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Damage to Sorubim cuspicaudus Sperm Cryopreserved with Ethylene Glycol. Animals (Basel) 2023; 13:ani13020235. [PMID: 36670775 PMCID: PMC9854978 DOI: 10.3390/ani13020235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/29/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
The study aimed to evaluate cryo-injury during the cryopreservation in Sorubim cuspicaudus sperm with ethylene glycol (EG) at different rates (6, 8, 10%). Fresh, prefrozen, and post-thawed sperm quality as motility total, velocities, mitochondria damage (Mit-d), membrane damage (Mem-d), and DNA fragmentation (DNA-f), were examined. The Mit-d, Mem-d, and DNA-f were evaluated through flow cytometry. High motility (>95%) and a low percentage of Mem-d (1.0 ± 0.5%), Mit-d (1.4 ± 0.9%), and DNA-f (2.4 ± 0.8%) were recorded for fresh semen. Prefrozen semen increases in Mit-d and DNA-f were observed compared to fresh semen (p < 0.05). In thawed semen, increased Mit-d (2.6 to 3-fold), Mem-d (6 to 1-fold), and DNA-f (3.3 to 6.6-fold) compared to prefrozen was observed. Thawed semen showed Mit-d (34 to 37-fold), Mem-d (24.5 to 26.6-fold) and DNA-f (13 to 18.5-fold) increased high. In conclusion, the present study demonstrated that mitochondria, membrane, and DNA integrity undergo significant damage during both pre-freezing and freezing/thawing with EG inclusion percentages from 6 to 10% that affect its fertilizing capacity, which is reduced to half of that obtained with fresh semen. It is suggested that a cryoprotective solution composed of 6% EG, 6% glucose, and 5% skimmed milk powder is a useful protocol for the cryopreservation of S. cuspicaudus semen.
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Zhao X, Feng B, Wang Q, Tang L, Liu Q, Ma W, Li C, Shao C. Cloning of the Maternal Effector Gene org and Its Regulation by lncRNA ORG-AS in Chinese Tongue Sole (Cynoglossus semilaevis). Int J Mol Sci 2022; 23:ijms23158605. [PMID: 35955739 PMCID: PMC9369028 DOI: 10.3390/ijms23158605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/24/2022] [Accepted: 07/27/2022] [Indexed: 02/01/2023] Open
Abstract
Maternal effector genes (MEGs) encode maternal RNA and protein, accumulating in the cytoplasm of oocytes. During oocyte development, MEGs participate in oocyte meiosis and promote oocyte development. And MEGs can also regulate maternal transcriptome stability and promote maternal–zygotic transition (MTZ) in early embryonic development. Long noncoding RNAs (lncRNAs), as new epigenetic regulators, can regulate gene expression at both the transcriptional and post-transcriptional levels through cis- or trans-regulation. The oogenesis-related gene org is a germ-cell-specific gene in fish, but the role of org in embryonic development and oogenesis has rarely been studied, and the knowledge of the lncRNA-mediated regulation of org is limited. In this study, we cloned and identified the org gene of Chinese tongue sole (Cynoglossus semilaevis), and we identified a lncRNA named lncRNA ORG-anti-sequence (ORG-AS), located at the reverse overlapping region of org. The results of qRT-PCR and FISH demonstrated that org was highly expressed during the early stages of embryonic development and oogenesis and was located in the cytoplasm of oocytes. ORG-AS was expressed at low levels in the ovary and colocalized with org in the cytoplasm of oocytes. In vitro experiments showed that overexpression of ORG-AS inhibited org expression. These results suggest that org, as a MEG in C. semilaevis, participates in the MTZ and the oogenesis. The lncRNA ORG-AS negatively regulates the gene expression of org through trans-regulation. These new findings broaden the function of MEGs in embryonic development and the oogenesis of bony fish and prove that lncRNAs are important molecular factors regulating org.
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Affiliation(s)
- Xiaona Zhao
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; (X.Z.); (C.L.)
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Bo Feng
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Qian Wang
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
| | - Lili Tang
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Qian Liu
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Wenxiu Ma
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; (X.Z.); (C.L.)
| | - Changwei Shao
- School of Marine Sciences, Ningbo University, Ningbo 315211, China; (X.Z.); (C.L.)
- Key Lab of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; (B.F.); (Q.W.); (L.T.); (Q.L.); (W.M.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
- Correspondence: ; Tel.: +86-139-6962-5483
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Characterization of Mitochondrial Prohibitin in Opsariichthys bidens and Its Potential Functions in Spermatogenesis. Int J Mol Sci 2022; 23:ijms23137295. [PMID: 35806298 PMCID: PMC9266877 DOI: 10.3390/ijms23137295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/26/2022] [Accepted: 06/27/2022] [Indexed: 02/04/2023] Open
Abstract
Spermatogenesis is the intricate and coordinated process by which spermatogonia develop into haploid differentiated spermatozoa. Mitochondria are essential for spermatogenesis, and prohibitin (PHB) is closely associated with mitochondrial structure and function during spermatogenesis. Although PHB has been implicated in spermatogenesis in some taxa, its roles in Opsariichthys bidens have not been determined. In this study, the expression patterns and potential functions of PHB in spermatogenesis in O. bidens were characterized using histological microscopic observations, PCR cloning, real-time quantitative PCR (qPCR), Western blotting (WB) and immunofluorescence (IF). The full-length cDNA of Ob-phb was 1500 bp encoding 271 amino acids. A sequence alignment demonstrated that the PHB protein is conserved among different animals. qPCR revealed that phb mRNA is widely distributed in O. bidens and highly expressed in the testes at stages IV and V. WB revealed that Ob-PHB is located in the mitochondria of testes. IF revealed the colocalization of PHB signals and mitochondria. Signals were detected around nuclei in spermatogonia and spermatocytes, gradually moving to the tail region during spermiogenesis, and finally aggregating in the midpiece. These results indicate that Ob-PHB was expressed in the mitochondria during spermatogenesis. In addition, this study proposed Ob-PHB may participate in the degradation of mitochondria and cell differentiation during spermatogenesis.
