There are some vesicles near the cell walls of senescant cells , they do not derive from the plasma membranes sink of normal infected cells , but the disintegration of membrane system of senescant cells 在衰老侵染细胞中，细胞壁附近有小泡，它们可能是由细胞中的膜系统降解而成。
Our results suggested that aba induces h2o2 generation in guard cells under salinity stress and both the plasma membrane and the chloroplasts may be the regions where h2o2 generates 这些结果说明naci胁迫条件下， aba诱导拟南芥保卫细胞中产生h 。 o 。 ，而且质膜和叶绿体可能均是h 。
Aquaporin ( water pore ) a protein channel in the plasma membrane that facilitates water movement across the membrane . aquaporins can open or close to increase or decrease water flow 水通道（水孔） ：位于质膜上的一种蛋白通道，控制水的跨膜运输。它的开或关可以增加或减少水的流量。
While cortical alveoli discharge in batches , the plasma membrane has been reorganized time after time . spermaster " elongate and traction , and cytoplasm " flowage make the male pronucleus and the female pronucleus conjugate ）十物’ i ：他地仰排原核纪合是精人己光扩怅、引和细w质流动儿d 。
The aqueous two - phase partition method is based on weight , when the proportion of the weight of hypocotyls and two - phase partition reached 32 . " 8g , the plasma membrane vesicles of mung bean were purified well 植物材料与两相系统重量之比为32 ： 8g时，用一次两相系统提取、分离，就可获得纯度较高的质膜微囊。
The concentration of bsa in homogenization medium influenced the latency activity of the pm tt - atpase . 0 . 5 % bsa was suitable in our experiment . characteristic properties of the plasma membrane h + - atpase were investigated firstly 提取缓冲液中bsa的浓度对微囊的致密性有很大的影响， 0 . 5 bsa下获得的质膜微囊，有较好的的致密性。
The transport of water across some cell plasma membranes is facilitated by aquaporin ( aqp ) water channels , which are small transmembrane proteins that function as passive conduits for osmotically or hydrostatically - driven water transport 水通道蛋白( aquaporin ， aqp )是一种小分子跨膜蛋白质，其在渗透压和静水压的驱动下能促进水分子跨细胞膜转运。
Previous evidence showed that an increase in [ ca2 + ] cyt has been shown to be an early event in the aba signal transduction pathway , and ca2 + channels at the plasma membrane of stomatal guard cells are activated by hyperpolarization and aba Assmann已提出较为完善的气孔保卫细胞信号转导模式，但是对于aba信号转导的一些中间环节仍是人们不断探讨的问题。
When copper exceeds the cellular needs , it is toxic through the production of highly reactive hydroxyl radicals , that have deleterious effects on cellular components including destabilization of plasma membranes and lysosomal membranes 但是也具有毒性，铜可以与一些脂质，蛋白质和核酸等物质高亲和性地结合，并催化其氧化，所以维持铜浓度在一定的正常范围很重要。
Combined the above results , there existed significant correlation among chlorophyll a fluorescence parameters ( fv / fo , fv / fm , yield , qp , qn and mda contents , plasma membrane permeability in euonymus japonicus " zhuzi " seedlings 叶绿素荧光a参数与mda含量及质膜相对透性的的相关性分析表明，低温胁迫下， ps原初光能转化受抑制程度与膜脂过氧化存在一定的关系。
