Effect of Six Bacterial Strains on the Activity of Second Instar Larvae and Egg Hatching of Meloidogyne incognita  

作　　者：Jie LIU Li HE Zixuan WANG Jianqing MA Xiaolong TONG Dandan CAO Gangyong ZHAO 

机构地区：[1]Sinofert Holdings limited,Beijing 100069,China [2]Hebei Innovation Center for Bioengineering and Biotechnology,Baoding 071002,China [3]School of Life Sciences,Hebei University,Baoding 071002,China [4]Engineering Research Center of Ecological Safety and Conservation in Beijing-Tianjin-Hebei(Xiong an New Area)of MOE,Baoding 070001,China

出　　处：《Plant Diseases and Pests》2024年第5期15-18,共4页植物病虫害研究（英文）

基　　金：Supported by Key R&D Project of Science&Technology Department of Ningxia Hui Autonomous Region(2021BBF02013);Post-doctoral Program of Hebei Province(2019003011);Hebei Province Innovation Ability Enhancement Plan Project(225676109H).

摘　　要：[Objectives]The paper was to screen effective biocontrol strains against Meloidogyne incognita.[Methods]The effect of six bacterial strains sourced from the research group s strain library on the activity of second instar larvae of M.incognita,as well as on egg hatching,was evaluated.[Results]The treatment of fermentation supernatant derived from the X-2 strain exhibited a pronounced lethal effect on M.incognita,with a corrected mortality rate reaching 97%within 72 h.Additionally,this treatment significantly inhibited egg hatching,achieving an inhibition rate of 94.69%at a 20-fold dilution.The strain was identified as Bacillus velezensis,belonging to the genus Bacillus,and was designated as RKN1111.[Conclusions]This study presents alternative strains and a theoretical framework for the biological control of M.incognita.

关 键 词：Meloidogyne incognita Bacterial strain Second instar larvae Egg hatching 

分 类 号：S43[农业科学—农业昆虫与害虫防治]