The gene task1 is involved in morphological development, mycoparasitism and antibiosis of Trichoderma asperellum. Issue 5 (4th May 2017)

• Record Type: Journal Article
• Authors: Yang, Ping
• Is Part Of: Biocontrol science and technology. Volume 27:Issue 5(2017)
• Page Start: 620
• Page End: 635
• Publication Date: 2017-05-04
• Subjects: Mitogen-activated protein kinase -- biocontrol -- gene regulation -- cell wall degrading enzymes -- 6-pentyl-α-pyrone; Pests -- Biological control -- Periodicals; Weeds -- Biological control -- Periodicals; Pesticides -- Environmental aspects -- Periodicals; Plants, Protection of -- Periodicals; Plants -- Biological control -- Periodicals; Agricultural pests -- Control -- Periodicals; Pest Control, Biological -- Periodicals; 632.96
• DOI: 10.1080/09583157.2017.1318824
• Languages: English
• ISSNs: 0958-3157

Abstract

ABSTRACT: Competitive activity, mycoparasitism and antibiosis of Trichoderma asperellum are considered essential mechanisms in its suppressive activity against soil-borne plant pathogens. The role of the mitogen-activated protein kinase encoding gene task1 on morphological development, mycoparasitic interaction and the production of cell wall degrading enzymes and secondary metabolites were examined in T. asperellum . The Δ task1 mutant had altered growth morphology, lost its ability to parasitise plant pathogens and showed increased expression of several cell wall degrading enzymes during confrontation with Rhizoctonia solani . T. asperellum task1 expression was negatively correlated with cell wall degrading enzyme activities during inducing experiments using pathogen cell wall compounds. In antibiosis assays, task1 deletion caused increased output of 6-pentyl-α-pyrone and inhibition of pathogen growth.