IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Lymosomal responses to environmental chemicals in some marine invertebrates
Moore, M.N. (1977). Lymosomal responses to environmental chemicals in some marine invertebrates, in: Giam, C.S. (Ed.) Pollutant effects on marine organisms. pp. 143-154
In: Giam, C.S. (Ed.) (1977). Pollutant effects on marine organisms. Lexington Books: Lexington. ISBN 0-669-01518-0. XI, 215 pp., more

Available in  Author 
    VLIZ: Proceedings [10070]

Keyword
    Marine

Author  Top 
  • Moore, M.N.

Abstract
    Cytoplasmic granules in Campanularia flexuosa and Mitilus edulis have been shown to accumulate various metal ions, including Cu2+, Fe3+, Zn2+, and Pb2+. Lysosomal hydrolases are associated with these granules in both organisms, indicating that they are lysosomes. Cytophotometry has been used to determine the quantitative effects of Cu2+ , Cd2+ , and Hg2+ on the cytochemical staining reaction for N-acetyl-B-D-hexosaminidase in C. flexuosa. These metal ions significantly increased the staining reaction of hexosaminidase with increasing concentrations, and the response thresholds are comparable to known environmental levels. Pretreatment of colonies with Cu2+ gave no indication of tolerance adaptation, although there is evidence of the cumulative toxicity of Cu2+. Hydrocortisone reduced the staining intensity of free hexosaminidase in Cu2+-treated animals, indicating that the toxic effect may involve decreased stability of lysosomal membranes. The role of lysosomes in the sequestration of environmental chemicals is discussed.

All data in IMIS is subject to the VLIZ privacy policy Top | Author