Department of Food Science and Technology, University of Hawaii, Honolulu, Hawaii 96822.
Plant Physiol. 1976 Jun;57(6):939-40. doi: 10.1104/pp.57.6.939.
Grana and stroma lamellae fractions prepared from illuminated chloroplasts (Lactuca sativa L. var. Manoa) by French press treatment contained less violaxanthin and more zeaxanthin than the corresponding fractions from dark controls. In both fractions, only part of the total violaxanthin was de-epoxidized under illumination, and the ratio of de-epoxidized and unchanged violaxanthin was similar. This not only shows that the de-epoxidation system is present in both grana and stroma thylakoids but also that violaxanthin is heterogeneous in both membranes. The presence and similarity of the de-epoxidation system in grana and stroma lamellae suggest that the function of the violaxanthin cycle is linked to photosynthetic activities which are common to both types of membranes.
由法国压榨处理从光照叶绿体（生菜 L. var. 马诺阿）制备的基质片层和基粒片层级分比相应的暗对照级分含有更少的玉米黄质和更多的玉米黄质。在这两个级分中，只有总玉米黄质的一部分在光照下发生脱环氧化，并且脱环氧化和未改变的玉米黄质的比例相似。这不仅表明脱环氧化系统存在于基粒和基质类囊体中，而且玉米黄质在两个膜中是不均匀的。基粒和基质片层中脱环氧化系统的存在和相似性表明，玉米黄质循环的功能与两种膜共有的光合作用活动有关。
