Journal of Environmental Biology

Histopathological alterations in hepatopancreas of Gafrarium divaricatum

exposed to xylene, benzene and gear oil-WSF

Author Details

Shirley Agwuocha

Department of Zoology, Thakur College of Science, Kandivali (East), Mumbai - 400 101, India

B.G. Kulkarni

Department of Zoology, Institute of Science, 15 Madam Cama Road, Mumbai - 400 032, India

A.K. Pandey

(Corresponding author)

National Bureau of Fish Genetic Resources, Canal Ring Road, Lucknow - 226 002, India

e-mail: akpandey_cifa@yahoo.co.in

Publication Data

Paper received:

27 June 2009

Revised received:

30 November 2009

Re-revised received:

28 February 2010

Accepted:

19 April 2010

Abstract

Gafrarium divaricatum were exposed to xylene (4.25 and 8.50 mg l^-1), benzene (4.35 and 8.70 mg l^-1) and gear oil-WSF (1 and 2%) for 30 days. Chronic exposure of clams to the pollutants resulted in loss of bubbling epithelium, reduction in cytoplasm volume and density, fusion of cell membranes and nuclei forming darkly stained area at basal part of the cells. Disintegration of basement membrane due to damaged epithelial cells, disruption of inner lining of tubule, formation of necrotic spaces, separation of epithelial cells from basement membrane, increase in internal luminar area, complete necrosis of epithelial cells as well as? occurrence of cell debris in between the tissue were also observed in the clams due to chronic exposure of the? toxicants.

Key words

Hepatopancreas, Gafrarium divaricatum, Toxicity, Benzene, Xylene, Gear oil-WSF

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