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Cordeiro JG, Rodrigues J, dos Santos R, da Silva Rodrigues M, Nóbrega RH, da Silva Siqueira FF, Maximino C, de Siqueira‐Silva DH. Reproductive biology of the Amazonian amphibian fish the splash tetra
Copella arnoldi
with emphasis to histological characterization. ACTA ZOOL-STOCKHOLM 2022. [DOI: 10.1111/azo.12430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jhennifer Gomes Cordeiro
- Research Group on the Reproduction of Amazon fish (GERPA/LANEC), Biology Faculty (FACBIO) University of South and Southern of Pará (Unifesspa) Marabá Brazil
| | - Jeane Rodrigues
- Research Group on the Reproduction of Amazon fish (GERPA/LANEC), Biology Faculty (FACBIO) University of South and Southern of Pará (Unifesspa) Marabá Brazil
| | - Raquel dos Santos
- Research Group on the Reproduction of Amazon fish (GERPA/LANEC), Biology Faculty (FACBIO) University of South and Southern of Pará (Unifesspa) Marabá Brazil
| | - Maira da Silva Rodrigues
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Biosciences São Paulo State University (UNESP) – Botucatu Botucatu Brazil
| | - Rafael Henrique Nóbrega
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Biosciences São Paulo State University (UNESP) – Botucatu Botucatu Brazil
| | | | - Caio Maximino
- Laboratório de Neurociências e Comportamento “Frederico Guilherme Graeff” Universidade Federal do Sul e Sudeste do Pará Marabá Brazil
| | - Diógenes Henrique de Siqueira‐Silva
- Research Group on the Reproduction of Amazon fish (GERPA/LANEC), Biology Faculty (FACBIO) University of South and Southern of Pará (Unifesspa) Marabá Brazil
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García VA, Cabrales-Hessen SS, Espinosa-Araujo JA. Efecto de etilenglicol y leche en polvo en la criopreservación de semen de bocachico Prochilodus magdalenae. REVISTA COLOMBIANA DE BIOTECNOLOGÍA 2021. [DOI: 10.15446/rev.colomb.biote.v23n2.91188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Bocachico Prochilodus magdalenae es una especie endémica y la más importante de la pesquería continental colombiana. No obstante, sus capturas han disminuido aproximadamente el 67% en los últimos cuarenta años, por tanto ha sido categorizada como vulnerable a la extinción. La criopreservación de semen, es una herramienta biotecnológica de conservación por tanto el objetivo del presente estudio fue evaluar la criopreservación de semen de bocachico con etilenglicol (EG) y leche en polvo descremada (LP). La solución crioprotectora estuvo compuesta por EG (6, 8 o 10%), LP (3, 5 o 7%) y glucosa 6%. La calidad del semen descongelado se evaluó con un software tipo CASA (computer assisted semen analysis). El porcentaje de inclusión de EG, no afectó significativamente ninguno de los parámetros de calidad seminal evaluados (p>0,05), a excepción de la tasa de eclosión (p<0,05); mientras que, la LP afectó significativamente el porcentaje de espermatozoides estáticos (p<0,05) y las tasas de fertilización y eclosión (p<0,01). La mayor movilidad total se obtuvo cuando EG se incluyó a 10% y la LP a 7% (38,4±18,4%) (p<0,05); pero las mayores tasas de fertilización (54,3-64,2%) y eclosión (47,7-57,5%) se obtuvieron cuando EG se incluyó a 6 u 8% y la LP se incluyó a la menor concentración evaluada (3%), sin observarse diferencia significativa entre estos tratamientos (p>0,05). Los resultados permiten concluir que la combinación EG 6% con LP 3% permiten la criopreservación de semen de Prochilodus magdalenae de buena calidad y capacidad fecundante.
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Tang D, Gao X, Lin C, Feng B, Hou C, Zhu J, Wang J. Cytological features of spermatogenesis in Opsariichthys bidens (Teleostei, Cyprinidae). Anim Reprod Sci 2020; 222:106608. [PMID: 33039822 DOI: 10.1016/j.anireprosci.2020.106608] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 12/23/2022]
Abstract
Spermatogenesis is important for male fertility, but has not been well-studied in Opsariichthys bidens, an economically important freshwater fish in China. In this study, there was investigation of the cytological features of spermatogenesis in O. bidens using light microscopy, transmission electron microscopy, and immunofluorescence detection of microtubules. O. bidens has tubular testis. Spermatogenesis in O. bidens is of the cystic type, in which the spermatogenic cells develop into spermatozoa in cysts. There was asynchronous development of primary spermatocytes within a single cyst. Spermiogenesis was classified as Type I, which develops into a Type I aquasperm with an oval nucleus, a small and simple midpiece, a flagellum and no acrosome. There was a nuage in spermatogonia, spermatocytes, and spermatids in different developmental stages of spermatids which may have important functions in fish spermatogenesis. Furthermore, microtubule dynamics may be involved in spermatid reshaping, material transport, and polar distribution of organelles during spermiogenesis.
