Publications by authors named "Maricy R L Bonfa"
Fipronil is a broad-spectrum insecticide with remarkable efficacy that is widely used to control insect pests around the world. However, its extensive use has led to increasing soil and water contamination. This fact is of concern and makes it necessary to evaluate the risk of undesirable effects on non-target microorganisms, such as the microbial community in water and/or soil.
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- Phenol is a toxic compound widely found in industrial wastewaters, which often have high salt concentrations.
- Three halophilic bacteria (Halomonas organivorans, Arhodomonas aquaeolei, and Modicisalibacter tunisiensis) can effectively grow and biodegrade phenol in hypersaline conditions (up to 100 g/L of salt).
- The study identified key genes related to phenol degradation in these bacteria, particularly focusing on protocatechuate 3,4-dioxygenase from H. organivorans, showing similarity in its amino acid structure to other microorganisms despite significant sequence variation.
Ten halophilic Archaea (Haloarchaea) strains able to degrade aromatic compounds were isolated from five hypersaline locations; salt marshes in the Uyuni salt flats in Bolivia, crystallizer ponds in Chile and Cabo Rojo (Puerto Rico), and sabkhas (salt flats) in the Persian Gulf (Saudi Arabia) and the Dead Sea (Israel and Jordan). Phylogenetic identification of the isolates was determined by 16S rRNA gene sequence analysis. The isolated Haloarchaea strains were able to grow on a mixture of benzoic acid, p-hydroxybenzoic acid, and salicylic acid (1.
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