热带作物学报2011，Vol.32Issue(3)：383-388,6.DOI:10.3969/j.issn.1000-2561.2011.03.003
铜胁迫对苋菜叶片叶绿素a荧光诱导动力学的影响
Effects of Copper Stress on the Chlorophyll a Fluorescence Induction Kinetics of Amaranthus mangostanus L.
摘要
Abstract
The effect of Cu-added nutrient fluid on the root of A rnaranthus mangostanus L. was investigated in this experiment. Also, the function changes of the photosystem Ⅱ (PS Ⅱ ) reaction center in A maranthus mangostanus L.,and the influences of copper in donor and acceptor sides of this system were investigated by the method of fluorescence induction kinetics. The results showed that copper stress inactivated the PS Ⅱ reaction center in the leaves of Amaranthus mangostanus L., decreased the maximal photochemical efficiency of PSⅡ (FV/FM), and damaged the acceptor side of PS Ⅱ seriously and inhibited the transfer of linear electrons, and also did harm to the oxygen evolving complexes (OEC) of the donor side of PS Ⅱ. It could be concluded that the damage of copper stress in Amaranthus mangostanus L. was begun from the donor and acceptor sides of PsⅡin leaves.关键词
苋菜/铜胁迫/光系统Ⅱ/叶绿素荧光Key words
Amaranthus.mangostanus L./ Copper stress/ Photosystem Ⅱ/ Chlorophyll fluorescence分类
农业科技引用本文复制引用
林碧英,谢秋梅,林义章,朱海生,李永裕..铜胁迫对苋菜叶片叶绿素a荧光诱导动力学的影响[J].热带作物学报,2011,32(3):383-388,6.基金项目
国家科技支撑计划项目(2007BAD07B03) （2007BAD07B03）
福建省科技厅重点项目(2009N1003) （2009N1003）
福建省科技重大专项(ky0020102) （ky0020102）
福建农林大学校青年教师基金(2010005). （2010005）
