| the role of symbiotic dinoflagellates in the temperature-induced bleaching response of the subtropical sea anemone aiptasia pallida. | coral bleaching involves the loss of symbiotic dinoflagellates (zooxanthellae) from reef corals and other cnidarians and may be a stress response of the host, algae or both. to determine the role of zooxanthellae in the bleaching process, aposymbiotic sea anemones from bermuda (aiptasia pallida) were infected with symbionts from other sea anemones (aiptasia pallida from florida, bartholomea annulata and condylactis gigantea). the expulsion of algae was measured during 24-h incubations at 25, 32 ... | 2001 | 11137501 |
| cutaneous stings from bartholomea annulata. | | 2001 | 11380212 |
| a venom extract from the sea anemone bartholomea annulata produces haemolysis and lipid peroxidation in mouse erythrocytes. | the haemolytic and peroxidative effects of crude extracts from bartholomea annulata, a common caribbean sea anemone, were investigated in erythrocytes isolated from nih male albino mice. significant concentration-dependent effects were found on both haemolysis (evaluated as release of haemoglobin) and lipid peroxidation (as a common index of oxidative damage to membrane lipids) in red blood cells. moreover, the incubation of erythrocytes in the presence of either a general antioxidant, reduced g ... | 2002 | 11960675 |
| isolation, partial purification and characterization of active polypeptide from the sea anemone bartholomea annulata. | in the sea anemone bartholomea annulata, four different types of cnidocysts, basitrichous isorhizas, microbasic p-mastigophores, microbasic amastigophores and spirocysts were identified. in relation to the efficacy of different substances to induce discharge of nematocysts we observe that distilled water induced more than 70% of microbasic p-mastigophores to discharge, whereas spirocysts were discharged in a lesser extent (approximately 20%). the median lethal dose (ld50) in mice was found after ... | 2006 | 16918711 |