Biodeterioration Research 1 pp 347-355 | Cite as
Chitinase Induction in an Estuarine System
Abstract
Chitinase induction in marine sediments has not been previously documented. This is surprising since the ubiquitous presence of chitin ( 3-1-4-linked N-acetyl-D-gucosamine (GlcNAc)) is well recognized. Muzzarelli (1977) has review ed the general features of chitin occurrence. Chitin biodeterioration has often been associated with bacterial activities (Benecke, 1905; Reynolds, 1954; Seki and Taga, 1963; Goodrich and Morita, 1977; Bennett and Hood, 1980; Williams and Robinson, 1981; Lindsay and Gooday, 1985), but vertebrates and inverte brates also produce chitinases. Gadus morhua (cod) produces constituitive chitinase independent of bacterial populations (Lindsay and Gooday, 1985). Crassostrea virginica Gmelin (American oyster) also produces constituitive chitinases even under chloramphenicol ’therapy1, a situation in which chitinolytic bacteria are absent in the crystalline style (Mayasich and Smucker, in press). Chrysaora quinquecirrha (sea nettle ) is a prolific producer of chitinases (Smucker, 1982). By virtue of their feeding and depuration activities these higher order organisms could conceivably also contribute to extracellular chitinase pools. High molecular weight molecules such as chitin are usually digested by extracellular enzymes. Aholistic appraisal of extracellular digestion activities in the estuary, or in any environment, may be reflected in measurements of extant enzyme activities (Skujins, 1978).
Keywords
Blue Crab Chitinase Activity Crassostrea Virginica American Oyster Crystalline StylePreview
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