Bacterial population study in oil-contaminated and uncontaminated soils
Soil provides a vital habitat primarily for bacteria to continue the process of biogeochemical cycle. The remarkable metabolic diversity and capacity of the soil bacteria is increasingly being harnessed for the benefit of humankind. One of the beneficial spin-offs from the understanding of the met...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Zibeline International Publishing
2018
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/43191/ http://irep.iium.edu.my/43191/ http://irep.iium.edu.my/43191/ http://irep.iium.edu.my/43191/1/43191_Bacterial%20population%20study%20in%20oil-contaminated.pdf |
| Summary: | Soil provides a vital habitat primarily for bacteria to continue the process of biogeochemical cycle. The remarkable
metabolic diversity and capacity of the soil bacteria is increasingly being harnessed for the benefit of humankind.
One of the beneficial spin-offs from the understanding of the metabolism of soil microbes is the development of
bioremediation for contaminated soils. Investigation on bacterial diversity was conducted on several types of
samples for both contaminated and uncontaminated soils. The soil texture test determined that the soil samples
obtained were sandy, silt and clay, respectively. The microbial population were enumerated using colony counting
while bacteria characterisation and identification were performed using Gram staining, morphological and
biochemical analysis. This study indicated that microbial population is higher in hydrocarbon-contaminated soils
compared to uncontaminated soils. On the other hands, the bacterial diversity is lower in contaminated soils
compared to uncontaminated soils. The study also portrays that Gram-positive bacteria, Staphylococcus spp was
dominant in untreated soils while Gram negative bacteria, Pseudomonas spp was dominant genus in hydrocarbon
contaminated soil. |
|---|