Ultrastructural effects on gill tissues induced in red tilapia Oreochromis sp. by a waterborne lead exposure
| Autor: | Mohammed A. Aldoghachi, Mohd Sofian Azirun, Ismail Yusoff, Muhammad Aqeel Ashraf |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Gill SEM-EDX gill food.ingredient Necrosis animal structures 010501 environmental sciences Biology 01 natural sciences Oreochromis sp 03 medical and health sciences food medicine lcsh:QH301-705.5 0105 earth and related environmental sciences Pavement cells Agricultural and Biological Sciences(all) Tilapia Anatomy Hyperplasia medicine.disease biology.organism_classification Molecular biology Lead histopathology Oreochromis 030104 developmental biology lcsh:Biology (General) Lead exposure Ultrastructure Original Article medicine.symptom General Agricultural and Biological Sciences |
| Zdroj: | Saudi Journal of Biological Sciences, Vol 23, Iss 5, Pp 634-641 (2016) |
| Popis: | Experiments on hybrid red tilapia Oreochromis sp. were conducted to assess histopathological effects induced in gill tissues of 96h exposure to waterborne lead (5.5mg/L). These tissues were investigated by light and scanning electron microscopy. Results showed that structural design of gill tissues was noticeably disrupted. Major symptoms were changes of epithelial cells, fusion in adjacent secondary lamellae, hypertrophy and hyperplasia of chloride cells and coagulate necrosis in pavement cells with disappearance of its microridges. Electron microscopic X-ray microanalysis of fish gills exposed to sublethal lead revealed that lead accumulated on the surface of the gill lamella. This study confirmed that lead exposure incited a difference of histological impairment in fish, supporting environmental watch over aquatic systems when polluted by lead. |
| Databáze: | OpenAIRE |
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