Hydrocarbon Utilization in Yeast Isolates Found to Grow in Association with Petroleum in a Polluted Ultisol of Midwestern Nigeria |
| |
Authors: | E O Ekundayo C O Obuekwe |
| |
Institution: | (1) Department of Soil Sciences, Faculty of Agriculture, University of Benin, Benin City, Nigeria;(2) Department of Microbiology, University of Benin, Benin City, Nigeria |
| |
Abstract: | The population counts of hydrocarbon-utilising yeasts weremonitored at six sampling stations in the Benin City municipalarea over a four-week period. Although the population countswere relatively constant in each locality, the highest countsoccurred in areas heavily polluted by domestic and industrialeffluents. A total of thirty-five hydrocarbon-degrading yeastswere isolated from soil at the sampling stations usingn-hexadecane as sole carbon source. The isolates were identifiedas belonging to the genera Candida (27 strains), Endomycopsis (4 strains). All the organisms grew on long-chainn-alkane, kerosene, diesel oil and crude oil but failed to growon short-chain n-alkane, aromatic and alicyclic hydrocarbons.Measurement of growth attributes of the isolates usingn-hexadecane, diesel oil and crude oil as substrates showed thatthe Candida species were better utilizers of hydrocarbonsubstrates relative to Endomycopsis and Schizosaccharomyces species. |
| |
Keywords: | Candida sp effluents Endomycopsis sp hydrocarbon petroleum pollution ultisol yeast-isolates |
本文献已被 SpringerLink 等数据库收录! |
|