安徽药菊脱毒苗与非脱毒苗生理生化的比较研究

目的 :研究安徽药菊脱毒苗与非脱毒苗生理生化的异同。方法 :取安徽药菊脱毒苗与非脱毒苗的叶片 ,测量叶绿素a(chla)、叶绿素b(chlb)、丙二醛 (MDA)的含量和POD ,SOD ,CAT3种保护酶的活性以及净光合速率(Pn)等生理生化指标。结果与结论 :菊花脱毒苗的叶绿素含量以及净光合速率均高于非脱毒苗 ,而与抗性生理有关的MDA含量及POD ,SOD和CAT的活性均低于非脱毒苗 ,这就为脱毒苗在外部形态和长势上均优于非脱毒苗提供了生理生化上的依据。

Comparative study on physiological and biochemical mechanism between virus-free seedling and common seedling in Chrysanthemum morrifolium from Anhui

Objective: To compare and explore the physiological and biochemical index of virus-free seedling and common seedling of Chrysanthemum morifolium. Method: Leaves of virus-free seedling and common seedling were cut down and the contents of chlorophyll a and b,MDA, and the activity of SOD,POD,CAT,and the net photosynthetic rate(Pn)were measured. Result and Conclusion: The contents of chlorophyll and Pn of virus-free seedling were higher than those of common seedling. But were measured,the contents of MDA and the activity of SOD,POD,CAT related to the physiological resistance were lower than the latter. These could explain the phenomenon of virus-free seedling grow better than the common seedling under the same condition.