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Bioaccumulation of TBT and Its Cellular Toxic Effects on the Freshwater Prawn Macrobrachium rosenbergii.

Authors :
Revathi P
Iyapparaj P
Vasanthi RA
Munuswamy N
Palavesam A
Source :
Bulletin of environmental contamination and toxicology [Bull Environ Contam Toxicol] 2019 Nov; Vol. 103 (5), pp. 689-696. Date of Electronic Publication: 2019 Sep 10.
Publication Year :
2019

Abstract

To test the toxic effects of tributyltin (TBT), Macrobrachium rosenbergii were exposed to three concentrations of TBT viz. 10 ng/L, 100 ng/L and 1000 ng/L for 90 days. The bioaccumulation of TBT level varied in hepatopancreas based upon dose dependent manner. Histopathological results revealed the reduction in basement membrane thickness, disruption of the hepatopancreatic tubules and abnormal lumen in hepatopancreas of TBT treated prawns. The ultrastructure of the control prawn showed normal architecture of cellular organelles with prominent nuclei in hepatocytes. On the other hand, many vacuoles, irregular arrangements of microvilli, swollen mitochondria, distorted rough endoplasmic reticulum cisternaes and abnormal nucleus were seen in the TBT treated group. Further, the biochemical and vitellogenin content were altered remarkably due to TBT exposure. It directly indicated that TBT had conspicuously inhibited the vitellogenesis. Therefore, it was inferred that the administration of TBT has considerably affected the hepatopancreatic functions in M. rosenbergii.

Details

Language :
English
ISSN :
1432-0800
Volume :
103
Issue :
5
Database :
MEDLINE
Journal :
Bulletin of environmental contamination and toxicology
Publication Type :
Academic Journal
Accession number :
31506728
Full Text :
https://doi.org/10.1007/s00128-019-02711-0