Discharge of coke-oven wastewater to the environment may cause severe contamination to it and also threaten the flora and fauna, including human beings. Hence before dumping it is necessary to treat this dangerous effluent in order to minimize the damage to the environment. Conventional technologies have inherent drawbacks however, biological treatment is an advantageous alternative method. In ...

A combined phylogenetic and multilocus DNA sequence analysis of 26 Pseudomonas stutzeri strains distributed within the 9 genomovars of the species has been performed. Type strains of the two most closely related species (P. balearica, former genomovar 6, and P. mendocina), together with P. aeruginosa, as the type species of the genus, have been included in the study. The extremely high genetic ...

Studies on the process of nitrite reduction by cell-free extracts of denitrifying bacteria could materially contribute to our knowledge of its mechanism. Such investigations have so far been limited to those of Yamagata (1) with Bacillus pyocyaneus (Pseudomonas aeruginosa) and of Robinson et al. (‘2) with Micrococcus haZodenitri$cans. Neither of these authors has examined the products of the re...

Studies on the process of nitrite reduction by cell-free extracts of denitrifying bacteria could materially contribute to our knowledge of its mechanism. Such investigations have so far been limited to those of Yamagata (1) with Bacillus pyocyaneus (Pseudomonas aeruginosa) and of Robinson et al. (‘2) with Micrococcus haZodenitri$cans. Neither of these authors has examined the products of the re...

Oily residues that are generated in normal ship operation are considered hazardous wastes. A biodegradation assay with autochthonous microbiota of Bilge Waste Oily Phase (BWOP) was performed in a bioreactor under controlled conditions. Petroleum, diesel oil, and PAH degraders were isolated from bilge wastes. These bacteria belong to the genus Pseudomonas and are closely related to Pseudomonas s...

Phylogenetic relationships among a number of strains belonging to the genus Pseudomonas were explored by the use of in vitro deoxyribonucleic acid (DNA) hybridization. The fluorescent nomenspecies (P. fluorescens, P. putida, P. aeruginosa, P. cichorii, P. syringae, and related species), as well as the nonfluorescent species P. stutzeri, P. mendocina, P. alcaligenes, and P. pseudoalcaligenes, we...

A pirin-like protein from a marine denitrifying bacterium, Pseudomonas stutzeri Zobell has been heterologously expressed in E. coli and purified to homogeneity with metal-affinity and gel filtration chromatographies. The recombinant pirin-like protein has exhibited quercetinase activities upon the incorporation of a divalent metal ion, while its biological role remains unclear. In the case of C...