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، جلد ۷، شماره ۲۰، صفحات ۸۲۳-۸۳۰
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Effects of lead nitrate on histo-cytological alterations of corpuscles of Stannius of stinging catfish, Heteropneustes fossilis |
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| چکیده انگلیسی مقاله |
Background: The present study investigated the effects of lead nitrate on the histo-cytological changes in the corpuscles of Stannius (CS) of Heteropneustes fossilis. Methods: Catfish, Heteropneustes fossilis were subjected to 657.6 mg/L and 164.4 mg/L of lead nitrate for 96 h and 28 days, respectively. Blood from fish was collected on 24, 48, 72 and 96 h in short-term and after 7, 14, 21, and 28 days in long-term experiment. Blood was collected for analysis of calcium levels and CS were fixed for histological studies. Results: Plasma calcium levels of the fish remain unaffected at 24 h. The levels decrease after 48 h which persists till 96 h. Plasma calcium levels of the fish exposed to lead for 7 days exhibit a decrease which persists progressively till 28 days. After 96 h, AF-positive cells of CS exhibit increased granulation. No change in the nuclear volume of these cells has been noticed. An increased nuclear volume has been recorded in the AF-negative cells of CS of 96 h lead exposed fish. After 14 days, the nuclear volume of AF-positive cells decreases. Heavy accumulation of secretory granules and decrease in the nuclear volume of AF-positive cells have been recorded after 21 days which pronounced after 28 days. Moreover, few degenerating cells have also been encountered. AF-negative cells of CS exhibit an increase in the nuclear volume after 21 and 28 days lead treatment. Conclusion: Present findings suggest that exposure of the lead to catfish Heteropneustes fossilis caused CS inactivity . |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
| Rubi Rai
Department of Zoology, D.D.U. Gorakhpur University, Gorakhpur, India.
| Diwakar Mishra
Department of Zoology, Government Girls P.G. College, Ghazipur (U.P.), India.
| Sunil Kumar Srivastav
Department of Zoology, D.D.U. Gorakhpur University, Gorakhpur, India.
| Nobuo Suzuki
Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Ogi, Noto-cho, Ishikawa, Japan.
| Ajai Kumar Srivastav
Department of Zoology, D.D.U. Gorakhpur University, Gorakhpur, India.
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| نشانی اینترنتی |
http://ijt.arakmu.ac.ir/browse.php?a_code=A-10-2-117&slc_lang=en&sid=1 |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/2737/article-2737-2049758.pdf |
| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
تخصصی |
| نوع مقاله منتشر شده |
پژوهشی |
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