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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Physiological differences in the crab Ucides cordatus from two populations inhabiting mangroves with different levels of cadmium contamination

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Author(s):
Ortega, Priscila ; Vitorino, Hector A. ; Moreira, Renata G. ; Pinheiro, Marcelo A. A. ; Almeida, Alaor A. ; Custodio, Marcio R. ; Zanotto, Flavia P.
Total Authors: 7
Document type: Journal article
Source: Environmental Toxicology and Chemistry; v. 36, n. 2, p. 361-371, FEB 2017.
Web of Science Citations: 12
Abstract

Crustaceans found in metal-contaminated regions are able to survive, and the authors investigated the physiological mechanisms involved by comparing populations from contaminated and noncontaminated areas. The objective of the present study was to measure the cellular transport of a nonessential metal (cadmium {[}Cd]) in gills and hepatopancreas of Ucides cordatus, together with cell membrane fluidity, metallothionein levels, and lipid peroxidation. The 2 populations compared were from a polluted and a nonpolluted mangrove area of SAo Paulo State, Brazil. The authors found, for the first time, larger Cd transport in gills and hepatopancreatic cells from crabs living in polluted mangrove areas. The cells also had lower plasma membrane fluidity, increased lipid peroxidation and less metallothionein compared to those from nonpolluted regions. The authors also found larger amounts of Cd in intracellular organelles of gills, but not in the hepatopancreas, from crabs in polluted regions. Therefore, in polluted areas, these animals showed higher Cd transport and lower plasma membrane fluidity and storage of Cd intracellularly in gill cells, whereas hepatopancreatic cells used metallothionein as their main line of defense. The findings suggest that crabs from polluted areas can accumulate Cd more easily than crabs from nonpolluted areas, probably because of an impairment of the regulatory mechanisms of cell membrane transport. Environ Toxicol Chem 2017;36:361-371. (c) 2016 SETAC (AU)

FAPESP's process: 09/15546-3 - Characterization of cadmium transport and its interaction with calcium on epithelial cells of Ucides cordatus, a mangrove crab
Grantee:Flavia Pinheiro Zanotto
Support Opportunities: Regular Research Grants