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| Registros recuperados : 142 | |
| Registros recuperados : 142 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
17/01/2024 |
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Data da última atualização: |
20/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
TORATI, L. S.; LOPES, J. T.; LIMA, A. F.; PUVANENDRAN, V.; BATLOUNI, S. R.; KIRSCHNIK, L. N. G. |
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Afiliação: |
LUCAS SIMON TORATI, CNPASA; JULIA T. LOPES, IFTO, Pedro Afonso-TO; ADRIANA FERREIRA LIMA, CNPASA; VELMURUGU PUVANENDRAN, CENTER FOR MARINE AQUACULTURE & PRODUCTION BIOLOGY, Norway; SERGIO R. BATLOUNI, UNESP, Jaboticabal-SP; LUCIANA NAKAGHI GANECO KIRSCHNIK, CNPASA. |
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Título: |
Feasibility of In Vivo semen collection and description of the morphology and ultrastructure of the spermatozoa of Arapaima gigas (Schinz, 1822). |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Fishes, v. 9, 24, 2024. |
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ISSN: |
2410-3888 |
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DOI: |
https://doi.org/10.3390/fishes9010024 |
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Idioma: |
Inglês |
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Conteúdo: |
The pirarucu, Arapaima gigas, is an emblematic endangered Amazon osteoglossid with high potential for aquaculture development. In this study, we report the in vivo collection of semen from pirarucu for the first-time and a complete description of the spermatozoa ultrastructure using scanning and transmission electron microscopy (SEM and TEM). The spermatozoon of pirarucu is biflagellate with no acrosomal cell, comprising a spherical head (8.26 ± 2.19 μm2), a short intermediate piece region and two long flagella (68.34 ± 5.69 μm). The nucleus is spherical and electron-dense, and at its base, there are two nuclear fossae where the centrioles are found. The anterior part of the flagellum is positioned at the lateral base of the nucleus, forming an intermediate piece. Lateral to the intermediate piece, an abundant number of mitochondria are present and occupy most of the cytoplasmic volume. The two flagella were found with a 9 + 2 axonemal structure (nine peripheral doublets and two central microtubules). The central microtubules are aligned with two side fins formed laterally by the axoneme plasma membrane. Side fins were observed from the anterior region to the posterior end. The results show that the spermatozoa of A. gigas are biflagellate, mitochondria-rich and robust, corroborating the external fertilization characteristic of the species. The novel description of sperm morphology presented herein will contribute to advancing the knowledge of and aiding future research on the reproductive biology of this species. MenosThe pirarucu, Arapaima gigas, is an emblematic endangered Amazon osteoglossid with high potential for aquaculture development. In this study, we report the in vivo collection of semen from pirarucu for the first-time and a complete description of the spermatozoa ultrastructure using scanning and transmission electron microscopy (SEM and TEM). The spermatozoon of pirarucu is biflagellate with no acrosomal cell, comprising a spherical head (8.26 ± 2.19 μm2), a short intermediate piece region and two long flagella (68.34 ± 5.69 μm). The nucleus is spherical and electron-dense, and at its base, there are two nuclear fossae where the centrioles are found. The anterior part of the flagellum is positioned at the lateral base of the nucleus, forming an intermediate piece. Lateral to the intermediate piece, an abundant number of mitochondria are present and occupy most of the cytoplasmic volume. The two flagella were found with a 9 + 2 axonemal structure (nine peripheral doublets and two central microtubules). The central microtubules are aligned with two side fins formed laterally by the axoneme plasma membrane. Side fins were observed from the anterior region to the posterior end. The results show that the spermatozoa of A. gigas are biflagellate, mitochondria-rich and robust, corroborating the external fertilization characteristic of the species. The novel description of sperm morphology presented herein will contribute to advancing the knowledge of and aiding future research on t... Mostrar Tudo |
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Thesagro: |
Espermatozóide; Morfologia Animal; Peixe; Pirarucu; Reprodução Animal. |
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Thesaurus NAL: |
Arapaima gigas; Osteoglossidae; Reproduction; Spermatozoa; Ultrastructure. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160896/1/fishes-2024.pdf
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Marc: |
LEADER 02499naa a2200325 a 4500
001 2160896
005 2024-01-20
008 2024 bl uuuu u00u1 u #d
022 $a2410-3888
024 7 $ahttps://doi.org/10.3390/fishes9010024$2DOI
100 1 $aTORATI, L. S.
245 $aFeasibility of In Vivo semen collection and description of the morphology and ultrastructure of the spermatozoa of Arapaima gigas (Schinz, 1822).$h[electronic resource]
260 $c2024
520 $aThe pirarucu, Arapaima gigas, is an emblematic endangered Amazon osteoglossid with high potential for aquaculture development. In this study, we report the in vivo collection of semen from pirarucu for the first-time and a complete description of the spermatozoa ultrastructure using scanning and transmission electron microscopy (SEM and TEM). The spermatozoon of pirarucu is biflagellate with no acrosomal cell, comprising a spherical head (8.26 ± 2.19 μm2), a short intermediate piece region and two long flagella (68.34 ± 5.69 μm). The nucleus is spherical and electron-dense, and at its base, there are two nuclear fossae where the centrioles are found. The anterior part of the flagellum is positioned at the lateral base of the nucleus, forming an intermediate piece. Lateral to the intermediate piece, an abundant number of mitochondria are present and occupy most of the cytoplasmic volume. The two flagella were found with a 9 + 2 axonemal structure (nine peripheral doublets and two central microtubules). The central microtubules are aligned with two side fins formed laterally by the axoneme plasma membrane. Side fins were observed from the anterior region to the posterior end. The results show that the spermatozoa of A. gigas are biflagellate, mitochondria-rich and robust, corroborating the external fertilization characteristic of the species. The novel description of sperm morphology presented herein will contribute to advancing the knowledge of and aiding future research on the reproductive biology of this species.
650 $aArapaima gigas
650 $aOsteoglossidae
650 $aReproduction
650 $aSpermatozoa
650 $aUltrastructure
650 $aEspermatozóide
650 $aMorfologia Animal
650 $aPeixe
650 $aPirarucu
650 $aReprodução Animal
700 1 $aLOPES, J. T.
700 1 $aLIMA, A. F.
700 1 $aPUVANENDRAN, V.
700 1 $aBATLOUNI, S. R.
700 1 $aKIRSCHNIK, L. N. G.
773 $tFishes$gv. 9, 24, 2024.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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