Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Zinc effect on the sea urchin Paracentrotus lividus immunological competence |
| Abstract | Pollution by heavy metals has become one of the most important problems in marine coastal areas as a consequence of anthropogenic inputs. Among metal contaminants, zinc, being considered not very toxic, is sometimes released into the sea in appreciable quantities and its concentration is loosely regulated. In this work we analyzed the effects of a high zinc concentration on the sea urchin Paracentrotus lividus immune system. In particular, after 24 h of zinc treatment, we evaluated coelomocytes morphology and composition as well as the zinc influence on some humoral parameters such as hemolysis, lysozyme-like activity and antibacterial activity on Vibrio alginolyticus. Our results evidenced that the presence of zinc affected both cellular and acellular components of the sea urchin immune system. The P. lividus coelomocytes changed in morphology and number; moreover, the amebocytes changed from a petaloid to a filipodial-like shape and the red spherula cells increased in number. Among the considered humoral effectors lysozyme-like activity and antibacterial activity on V. alginolyticus decreased in short-term to zinc treatment. The modifications in the sea urchin immunological competence might give an early indication of disease susceptibility thus suggesting to consider the examined defence mechanisms as potential biological indicators of metal pollution |
| Source | Chemosphere 89 (5), pp. 563–568 |
| Keywords | Sea urchinLysozyme-like activityVibrio alginolyticusRed cellsAmebocytes |
| Journal | Chemosphere |
| Editor | Elsevier, Oxford, Regno Unito |
| Year | 2012 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.chemosphere.2012.05.052 |
| Authors | PAGLIARA P., STABILI L. |
| Text | 215320 2012 10.1016/j.chemosphere.2012.05.052 ISI Web of Science WOS WOS 000308055900012 Sea urchin Lysozyme like activity Vibrio alginolyticus Red cells Amebocytes Zinc effect on the sea urchin Paracentrotus lividus immunological competence PAGLIARA P., STABILI L. IAMC CNR U.O.S. di Taranto DiSTeBA Universita del Salento Pollution by heavy metals has become one of the most important problems in marine coastal areas as a consequence of anthropogenic inputs. Among metal contaminants, zinc, being considered not very toxic, is sometimes released into the sea in appreciable quantities and its concentration is loosely regulated. In this work we analyzed the effects of a high zinc concentration on the sea urchin Paracentrotus lividus immune system. In particular, after 24 h of zinc treatment, we evaluated coelomocytes morphology and composition as well as the zinc influence on some humoral parameters such as hemolysis, lysozyme like activity and antibacterial activity on Vibrio alginolyticus. Our results evidenced that the presence of zinc affected both cellular and acellular components of the sea urchin immune system. The P. lividus coelomocytes changed in morphology and number; moreover, the amebocytes changed from a petaloid to a filipodial like shape and the red spherula cells increased in number. Among the considered humoral effectors lysozyme like activity and antibacterial activity on V. alginolyticus decreased in short term to zinc treatment. The modifications in the sea urchin immunological competence might give an early indication of disease susceptibility thus suggesting to consider the examined defence mechanisms as potential biological indicators of metal pollution 89 Published version Articolo in rivista Elsevier 0045 6535 Chemosphere Chemosphere Chemosphere Chemosphere. Chemosphere. Environmental chemistry, Chemosphere. Persistent organic pollutants and dioxins, Chemosphere. Environmental toxicology and risk assessment, Chemosphere. Science for Environmental toxicology, loredana.stabili STABILI LOREDANA TA.P04.029.002 Utilizzazione di biomasse e sostanze attive da organismi marini biotecnologie per loo sviluppo di nuovi bio materiali e composti bioattivi |