Uptake, depuration and subcellular distribution of cadmium in various tissues of Perna viridis.

M. S. Yang*, S. T. Chiu, Ming Hung WONG

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Green-lipped mussels (Perna viridis) were collected from a local mariculture site and placed in pre-cleaned sea water tanks containing 0, 0.2, 0.5 and 1.3 micrograms/ml CdCl2. The level of Cd in the gill, viscera and gonad was measured. The concentration of Cd in the 3 tissues increased linearly over 4 days' of exposure. The rate of uptake depends on the concentration of Cd in the water. In the 3 tissues studied, the maximum rate of uptake (Vmax) was highest in the gill (500 micrograms/g dry weight/day), followed by viscera (100 micrograms/g dry weight/day) and gonad (56.8 micrograms/g dry weight/day). The majority of the Cd taken up was bound to a fraction of the heat-stable proteins similar to metallothioneins. The rate of Cd depuration from the tissues was poor. There was no change in Cd concentration over 8 days' depuration in clean water.

Original languageEnglish
Pages (from-to)176-185
Number of pages10
JournalBiomedical and Environmental Sciences
Volume8
Issue number2
Publication statusPublished - Jun 1995

Scopus Subject Areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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