Abstract
Abstract An attempt is reported to link changes in thylakoid lipid composition with the electron-transport and ATP-formation capability of the chloroplast. The observation that the monogalactolipid : phosphatid-ratio (MGDG/PL) of leaf sections shows a linear correlation with the P/2e value of simultaneously isolated Jensen-Bassham plastids was followed up experimentally for an in vitro plastid system. Lipid composition in these experiments was changed by illuminating the suspension with white light. The result shows, that similar dependencies can be obtained with both Jensen-Bassham chloroplasts and, up to a certain degree, chloroplast membrane fragments.
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