Bacillus amyloliquefaciens, Microbacterium resistens and Stenotrophomonas maltophilia in Biocontrol of Corynespora cassiicola in Tomato Culture

Abstract

This article presents an approach on the use of biological control applying the action of bacteria against Corynespora cassiicola (Bert & Curt) Wei, as this is one of the main phytopathogen of aerial propagation that limits the productivity of solanaceous plants. The use of bacteria in the control of solanaceous diseases is a widespread methodology, since the biocontrol of phytopathogen carried out by bacteria can occur through different mechanisms such as inhibition by antibiotics, parasitism, competition for physical space or induction of plant resistance to pathogen attack. This research aimed to select, identify and evaluate in vitro and in plant antagonist bacteria with potential for the development of a bioproduct that contributes to the sustainable agricultural development of tomatoes. In plant collections and tests were carried out at the Dr. Alejo von Der Pahlen, KM 14 on road AM 010 (S: 02° 59' 45.7" and W: 60° 01' 22.3"). The in vitro tests were carried out at Embrapa Western Amazon. The results indicate that Bacillus amyloliquefaciens showed 75.73% of in vitro inhibition of C. cassiicola and 56% of target spot control when compared to Microbacterium resistens and Stenotrophomonas maltophilia in tests on tomato.