Isolation and characterization of an aerobic denitrifying Bacillus sp. YX-6 from shrimp culture ponds

Probiotic Applications in Crustaceans

“…In relation to this, probiotics such as selected Bacillus spp. (Moriarty 1998;Song et al 2011), eventually coupled with other bacterial strains (Devaraja et al 2002;Matias et al 2002;Wang and He 2011), have been added to pond water with the aim of boosting mineralization of the organic matter and increasing water quality. Thus, bacterial species belonging to the Bacillus, Pseudomonas, Acinetobacter, Cellulomonas, Rhodopseudomonas, Aerobacter, Nitrosomonas and Nitrobacter genera are known to promote mineralization of organic wastes (Thomas et al 1992).…”

“…will oxidize nitrites and this process can help to prevent the build-up of toxic ammonia. Recently, a B. coagulans strain isolated from highly intensive shrimp ponds in China was also reported to show interesting aerobic denitrification characteristics for nitrite removal in shrimp ponds (Song et al 2011). Some of the benefits of using such bacterial products include the reduction of blue-green algal populations and of nitrate, nitrite, ammonia and phosphate levels, the increase of dissolved oxygen concentrations and the promotion of organic matter decomposition (Boyd 1995).…”

Nitrogen removal characteristics of a heterotrophic nitrifier Acinetobacter junii YB and its potential application for the treatment of high-strength nitrogenous wastewater

“…In addition, nitrite accumulation not only brought damages to aquatic life, but also inhibited bacterial denitrification activity (Lazaronva et al, 1994). Although nitrogen removal through nitrite is an efficient process for wastewater treatment, the isolation and characterization of aerobic denitrifiers that degrade nitrite are rarely reported (Song et al, 2011;Wan et al, 2011;Zhang et al, 2012). Therefore, study on nitrite as aerobic denitrifying substrate is required and urgent in practical nitrite pollution control.…”

Nitrogen-removal efficiency of a novel aerobic denitrifying bacterium, Pseudomonas stutzeri strain ZF31, isolated from a drinking-water reservoir

“…Nitrogen removal can be accomplished using physical, chemical, and biological techniques (Song et al, 2011). Biological methods, which do not generate secondary pollutants or residues, effectively and economically remove nitrogen from freshwater ecosystems and therefore are employed extensively worldwide (Gupta and Gupta, 1999;Song et al, 2011).…”

“…Biological methods, which do not generate secondary pollutants or residues, effectively and economically remove nitrogen from freshwater ecosystems and therefore are employed extensively worldwide (Gupta and Gupta, 1999;Song et al, 2011). However, conventional biological nitrogen removal processes consist of two steps, nitrification via autotrophs under aerobic conditions and denitrification via heterotrophs under anaerobic conditions.…”