Evaluation of trace element contamination using Armadillo officinalis Duméril, 1816 (Crustacea, Isopoda) as a tool: An ultrastructural study.

Microsc Res Tech

Faculty of Sciences of Tunis, LR18ES06 Laboratory of Diversity, Management and Conservation of Biological Systems, University of Tunis El Manar, Tunis, Tunisia.

Published: December 2019

To estimate trace element bioaccumulation in Armadillo officinalis, specimens were collected from Ghar El Melh lagoon then exposed for 3 weeks in contaminated sediments with copper, zinc, and cadmium. From the first week until the end of the experiment, a decrease in A. officinalis growth related to the increase of Cd concentration in the sediment was recorded. However, a mass gain was highlighted under Cu and Zn exposures. At the end of experiment, body metal concentrations were measured using flame atomic emission spectrometry. Results of the bioaccumulation factor showed that the species could be considered as a macroconcentrator of copper (BAF > 2) and a deconcentrator of zinc (BAF < 2). Microscopy observations of hepatopancreas cells showed morphological and histological changes even at the lowest concentration. They consisted in the microvillus border destruction, lipid droplets modifications, trace element accumulation, and the condensation of the majority of cellular organelles. The degree of these alterations was found to be dose-dependent. Through these results, the isopod A. officinalis could be used as relevant monitor organisms for soil metal contamination.

Download full-text PDF

Source
http://dx.doi.org/10.1002/jemt.23371DOI Listing

Publication Analysis

Top Keywords

trace element
8
armadillo officinalis
8
evaluation trace
4
element contamination
4
contamination armadillo
4
officinalis duméril
4
duméril 1816
4
1816 crustacea
4
crustacea isopoda
4
isopoda tool
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!