摘要
随着工业的快速发展,近地面臭氧(O_(3))浓度大幅度上升,对植物生长以及生理状况造成了不可忽视的负面影响。在O_(3)浓度为60 nmol/mol的环境中暴露几天,对O_(3)敏感的植物就会出现不同程度的叶片损伤。当O_(3)浓度超过80 nmol/mol时,则会对大多数植物的生理生态指标产生不利影响。研究综述了高浓度O_(3)环境对植物的胁迫作用:影响植物的光合作用,使光合速率降低;改变植物的膜透性:丙二醛(MDA)含量上升,电解质外渗;对物质代谢造成影响:可溶性蛋白质、氨基酸和可溶性糖类等含量发生改变;影响植物的酶活系统:植物体内过氧化物酶(POD)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性发生变化。
With the rapid development of industry,the concentration of ground-level ozone(O_(3))has increased significantly,which has caused a negative impact on plant growth and physiological conditions that can’t be ignored.After several days of exposure in an O_(3) concentration of 60 nmol/mol,O_(3)-sensitive plants will show varying degrees of leaf damage.When the concentration of O_(3) exceeds 80 nmol/mol,it will adversely affect the physiological and ecological indicators of most plants.The effects of high concentration O_(3) environment on plant stress were summarized as the following:The plant photosynthesis was affected and the photosynthetic rate was reduced;the membrane permeability of plants was changed:the content of malondialdehyde(MDA)increased,and electrolyte exosmosed;the contents of soluble protein,amino acid and soluble carbohydrate were changed.The plant enzyme activity system is affected:The activities of peroxidase(POD),superoxide dismutase(SOD),catalase(CAT)and ascorbate peroxidase(APX)in plants can be affected.
作者
郭冰
赵诣
张震斌
王晓涵
GUO Bing;ZHAO Yi;ZHANG Zhen-bin;WANG Xiao-han(School of Chemical and Environmental Engineering,Liaoning University of Technology,Jinzhou 121001,China)
出处
《辽宁工业大学学报（自然科学版）》
2024年第2期79-84,共6页
Journal of Liaoning University of Technology(Natural Science Edition)
基金
辽宁省教育厅科学研究面上项目(LJKZ0616)。
关键词
植物
光合速率
超氧化物歧化酶
plants
photosynthetic rate
superoxide dismutase
作者简介
郭冰(2000-),女,辽宁朝阳人,硕士生;通讯作者:赵诣(1990-),女,辽宁凌海人,讲师,博士。
