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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
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Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.39 [2010] >
IJMS Vol.39(1) [March 2010] >
| Title: | Effect of addition of nitrogen, phosphorus and potassium fertilizers on biodegradation of crude oil by marine bacteria |
| Authors: | Vyas, Trupti K
Dave, B P |
| Keywords: | Bioremediation
Biodegradation
Marine environment
Crude oil
N, P and K fertilizers |
| Issue Date: | Mar-2010 |
| Publisher: | CSIR |
| Abstract: | Role
of marine bacteria viz. Marinococcus albus, Methylobacterium
mesophilicum and Nocardia
otitidiscaviarum in bioremediation of crude oil contaminated Alang sea
coast has been evaluated in the present study. Optimum concentrations of
inorganic nutrients N, P & K as urea, super phos and potash fertilizers
respectively on growth and degradation has been determined. Addition of optimum
concentrations of N (1%), P (0.5%) and K (0.01%) in combination significantly
enhanced biodegradation by 22 to 32%. Bioremediation studies indicated that a
Bacterial consortium (BC) exhibited maximum growth and degradation on addition
of optimum concentrations of N, P and K. Maximum effect in increase in growth
was on a BC (0.54 mg/ml) whereas, maximum effect on increase in degradation was
on N. otitidiscaviarum
(31.9%). However, complete degradation was not possible due to the presence of
recalcitrant molecules and accumulation of toxic metabolites during
biodegradation. Three isolates can successfully be used to formulate a
successful bioremediation strategy for oil contaminated marine environment. |
| Page(s): | 143-150 |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.39(1) [March 2010]
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