首页 | 本学科首页   官方微博 | 高级检索  
   检索      

磷酸缓冲液对小麦苗保护酶系的影响及与SO2污染的关系
引用本文:刘荣坤,张晓何.磷酸缓冲液对小麦苗保护酶系的影响及与SO2污染的关系[J].Acta Botanica Sinica,1996,38(8):647-652.
作者姓名:刘荣坤  张晓何
作者单位:辽宁大学生物系!沈阳110036(刘荣坤,李珍珍,朱继红),辽河油田环保处!盘锦124010(张晓何)
基金项目:沈阳市科委重点资助课题
摘    要:磷酸缓冲液对保护酶系的影响因处理方式和小麦 (Triticum aestivum L.)品种而异。一般是 SOD和 POD活性显著增强 ,前者随 SO2 熏气剂量的增加而降低 ,但较对照为高 ,并有新同工酶谱产生 ;后者随 SO2 熏气剂量的增加而增高 ,并与磷酸缓冲液呈交互促进效应 ,同工酶谱显著增强。作为清除自由基保护酶系的变化 ,可能是磷酸缓冲液减轻小麦苗 SO2 伤害的原因之一。

关 键 词:磷酸缓冲液  超氧化物歧化酶  过氧化物酶

PHOSPHATE BUFFERS EFFECT ON PROTECTIVE ENZYME SYSTEM AND RELATIONSHIP OF ENZYME SYSTEM WITH SO_2 POLLUTION IN WHEAT SEEDLINGS
Authors:Liu Rong kun  Li Zhen zhen and Zhu Ji hong
Abstract:The effect of phosphate buffer on protective enzyme system was different as the way of treatment and wheat (Triticum aestivum L.) species.Normally superoxide dismutase (SOD) and peroxidase (POD) activity increased markedly. The former decreased with the increase of SO 2 fumigation dosage but it was higher than control and producted new isoenzyme pedigree. The latter increased according to SO 2 fumigation and showed relative gain effect with phosphate buffer the isoenzyme pedigree increased markedly.The change of protective enzyme system of scavenging free radicals was possible one cause that phosphate buffer eased SO_2 insult of wheat seedlings.
Keywords:Phosphate buffer  Superoxide dismutase  Peroxidase
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号