Evaluation of Diuron Tolerance and Biotransformation by Fungi from a Sugar Cane Plantation Sandy-Loam Soil

Author(s)

Perissini-Lopes, Bruna ; Egea, Tassia Chiachio ; Monteiro, Diego Alves ; Vici, Ana Claudia ; Humberto Da Silva, Danilo Griinig ; de Oliveira Lisboa, Daniela Correa ; de Almeida, Eduardo Alves ; Parsons, John Robert ; Da Silva, Roberto ; Gomes, Eleni

• Document type: Journal article
• Source: Journal of Agricultural and Food Chemistry; v. 64, n. 49, p. 9268-9275, DEC 14 2016.
• Web of Science Citations: 2

Abstract

Microorganisms capable of degrading herbicides are essential to minimize the amount of chemical compounds that may leach into other environments. This work aimed to study the potential of sandy-loam soil fungi to tolerate the herbicide Herburon (50% diuron) and to degrade the active ingredient diuron. Verticillium sp. F04, Trichoderma virens F28, and Cunninghamella elegans B06 showed the highest growth in the presence of the herbicide. The evaluation of biotransformation showed that Aspergillus brasiliensis G08, Aspergillus sp. G25, and Cunninghamella elegans B06 had the greatest potential to degrade diuron. Statistical analysis demonstrated that glucose positively influences the potential of the microorganism to degrade diuron, indicating a cometabolic process. Due to metabolites founded by diuron biotransformation, it is indicated that the fungi are relevant in reducing the herbicide concentration in runoff, minimizing the environmental impact on surrounding ecosystems. (AU)

• FAPESP's process: 11/22387-9 - Evaluation of herbicides degradation by fungi from soil of sugar cane crops
• Grantee: Bruna Nogueira Perissini
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• FAPESP's process: 11/01577-4 - Study of the potential of herbicide diuron degradation by soil bacteria in microcosm systems
• Grantee: Tássia Chiachio Egea
• Support Opportunities: Scholarships in Brazil - Doctorate