Detalhes bibliográficos
| Ano de defesa: |
2013 |
| Autor(a) principal: |
MACIEL, Gyl Everson de Souza
 |
| Orientador(a): |
TEIXEIRA, Álvaro Aguiar Coelho |
| Banca de defesa: |
AMORIM, Marleyne José Afonso Accioly Lins |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal Rural de Pernambuco
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Ciência Animal Tropical
|
| Departamento: |
Departamento de Morfologia e Fisiologia Animal
|
| País: |
Brasil
|
| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5051
|
Resumo: |
Pomacea lineata (Spix, 1827) during the dry season buries itself in the ground and survives thanks to its ability to aestivation. Studies have shown that during aestivation levels of carbohydrates and uric acid, may provide more accurate information about the activity of the gonads in response to environmental stress. Thus, we tested the hypothesis that variations in the levels of uric acid and carbohydrate during aestivation induced, can affect gonadal histology and gametogenesis in P. lineata. The snails underwent aestivation of three, five and 10 months. Testes and ovaries were collected and processed for histological analysis. The results showed significant increase in the levels of uric acid and carbohydrates in proportion to the period of aestivation, and histological changes in the gonads. Thus, we conclude that the metabolism of proteins is proportional to the period of aestivation for carbohydrate synthesis and excretion of uric acid, thereby ensuring the integrity of the reproductive tract. |
