Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Please note that all times are shown in the time zone of the conference. The current conference time is: 24th Aug 2026, 06:27:39am America, Santiago
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Daily Overview |
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7B: Sustainability Virtual location: VIRTUAL: Agora Meetings | |
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5:40pm - 5:45pm
Effect of chemical synthesis pesticides on the development of Bacillus subtilis in-vitro 1: Faculty of Natural Resources, Escuela Superior Politécnica de Chimborazo; 2: Grupo de Investigación y Desarrollo para el Ambiente y el Cambio Climático; 3: Grupo de Estudios Fitoentomológicos; 4: Investigador externo asociado The use of chemical synthesis products to control plant diseases has caused an imbalance in the ecological balance of microorganisms and the environment. The research was carried out in the Biological Sciences Laboratory at ESPOCH, and the active ingredients used were azadirachtin, propamocarb, dimethomorph, azoxystrobin, boscalid, cuprocalcium sulfate, difenoconazole, cartap hydrochloride, glyphosate and deltamethrin. Five concentrations of pesticides were used. A 50 μl suspension of B. subtilis was seeded in Petri dishes and incubated. The number of CFU/ml was recorded and the percentage of inhibition of each treatment. The active ingredient with the greatest inhibitory effect (88.75%) on B. subtilis growth was cuprocalcium sulfate, therefore, it was classified as moderately toxic. Difenoconazole, azoxystrobin, dimethomorph and boscalid were classified as slightly toxic, and propamocarb and glyphosate presented an inhibitory percentage of less than 29%, they were classified as harmless. The analysis of the qualitative characteristics of the B. subtilis colonies showed that no pesticide substantially affected their morphology. | |