单 位：
黔南民族师范学院生命科学系;黔南民族师范学院化学系
关键词：
皱叶留兰香;硝普钠;Cd2+胁迫;生理响应
摘 要：
为缓解Cd2+对皱叶留兰香的毒害作用,采用溶液培养法研究外源NO供体硝普钠(SNP)对20 mg/L、30 mg/L Cd2+胁迫下皱叶留兰香生长和生理特性的影响。结果表明:100μmol/L SNP一定程度缓解较高浓度Cd2+对皱叶留兰香植株生长,叶绿素a、b,叶绿素总含量合成、硝酸还原酶活性和根系活性的抑制作用;降低丙二醛(MDA)含量及相对电导率;增强超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)的活性,从而在一定程度上缓解较高浓度Cd2+对皱叶留兰香生长的胁迫。
译 名：
Effects of Exogenous Nitric Oxide on Growth and Physiological Response of Mentha cdispate Seedlings under Cd~(2+) Stress
作 者：
WEI Mei-yu1,LIU Li-ping1,WANG Yu-lin2,CHEN Shi-jun1(1.Department of Life Science,Qiannan Normal College for Nationalities,Duyun,Guizhou 558000;2.Department of Chemistry,Qiannan Normal College for Nationalities,Duyun,Guizhou 558000,China)
关键词：
Mentha cdispate;sodium nitroprusside;Cd2+ stress;physiological response
摘 要：
The solution culture method was used to study effects of sodium nitroprusside(an exogenous nitric oxide donor) on growth and physiological response of Mentha cdispate under Cd2+ stress.The results showed that 100 μmol/L sodium nitroprusside could relieve the inhibition to seedling growth,nitrate reductase activity,root vigor and the synthetic content of chlorophyll a,chlorophyll b and total chlorophyll of Mentha cdispate,reduce the MDA content and relative electric conductivity of Mentha cdispate leaves,and increase SOD,POD and CAT activity of Mentha cdispate under Cd2+ stress with a high concentration,which expresses that 100 μmol/L sodium nitroprusside can relieve the stress to seedling growth of Mentha cdispate under Cd2+ stress with a high concentration to a certain extent.
