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当前位置: 首页 > 文章 > 外源乙烯对草莓果实微粒体Ca~(2+)-ATPase活性和膜脂过氧化的调节 园艺学报 2004,31 (2) 227-229
Position: Home > Articles > Regulation of Exogenous Ethylene on Ca~(2+)-ATPase Activity and Lipid Perox-idation of Microsomal Membrane in Strawberry Fruits Acta Horticulturae Sinica 2004,31 (2) 227-229

外源乙烯对草莓果实微粒体Ca~(2+)-ATPase活性和膜脂过氧化的调节

作  者：
樊秀彩;关军锋;刘崇怀;张继澍;李广敏
单  位：
中国农业科学院郑州果树研究所;西北农林科技大学生命科学学院;河北省农林科学院遗传生理研究所
关键词：
草莓;乙烯;钙信使系统;果实;膜;Ca2+-ATPase;膜脂过氧化
摘  要：
以乳白期‘春星’草莓(Fragaria ananassa Duch.‘Chunxing’)果实为试材,研究了经钙调素(CaM)拮抗剂三氟拉嗪(TFP)、氯丙嗪(CPZ)各100μmol·L-1和钙通道阻塞剂异博定(Verapamil)100μmol·L-1预处理后再用乙烯(50μL·L-1)处理的草莓果实中微粒体Ca2+-ATP酶活性、O2·-产生速率和MDA含量的变化。结果表明,外源乙烯对微粒体膜O2·-产生速率无显著影响,处理早期提高微粒体膜Ca2+-ATPase总活性,对MDA含量影响不大;后期加速微粒体膜Ca2+-ATPase总活性下降,但仍保持较高的MDA含量和线粒体膜Ca2+-ATPase活性。CPZ、TFP和Verapamil预处理降低了上述乙烯处理下Ca2+-ATPase活性和MDA含量,但对微粒体膜O2·-产生速率亦无显著影响,这说明细胞内Ca2+和CaM可能参与了乙烯诱导的膜Ca2+-ATP酶活性与膜脂过氧化水平的调节。
译  名：
Regulation of Exogenous Ethylene on Ca~(2+)-ATPase Activity and Lipid Perox-idation of Microsomal Membrane in Strawberry Fruits
作  者：
Fan Xiucai, Guan Junfeng , Liu Chonghuai , Zhang Jishu, and Li Guangmin ( Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China; Institute of Genetics and Physiology, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang 050051, China; College of Life Science, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China)
关键词：
Strawberry; Ethylene; Calcium messenger system; Fruit; Membrane; Ca2 + -ATPase; Lipid peroxidation
摘  要：
The strawberry fruits (Fragaria ananassa Duch. 'Chunxing' ) harvested at white stage were used to investigate the effects of exogenous ethylene (50 μL · L -1 ) on Ca -ATPase activities, O2-production rate and MDA content of microsomal membrane with or without pretreatment of 100 μmol · L-1 chloropromaize ( CPZ) , trifluoperizine ( TFP) and verapamil ( VER) , respectively. The results showed that the exogenous ethylene had no obvious influence on O2- production rate, and had no much effect on MDA content, but stimulated Ca2+-ATPase activity of microsomal membrane at 12 h after ethylene treatment. Whereas a decreasing of Ca2 + -ATPase activities, and relatively higher MDA content were found at 24 h after ethylene removal. The pretreatment of CPZ, TFP and VER reduced the Ca2 + -ATPase activities and MDA coiitent of microsomal membrane under ethylene treatment, but had no significant effect on O2- production rate. These suggested that cellular Ca + -CaM may be involved in regulation of Ca + -ATPase activity and lipid peroxidation of microsomal membrane induced by ethylene.

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