| Seasonal variations in the corpuscles of stannius in Notopterus notopterus (Pallas). | |
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MedLine Citation:
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PMID: 1758678 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Seasonal changes in the corpuscles of stannius of Notopterus notopterus (Pallas) have been studied during various stages of reproductive cycle. During the pre-spawning period, corpuscles of stannius are found as enlarged, oval or elongated in shape, lobes are clear and show cellular and nuclear hypertrophy while spawning phase shows atrophy in the corpuscles of stannius, their cells and nuclei. During post-spawning period corpuscles of stannius are more active than spawning phase and showed high physiological activity. Two corpuscles of stannius are also observed during this phase. This study shows that corpuscles of stannius are more active during late prespawning phase. During such period, animals are sexually mature and an increased estrogen secretion by the ovaries is naturally expected. This study suggests a correlation with the gonadal maturation and structural changes in the corpuscles of stannius during seasonal variations. |
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Authors:
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U Narwariya; O P Gupta |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Okajimas folia anatomica Japonica Volume: 68 ISSN: 0030-154X ISO Abbreviation: Okajimas Folia Anat Jpn Publication Date: 1991 Aug |
Date Detail:
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Created Date: 1992-01-31 Completed Date: 1992-01-31 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401014 Medline TA: Okajimas Folia Anat Jpn Country: JAPAN |
Other Details:
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Languages: eng Pagination: 111-33 Citation Subset: IM |
Affiliation:
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Department of Zoology, Dr. Harisingh Gour Vishwavidyalaya, Sagar, India. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Endocrine Glands / anatomy & histology* Female Fishes / anatomy & histology* Kidney / anatomy & histology* Male Reproduction Seasons Sex Characteristics |
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