TY - JOUR
T1 - Bioavailable metals and cellular effects in the digestive gland of marine limpets living close to shallow water hydrothermal vents
AU - Cunha, Luís
AU - Amaral, André
AU - Medeiros, Vera
AU - Martins, Gustavo M.
AU - Wallenstein, Francisco F.M.M.
AU - Couto, Ruben P.
AU - Neto, Ana I.
AU - Rodrigues, Armindo
PY - 2008/4/1
Y1 - 2008/4/1
N2 - The pressure exerted by shallow water hydrothermal vents on edible gastropods and their cellular responses triggered by these stresses are almost unknown. The aims of this study were to evaluate the bioavailability of metals in the Macaronesian endemic limpet Patella candei gomesii living close to shallow water hydrothermal vents, and the structural differences in their digestive gland as well as the levels of apoptosis in that organ. Limpets were sampled in four sites, two with the presence of hydrothermalism and the other two without it. Whole body concentrations of several metals (Ca, Cd, Cs, Co, Cu, Fe, Hg, Mg, Mn, Pb, Rb, Se, Sr, and Zn) were obtained, morphometry analysis of the digestive gland and TUNEL test for apoptosis were also performed. Results revealed that the presence of shallow water hydrothermal vents is a source of chronic metal stress to limpets, imposing modifications in the morphometry and cell composition of the digestive gland of those limpets that may constitute cell and tissue adaptations to the environment they live in. This study sets up new baseline data for further research on the influence of shallow water hydrothermal vents over communities living in these habitats.
AB - The pressure exerted by shallow water hydrothermal vents on edible gastropods and their cellular responses triggered by these stresses are almost unknown. The aims of this study were to evaluate the bioavailability of metals in the Macaronesian endemic limpet Patella candei gomesii living close to shallow water hydrothermal vents, and the structural differences in their digestive gland as well as the levels of apoptosis in that organ. Limpets were sampled in four sites, two with the presence of hydrothermalism and the other two without it. Whole body concentrations of several metals (Ca, Cd, Cs, Co, Cu, Fe, Hg, Mg, Mn, Pb, Rb, Se, Sr, and Zn) were obtained, morphometry analysis of the digestive gland and TUNEL test for apoptosis were also performed. Results revealed that the presence of shallow water hydrothermal vents is a source of chronic metal stress to limpets, imposing modifications in the morphometry and cell composition of the digestive gland of those limpets that may constitute cell and tissue adaptations to the environment they live in. This study sets up new baseline data for further research on the influence of shallow water hydrothermal vents over communities living in these habitats.
KW - Apoptosis
KW - Azores
KW - Exposure biomarkers
KW - Mollusk
KW - Patella candei gomesii
KW - TUNEL
U2 - 10.1016/j.chemosphere.2007.11.022
DO - 10.1016/j.chemosphere.2007.11.022
M3 - Article
C2 - 18166212
AN - SCOPUS:40949092764
SN - 0045-6535
VL - 71
SP - 1356
EP - 1362
JO - Chemosphere
JF - Chemosphere
IS - 7
ER -