杉木解酚菌的研究  

Phenolic acid degradation fungi screened from successive plantation site of Chinese fir.

作　　者：何绍江[1] 毛新国[1] 李传涵[1] 

机构地区：[1]华中农业大学生命科学技术学院,武汉430070

出　　处：《应用生态学报》2001年第3期344-346,共3页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金!资助项目 (39570 584)

摘　　要：从杉木林土壤中筛选到 5株高效解酚菌 (F2 、F3、F4 、F7、F15) ,结果表明 ,F4 、F33d ,F2 、F155d能将 6 0 0mg·L-1的阿魏酸降解完 ,F7的降解率为 91 3 % ;F4 、F3、F2 、F73d ,F15、4d能将 6 0 0mg·L-1的对羟基苯甲酸完全降解 ;5株解酚菌对邻香草醛的降解能力较弱 ,除F2 5d能将 30 0mg·L-1的邻香草醛完全降解外 ,其余 4株 5d的降解率为83 %～ 96 % .同时发现 ,F4 能抑制杉苗生长 ,而其余 4株则能在不同条件下促进杉苗生长 ,将 5种菌按等比例混合使用 ,在土壤添加酚酸的情况下 ,仍能促进菌根苗Z和非菌根苗生长 ,杉木苗干重增长率为 8 9%～ 16 8% .Successive plantation of Chinese fir (Cunninghamia lanceolata) leads an obvious decline of soil fertility. To solve the urgent problem,five fungal species (F 2,F 3,F 4,F 7,F 15 ) which can effectively degrade phenolic acid were screened to degrade the toxic material in successive plantation site and to improve the soil bioactivity.Pot experiment showed that all test fungus,except F 4,could improve plant growth individually,but not counteract the effect of phenolic acid.Inoculating five inoculated fungi mixed with equal proportion not only counteracted the inhibitory effect of phenolic acid but also improved the growth of Chinese fir uninoculated with VAM fungi but inoculated with G.mosseae.

关 键 词：杉木 地力衰退 土壤中毒 解酚菌 

分 类 号：S718.8[农业科学—林学]