ÃÞ »¨ ѧ ±¨ Cotton Science 2010£¬22£¨5£©£º479-485
Herbivore Stress by Lygus lucorum Inducing Protective Enzyme Activity and MDA Content on Different Cotton Varieties Abstract: The dynamics of the activities of protective enzymes and MDA content in two kinds of genetically modified (GM) cotton varieties and their non-GM parents after being piercing-sucked by Lygus lucorum were studied. The results showed that: before and after the vaccination of Lygus lucorum , there were no significant difference on the activities of protective enzymes and MDA content between two kinds of GM cotton varieties and their non-GM parents, so it has no effect on physiological indices when exogenous genes were introduced into cotton. Throughout the period of Lygus lucorum 's attacking, there was very significant difference in the activities of protective enzymes and MDA content to the same cotton variety; the three indicators, SOD, MDA and PAL activities or content, showed significant or very significant differences in the interaction effect between variety and bug accepting time, and the rest of the interaction was not significant.
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