Publication: Morpho-histochemical study of the biological effects of sodium dodecyl sulphate on the digestive gland of the Portuguese oyster
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Date
2000
Authors
Rosety, M.A. ; Ribelles, A. ; Rosety-Rodriguez, M. ; Carrasco, C. ; Ordóñez Muñoz, F.J. ; Rosety, J.M.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
In the present work we have studied the
effects on survival as well as histopathological and
histochemical alterations on the digestive gland of the
Portuguese oyster (Crassostrea angulata, Lmk.) induced
by acute action of the anionic tensioactive Sodium
Dodecyl Sulphate (SDS) at different concentrations (50,
100,200 and 400 mg/L).
Firstly, the LC 50 at 96 h was found to be 136 mgL
SDS. Secondly we calculated the exposure time required
for 50% mortality of the specimens exposed to different
concentrations, and thirdly we examined histopathological
alterations (degenerative processes ranging
from inflammatory responses to extreme vacuolation)
and histochemical changes in the distribution of
carbohydrates and proteins that appeared at each
employed concentration.
The degree of these alterations and the effects on
survival were dependent upon the SDS concentration.
The above established modifications indicate that
exposure to SDS has a detrimental effect on oyster
digestive gland, perturbing metabolic and nutritional
functions, what may have some influence on oyster
survival.
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