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Abstract

The arylsulphatase activity (E. C. 3. 1.6. 1.) was compared in different species ol Antarctic mammals, birds of the genus Pygoscelis, fish of the genus Notothenia and two crustaceans oi the genus Euphausia. The role of arylsulphatase in the hydrolysis of sulphate phenol esters was pointed out. Considerable differences were observed in the arylsulphatase activity both within genera and species. But no differences in the activity of the enzyme examined were observed in relation to the sex or maturity stage of gonads of chosen Antarctic animals. The activity of arylsulphatase from liver and hepato- pancreas homogenates оf Antarctic animals was lower than the activity of this enzyme in similar animals of the temperate zone.

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Authors and Affiliations

Gerard Drewa
Hanna Jackowska
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Abstract

Crude oil and light or heavy oils as well as the detergent ABS in concentrations of 5 and 50 ppm partially inactivate arylsulphatases in Euphausia superba and E. crystallorophias. After one hour exposure to detergent solutions the arylsulphatase activity in experimental animals transitorily increased. The arylsulphatase activity proved to be affected also in krill homogenates. The change of temperature, of the krill incubation in solution of crude oil or detergent, from — 1°С to + 1°C did not influence the enzyme activity. The damage of lysosomal membranes, by oils and the detergent, has been confirmed by the fact of enhanced penetration of Trypan blue into krill tissues.

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Authors and Affiliations

Gerard Drewa

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