释义 |
saxitoxin Biochem.|sæksɪˈtɒksɪn| [f. mod.L. Saxi-domus, name of a genus of clams (f. L. sax-um rock + -i- + domus home) + toxin.] A toxic alkaloid (C10H17O4N7.2HCl) synthesized by dinoflagellates of the genus Gonyaulax (which cause ‘red tides’) and accumulated by molluscs which feed on these, which thereby become toxic to man.
1962Jrnl. Amer. Chem. Soc. LXXXIV. 2266/1 Saxitoxin, the paralytic poison isolated from toxic Alaska butter clams (Saxidomus giganteus),..is among the most toxic known substances. 1968New Scientist 27 June 706/2 PSP [paralytic shellfish poison] is now known as saxitoxin and there is an extensive literature which dates back at least to the year 1778. Ibid., It would appear that saxitoxin is a perhydropurine derivative into which are incorporated two guanidino moieties. 1977Sci. Amer. Dec. 30/3 A tiny dose of saxitoxin—the ‘red tide’ toxin—can kill a man who weighs 500 million times as much as it does. |