A COMPARISON OF HYDROLASE AND LYTIC ACTIVITIES OF THE DIGESTIVE JUICES OF THE GIANT AFRICAN SNAIL, ACHATINA FULICA, AND HELIX POMATIA

Autor: Thirlwell, M. P., Strasdine, G. A., Whitaker, D. R.
Zdroj: Canadian Journal of Physiology and Pharmacology; July 1963, Vol. 41 Issue: 7 p1603-1610, 8p
Abstrakt: Assays of hydrolase activity toward the following substrates gave specific activities for Achatina fulicadigestive juice which were within ± 50% of those for Helix pomatiadigestive juice: carboxymethyl cellulose, glycol chitin, laminarin, xylan, glycogen, a glucomannan, gentiobiose, cellobiose, maltose, p-nitrophenol-β-D-glucoside. The specific activities of Achatinadigestive juice were substantially higher than those of Helixfor hydrolase activity towards lichenin, lactose, trehalose, melibiose, and phenolphthalein-β-D-glucuronide and substantially lower for activity towards sucrose, turanose, and p-nitrophenol sulphate. At the same protein concentration, Achatinadigestive juice had greater lytic activity towards Micrococcus lysodeikticus, Bacillus subtilis, Saccharomyces cerevisiae, and Neurospora crassathan Helixdigestive juice.
Databáze: Supplemental Index