臭氧胁迫对植物生长影响的综述  

Effects of ozone stress on plant growth

作　　者：列淦文[1] 郭淑红[1] 薛立[1] 

机构地区：[1]华南农业大学林学院,广州510642

出　　处：《生态科学》2014年第3期607-612,共6页Ecological Science

基　　金：林业公益性行业科研专项"城市地带性乡土植物材料筛选与体系构建模式研究"(201004042);广东省林业局资助项目"林分改造优良乡土阔叶树种筛选"(F09054)

摘　　要：臭氧(O3)能造成植物叶面损伤、茎缩短甚至植株矮化,诱发植物细胞脂质过氧化,损伤叶绿体,破坏光合色素,诱导植物叶片气孔关闭,抑制碳的同化,减弱植物的净光合作用,加速植物老化,最终引起植物生长的下降,种子和作物的减产。臭氧胁迫对植物生长的影响随臭氧浓度和植物种类而异,也与植物的生长发育阶段相关。不同植物间的竞争影响其对臭氧胁迫的敏感性,慢性臭氧胁迫能引起枝叶和根之间碳分配的变化。加强自然环境中臭氧对森林影响的研究,定位研究不同环境条件下植物对臭氧的响应,开展全球气候变化和臭氧的交叉作用对植物的影响是今后的研究热点。As a major greenhouse gas, ozone could cause visible foliar injury, stem shortened or even brachysm for plants. It could induce lipid peroxidation, damage chloroplasts, destroy photosynthetic pigments in plant cells, and give rise to stomata closure of leaves. By restraining carbon assimilation, weakening the net photosynthesis of plants, it could ultimately lead to the decline of plant growth and output reduction in seeds and crops. The effects of ozone stress on plant growth are not only different from ozone concentration and species to species, but also relevant to the growth stage of plants, and what＇s more, the competition among different plants could impact their sensitivities to ozone stress. Chronic ozone stress could lead to carbon allocation change among branches, leaves and roots. As a result, to reinforce studies on ozone effects on forests in natural environments, to locate researches about plant responses to ozone under different environmental conditions, and to conduct researches on interaction between global climate change and ozone on plants would be the hot spots for future researches between ozone and plants.

关 键 词：臭氧胁迫 植物 生长 

分 类 号：Q945.1[生物学—植物学]