中国蔬菜Issue(7):35-39,5.
AM真菌和PGPR菌剂组合对低温胁迫下黄瓜生长及防御酶活性的影响
Effects of Arbuscular Mycorrhizal Fungi and PGPR Combination Agents on Growth and Defense Enzyme Activity of Cucumber under Low Temperature Stress
摘要
Abstract
In order to select the best combination of arbuscular mycorrhizal(AM)fungi and plant growth-promoting rhizobacteria(PGPR)for cucumber(Cucumis sativus)to resist low-temperature damages,we studied the effects of different combinations on growth and defense enzymes in greenhouse under low temperature stress conditions. The results showed that the growth of cucumber and SOD,POD,CAT activities were higher than that of the non-vaccinated control,while MDA content was significantly lower than that of the controls, when inoculation with AM fungi or PGPR under low temperature treatments. Between the AM fungi inoculation treatments,Glomus versiforme had better positive effect on growth,defensive enzyme activities,and decreased the cell membrane damage. Between the PGPR inoculation treatments,Paenibacillus polymyxa had better growth and higher defensive enzyme activities,with less cell membrane damage. Among the inoculation treatments with AM fungi and PGPR ,inoculation treatment with both Glomus versiforme and Paenibacillas polymyxa had the best growth,highest defensive enzyme activities,minimum cell membrane damage. Hence,we would suggest to add this combination in greenhouse cucumber production to promote cucumber growth and improve plant cold resistance.关键词
低温胁迫/AM真菌/PGPR/黄瓜/防御/丙二醛Key words
Low temperature stress/AM fungi/PGPR/Cucumber/Defense enzymes/MDA引用本文复制引用
韩亚楠,刘润进,李敏..AM真菌和PGPR菌剂组合对低温胁迫下黄瓜生长及防御酶活性的影响[J].中国蔬菜,2014,(7):35-39,5.基金项目
“十二五”国家科技支撑计划重点项目(2014BAD05B03),山东省科技发展计划项目(2013GNC11014),青岛市基础研究项目 ()