| trophic and stoichiometric consequences of nutrification for the intertidal tropical zoanthid zoanthus sociatus. | zoanthids are conspicuous and abundant members of intertidal environments, where they are exposed to large environmental fluctuations and subject to increasing loads of anthropogenic nutrients. here we assess the trophic ecology and stoichiometric consequences of nutrient loading for symbiotic zoanthids inhabiting different intertidal habitats. more specifically, we analysed the stable isotope signature (δ(13)c and δ(15)n), elemental composition (c, n and p) and stoichiometry (c:n, c:p, n:p) of ... | 2017 | 28365021 |
| susceptibility to antifungal agents and enzymatic activity of candida haemulonii and cutaneotrichosporon dermatis isolated from soft corals on the brazilian reefs. | candida is a common fungus with the capacity to cause infections in humans. however, most studies have concentrated on clinical isolates and little is known about the identity, ecology and drug resistance of free living species/strains. here, we isolate eight strains of candida haemulonii and four strains of cutaneotrichosporon dermatis from three marine cnidarian zoanthids species (palythoa caribaeorum, palythoa variabilis and zoanthus sociatus) collected from brazilian coral reefs. strains wer ... | 2016 | 27282152 |
| low molecular weight compounds from zoanthus sociatus impair insulin secretion via ca(+2) influx blockade and cause glucose intolerance in vivo. | cnidarians comprise a taxon with a high biodiversity of cytolitic, neurotoxic and cardiotoxic compounds, which have not been studied on insulin release. we tested the effect of a crude extract of zoanthus sociatus (ellis, 1767) and the low molecular weight fraction of this extract on insulin secretion in isolated rat β-cells and also in a glucose tolerance test in vivo. we observed that the extract inhibited insulin release by reducing the amount secreted by individual β-cells and also by silenc ... | 2011 | 22155304 |
| sterol patterns of cultured zooxanthellae isolated from marine invertebrates: synthesis of gorgosterol and 23-desmethylgorgosterol by aposymbiotic algae. | quantitative sterol compositions of cultured zooxanthellae isolated from various pacific and atlantic invertebrate hosts: zoanthus sociatus (a zoanthid), oculina diffusa (a scleractian coral), tridacna gigas (a giant clam), melibe pilosa (a nudibranch), and aiptasia pulchella (a sea anemone) are reported. the results clearly demonstrate large differences in sterol patterns of zooxanthellae and that there is no obvious relationship between the taxonomic affiliation of the host and the sterol patt ... | 1982 | 16593195 |