中国生物防治学报2017，Vol.33Issue(3)：394-400,7.DOI:10.16409/j.cnki.2095-039x.2017.03.014
深色有隔内生真菌甘瓶霉对番茄抗枯萎病的作用
Enhanced Tolerance of Tomatoes against Fusarium oxysporum by Inoculation with Dark Septate Endophyte
摘要
Abstract
Tolerance of tomato plants (Lycopersicon esculentum) against fungal pathogen Fusarium oxysporum was investigated by inoculation with two biocontrol agents,dark septate endophyte (DSE) strains K36 and Z48 of Phialophora mustea,and the influence on antioxidant enzymes was also assayed.Under the treatment of F.oxysporum on tomato plants,the inoculation of two DSE strains significantly alleviated the growth inhibition of tomatoes,compared with the uninoculated-DSE controls.Inoculation of the strains K36 and Z48 significantly increased plant height by 46.4％ and 53.2％,and enhanced tomato shoot and root biomasses by 60.6％ and 50％,63.7％ and 65.9％,respectively.Moreover,DSE inoculation further triggered the antioxidant response of tomatoes,and increased the activities of SOD by 19.3％ and 8.1％,POD by 14.0％ and 4.4％,respectively.The enhanced antioxidant enzymes resulted in the alleviated cell-induced lipid peroxidation stress caused by fungal pathogens,compared with the uninoculated DSE treatments under F.oxysporum inoculation.Our results revealed that DSE colonization could improve the plant resistance against wilt disease caused by F.oxysporum and further promote the growth of host plants.关键词
深色有隔内生真菌/甘瓶霉/番茄/抗病性/尖孢镰刀菌/抗氧化酶Key words
dark septate endophytes/Phialophora mustea/Lycopersicon esculentum/disease resistance/Fusarium oxysporum/antioxidant enzymes分类
农业科技引用本文复制引用
张晓蓉,李涛,王超君,朱玲玲,徐露娟,赵之伟..深色有隔内生真菌甘瓶霉对番茄抗枯萎病的作用[J].中国生物防治学报,2017,33(3):394-400,7.基金项目
国家自然科学基金(31460114,41461073) （31460114,41461073）
云南省中青年学术技术带头人后备人才项目(2012HB006) （2012HB006）
