Department of Biology

Aarhus University Seal / Aarhus Universitets segl

Erik Baatrup

Histochemical demonstration of two mercury pools in trout tissues: mercury in kidney and liver after mercuric chloride exposure.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Department of Anatomy
  • Interdisciplinary Nanoscience Center
  • Department of Biological Sciences, Zoophysiology
Juvenile rainbow trout (Salmo gairdneri) were exposed to 100 ppb mercury (as HgCl2) in the water for 14 days. Concentrations of mercury in water and fish organs were monitored using radiolabeled mercury. Tissues from kidney and liver were fixed, and sections were developed by autometallography, a method whereby accumulations of mercury sulfides and/or mercury selenides are silver amplified. In the kidney, mercury was found within lysosomes and extracellularly in the basal lamina of proximal tubules. In the liver, mercury was found within lysosomes of the hepatocytes. Additional groups of mercury-exposed trout were subjected to selenium (as Na2SeO3), administered intraperitoneally 2 hr before fixation. Following this treatment, additional mercury could be visualized in the kidney circulatory system, including glomeruli, and in the nucleus and endoplasmic reticulum of liver cells. It is suggested that the mercury visualized prior to selenium treatment represents inorganic mercury, while additional mercury visualized after selenium administration represents an organic form.
Udgivelsesdato: 1986-Dec
Original languageEnglish
JournalEcotoxicology and Environmental Safety
Pages (from-to)267-82
Number of pages15
Publication statusPublished - 1987

    Research areas

  • Animals, Kidney, Liver, Mercuric Chloride, Mercury, Mercury Radioisotopes, Staining and Labeling, Sulfides, Trout

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