Sialic acid and mucus production in rainbow trout (Salmo gairdneri Richardson) in response to zinc and seawater.
1. Rainbow trout exposed to seawater or 20 ppm zinc showed hypersecretion of mucus whose sialic acid (N-acetylneuraminic acid) content 0.192 micro M g-1 mucus was not significantly different to that produced by trout in freshwater, 0.184 micro M g-1 mucus. 2. Measurement of sialic content in the water indicated its production (and therefore mucus production) was about 70 times higher in seawater and 20 ppm zinc compared to freshwater production.
D000818:Animals; D009093:Mucus / Q000378:metabolism*; D012487:Salmonidae / Q000378:metabolism*; D012623:Seawater; D012794:Sialic Acids / Q000096:biosynthesis*; D014337:Trout / Q000378:metabolism*; D015032:Zinc / Q000494:pharmacology*
D012794:Sialic Acids; D015032:Zinc