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Affiliation(s)
- Daojun Tang
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Xinming Gao
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Chenwen Lin
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Binbin Feng
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Congcong Hou
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
| | - Junquan Zhu
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China.
| | - Jianping Wang
- Ningbo Academy of Oceanology and Fisheries, Ningbo, Zhejiang, 315012, People's Republic of China.
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Dadras H, Golpour A, Dzyuba B, Kristan J, Policar T. Ultrastructural feature of spermatogenic cells and spermatozoon in cultured burbot Lota lota. Tissue Cell 2019; 61:1-7. [PMID: 31759401 DOI: 10.1016/j.tice.2019.08.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 11/24/2022]
Abstract
Testis development and ultrastructure of spermatogenic cells and spermatozoa of burbot Lota lota, a commercially important cold freshwater fish, were studied by light and transmission electron microscopy. Spermatogonia, spermatocytes, spermatids, and spermatozoa are distributed along the seminiferous tubules. Electron-dense bodies appear in germ cells from primary spermatogonia to secondary spermatocytes. We identified three distinct stages of spermatid cell differentiation based on chromatin condensation, development of the flagellum, formation of a nuclear fossa, and elimination of excess cytoplasm. Spermatozoa were anacrosomal and characterized by location of the centrioles outside the nuclear fossa and incomplete perpendicular arrangement of the centrioles. The sperm flagellum displayed an axoneme with nine doublets of peripheral microtubules and two central microtubules. These results provide valuable information for burbot taxonomy and may clarify the process of spermatogenesis for this species.
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Affiliation(s)
- Hadiseh Dadras
- Faculty of Fisheries and Protection of Waters, University of South Bohemia, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Vodnany, Zatisi 728, 389 25 Vodnany, Czech Republic.
| | - Amin Golpour
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Innovation Academy for Seed Design, Wuhan 430072, China
| | - Borys Dzyuba
- Faculty of Fisheries and Protection of Waters, University of South Bohemia, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Vodnany, Zatisi 728, 389 25 Vodnany, Czech Republic
| | - Jiri Kristan
- Faculty of Fisheries and Protection of Waters, University of South Bohemia, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Vodnany, Zatisi 728, 389 25 Vodnany, Czech Republic
| | - Tomas Policar
- Faculty of Fisheries and Protection of Waters, University of South Bohemia, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, Vodnany, Zatisi 728, 389 25 Vodnany, Czech Republic
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8
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de Siqueira-Silva DH, da Silva Rodrigues M, Nóbrega RH. Testis structure, spermatogonial niche and Sertoli cell efficiency in Neotropical fish. Gen Comp Endocrinol 2019; 273:218-226. [PMID: 30195025 DOI: 10.1016/j.ygcen.2018.09.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 07/23/2018] [Accepted: 09/04/2018] [Indexed: 11/23/2022]
Abstract
Neotropical icthyofauna represents one of the most diverse and extreme ecosystems in the world. Likewise, reproduction showed enormous diversity with different reproductive systems, modes and behavior. On the other hand, information on Neotropical fish species, in particular on male reproductive physiology is restricted to few species. This mini-review aimed to compile the existing information on spermatogenesis of Neotropical teleosts focusing on testis structure, spermatogonial niche and Sertoli cell efficiency. The first topic covers the histological analysis of the testicular structure, showing a conserved testicular pattern in relation to the phylogenetic position: basal species present anastomosing tubular testis (e.g. Astyanax altiparanae, Conorhynchos conirostris, Pimelodus maculatus, Lophiosilurus alexandri, Rhinelepis aspera, among others), while derived teleosts showed lobular testis (e.g. Cichlasoma dimerus, Cichla kelberi, Odontesthes bonariensis, Synbranchus marmoratus and others). Next to testicular structure, existing data showed that type A undifferentiated spermatogonia (Aund) is differentially distributed among the Neotropical species. Aund can be restricted at the blind-end of the germinal compartment (O. bonariensis), or spread along the germinal epithelium (A. altiparanae), or even distributed along the germinal epithelium but concentrated at the blind-end (C. kelberi and C. intermedia). Moreover, recent studies in A. altiparanae have demonstrated that within the germinal compartment, Aund have a preferential distribution in areas neighboring the interstitial compartment - the spermatogonial niche. The proximity with the interstitium suggests that interstitial cells, such as Leydig cells, are important for Aund maintenance in the testis. Finally, this mini-review highlighted Sertoli cell efficiency, showing that a single Sertoli cell can support a higher number of germ cells (80-140 spermatids) in Neotropical species evaluated at the moment (e.g. A. altiparanae, Hoplias malabaricus, Poecilia reticulata, Serrasalmus spilopleura, C. intermedia). Overall, this review provided basic and functional information on spermatogenesis of Neotropical species. More studies in this field are necessary since Neotropical region is considered one of the hotspot regions to discovery new species providing, therefore, new opportunities to investigate spermatogenesis in fish.
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Affiliation(s)
- Diógenes Henrique de Siqueira-Silva
- Group of Studies on the Reproduction of Amazon fish (GERPA/LANEC), PPG in Biodiversity and Biotechnology (BIONORTE), University of South and Southern of Pará (Unifesspa), Marabá, Pará, Brazil.
| | - Maira da Silva Rodrigues
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP) - Botucatu Campus, Botucatu, Brazil; Aquaculture Center of São Paulo State University (CAUNESP), São Paulo State University (UNESP) - Jaboticabal Campus, Jaboticabal, Brazil
| | - Rafael Henrique Nóbrega
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP) - Botucatu Campus, Botucatu, Brazil.
