Efficacy of Disinfectants against Fusarium oxysporum f. sp. cubense Tropical Race 4 Isolated from La Guajira, Colombia
Autor: | Miguel Dita, Monica Betancourt, Paola Zuluaga, Luisa F. Izquierdo-García, Gustavo Rodríguez, Mauricio Soto-Suárez, Sandra L. Carmona |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Microbiology (medical)
Biocide Disinfectant Plant Science Colombia Foc TR4 strain 140038 isolated from La Guajira quaternary ammonium compounds (QACs) Article Conidium Chlamydospore Fusarium oxysporum Fusarium TR4 lcsh:QH301-705.5 disinfection Ecology Evolution Behavior and Systematics biology food and beverages Fusarium oxysporum f.sp. cubense wilt biology.organism_classification Fusarium wilt Spore Horticulture banana lcsh:Biology (General) glutaraldehyde |
Zdroj: | Journal of Fungi Volume 7 Issue 4 Journal of Fungi, Vol 7, Iss 297, p 297 (2021) |
ISSN: | 2309-608X |
DOI: | 10.3390/jof7040297 |
Popis: | Banana, the main export fruit for Colombia, is threatened by Fusarium wilt (FWB), caused by Fusarium oxysporum f. sp. cubense (Foc), tropical race 4 (TR4). Pathogen containment through disinfecting tools, machinery, shoes, and any means that may carry contaminated soil particles with proper disinfectants is at the forefront of disease management. In this study, the biocide efficacy of 10 commercial quaternary ammonium compounds (QACs) products and one based on glutaraldehyde (GA) were evaluated on both reproductive structures (microconidia and macroconidia) and survival spores (chlamydospores) of Foc TR4 (strain 140038) isolated from La Guajira, Colombia. QACs were evaluated at 1200 ppm and two exposure times: < 1 and 15 min in the absence or presence of soil. For GA disinfectant, four different concentrations (500, 800, 1200, and 2000 ppm) were evaluated at both contact times in the presence of soil. In the absence of soil, all QACs showed 100% biocidal efficiency against microconidia, macroconidia, and chlamydospores at both < 1 and 15 min. The presence of soil decreased the efficacy of disinfectants, but some of them, such as QAC3_1st, QAC7_4th, and QAC5_4th, showed 98%, 98%, and 100% efficacy against Foc TR4 chlamydospores, respectively, after < 1 min of contact time. For instance, the GA-based disinfectant was able to eliminate all Foc TR4 propagules after 15 min for all concentrations tested. |
Databáze: | OpenAIRE |
Externí odkaz: |