experts on this subject based on the ideXlab platform.

  • a new photosystem ii electron transfer inhibitor from sorghum bicolor
    Journal of Natural Products, 1998
    Co-Authors: Agnes M. Rimando, Franck E Dayan, Mark A Czarnota, Leslie A Weston, Stephen O Duke

    Abstract:

    Our study of the mechanism(s) by which sorgoleone (1) acts as a photosystem II (PS II) inhibitor led to the isolation of a new Benzoquinone Derivative, 2-hydroxy-5-ethoxy-3-[(Z,Z)-8‘,11‘,14‘-pentadecatriene]-ρ-Benzoquinone (2), from the root exudate of sorghum. The structure of 2, which is being given the name 5-ethoxy-sorgoleone, was determined by spectroscopic means. A methoxy Derivative (3) of 1 was also prepared. Both 2 and 3 caused a reduction in oxygen evolution by thylakoid membranes and induced variable chlorophyll fluorescence. These compounds, however, were less active inhibitors of PS II than 1.

  • A New Photosystem II Electron Transfer Inhibitor from Sorghum bicolor
    Journal of Natural Products, 1998
    Co-Authors: Agnes M. Rimando, Franck E Dayan, Mark A Czarnota, Leslie A Weston, Stephen O Duke

    Abstract:

    Our study of the mechanism(s) by which sorgoleone (1) acts as a photosystem II (PS II) inhibitor led to the isolation of a new Benzoquinone Derivative, 2-hydroxy-5-ethoxy-3-[(Z,Z)-8‘,11‘,14‘-pentad…

Agnes M. Rimando – One of the best experts on this subject based on the ideXlab platform.

  • a new photosystem ii electron transfer inhibitor from sorghum bicolor
    Journal of Natural Products, 1998
    Co-Authors: Agnes M. Rimando, Franck E Dayan, Mark A Czarnota, Leslie A Weston, Stephen O Duke

    Abstract:

    Our study of the mechanism(s) by which sorgoleone (1) acts as a photosystem II (PS II) inhibitor led to the isolation of a new Benzoquinone Derivative, 2-hydroxy-5-ethoxy-3-[(Z,Z)-8‘,11‘,14‘-pentadecatriene]-ρ-Benzoquinone (2), from the root exudate of sorghum. The structure of 2, which is being given the name 5-ethoxy-sorgoleone, was determined by spectroscopic means. A methoxy Derivative (3) of 1 was also prepared. Both 2 and 3 caused a reduction in oxygen evolution by thylakoid membranes and induced variable chlorophyll fluorescence. These compounds, however, were less active inhibitors of PS II than 1.

  • A New Photosystem II Electron Transfer Inhibitor from Sorghum bicolor
    Journal of Natural Products, 1998
    Co-Authors: Agnes M. Rimando, Franck E Dayan, Mark A Czarnota, Leslie A Weston, Stephen O Duke

    Abstract:

    Our study of the mechanism(s) by which sorgoleone (1) acts as a photosystem II (PS II) inhibitor led to the isolation of a new Benzoquinone Derivative, 2-hydroxy-5-ethoxy-3-[(Z,Z)-8‘,11‘,14‘-pentad…

Franck E Dayan – One of the best experts on this subject based on the ideXlab platform.

  • a new photosystem ii electron transfer inhibitor from sorghum bicolor
    Journal of Natural Products, 1998
    Co-Authors: Agnes M. Rimando, Franck E Dayan, Mark A Czarnota, Leslie A Weston, Stephen O Duke

    Abstract:

    Our study of the mechanism(s) by which sorgoleone (1) acts as a photosystem II (PS II) inhibitor led to the isolation of a new Benzoquinone Derivative, 2-hydroxy-5-ethoxy-3-[(Z,Z)-8‘,11‘,14‘-pentadecatriene]-ρ-Benzoquinone (2), from the root exudate of sorghum. The structure of 2, which is being given the name 5-ethoxy-sorgoleone, was determined by spectroscopic means. A methoxy Derivative (3) of 1 was also prepared. Both 2 and 3 caused a reduction in oxygen evolution by thylakoid membranes and induced variable chlorophyll fluorescence. These compounds, however, were less active inhibitors of PS II than 1.

  • A New Photosystem II Electron Transfer Inhibitor from Sorghum bicolor
    Journal of Natural Products, 1998
    Co-Authors: Agnes M. Rimando, Franck E Dayan, Mark A Czarnota, Leslie A Weston, Stephen O Duke

    Abstract:

    Our study of the mechanism(s) by which sorgoleone (1) acts as a photosystem II (PS II) inhibitor led to the isolation of a new Benzoquinone Derivative, 2-hydroxy-5-ethoxy-3-[(Z,Z)-8‘,11‘,14‘-pentad…