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Abstract
SummaryThis study aimed to understand how germ cell development occurs in females of Devario aequipinnatus, by morphologically describing oogenesis and the reproductive phases. Sexually mature females of D. aequipinnatus (n = 70) were obtained from commercial fisheries and delivered to the Laboratório de Ictiologia Neotropical, UNESP, Ilha Solteira, SP, Brazil. The ovaries were removed, fragmented and fixed following the usual techniques for light microscopy. The stages of ovarian development in D. aequipinnatus begin with the oogonia, which proliferate into new cells or differentiate into prophasic oocytes that, at the end of this process, form the ovarian follicle and end folliculogenesis. In the previtellogenic stage, the oocytes were characterized mainly by the gradual loss of basophilia and an increase in oocyte diameter. Vitellogenesis was marked mainly by the incorporation of yolk granules. Mature oocytes were defined by their migration from the nucleus to the micropyle. Postovulatory follicles and atresic oocytes were also observed. The reproductive phases were classified as: immature, early and final developing, spawning capable, regressing and regenerating. Therefore, the development of an understanding of cell modifications that occurs up to oogenesis is a basic step that is essential for the description of the reproductive biology of D. aequipinnatus, given the lack of information about the reproductive aspects of this species.
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Cassel M, Chehade C, Souza Branco G, Caneppele D, Romagosa E, Borella MI. Ovarian development and the reproductive profile of Astyanax altiparanae (Teleostei, Characidae) over one year: Applications in fish farming. Theriogenology 2017; 98:1-15. [DOI: 10.1016/j.theriogenology.2017.04.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 04/04/2017] [Accepted: 04/27/2017] [Indexed: 10/19/2022]
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Domínguez-Castanedo O, Uribe MC, Rosales-Torres AM. Morphological development of the structures related to annualism in the ovarian follicle of the killifishMillerichthys robustus(Costa,1995) (Teleostei: Cyprinodontiformes). J Morphol 2016; 277:1219-30. [DOI: 10.1002/jmor.20570] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 05/16/2016] [Accepted: 05/26/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Omar Domínguez-Castanedo
- Programa de Doctorado en Ciencias Biológicas y de la Salud; Universidad Autónoma Metropolitana; Unidad Xochimilco México
| | - Mari Carmen Uribe
- Laboratorio de Biología de la Reproducción, Depto de Biología Comparada, Facultad de Ciencias; Universidad Nacional Autónoma de México; Coyoacán México
| | - Ana María Rosales-Torres
- Laboratorio Bioquímica de la Reproducción, Depto. de Producción Agrícola y Animal; Universidad Autónoma Metropolitana-Xochimilco; Coyoacán México
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12
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A histological study of testis development and ultrastructural features of spermatogenesis in cultured Acrossocheilus fasciatus. Tissue Cell 2016; 48:49-62. [DOI: 10.1016/j.tice.2015.10.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 10/15/2015] [Accepted: 10/15/2015] [Indexed: 11/20/2022]
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13
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Golpour A, Pšenička M, Niksirat H. Subcellular localization of calcium deposits during zebrafish (Danio rerio) oogenesis. Micron 2016; 80:6-13. [DOI: 10.1016/j.micron.2015.09.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/04/2015] [Indexed: 10/23/2022]
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14
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Meneguelli De Souza LC, Retamal CA, Rocha GM, Lopez ML. Morphological evidence for a permeability barrier in the testis and spermatic duct of Gymnotus carapo (Teleostei: Gymnotidae). Mol Reprod Dev 2015; 82:663-78. [PMID: 26073744 DOI: 10.1002/mrd.22503] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 05/07/2015] [Indexed: 11/10/2022]
Abstract
Cell-cell interactions play essential roles in the regulation of gametogenesis. The involvement of junctional complexes in permeability barriers, for example, provides structural and physiological support for male germ-cell development. This study describes morphological characteristics of the reproductive system of Gymnotus carapo, a neo-tropical freshwater fish widely distributed in South and Central America, focusing on the detection of permeability barriers using morphological and biochemical approaches. Ultrastructural analysis of testes treated with the lanthanum nitrate exclusion technique showed that the tracer penetrated the interstitial compartment of the testis, surrounding and appearing within cysts containing spermatogonia and spermatocytes in early stages of meiosis, but was not detected in the spermatid cysts or inside the lumen of spermatogenic tubules. These results suggest the presence of a permeability barrier that is stabilized after meiosis is completed and serves to protect the haploid cells from the vascular system. In the spermatic-duct region, the tracer was obstructed near the lumen of the duct. Junctional complexes and focal tight junctions between adjacent cells were observed in the testis and spermatic duct. Freeze-fracture methods indeed confirmed the presence of tight junctions, which were visualized as parallel rows of individual particles between adjacent cells. More evidence supporting the existence of a permeability barrier was gathered from differences observed in the electrophoretic protein profiles of testis and spermatic-duct fluids compared to blood plasma. Together, these observations demonstrate the existence of a permeability barrier formed by tight junctions in the testis and spermatic duct of G. carapo.
