Abstract:

According to the potted inoculation experiment, we studied on VA mycorrhizalhad influenced on Phellodendron amurense resistance physiological indexes of annual seedlings. The results showed that VA mycorrhizal fungi significantly increased the resistance physiological index of Phellodendron amurense seedlings, the content of soluble sugar increased by the enlarged infection rates; meanwhile promoted the soluble sugar in the leaves of Phellodendron amurense transferring to the roots, gradually decreased the content of Fpro and MDA and increased activities of respiratory enzyme and protective enzymes. After inoculated Glomus diaphanum, the seedling showed that soluble sugar, Fpro, the activity of CAT and POD had the most obviously changes. The content of soluble sugar of the leaf was 0.5736%, the content of leaf’s Fpro was 16.27μg/g, the activity of leaf CAT was 0.3186 mg/(g?min)，the activity of leaf‘s POD was 258.32 u/(g?min). It had the greatest infect on the MDA content, the activity respiratory enzyme and SOD after inoculated G. mosseae for Phellodendron amurense seedlings. The content of MDA of the leaf was 0.0119 μmol/g, the activity leaf ascorbic acid oxidase was 0.2714 mg/(g?min), the activity of leaf’s polyphenol oxidase was 0.3487 mg/(g?min), the activity of leaf SOD was 274.18 u/(g?FW).