Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins.

The Ecuadorian Amazon rainforest stands out as one of the world's most biodiverse regions, yet faces significant threats due to oil extraction activities dating back to the 1970s in the northeastern provinces. This research investigates the environmental and societal consequences of prolonged petroleum exploitation and oil spills in Ecuador's Amazon. Conducted in June 2015, the study involved a comprehensive analysis of freshwater sediment samples from 24 locations in the Rio Aguarico and Napo basins.

Biodegradation of clopidogrel bisulfate by Pseudomonas aeruginosa and Pseudomonas putida strains isolated from Algerian wastewater.

The clopidogrel bisulfate was degraded under aerobic conditions by two bacterial strains isolated from industrial effluents in El-Harrach, Algeria. The sequencing of their 16S rRNA revealed that these two strains are Pseudomonas aeruginosa and Pseudomonas putida. The experiments showed that this consortium could remove clopidogrel bisulfate at high concentrations (5-1500 mg·L) within 96 h incubation period.

Bacterial diversity in aqueous/sludge phases within diesel fuel storage tanks.

Diesel fuel storage tanks are not hostile environments for microorganisms and tend to form sludges in the water deposited at the bottom of the tanks. The lack of nutrient, carbon and energy limitations within these habitats boost the abundance and the metabolic activity of microorganisms providing microbial hotspots with high growing rates of diesel degradation (0.10 ± 0.

Biodegradation of anionic surfactants by Alcaligenes faecalis, Enterobacter cloacae and Serratia marcescens strains isolated from industrial wastewater.

Pseudo-persistent organic pollutants, such as anionic surfactants (AS), are nowadays among the more complex problems that threaten the aquatic environments and other environmental compartments. The present work describes the identification and efficiency of a consortium, isolated from Algerian industrial wastewater, to remove three anionic surfactants (i.e.

Biodegradation of high-molecular-weight polycyclic aromatic hydrocarbons by a wood-degrading consortium at low temperatures.

This study evaluates the ability of two bacterial consortia (C2PL05 and BOS08), extracted from very different environments, to degrade low- (naphthalene, phenanthrene, anthracene) and high- (pyrene, perylene) molecular-weight polycyclic aromatic hydrocarbons (PAHs) at high (15-25 °C) and low (5-15 °C) temperature ranges. C2PL05 was isolated from a soil in an area chronically and heavily contaminated with petroleum hydrocarbons and BOS08 from decomposing wood in an unpolluted forest, free of PAHs. Bacterial consortia were described by cultivable and noncultivable techniques (denaturing gradient gel electrophoresis).

Isolation and genetic identification of PAH degrading bacteria from a microbial consortium.

Polycyclic aromatic hydrocarbons (PAH; naphthalene, anthracene and phenanthrene) degrading microbial consortium C2PL05 was obtained from a sandy soil chronically exposed to petroleum products, collected from a petrochemical complex in Puertollano (Ciudad Real, Spain). The consortium C2PL05 was highly efficient degrading completely naphthalene, phenanthrene and anthracene in around 18 days of cultivation. The toxicity (Microtox method) generated by the PAH and by the intermediate metabolites was reduced to levels close to non-toxic in almost 40 days of cultivation.