Effects of repeated hemolymph withdrawals on the hemocyte populations and hematopoiesis in Pomacea canaliculata.

摘要: Pomacea canaliculata is a freshwater gastropod considered an invasive pest by several European, North American and Asiatic countries. This snail presents considerable resistance to pollutants may successfully face stressful events. Thanks the unusual possibility perform hemolymph collections without affecting its survival, P. good model study hematopoietic process hemocyte turnover in molluscs. Here we have analyzed effects of repeated withdrawals on circulating populations pericardial organs, i.e., heart, main vessels entering leaving heart ampulla, canaliculata. Our experiments revealed that were maintained constant after 3 performed 48 h. The tissue organization remained unaltered, whereas ampulla buffered acting as reservoir, original was progressively lost withdrawals. evidenced here for first time. It positioned within cavity, correspondence principle veins. Mitoses not influenced collections, hemocytes never presented mitotic activity.