向日葵菌核病菌毒素对向日葵体内几种酶活性的影响  

Effect of Sclerotinia sclerotiorum Toxin on Some Enzyme Activities in Sunflower

作　　者：张笑宇[1] 刘正坪[2] 胡俊[1] 李荣禧[1] 

机构地区：[1]内蒙古农业大学农学院,呼和浩特010019 [2]北京农学院植物科学技术系,北京102206

出　　处：《北京农学院学报》2005年第1期49-52,共4页Journal of Beijing University of Agriculture

摘　　要：以不同品种的向日葵为材料,研究了向日葵菌核病菌毒素对其体内过氧化物酶(POD)、多酚氧化{BF酶(PPO)及苯丙氨酸解氨酶(PAL)活性的影响。研究表明:向日葵幼苗用粗毒素处理后,粗毒素增加了向日葵叶片POD的活性,且2个品种具有差异显著性。粗毒素抑制了向日葵叶片中PPO和PAL的活性,经稀释后低浓度的粗毒素增加了PAL活性。The effects of Sclerotinia sclerotiorum toxin on peroxidase,polyphenoloxidase and phenylalanine ammonialyase activities of the leaves from different sunflower cultivars were tested.The results showed that the toxin increased the activity of peroxidase and the increase was different in two varieties.The toxin inhibited activities of polyphenoloxidase and phenylalanine ammonialyase,but in increased the activity of phenylalanine ammonialyase.

关 键 词：菌核病菌 向日葵 体内 过氧化物酶(POD) 苯丙氨酸解氨酶 差异显著性 PAL活性 粗毒素 PPO 低浓度 品种 叶片 幼苗 

分 类 号：S435.654[农业科学—农业昆虫与害虫防治] S565.5[农业科学—植物保护]