中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > NO_3~-胁迫下K~+、Ca~(2+)对黄瓜幼苗膜质过氧化及活性氧清除酶系统的影响 农业工程学报 2005,21 (2) 155-158
Position: Home > Articles > Effects of K~+ and Ca~(2+) on membrane lipid peroxidation and endogenous oxygen radicals scavenging enzymes systems under NO_3~- stress in cucumber seedling Transactions of the Chinese Society of Agricultural Engineering 2005,21 (2) 155-158

NO_3~-胁迫下K~+、Ca~(2+)对黄瓜幼苗膜质过氧化及活性氧清除酶系统的影响

作  者：
杨凤娟;王秀峰;魏珉;闫童
单  位：
山东农业大学园艺科学与工程学院
关键词：
NO3-胁迫;K+;Ca2+;黄瓜;膜质过氧化;活性氧;酶系统
摘  要：
通过水培试验探讨了NO3-胁迫下K+、C a2+对黄瓜幼苗膜质过氧化及活性氧清除酶系统的影响。结果表明,在相同NO3-浓度胁迫7d后,C a2+浓度越大,膜脂过氧化产物丙二醛(M DA)含量越高,而K+浓度越大,电解质相对渗透率越高,由此说明K+、C a2+对细胞膜造成伤害的机理不同。黄瓜幼苗活性氧清除酶系统对K+、C a2+的响应亦不同,在一定程度上,K+和C a2+可提高SOD、POD和CAT活性,保护植物免受自由基伤害,继而可增强植物对逆境的适应能力。
译  名：
Effects of K~+ and Ca~(2+) on membrane lipid peroxidation and endogenous oxygen radicals scavenging enzymes systems under NO_3~- stress in cucumber seedling
作  者：
Yang Fengjuan,Wang Xiufeng~※,Wei Min,Yan Tong(College of Horticulture Science and Engineering,Shandong Agricultural University,Tai'an 271018,China)
关键词：
NO~-_3 Stress;K~+;Ca~(2+);cucumber;membrane lipid peroxidation;oxygen radical;enzymes system
摘  要：
The effects of K~+ and Ca~(2+) on membrane lipid peroxidation and endogenous oxygen radicals scavenging enzymes systems under high NO~-_3 stress in cucumber seedling were studied.The results showed that cucumber seedlings stressed under same high NO~-_3 concentration for 7 d,membrane lipid peroxidation produce(MDA)(increased) with the increase of Ca~(2+) concentration and relative electrolytic leakage was rising when K~+ concentration rised.So injury mechanism brought by K~+ and Ca~(2+) on cell membrane was different. And the response of(endogenous) oxygen radicals scavenging enzymes system in cucumber seedlings on K~+ and Ca~(2+) concentration was also different.To a certain extent,K~+ and Ca~(2+) could improve the activities of SOD,POD and CAT,and protect plants against damage from free radical to strength adaptability of plants to adversity.

相似文章

导出引用
计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46