Changes in the olfactory mucosa of the black bullhead Ictalurus melas induced by exposure to sublethal concentrations of sodium dodecylbenzene sulphonate
| Autor: | Annamaria Stagni, Cristina Zeni |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Olfactory system
medicine.medical_specialty Time Factors Sodium Ictalurus melas chemistry.chemical_element Aquatic Science Black bullhead Olfactory mucosa Surface-Active Agents Olfactory Mucosa Internal medicine medicine Animals Sodium dodecylbenzene sulphonate Ecology Evolution Behavior and Systematics biology Dose-Response Relationship Drug Benzenesulfonates biology.organism_classification Epithelium Morphological changes Ictaluridae LAS medicine.anatomical_structure Endocrinology chemistry Ictalurus Anionic detergent Toxicity Microscopy Electron Scanning Scanning electron microscopy Olfactory epithelium |
| Zdroj: | Diseases of aquatic organisms. 51(1) |
| ISSN: | 0177-5103 |
| Popis: | The effects of exposure to sublethal concentrations (1.5 and 3 mg l(-1)) of sodium dodecylbenzene sulphonate on the olfactory epithelium of Ictalurus melas Rafinesque were examined by light and scanning electron microscopy. The detergent affected the superficial part of each olfactory lamella and different morphological alterations, depending on dose and duration of treatment, were observed. The histology and surface morphology of sensory and non-sensory areas of the epithelium of fish treated with 1.5 mg l(-1) for 5 and 10 d were not affected by the treatment, while only an incipient thinning-out of the long cilia of non-sensory epithelium was seen in fish treated for 15 d. Treatment with 3 mg l(-1) caused morphological alterations, related to the time of exposure, in the non-sensory and sensory epithelium, consisting of progressive thinning of cellular projections; this treatment also increased mucus production. These observed histopathological changes in the olfactory mucosa may modify the olfactory perception of the fish, and could thereby impair important physiological functions such as feeding, social interactions or migration. |
| Databáze: | OpenAIRE |
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