Brinckmann E, Lüttge U
Botanisches Institut der Technischen Hochschule, D-6100, Darmstadt, Federal Republic of Germany.
Planta. 1974 Mar;119(1):47-57. doi: 10.1007/BF00390821.
Light-triggered transient oscillations of the membrane potential are recorded with glass micro-electrodes in mesophyll cells of Oenothera. These transients are absent in leaf samples prepared from variegated plastome mutants of Oenothera, in which all cells have a genetically impaired photosystem I or photosystem II. This suggests that co-operation between the two photosystems is responsible for the induction of the transients. Transients are observed in mutated cells when the illuminated leaf sample also comprises normally green cells and there is a symplasmatic connection between the two types of cells. This phenomenon of electric coupling between neighbouring cells is discussed in view of the concept of symplasmatic transport.
用玻璃微电极在月见草叶肉细胞中记录到光触发的膜电位瞬态振荡。在从月见草叶绿体基因组突变体制备的叶片样品中不存在这些瞬态，在这些突变体中所有细胞的光系统I或光系统II在遗传上受损。这表明两个光系统之间的协作是瞬态诱导的原因。当光照的叶片样品还包含正常绿色细胞且两种细胞类型之间存在共质体连接时，在突变细胞中观察到瞬态。根据共质体运输的概念讨论了相邻细胞之间的这种电耦合现象。
