cLead bioaccumulation by pseudomonas species isolated from pig waste
Date
2012
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
U. P.
Abstract
Living organisms are exposed in nature to lead commonly in their ionized forms, which at different concentrations affect microbial population. This can have significant impact given that many microorganisms are essential parts of the decomposing food chain. Their presence in the atmosphere, soil and water, even in traces, can cause serious problems to all organisms. Microorganisms are known to interact with heavy metals through a number of mechanisms including intracellular accumulation. Pseudomonas species isolated from pig waste was exposed to different concentrations of lead solution within 24 hours. The percentage log survival / growth rate in the different concentrations of lead was determined periodically. Bioaccumulation of lead by the test isolate was determined in the graded lead concentrations (0, 1.10, 100. 500 μg/ml). The result showed that the growth of the isolate was progressively inhibited by lead in a dose dependent fashion. The isolate showed a potential to survive lead intoxication and accumulated the toxicant. Therefore, Pseudomonas species isolated from pig waste shows a promise for its use in bioremediation of lead polluted environments and can be used remedy the toxic effect of heavy metals on plants. This can be applied as organic manure together with the microorganism in heavy metal-polluted site to prevent heavy metal toxicity and to enhance the growth of plants.
Description
This research was done in collaboration with a staff of FUTO
Keywords
Bioaccumulation, lead, pseudomonas species, pig, waste, Department of Microbiology
Citation
Odu, N. N. & Akujobi, C. O. (2012). cLead bioaccumulation by pseudomonas species isolated from pig waste. Cancer Biology, 2(2), 38 - 44