Sea anemonesare ocean-dwelling members of the phylum Cnidaria. They are invertebrates belonging to the class of Anthozoa. The name Cnidaria (with a silent ‘c’) refers to the cnidae, or nematocysts, that is, the cellular entity of the venom apparatus, which all Cnidarians possess. The phyl...
In zoology, the word was applied to a type of sea creature from 1773 (probably short forsea anemone, which is by 1742). Related:Anemonic. Greekakalēphē"sea-anemone," also "stinging nettle," is of uncertain origin. Sea anemones are eaten, fried in oil, throughout the Mediterranean and...
The most studied sea anemone actinoporins are sticholysins (Stns), produced by Stichodactyla helianthus [19,50,51,52], equinatoxins (Eqts), from Actinia equina [53,54], and fragaceatoxins (Fras), from Actinia fragacea [12,13,14,24,55]. StnII was in fact one of the first actino...
short spines. The sea urchin's mouth (called Aristotle's lantern) is located on its underside, and its anus is on its top side, in a spot that is not covered with spines. Despite their immobile appearance, sea urchins can move relatively quickly, like asea star, using their long...
(corals, sea anemones, hydroids and jellyfish). Using a combination of gene expression analysis, electrophysiological and functional studies combined with pharmacological inhibition as well as genetic knockout in the model cnidarianNematostella vectensis, we reveal an unanticipated role for a proton-...
Sea anemones (order Actiniaria) rely on venom for their survival, deploying this chemical weapon during encounters with prey, predators and competitors [1]. In contrast to other studied cnidarian groups, however, the venom of Actiniarians is dominated by peptide neurotoxins [2,3]. These neuroto...
Actinoporins (APs) from sea anemones are ~ 20 kDa pore forming toxins with a β-sandwich structure flanked by two α-helices. The molecular mechanism of APs pore formation is composed of several well-defined steps. APs bind to membrane by interfacial binding site composed of several aromatic ...
In fact, it is the polyp form in sea anemones and some anthozoans (including the medusa form in most of the cnidarians (coelenterates) that produce planulae. Pleustonic The 'pleuston' refers to marine organisms that are held at the surface of the water by some kind of floating mechanism...
However, they are not the only creatures to inhabit the anemones; porcelain crabs can be seen hiding here along with shrimps. Damselfish such as the 3 spot dascyllus are also seen everywhere. Anemone Reef's proximity to Phuket Shark Point means you are likely to see a leopard shark ...
enteries of sea anemones in the superfamily Metridioidea [22] are modified to include threadlike distal extensions called “acontia” which are replete with cnidocytes. Interestingly, the suite of cnidocytes that populate the acontia can be distinct from that of the mesenteries, their tissue ...