Molluscan Research 30(1)

	Molluscan ResearchISSN 1323-5818
	An international journal of the Malacological Society of Australasia and the Society for the Study of Molluscan Diversity published by Magnolia Press

Molluscan Research 30(1): 29-36; published 31 Mar. 2010
Copyright © The Malacological Society of Australasia & the Society for the Study of Molluscan Diversity
Amylolytic and cellulolytic activities in the crystalline style and the digestive diverticulae of the freshwater bivalve Dreissena polymorpha (Pallas, 1771)

FRÉDÉRIC PALAIS, GUILLAUME JUBEAUX, ODILE DEDOURGE-GEFFARD, SYLVIE BIAGIANTI-RISBOURG & ALAIN GEFFARD*
EA 2069 URVVC-SE, Laboratoire d’Eco-Toxicologie, UFR Sciences, Moulin de la Housse, BP 1039, 51687 Reims Cedex 2, France
*Corresponding author; Email: alain.geffard@univ-reims.fr (Alain Geffard)

Abstract

Activity profiles of amylase and carboxymethylcellulase (CMCase) were investigated in the crystalline style (CS) and the digestive diverticulae (DD) of the freshwater mussel Dreissena polymorpha. In both digestive tissues, highest amylase activities were measured at pH 6.5–7.5 and 25-30°C while highest CMCase activities were measured at pH 5.0–6.0 and 50°C. Amylase and CMCase activities were greater in the CS than in the DD, whereas amylase was more active than CMCase in both tissues. Activity profiles of amylase and CMCase were similar from one tissue to the other, suggesting a probable identity between the CS and the DD carbohydrases pools.

Key words: Amylase; CMCase; Cellulase; Zebra mussel

Full article (PDF; 130 KB)

Related series by publisher
	Zootaxa: Mollusca Taxonomic papers and monographs on Mollusca from all over the world
	Zoosymposia: Collected papers on all branches of zoology; vol. 1 on Mollusca

Published : 31 Mar. 2010