| 释义 |
sporidesmin Biochem.|spɒrɪˈdɛzmɪn|
Also sporo-.
[f. mod.L. Sporidesmium, generic name of the fungus from which the first such substance was isolated (H. F. Link 1825, in D. C. L. Willdenow Linnæus' Species Plantarum (ed. 4) VI. ii. 120), f. sporidium (or spori-, comb. form of Gr. σπορά spore) + Gr. δεσµ-ός band, bundle: see -in1.]
Any of a class of toxins that are produced by fungi and cause various diseases of animals, esp. sheep, when ingested.
1959Synge & White in Chem. & Industry 5 Dec. 1547/1 We propose the name ‘sporidesmin’ for the substance now described. 1963Jrnl. Chem. Soc. 3172 On alkaline degradation ammonia, methylamine, and a red ketone were isolated from both sporidesmins. 1969Edington & Gilles Path. in Tropics xi. 486 Various toxic substances have been isolated from moulds contaminating animal foodstuffs during this century, sporodesmin isolated from Pithymyces chartarum and causing liver necrosis and cirrhosis in sheep being an example. 1975N.Z. Jrnl. Agric. Sept. 17/1 Very high zinc intakes protected against sporidesmin, the fungal toxin causing facial eczema. 1981–2Deer Farmer (N.Z.) Summer 11/1 The susceptibility of both Red and Fallow deer to sporidesmin, the facial eczema toxin. |