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Affiliation(s)
- Lara C Meneguelli De Souza
- Setor Biologia da Reprodução, Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | | | - Gustavo M Rocha
- Instituto Nacional de Metrologia, Padronização e Qualidade Industrial, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria Luisa Lopez
- Setor Biologia da Reprodução, Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
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15
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Piras F, Biagi F, Taddei AR, Fausto AM, Farina V, Zedda M, Floris A, Franzoi P, Carcupino M. Male gonads morphology, spermatogenesis and sperm ultrastructure of the seahorseHippocampus guttulatus(Syngnathidae). ACTA ZOOL-STOCKHOLM 2015. [DOI: 10.1111/azo.12126] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francesca Piras
- Dipartimento di Scienze dalla Natura e del Territorio; Università di Sassari; Sassari Italy
| | - Francesca Biagi
- Dipartimento di Scienze dalla Natura e del Territorio; Università di Sassari; Sassari Italy
| | - Anna Rita Taddei
- Centro Grandi Attrezzature, sez. di Microscopia Elettronica (CIME); Università della Tuscia; Viterbo Italy
| | - Anna Maria Fausto
- Dipartimento per l'Innovazione nei Sistemi Biologici; Agro-alimentari e Forestali; Università della Tuscia; Viterbo Italy
| | - Vittorio Farina
- Dipartimento di Medicina Veterinaria; Università di Sassari; Sassari Italy
| | - Marco Zedda
- Dipartimento di Medicina Veterinaria; Università di Sassari; Sassari Italy
| | - Antonello Floris
- Dipartimento di Medicina Veterinaria; Università di Sassari; Sassari Italy
| | - Piero Franzoi
- Dipartimento di Scienze Ambientali; Informatica e Statistica; Università Ca’ Foscari di Venezia; Venezia Italy
| | - Marcella Carcupino
- Dipartimento di Scienze dalla Natura e del Territorio; Università di Sassari; Sassari Italy
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Biagi F, Piras F, Farina V, Zedda M, Mura E, Floris A, Franzoi P, Fausto AM, Taddei AR, Carcupino M. Testis structure, spermatogenesis and sperm morphology in pipefishes of the genusSyngnathus. ACTA ZOOL-STOCKHOLM 2014. [DOI: 10.1111/azo.12108] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Francesca Biagi
- Dipartimento di Medicina Veterinaria; Università di Sassari; via Vienna 2 07100 Sassari Italy
| | - Francesca Piras
- Dipartimento di Scienze dalla Natura e del Territorio; Università di Sassari; Via Muroni 25 07100 Sassari Italy
| | - Vittorio Farina
- Dipartimento di Medicina Veterinaria; Università di Sassari; via Vienna 2 07100 Sassari Italy
| | - Marco Zedda
- Dipartimento di Medicina Veterinaria; Università di Sassari; via Vienna 2 07100 Sassari Italy
| | - Emilio Mura
- Dipartimento di Medicina Veterinaria; Università di Sassari; via Vienna 2 07100 Sassari Italy
| | - Antonello Floris
- Dipartimento di Medicina Veterinaria; Università di Sassari; via Vienna 2 07100 Sassari Italy
| | - Piero Franzoi
- Dipartimento di Scienze Ambientali Informatica e Statistica; Università Ca' Foscari di Venezia; Dorsoduro 2137 30123 Venezia Italy
| | - Anna Maria Fausto
- Dipartimento per l'Innovazione nei sistemi Biologici; Agro-alimentari e Forestali; Università della Tuscia; Via San Camillo De Lellis 01100 Viterbo Italy
| | - Anna Rita Taddei
- Centro Interdipartimentale di Microscopia Elettronica (CIME); Università della Tuscia; Largo dell'Università snc O1100 Viterbo Italy
| | - Marcella Carcupino
- Dipartimento di Scienze dalla Natura e del Territorio; Università di Sassari; Via Muroni 25 07100 Sassari Italy
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17
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Freitas LJ, Prado PS, Arantes FP, Santiago KB, Sato Y, Bazzoli N, Rizzo E. Reproductive biology of the characid dourado Salminus franciscanus from the São Francisco River, Brasil. Anim Reprod Sci 2013; 139:145-54. [DOI: 10.1016/j.anireprosci.2013.03.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 03/22/2013] [Accepted: 03/27/2013] [Indexed: 12/29/2022]
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18
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Kaviani EF, Shabanipour N, Mirnategh SB. Light and electron microscope structural study of the zona radiata in the oocyte of zebrafish (Danio rerio). Microscopy (Oxf) 2013; 62:377-82. [DOI: 10.1093/jmicro/dfs086] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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19
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Quagio-Grassiotto I, Malabarba LR, Azevedo MA, Burns JR, Baicere-Silva CM, Quevedo R. Unique Derived Features in Spermiogenesis and Sperm Morphology Supporting a Close Relationship between the Species of Hollandichthys and Rachoviscus (Characiformes: Characidae). COPEIA 2012. [DOI: 10.1643/cg-11-171] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Abdel-Aziz SH, Al-Otaibi M, Osman AM, Ali TES, Bawazeer F. Ultrastructural Evidence of Oogenesis of the Rusty Parrotfish, Scarus ferrugineus (Teleostei: Scaridae). COPEIA 2012. [DOI: 10.1643/cg-11-063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Oocyte adhesiveness and embryonic development of Astyanax bimaculatus (Linnaeus, 1758) (Pisces: Characidae). ZYGOTE 2012; 21:198-202. [DOI: 10.1017/s096719941200007x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryThis study shows for the first time the presence of a jelly coat on oocytes of neotropical Characiformes fish. This structure could be responsible for the adhesiveness of Astyanax bimaculatus oocytes, a species widely distributed in South America including in the São Francisco River basin in Brazil. Adult specimens of A. bimaculatus were submitted to artificial reproduction in order to analyse the egg morphology and embryonic development. The eggs were fertilised and kept in incubators with a water temperature of 24°C so that embryogenesis could be monitored. Ovulated and unfertilised oocytes were also collected and submitted to routine histological techniques. Astyanax bimaculatus oocytes were found to be spherical, yellowish, and covered by a thin jelly coat with a slightly adhesive surface. The mean oocyte diameter was 1.03 ± 0.03 mm, the perivitelline space was 0.21 ± 0.02 mm and the jelly coat's thickness was 0.04 ± 0.01 mm. Positive periodic acid–Schiff (PAS) stain and Alcian blue stain pH 2.5 indicated the presence of neutral glycoproteins, and carboxylated acid glycoconjugates on the jelly coat that formed mucosubstances that may be associated with egg adhesiveness. At a water temperature of 24°C, blastopore closure and hatching occurred at 5 h and 17 h after fertilisation, respectively. The results of this study provide essential information for phylogenetic studies and for a better understanding of the reproductive strategy of A. bimaculatus, currently included in the incertae sedis group of the Characidae family due to the lack of monophyly among the families of the group.
