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Biocontrol potential of Microbacterium maritypicum Sneb159 against Heterodera glycines
Author(s) -
Zhao Jing,
Liu Dan,
Wang Yuanyuan,
Zhu Xiaofeng,
Xuan Yuanhu,
Liu Xiaoyu,
Fan Haiyan,
Chen Lijie,
Duan Yuxi
Publication year - 2019
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.5546
Subject(s) - heterodera , soybean cyst nematode , biology , biological pest control , jasmonic acid , salicylic acid , nematode , population , systemic acquired resistance , microbiology and biotechnology , agronomy , botany , gene , genetics , mutant , medicine , ecology , environmental health , arabidopsis
BACKGROUND The soybean cyst nematode Heterodera glycines (Ichinohe) is the most devastating pathogen affecting soybean production worldwide. Biocontrol agents have become eco‐friendly candidates to control pathogens. The aim of this study was to discover novel biocontrol agents against H. glycines . RESULTS Microbacterium maritypicum Sneb159, screened from 804 strains, effectively reduced the number of females in field experiments conducted in 2014 and 2015. The stability and efficiency of H. glycines control by Sneb159 was further assessed in growth chamber and field experiments. Sneb159 decreased H. glycines population densities, especially the number of females by 43.9%–67.7%. To confirm Sneb159 induced plant resistance, a split‐root assay was conducted. Sneb159 induced local and systemic resistance to suppress the penetration and development of H. glycines , and enhanced the gene expression of PR2 , PR3b , and JAZ1 , involved in the salicylic acid and jasmonic acid pathways. CONCLUSION This is the first report of M. maritypicum Sneb159 suppressing H. glycines infection. This effect may be the result of Sneb159‐induced resistance. Our study indicates that M. maritypicum Sneb159 is a promising biocontrol agent against H. glycines . © 2019 Society of Chemical Industry