生防真菌与氨基寡糖素组合对烟草黑胫病和根黑腐病的防治  

Control of Tobacco Black Shank and Black Root Rot by the Combination of Fungal Biocontrol Agents and Amino Oligosaccharides

作　　者：彭海莹 田叶韩[1] 李晓芳 张蕊 王德浩 梁元存[1] 高克祥[1] PENG Haiying;TIAN Yehan;LI Xiaofang;ZHANG Rui;WANG Dehao;LIANG Yuancun;GAO Kexiang(College of Plant Protection,Shandong Agricultural University,Tai’an,Shandong 271018,China)

机构地区：[1]山东农业大学植物保护学院,山东泰安271018

出　　处：《中国烟草科学》2021年第1期47-53,共7页Chinese Tobacco Science

基　　金：山东省现代农业烟草体系烟草病虫防控岗位项目资助(SDAIT-25-3)。

摘　　要：针对烟草黑胫病和根黑腐病两种烟草土传病害日益加重的现状,利用生防真菌棘孢木霉MX菌株和产紫青霉Q2菌株分别与植物诱抗剂氨基寡糖素进行组合,在盆栽条件下测定了其分别在两种病害胁迫下的抗病效果。结果表明,产紫青霉Q2和棘孢木霉MX对烟草黑胫病菌和根黑腐病菌均有较强的拮抗作用,其发酵滤液能有效抑制两种病原菌的生长,与氨基寡糖素组合后能够更好地促进烟草幼苗的生长,对黑胫病和根黑腐病的防治效果均达到65%以上,能显著提高发病烟草中防御酶PAL、SOD、POD的活性。The present situation of two kinds of tobacco soil-borne diseases,black shank disease and root black rot disease,is increasing,which greatly aggravates the degree of tobacco diseases.In this study,two excellent biocontrol strains,Penicillium purpurogenum strain Q2 and Trichoderma asperellum strain MX,were used to combine with amino oligosaccharides,a plant inducer of disease resistance,respectively.Effects on tobacco growth promoting and control efficacy of tobacco black shank and black root rot have been investigated by two fungal biocontrol agents and their combination with amino oligosaccharides in the potting experiment.The results showed that P.purpurogenum strain Q2 and T.asperellum strain MX had strong antagonism against P.parasitica var.nicotianae and T.basicola,and the combination of them and amino oligosaccharides could better promote the growth of tobacco seedlings,and the control effect on the tobacco black shank and black root rot was more than 65%,which could significantly improve the activities of PAL,SOD and POD in the diseased tobacco.

关 键 词：烟草黑胫病 烟草根黑腐病 棘孢木霉 产紫青霉 氨基寡糖素 生物防治 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]