Table of Contents
Advances in Environmental Chemistry
Volume 2014, Article ID 750408, 11 pages
Research Article

Mucin Reactivity after Acute Exposure to Mercury and Zinc Chloride in Neurocytes of Freshwater Snail Bellamya bengalensis: A Histochemical Study

1Shri Shiv Shahu College, Sarud, Kolhapur 416 214, India
2Department of Zoology, Shivaji University, Kolhapur 416 004, India

Received 30 June 2014; Revised 19 September 2014; Accepted 19 September 2014; Published 2 October 2014

Academic Editor: Jesus Simal-Gandara

Copyright © 2014 Sunil Londhe and Nitin Kamble. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Central nervous system (CNS) of gastropods is extensively studied for its pathology and immunocytology; there is scanty information on histochemical alterations in neuronal cells due to heavy metal. This study was designed to investigate histochemical alterations in cerebral neurons of freshwater snail Bellamya bengalensis after intoxication with mercuric chloride (HgCl2) and zinc chloride (ZnCl2). As per chemical components cerebral ganglia of Bellamya bengalensis showed three different zones, namely, periganglionic connective tissue sheath, interperikaryonal space, and neuropil. After intoxication, increased acidic content in extracellular matrix (ECM) of neuronal cells was found. These alterations were directly proportional to time of exposure period. From results, HgCl2 proved its highly toxic nature over chemical composition of cerebral neuronal cells of freshwater snail Bellamya bengalensis compared to ZnCl2 intoxication.