title: Mycoparasitism studies of Trichoderma species against three phytopathogenic fungi: evaluation of antagonism and hydrolytic enzyme production.
abstract: Trichoderma spp. are used for biocontrol of several plant pathogens. However, their efficient interaction with the host needs to be accompanied by production of secondary metabolites and cell wall-degrading enzymes. Three parameters were evaluated after interaction between four Trichoderma species and plant-pathogenic fungi: Fusarium solani, Rhizoctonia solani and Sclerotinia sclerotiorum. Trichoderma harzianum and T. asperellum were the most effective antagonists against the pathogens. Most of the Trichoderma species produced toxic volatile metabolites, having significant effects on growth and development of the plant pathogens. When these species were grown in liquid cultures with cell walls from these plant pathogens, they produced and secreted β-1,3-glucanase, NAGAse, chitinase, acid phosphatase, acid proteases and alginate lyase.
authors.affiliation: Department of Biochemistry and Molecular Biology, Federal University of Goiás (ICB), Goiânia, GO, 74001-970, Brazil.
authors.forename: Thiago Fernandes
authors.initials: TF
authors.lastname: Qualhato
authors.forename: Fabyano Alvares Cardoso
authors.initials: FA
authors.lastname: Lopes
authors.forename: Andrei Stecca
authors.initials: AS
authors.lastname: Steindorff
authors.forename: Renata Silva
authors.initials: RS
authors.lastname: Brandão
authors.forename: Rosália Santos Amorim
authors.initials: RS
authors.lastname: Jesuino
authors.forename: Cirano José
authors.initials: CJ
authors.lastname: Ulhoa
mesh_terms: D000898:Antibiosis; D000935:Antifungal Agents / Q000378:metabolism; D001203:Ascomycota / Q000187:drug effects / Q000254:growth & development*; D004798:Enzymes / Q000378:metabolism; D005670:Fusarium / Q000187:drug effects / Q000254:growth & development*; D056265:Microbial Interactions; D010572:Pest Control, Biological / Q000379:methods; D012232:Rhizoctonia / Q000187:drug effects / Q000254:growth & development*; D014242:Trichoderma / Q000201:enzymology* / Q000502:physiology*; D055549:Volatile Organic Compounds / Q000378:metabolism
chemical_list: D000935:Antifungal Agents; D004798:Enzymes; D055549:Volatile Organic Compounds