Inductive effect of methyl jasmonate on tobacco resistance to cucumber mosaic virus | 茉莉酸甲酯对烟草抗黄瓜花叶病毒的诱导效应
2009
Shi Jinge, Henan Agricultural University, Zhengzhou(China),College of Agronomy | Yin Quanyu, Henan Agricultural University, Zhengzhou(China),College of Agronomy | Yang Tiezhao, Henan Agricultural University, Zhengzhou(China),College of Agronomy
chinois. 用1 g・L. 1茉莉酸甲酯（MJ）处理小十字期烟草幼苗,烟苗移栽后长至10片真叶时再用相同浓度MJ处理一次,并接种烟草黄瓜花叶病毒,研究茉莉酸甲酯对烟草黄瓜花叶病毒（CMV）的诱导效应.结果表明：接种CMV后21 d,MJ处理烟株的病情显著低于对照,诱导效果达到43.24%;MJ处理提高了烟草幼苗叶片内的过氧化物酶、过氧化氢酶及超氧化物歧化酶的活性和过氧化氢的含量;而接种CMV后,MJ处理烟株叶片过氧化氢酶、超氧化物歧化酶活性下降,过氧化物酶活性增强,过氧化氢含量明显升高.[著者文摘]
Afficher plus [+] Moins [-]anglais. Tobacco seedlings in cross period were sprayed with 1 g・L. 1 methyl jasmonate（MJ）,ten-leaf tobacco plants,after being transplanted,were treated with the same treatment,and inoculated with cucumber mosaic virus（CMV）,then the effects of MJ on resistance induction were studied.The results revealed that：21 d after inoculated with CMV,the disease indexes of tobacco plants treated with MJ was lower than CK,the inductiive effect was 43.24 %;The activities of POD,CAT,SOD,and the content of H2O2 in tobacco leaves increased under MJ treatment;After the tobacco plants were inoculated with CMV,the activities of CAT and SOD decreased,the activity of POD and the content of H2O2 increased.
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