Molecular Biology, Environmental Genomics (Meta-Genomics), Microbial Ecology, Microbial Genetics (Isolation, identification and sequencing). Environmental Biotechnology and petroleum PAHs biodegradation. Molecular Genetics and biotechnological techniques (Clone library, RFLP, RAPD, sequencing, phylogenetic, florescent in situ hybridization (FISH), PCR-DGGE, MPN-PCR, reverse transcriptase PCR , real time PCR (RT-PCR) & Monitoring functional catabolic genes and the approaches to link diversity with function in the environment).