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22
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Rupik W, Huszno J, Klag J. Cellular organisation of the mature testes and stages of spermiogenesis in Danio rerio (Cyprinidae; Teleostei)—Structural and ultrastructural studies. Micron 2011; 42:833-9. [DOI: 10.1016/j.micron.2011.05.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2010] [Revised: 05/24/2011] [Accepted: 05/25/2011] [Indexed: 10/18/2022]
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23
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Martins YS, Arantes FP, Sato Y, dos Santos JE, Rizzo E, Bazzoli N. Comparative analysis of gonadal morphology in six fish species of the Incertae Sedis genera in Characidae of occurrence in the São Francisco River Basin, Brazil. ACTA ZOOL-STOCKHOLM 2010. [DOI: 10.1111/j.1463-6395.2010.00478.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Histological and ultrastructural study of Zona Radiata in oocyte of common carp Cyprinus carpio (Linnaeus 1758). Micron 2010; 41:877-81. [DOI: 10.1016/j.micron.2010.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Revised: 04/07/2010] [Accepted: 04/08/2010] [Indexed: 11/19/2022]
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25
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Martins YS, De Moura DF, Santos GB, Rizzo E, Bazzoli N. Comparative folliculogenesis and spermatogenesis of four teleost fish from a Reservoir in south-eastern Brazil. ACTA ZOOL-STOCKHOLM 2010. [DOI: 10.1111/j.1463-6395.2009.00437.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Honorato-Sampaio K, Santos GB, Bazzoli N, Rizzo E. Observations on the seasonal breeding biology and fine structure of the egg surface in the white piranha Serrasalmus brandtii from the São Francisco River basin, Brazil. JOURNAL OF FISH BIOLOGY 2009; 75:1874-1882. [PMID: 20738655 DOI: 10.1111/j.1095-8649.2009.02422.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In the Juramento Reservoir, south-eastern Brazil, the white piranha Serrasalmus brandtii showed a prolonged reproductive season, with evidence for multiple spawning and a reproductive peak associated with seasonal rains. The egg surface exhibited a honeycomb-like pore canal arrangement and an adhesive apparatus surrounding the micropyle. Electron microscopic analysis suggests a role for the micropylar cell and neighbouring follicular cells in secretion of substances for egg attachment.
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Affiliation(s)
- K Honorato-Sampaio
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, C P 486, 30161-970 Belo Horizonte, Minas Gerais, Brazil
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27
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Biology of eggs, embryos and larvae of Rhinelepis aspera (Spix & Agassiz, 1829) (Pisces: Siluriformes). ZYGOTE 2009; 18:159-71. [DOI: 10.1017/s0967199409990165] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryThe black armoured catfish Rhinelepis aspera is an important commercial species found in the São Francisco River (Brazil) that has great potential for pisciculture. This paper presents, for the first time, information on the embryogenesis and larval development of this species. The breeder fish were subjected to spawning induction with crude carp pituitary extract. Eggs were kept in incubators at 24°C and embryogenesis was observed with a stereomicroscope until hatching. Ovary fragments, samples of recently extruded oocytes and larvae were fixed in Bouin's solution and subjected to routine histology techniques. Recently extruded oocytes were also analyzed with a scanning electron microscope (SEM). Females (80%) had a positive response to hypophysation. Oocyte extrusion was performed at 8 h and 30 min after the second hormone injection and the fertilization rate achieved 72.4 ± 8.8%. Recently extruded oocytes had a mean diameter of 1360.80 ± 40.87 μm and presented a conspicuous jelly coat covering the zona pellucida. Histochemical reactions indicated the presence of neutral glycoproteins in the yolk globules and in the zona pellucida. These reactions also indicated the presence of neutral glycoproteins and carboxylated acid glycoconjugates in the follicular cells and the jelly coat. These compounds form mucosubstances that can be related to the adhesiveness of the eggs. Under the SEM the oocytes presented a micropyle disc and a thick jelly coat over their surface. The closure of the blastopore occurred 9 h and 40 min after fertilization and embryogenesis was completed at 45 h and 50 min after fertilization, when the embryos were incubated at 24°C. The total absorption of the yolk sac occurred during the fifth day indicating the need for an exogenous food supply. These results provide essential information for the successful breeding and management of the promising R. aspera.
