利用光诱导延迟荧光的植物盐胁迫生理监测  

Light-induced Delayed Fluorescence as an Indicator for the Effects of Salt Stress on Plant Physiology

作　　者：张玲瑞[1] 邢达[1] 王俊生[1] 曾礼漳[1] 李强[1] 

机构地区：[1]华南师范大学激光生命科学研究所暨激光生命科学教育部重点实验室,广州510631

出　　处：《光子学报》2007年第12期2284-2289,共6页Acta Photonica Sinica

基　　金：国家自然科学基金(60378043;30470494);广东省自然科学基金(015012;04010394;2004B10401011)资助

摘　　要：利用自制的便携式延迟荧光(Delayed Fluorescence,DF)探测系统,以早熟18号大豆品种为实验材料,研究了盐胁迫对植物叶绿体DF特性的影响.结果发现在单纯的盐胁迫和盐胁迫伤害程度被调控缓解时,绿色植物叶片光诱导DF强度的变化都能很好地反应植物叶片光合性能的变化.因此,可以用DF强度的变化来表征盐胁迫对植物的伤害程度.With the leaves of Zaoshu No. 18 soybean species （Glycine max Zaoshu No. 18） as testing models,the effects of salt stress on characteristics of DF（Delayed Fluorescence）are studied by using a home-made portable weak luminescence detection system. The results show that the changes in DF intensity of green plant can truly reflect the changes in photosynthetic performance. Therefore,the changes in DF intensity may provide a new approach for the evaluating the damage extent of plant physiology caused by the salt stress. DF technique can be potential useful for real-time monitoring the effects of salt stress on plants and screening the plant species with salt tolerance.

关 键 词：延迟荧光 光合速率 盐胁迫 缓解效应 

分 类 号：Q632[生物学—生物物理学]