title: Antagonistic and Biocontrol Potential of Trichoderma asperellum ZJSX5003 Against the Maize Stalk Rot Pathogen Fusarium graminearum.
abstract: The efficacy of seven strains of Trichoderma asperellum collected from the fields in Southern China was assessed against Fusarium graminearum (FG) the causal agent of corn stalk rot of maize were in vitro for their antagonistic properties followed by statistical model of principal compound analysis to identify the beneficial antagonist T. asperellum strain. The key factors of antagonist activity were attributed to a total of 13 factors including cell wall degrading enzymes (chitnase, protease and β-glucanases), secondary metabolites and peptaibols and these were analyzed from eight strains of Trichoderma. A linear regression model demonstrated that interaction of enzymes and secondary metabolites of T. asperellum strain ZJSX5003 enhanced the antagonist activity against FG. Further, this strain displayed a disease reduction of 71 % in maize plants inoculated with FG compared to negative control. Pointing out that the T. asperellum strain ZJSX5003 is a potential source for the development of a biocontrol agent against corn stalk rot.
authors.affiliation: Department of Environment and Resource, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd, Shanghai, 200240 People's Republic of China ; State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, People's Republic of China ; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, People's Republic of China.
authors.forename: Yaqian
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Environment and Resource, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd, Shanghai, 200240 People's Republic of China ; State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, People's Republic of China ; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, People's Republic of China.
authors.forename: Ruiyan
authors.initials: R
authors.lastname: Sun
authors.affiliation: Department of Environment and Resource, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd, Shanghai, 200240 People's Republic of China ; State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, People's Republic of China ; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, People's Republic of China.
authors.forename: Jia
authors.initials: J
authors.lastname: Yu
authors.affiliation: Department of Environment and Resource, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd, Shanghai, 200240 People's Republic of China ; State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, People's Republic of China ; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, People's Republic of China.
authors.forename: Kandasamy
authors.initials: K
authors.lastname: Saravanakumar
authors.affiliation: Department of Environment and Resource, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Rd, Shanghai, 200240 People's Republic of China ; State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, People's Republic of China ; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai, People's Republic of China.
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
keywords: Cell wall-degrading enzymes; Corn stalk rot; Fusariumgraminearum; Principal component analysis; Trichoderma asperellum