Effect of Six Bacterial Strains on the Activity of Second Instar Larvae and Egg Hatching of Meloidogyne incognita
刊名 Plant Diseases and Pests
作者 Jie LIU, Li HE, Zixuan WANG, Jianqing MA, Xiaolong TONG, Dandan CAO, Gangyong ZHAO
作者单位 Sinofert Holdings limited; Hebei Innovation Center for Bioengineering and Biotechnology; School of Life Sciences,Hebei University; Engineering Research Center of Ecological Safety and Conservation in Beijing-Tianjin-Hebei (Xiong’an New Area) of MOE
DOI 10.19579/j.cnki.plant-d.p.2024.05.005
年份 2024
刊期 5
页码 15-18
关键词 Meloidogyne incognita; Bacterial strain; Second instar larvae; Egg hatching
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.