Algal phagostimulants for marine herbivorous gastropods |
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Authors: | K Sakata T Sakura K Ina |
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Affiliation: | (1) Research Laboratory of Marine Biological Science, Faculty of Agriculture, Shizuoka University, Mochimune, 422-01 Shizuoka, Japan;(2) Department of Agricultural Chemistry, Shizuoka University, 836 Ohya, 422 Shizuoka, Japan |
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Abstract: | Methanol extracts of the green algaUlva pertusa contain four kinds of glycerolipids that are active as feeding-stimulants for marine herbivorous gastropods. These compounds are digalactosyldiacylglycerol (DGDG), 1,2-diacylglycerly-4-O-(N,N,N-trimethyl)-homoserine (DGTH), 1-monoacylglyceryl-4'-O-(N,N,N-trimethyl)-homoserine (MGTH), and 6-sulfoquinovosyldiacylglycerol (SQDG). The various gastropods exhibit marked specificity, however, as young abaloneHaliotis discus respond to DGDG and DGTH at minute dosages of 20–30 g/sample zone, but do not respond to 300 g of SQDG, which is a phagostimulant for two other kinds of gastropods,Turbo comutus andOmphalius pfeifferi.Chemical Studies on Phagostimulants for Marine Gastropods. Part VI. For Part V, see Sakata et al. (1986b). |
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Keywords: | Phagostimulants feeding stimulants herbivorous gastropods abalone Haliotis discus Aplysia juliana Turbo cornutus digalactosyldiacylglycerol phosphatidylcholine 6-sulfoquinovosyldiacylglycerol 1 2-diacylglyceryl-4-O-(N" target="_blank">gif" alt="prime" align="BASELINE" BORDER="0">-O-(N N N-trimethyl)-homoserine 1-monoacylglyceryl-4-O-(N" target="_blank">gif" alt="prime" align="BASELINE" BORDER="0">-O-(N N N-trimethyl)-monoserine Ulva pertusa alga glycerolipids |
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