Isolation and characterization of Pseudomonas sp. strain ONBA-17 degrading o-nitriobenzaldehyde.
Aerobic bacteria degrading o-nitrobenzaldehyde (ONBA) were isolated from activated sludges. One of the isolates, ONBA-17, was identified as Pseudomonas sp. The isolate could grow on ONBA as its sole source of carbon and nitrogen. Further studies demonstrated that the strain was a moderately halophilic bacterium and capable of degrading benzoic acid, 2-nitrophenol, 2-aminophenol, 4-hydroxybenzoic acid, and 4-dimetylaminobenzaldehyde. It could completely degrade 100 mg L(-1) ONBA at a range of pH 6-8 in 48 h at 30 degrees C, and up to 400 mg L(-1) after 288 h. The strain showed potential to be a good candidate for biotreatment of industrial wastewaters containing ONBA due to its salt-tolerance ability, multiresistance to some heavy metals and antibiotics, and the abilities of degradation of aromatic compounds. These findings may help in developing a process for ONBA-containing industrial wastewater treatment.
Fang-Bo
Yu
Y
Department of Microbiology, Key Laboratory for Microbiological Engineering of Agricultural Environment of Ministry of Agriculture, Nanjing Agricultural University, 6 Tongwei Road, Nanjing city, Jiangsu Province, People's Republic of China, 210095.
Biao
Shen
S
Shun-Peng
Li
L
D001547:Benzaldehydes / Q000378:metabolism*; D001673:Biodegradation, Environmental; D004275:DNA, Ribosomal / Q000235:genetics; D007220:Industrial Waste / Q000032:analysis; D010802:Phylogeny; D011549:Pseudomonas / Q000145:classification / Q000254:growth & development / Q000302:isolation & purification* / Q000378:metabolism*; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012722:Sewage / Q000382:microbiology*; D014874:Water Pollutants, Chemical / Q000378:metabolism
D001547:Benzaldehydes; D004275:DNA, Ribosomal; D007220:Industrial Waste; D012336:RNA, Ribosomal, 16S; D012722:Sewage; D014874:Water Pollutants, Chemical; C043850:2-nitrobenzaldehyde