文献类型：期刊文献

中文题名：模拟酸雨胁迫对银杏部分生理特性的影响

英文题名：Effects of Simulated Acid Rain on the Physiological Characteristics in Ginkgo

作者：胡晓梅[1] 尚鹤[2] 苟姝贞[1] 姜静[1] 候麟[1] 孙亚琴[1] 邓仕槐[1]

第一作者：胡晓梅

机构：[1]四川农业大学农业环境工程省重点实验室;[2]中国林业科学研究院森林生态环境与保护研究所

年份：2010

期号：9

起止页码：106-109

中文期刊名：河南农业科学

外文期刊名：Journal of Henan Agricultural Sciences

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：国家"十一五"科技攻关项目(2006BAD03A0104-2)

语种：中文

中文关键词：模拟酸雨;胁迫;银杏;生理特性

外文关键词：Simulated acid rain; Stress; Ginkgo; Physiological characteristics

分类号：S664.3

摘要：研究模拟酸雨(pH2.0、3.0、4.0、5.6)胁迫对银杏叶片超氧化物歧化酶(SOD)活性、过氧化氢酶(CAT)活性、丙二醛(MDA)含量以及质膜透性等生理生化指标的影响。结果表明,pH≤3.0的模拟酸雨对银杏生理特性的影响更为强烈,各个梯度的模拟酸雨胁迫均促使银杏叶片SOD活性和CAT活性急剧上升后稳定在一个较高水平,MDA含量呈先升后降的态势,电解质渗透率在酸雨胁迫后期呈缓慢下降趋势。由此说明,pH 3.0为酸雨对银杏叶片的隐性临界伤害点,也说明银杏能够对酸雨胁迫迅速作出反应,通过长期的酸雨胁迫可能获得某些耐酸的生理特性。
Effects of simulated acid rain treatment on the physiological and biochemical characte-ristics of ginkgo were investigated under different pH value（（pH2.0、3.0、4.0、5.6）.The results showed that the effect of pH≤3.0 simulated acid rain on ginkgo was stronger than that of others;under the stress of simulated acid rain,the activities of catalase（CAT） and superoxide dismutase（SOD） increased sharply at the beginning and then kept steady-going at a high level,the content of malondialdehyde（MDA） increased at the beginning and then decreased,the rate of electrolyte leakage decreased slowly at the late stage of the stress from simulated acid rain.So pH=3.0 was the recessive critical damage point and ginkgo could respond promptly to the long-term acid rain stress,physiological characteristics about some acid-resistant could be obtained through long-term acid rain stress.