| Autor: |
Maria Rita Bovolenta, Cristina Zeni, Annamaria Stagni Caligiuri |
| Rok vydání: |
1995 |
| Předmět: |
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| Zdroj: |
Aquatic Toxicology. 31:113-123 |
| ISSN: |
0166-445X |
| DOI: |
10.1016/0166-445x(94)00069-3 |
| Popis: |
The present work deals with the ability of catfish barbel taste buds to recovery from exposure to sublethal doses (3 ppm) of an anionic detergent and the recovery time required. The barbels were taken at different intervals of time starting from the moment the treated specimens were transferred to LAS-free water. Starting on the 6th day there is a gradual recovery of taste bud morphology. The TB recovery process appears to be complete at around three weeks which is in agreement with the rapid cell turnover within the TBs and is compatible with the fact that LAS treatment does not appear to have altered TB nerves and basal layer. The observation that over longer periods of time (more than 42 days) the number of TBs damaged tended to increase is in agreement with the observation that living in aquaria has harmful effects on the fish chemoreceptory system. Statistical analysis of the mean percentage of damage obtained from the various experimental groups is in agreement with the morphological results. The results are discussed principally in light of the data available on the damage caused by sublethal doses of detergents in teleosts, TB regeneration in nerve resectioning experiments and cell turnover within the TB. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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