[Cell-surface hydrophobicity and degradation characteristics of hydrophobic hydrocarbon degrading bacteria].
Three high efficient hydrocarbon degrading bacteria named HDB-1, HDB-2, HDB-3 were separated from the oil contaminant soil. This paper studied on the cell-surface hydrophobicity of these three bacteria and environment influence factor by MATH,and the results show that the xylene-water two-phase system is suitable for studying the cell-surface hydrophobicity of three bacteria; the cell-surface hydrophobicities of HDB-1, HDB-2 and HDB-3 are respectively 68.8%, 57.4% and 64.1%; the hydrophobicity changed with the difference of cultivation and time,carbon source, temperature and pH value; the removal ratio of 1 000 mg/L oil content for 6 day can reach 91.6%, 64.5% and 79.8%. The hydrophobicity is related definitely with the degradation of the organic pollutant, and the degradation rate of hydrophobic organic by the bacteria of high hydrophobicity is quicker than that by the bacteria of low hydrophobicity.
Zhao
Qing
Q
Department of Environment Science, Wuhan University, Wuhan 430079, China.
Zhang
Jia-Yao
JY
Chen
Lan-Zhou
LZ
Zheng
Jin-Xiu
JX
Zhao
Lei
L
Yin
Hong-Mei
HM
D001419:Bacteria / Q000378:metabolism*; D018407:Bacterial Physiological Phenomena; D001673:Biodegradation, Environmental; D006838:Hydrocarbons / Q000378:metabolism*; D057927:Hydrophobic and Hydrophilic Interactions; D010578:Petroleum / Q000378:metabolism; D013499:Surface Properties
D006838:Hydrocarbons; D010578:Petroleum