烟草与TMV非亲和性互作中根系活力及CAT活性变化  

The Changes of Root Vigor and CAT Activity in Non-affinity Interaction between Tobacco and TMV

作　　者：马学萍[1] 刘开全[1] 和云[1] 刘永琼[1] 

机构地区：[1]曲靖师范学院生物资源与环境科学学院,云南曲靖655011

出　　处：《中国烟草科学》2012年第1期78-80,共3页Chinese Tobacco Science

基　　金：曲靖师院青年科研基金项目"烟草感染TMV后根系的生长及生理变化研究"(2008QN033)

摘　　要：漂盘培育枯斑三生烟,苗期接种TMV后3、7、11、15、19、23、27、31 d分别取样测定其根系的活力和过氧化氢酶活性,并以未接种TMV烟苗根系活力和过氧化氢酶活性为对照。结果表明,枯斑三生烟接种病毒后,其根系CAT活性值与取样时间有较强的负相关性(r=-0.9,p<0.01)。根系活力最初迅速升高,之后又逐渐降低呈平稳趋势。The root vigor and CAT activity of Nicotiana tabacum cv.＇Samsun NN ＇ inoculated TMV were investigated in different time.The result showed that within one month,CAT activity value of its root system and sampling time had a strong negative correlation（r =-0.9,p 0.01）.The root vigor of its root system were abruptly increased first,and later decreased to the trend of smooth.

关 键 词：枯斑三生烟 烟草花叶病毒 根系活力 CAT活性 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]