BIODEGRADATION OF POLYNUCLEAR AROMATICHYDROCARBONS USING INDIGENOUS STRAINS OF BACTERIAFOR SUSTAINABLE SOIL DEVELOPMENT
2013
16S rRNA gene sequence analyses of the four isolates from a former industrial site
(OC1, OC2, OC3, and OC4) were assigned to the genus, Enterobacter (OC1) and
Pseudomonas (OC2, OC3, and OC4). The degradation and growth behaviour of the
four isolates were investigated on naphthalene, fluoranthene, pyrene and chrysene. All
the strains utilized naphthalene, fluoranthene, chrysene but pyrene partially, as sole
sources of carbon and energy. The time course studies using relative concentration>
100, >115, > 89 and> 12 ppm for naphthalene, fluoranthene, pyrene and chrysene
respectively, resulted in rapid exponential increases in cell numbers and concomitant
disappearance of the test substrates. Naphthalene was degraded between the range of
25 and 99%, while chrysene degradation ranged between 35 and 69%, pyrene 4 -21%
and fluoranthene 7 -19 %. Our results suggest that contaminated, former industrial
sites contain a capable microbial community that may be used for bioremediation of
the site for sustainable soil development
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
0
Citations
NaN
KQI