The development of biofilms on modified natural zeolites was investigated with purpose to obtain biocomposites with biodegradation activity towards pesticides MCPA (2-methyl-4-chlorophenoxyacetic acid) and glyphosate (N-(phosphonomethyl)glycine) for potential application in bioaugmentation of polluted agricultural soils. Microbial communities were selected from agricultural pesticide-contaminated soil/water samples and enriched on the basis of their ability to biodegrade the pesticides. In order to enhance affinity of microbial communities to the support material, the natural mineral zeolite was modified by nontoxic environmentally friendly cations (Li+, Na+, K+, NH4+, H+, Mg2+, Ca2+, Fe3+) by methods preserving its structure and characterised using powder XRD, surface area measurement and chemical composition analysis. Kinetics of pesticide degradation by the biocomposites was studied in liquid media. Results showed that according to zeolite modifications, the microbial activity and biodiversity changed. The best biodegradation rate of MCPA and glyphosate reached 0.12-0.13 mg/h with half-life of 16-18 h, which is considerably quicker than observed in natural environment. However, in some cases, biodegradation activity towards ...Continue Reading
Investigation of the denitrification activity of immobilized Pseudomonas butanovora cells in the presence of different organic substrates
Characterisation of bacterial cultures enriched on the chlorophenoxyalkanoic acid herbicides 4-(2,4-dichlorophenoxy) butyric acid and 4-(4-chloro-2-methylphenoxy) butyric acid
Effect of solution ionic strength and iron coatings on mineral grains on the sorption of bacterial cells to quartz sand.
Degradation of 4-chloro-2-methylphenoxyacetic acid in top- and subsoil is quantitatively linked to the class III tfdA gene
Direct analysis of tfdA gene expression by indigenous bacteria in phenoxy acid amended agricultural soil
CLIP: construction of cDNA libraries for high-throughput sequencing from RNAs cross-linked to proteins in vivo
Biotransformation of the neonicotinoid insecticides imidacloprid and thiamethoxam by Pseudomonas sp. 1G
Effects of repeated glyphosate applications on soil microbial community composition and the mineralization of glyphosate
Introducing mothur: open-source, platform-independent, community-supported software for describing and comparing microbial communities
The effect of structure and a secondary carbon source on the microbial degradation of chlorophenoxy acids
Alphaproteobacteria dominate active 2-methyl-4-chlorophenoxyacetic acid herbicide degraders in agricultural soil and drilosphere
The effect of various treatment conditions on natural zeolites: ion exchange, acidic, thermal and steam treatments
Persistence and degrading activity of free and immobilised allochthonous bacteria during bioremediation of hydrocarbon-contaminated soils
Comparing metabolic functionalities, community structures, and dynamics of herbicide-degrading communities cultivated with different substrate concentrations
Denitrification performance and biofilm characteristics using biodegradable polymers PCL as carriers and carbon source
Succession of bacterial and fungal 4-chloro-2-methylphenoxyacetic acid degraders at the soil-litter interface
Reduced leaching of the herbicide MCPA after bioaugmentation with a formulated and stored Sphingobium sp
Evaluation of three activated carbons for combined adsorption and biodegradation of PCBs in aquatic sediment
Influence of the physicochemical properties of inorganic supports on the activity of immobilized bacteria for water denitrification
A study on metabolic prowess of Pseudomonas sp. RPT 52 to degrade imidacloprid, endosulfan and coragen
Bioremediation potential of glyphosate-degrading Pseudomonas spp. strains isolated from contaminated soil
Environmental forensics in groundwater coupling passive sampling and high resolution mass spectrometry for screening
Mg(2+)/Ca(2+) promotes the adhesion of marine bacteria and algae and enhances following biofilm formation in artificial seawater
Impacts of Repeated Glyphosate Use on Wheat-Associated Bacteria Are Small and Depend on Glyphosate Use History
Natural and surfactant modified zeolites: A review of their applications for water remediation with a focus on surfactant desorption and toxicity towards microorganisms
Glyphosate Shapes a Dinoflagellate-Associated Bacterial Community While Supporting Algal Growth as Sole Phosphorus Source
Identification of microbial species present in a pesticide dissipation process in biobed systems using typical substrates from southeastern Mexico as a biomixture at a laboratory scale
Modulation of cytotoxicity by consecutive adsorption of tannic acid and pesticides on surfactant functionalized zeolites
Biodegradation of organophosphorus pesticides in moving bed biofilm reactors: Analysis of microbial community and biodegradation pathways.
Biodegradation of tetracycline using hybrid material (UCPs-TiO2) coupled with biofilms under visible light.
Biofilm & Infectious Disease
Biofilm formation is a key virulence factor for a wide range of microorganisms that cause chronic infections.Here is the latest research on biofilm and infectious diseases.