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Effect of addition of nitrogen, phosphorus and potassium fertilizers on biodegradation of crude oil by marine bacteria

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Title Effect of addition of nitrogen, phosphorus and potassium fertilizers on biodegradation of crude oil by marine bacteria
 
Creator Vyas, Trupti K
Dave, B P
 
Subject Bioremediation
Biodegradation
Marine environment
Crude oil
N, P and K fertilizers
 
Description 143-150
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.
 
Date 2010-04-28T07:03:05Z
2010-04-28T07:03:05Z
2010-03
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/8558
 
Language en_US
 
Publisher CSIR
 
Source IJMS Vol.39(1) [March 2010]