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Gusmão-Pompiani P, Malabarba LR, Oliveira C, Quagio-Grassiotto I. Spermiogenesis and spermatozoa ultrastructure in the Serrasalminae (Ostariophysi: Characiformes) with further evidence on the relationships of the piranhas and pacus. NEOTROPICAL ICHTHYOLOGY 2009. [DOI: 10.1590/s1679-62252009000300005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Spermatozoa and spermiogenesis ultrastructure were studied in the serrasalmine species Piaractus mesopotamicus, Mylossoma duriventre, Serrasalmus maculatus, and Metynnis mola and two distinct patterns may be recognized: the first common to Mylossoma, Serrasalmus and Metynnis, and the other, characteristic of Piaractus. The latter pattern is more similar to the conditions found in Salminus and Brycon. On the other hand, serrasalmine spermatozoa also share characteristics with the spermatozoa of species of the superfamily Anostomoidea. The phylogenetic significance of these characters is discussed.
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29
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Thongkukiatkul A, Jungudomjaroen S, Ratanapahira C. Spermatogenesis and chromatin condensation in male germ cells of sea cucumber Holothuria leucospilota (Clark, 1920). Tissue Cell 2008; 40:167-75. [DOI: 10.1016/j.tice.2007.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Revised: 10/05/2007] [Accepted: 10/08/2007] [Indexed: 10/22/2022]
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30
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Pecio A, Burns JR, Weitzman SH. Comparison of spermiogenesis in the externally fertilizing Hemigrammus erythrozonus and the inseminating Corynopoma riisei (Teleostei: Characiformes: Characidae). NEOTROPICAL ICHTHYOLOGY 2007. [DOI: 10.1590/s1679-62252007000400005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Spermiogenesis and sperm ultrastructure were analyzed in two species of characids with different modes of fertilization: externally fertilizing Hemigrammus erythrozonus and inseminating Corynopoma riisei. Spermiogenesis in H. erythrozonus is characterized by lateral development of the flagellum, nuclear rotation, formation of a shallow nuclear fossa, condensation of the chromatin by elimination of the electron-lucent area from the peripheral region of the nucleus, and renewal of the nuclear membrane. Multilammelated membrane and multivesicular bodies were also observed during elimination of the excess cytoplasm. The spermatozoon exhibits characters typical of "aquasperm," i.e. a spherical head containing a spherical nucleus with highly condensed chromatin, several small mitochondria located at the base of the nucleus within a cytoplasmic collar that extends into a long cytoplasmic sleeve surrounding the anterior part of the single flagellum, which is contained within a cytoplasmic canal. The flagellum lacks fins. The proximal and distal centrioles are nearly parallel to one another, with the anterior tips of both located within shallow nuclear fossae. Spermiogenesis in C. riisei is characterized by nuclear elongation alongside the forming flagellum, formation of an elongate cytoplasmic canal, displacement and elongation of the mitochondria, and uniform condensation of chromatin throughout the nucleus through enlargement of the diameter of the chromatin granules. The spermatozoon has an elongate nucleus with two elongate mitochondria localized to one side. Mitochondria are also located posterior to the nucleus forming a mitochondrial region. The single flagellum, which lacks fins, is lateral to the nucleus and initially contained within the greatly elongate cytoplasmic canal before exiting the canal at its posterior terminus. The spermatozoon of C. riisei exhibits several characters typical of "introsperm," such as an elongate nucleus and midpiece (mitochondrial region). The nuclear chromatin in the spermatozoon remains "flocculent" and is never as condensed as that seen in many characid sperm. Differences in spermiogenesis between externally fertilizing and inseminating characids are discussed.
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31
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Veríssimo-Silveira R, Gusmão-Pompiani P, Vicentini CA, Quagio-Grassiotto I. Spermiogenesis and spermatozoa ultrastructure in Salminus and Brycon, two primitive genera in Characidae (Teleostei: Ostariophysi: Characiformes). ACTA ZOOL-STOCKHOLM 2006. [DOI: 10.1111/j.1463-6395.2006.00243.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Shahin AAB. Semicystic spermatogenesis and biflagellate spermatozoon ultrastructure in the Nile electric catfish Malapterurus electricus (Teleostei: Siluriformes: Malapteruridae). ACTA ZOOL-STOCKHOLM 2006. [DOI: 10.1111/j.1463-6395.2006.00235.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Gonçalves TL, Bazzoli N, Brito MFG. Gametogenesis and reproduction of the matrinxã Brycon orthotaenia (Günther, 1864) (Pisces: Characidae) in the São Francisco river, Minas Gerais, Brazil. BRAZ J BIOL 2006; 66:513-22. [PMID: 16862307 DOI: 10.1590/s1519-69842006000300018] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2004] [Accepted: 08/11/2004] [Indexed: 11/21/2022] Open
Abstract
The gametogenesis and reproduction of the matrinxã, Brycon orthotaenia in the São Francisco river, Pirapora Region, Minas Gerais, were studied from December, 1998 to November, 1999. The matrinxã B. orthotaenia is an endemic species in the São Francisco river basin in Brazil and important for commercial fishing. The size of the 1st gonadal maturation, indicated by the total length of the smallest spent males and spawned female, was 32.0 and 40.5 cm respectively. Reproduction occurred from October to January, when high frequencies of females and males at an advanced ripening/mature stage and spawned females were found. The short spawning period and histological characteristics of spawned ovaries containing only oocytes in stages of initial development, along with post-ovulatory and atresic follicles, indicated that Brycon orthotaenia presents total spawning.
