Characterization of novel diesel-degrading strains Acinetobacter haemolyticus MJ01 and Acinetobacter johnsonii MJ4 isolated from oil-contaminated soil.
The diesel-degrading strains, designated as MJ01 and MJ4, were isolated from oil-contaminated soil in Daejeon (South Korea) and were taxonomically characterized using a polyphasic approach and their diesel oil degradation abilities were analyzed. The isolates MJ01 and MJ4 were identified as Acinetobacter haemolyticus and Acinetobacter johnsonii, respectively, based on their 16S rDNA gene sequences, DNA-DNA relatedness, fatty acid profiles and various physiological characteristics. Strains MJ01 and MJ4 were able to use diesel oil as the sole carbon and energy source. Both strains could degrade over 90% of diesel oil with an initial concentration of 20,000 mg/l after incubation for 7 days, the most significant degradation occurred during the first 3 days. To our knowledge, this is the first report on diesel oil-degrading microorganisms among bacterial strains belonging to A. haemolyticus and A. johnsonii.
Research and Development Division, H-Plus Eco Ltd., BVC 301, KRIBB, Eoeun-dong, Yuseong-gu, Daejeon 305-333, Republic of Korea. mgeneli@nate.com
Myungjin
M
Lee
Sung-Geun
SG
Woo
Leonid N
LN
Ten
D000150:Acinetobacter / Q000145:classification / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism*; D015373:Bacterial Typing Techniques; D001711:Biotransformation; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis; D005742:Gasoline; D007723:Korea; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D009821:Oils / Q000378:metabolism*; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D012989:Soil Pollutants; D013997:Time Factors
D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D005742:Gasoline; D009821:Oils; D012336:RNA, Ribosomal, 16S; D012989:Soil Pollutants