Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
International Journal of Soil Science
  Year: 2011 | Volume: 6 | Issue: 1 | Page No.: 34-48
DOI: 10.3923/ijss.2011.34.48
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Bio-Absorption of Some Heavy Metals by Pleurotus tuber-regium Fr. Singer (An Edible Mushroom) from Crude Oil Polluted Soils Amended with Fertilizers and Cellulosic Wastes

E.M. Ogbo and J.A. Okhuoya

Abstract:
In this study, the fate of Pleurotus tuber-regium harvested from crude oil contaminated substrates is investigated with regard to the bio-absorption of heavy metals specifically-Fe, Mn, Co, Ni, Zn, Cu, Pb, Cr, Cd, Hg and As. The fungus was grown in crude oil contaminated soils amended with poultry litter, NPK-fertilizer, sawdust and shredded banana leaf blades. Harvested fruit bodies were digested with acids and heavy metal content determined. The metallic element content of contaminated soil was low for elements analyzed for with reference to recommended limits for them in normal soils. The only metal that was relatively higher than permissible concentration in soil was chromium. The contaminated soil was deficient of essential metallic elements like Zn, Mn and Cu. There was further reduction of these metallic elements caused by their uptake by the fungus. Cadmium, mercury and arsenic were not detected in the soils and fruit bodies of the mushroom. The transfer of metals from the soils to the mushroom varied with type of metal, its concentration and substrate composition. The transfer factor of the various metals varied from 10.47 in zinc to 0.31 in iron. Fruit bodies from substrates with poultry litter accumulated Fe, Pb and Cr to toxic levels. Mushrooms harvested from crude oil contaminated sites should be analyzed before consumption and properly disposed by incineration or recycling if concentration of metals is too high. The fungus can be used as a bio-indicator of heavy metal pollution and fungal remediated sites can be augmented with micronutrients.
PDF Fulltext XML References Citation Report Citation
 RELATED ARTICLES:
  •    Bioaccumulation of Heavy Metals by Zinc Resistant Bacteria Isolated from Agricultural Soils Irrigated with Wastewater
How to cite this article:

E.M. Ogbo and J.A. Okhuoya, 2011. Bio-Absorption of Some Heavy Metals by Pleurotus tuber-regium Fr. Singer (An Edible Mushroom) from Crude Oil Polluted Soils Amended with Fertilizers and Cellulosic Wastes. International Journal of Soil Science, 6: 34-48.

DOI: 10.3923/ijss.2011.34.48

URL: https://scialert.net/abstract/?doi=ijss.2011.34.48

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 

Curve Bottom