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Affiliation(s)
- T L Gonçalves
- Programa de Pós-Graduação em Zoologia de Verterbrados, Pontíficia Universidade Católica de Minas Gerais - PUC Minas, Av. Dom José Gaspar, 500, Coração Eucarístico, Prédio 41, CEP 30535-610, Belo Horizonte, Minas Gerais, Brazil
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34
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Santos RN, Andrade CC, Santos LN, Santos AFGN, Araújo FG. Testicular maturation of Oligosarcus hepsetus (Cuvier) (Actinopterygii, Characidae) in a brazilian tropical reservoir. BRAZ J BIOL 2006; 66:143-50. [PMID: 16680317 DOI: 10.1590/s1519-69842006000100018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Six reproductive classes of male Oligosarcus hepsetus (Cuvier, 1829), a medium-sized carnivorous Characiform species, are described based on macroscopic and histological techniques. A total of 175 individuals were caught monthly between April 2001 and June 2002 in the Lajes Reservoir, Brazil, one of the largest impoundment areas in the state of Rio de Janeiro. The reproductive classes were based upon changes in the testicular morphology and stages of germinative cells, i.e., resting, early maturing, late maturing, mature, partially spent and totally spent. Fish in the resting class showed testes with spermatogonia and spermatocytes along the wall of seminal lobules, while spermatids were present in the lumina of the lobules. During early maturing, active spermatogenesis occurs throughout the testis; in the late maturing and mature classes, the lobules are swollen with sperm that are typical of fish in breeding condition. Spent testes presented seminal lobules with residual spermatozoa, coinciding with decreasing GSI and greatly reduced sperm production. Overall, the testicular morphology and class of maturity development of O. hepsetus in the Lajes reservoir did not differ significantly from those of closely related species in other lentic environments. Lower GSI values in the oligotrophic Lajes reservoir than in other eutrophic natural lakes suggest that this species may be modifying this aspect of its reproductive strategy in response to the artificial environment.
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Affiliation(s)
- R N Santos
- Laboratorio de Ecologia de Peixes, Universidade Federal Rural do Rio de Janeiro, CEP 23851-970, Seropédica, RJ, Brazil
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35
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Guimarães-Cruz RJ, Santos JED, Santos GB. Gonadal structure and gametogenesis of Loricaria lentiginosa Isbrücker (Pisces, Teleostei, Siluriformes). ACTA ACUST UNITED AC 2005. [DOI: 10.1590/s0101-81752005000300005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The gonadal structure and gametogenesis of Loricaria lentiginosa Isbrücker, 1979 were studied through anatomical and histological techniques. Forty two males and ten females in maturation/mature stage were captured in the reservoir of Porto Colombia, Paraná river basin, Minas Gerais, using gill nets, from November 2001 to October 2002 (tri-monthly captures). Examination of the testes revealed that they were paired, elongated and not fringed organs. Histologically, the testes presented three distinct regions: cranial espermatogenic; transistion espermatogenic and secretory; and caudal exclusively secretory. Standard histochemical techniques detected neutral glycoproteins from the secretion of the tubules of the caudal region. Espermatogenesis occurred in cysts throughout the whole extension of the wall of the seminiferous tubules, which anastomosis themselves and liberated the spermatozoa into the lumen of the espermatic ducts. The ovaries were paired, saculiformes and, histologically, they presented ovigerous lamellae that contained the cells of ovogenic ancestry. The oocytes were classified into four stages, based on their cytological characteristics and the cell layers that surrounded them. Post-ovulatory follicles and vitelogenic oocytes in the follicular atresia process also were observed.
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36
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Porawski M, Wassermann GF, Achaval M. Localization of acid phosphatase activity in the testis of two teleostean species (Oreochromis niloticus and Odonthestes perugiae). BRAZ J BIOL 2004; 64:853-8. [PMID: 15744426 DOI: 10.1590/s1519-69842004000500015] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Acid phosphatase (AcP) activity was investigated in the testes of two species of teleosts in two seasons: summer and winter. AcP activity was detected in Sertoli cells from tilapia (Oreochromis niloticus) only during the nonreproductive period of its annual cycle, corresponding to the winter months. In kingfish (Odonthestes perugiae), the enzymatic reaction was identified during the non-reproductive period (summer) in epithelial cells of the efferent ducts but not in Sertoli cells. These data suggest that the enzyme is involved in the absorption of residual spermatid cytoplasm and as well as in the removal of spermatozoa remaining after the reproductive period. In kingfish, this heterophagous function is carried out by the efferent duct cells and not by Sertoli cells.
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Affiliation(s)
- M Porawski
- Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, CEP 90050-170, Porto Alegre, RS, Brazil
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Sabo-Attwood T, Kroll KJ, Denslow ND. Differential expression of largemouth bass (Micropterus salmoides) estrogen receptor isotypes alpha, beta, and gamma by estradiol. Mol Cell Endocrinol 2004; 218:107-18. [PMID: 15130515 DOI: 10.1016/j.mce.2003.12.007] [Citation(s) in RCA: 157] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2003] [Revised: 12/09/2003] [Accepted: 12/16/2003] [Indexed: 11/30/2022]
Abstract
The expression levels of three estrogen receptor (ER) isotypes alpha, beta, and gamma were quantified in female largemouth bass (Micropterus salmoides) (LMB) liver, ovary, brain, and pituitary tissues. ER alpha and beta expression predominated in the liver, while ERs beta and gamma predominated in the other tissues. Temporally in females, ER alpha was highly up-regulated, ER gamma was slightly up-regulated, and ER beta levels remained unchanged in the liver when plasma 17-beta estradiol (E2) and vitellogenin (Vtg) levels were elevated in the spring. In ovarian tissue from these same fish, all three ERs were maximally expressed in the fall, during early oocyte development and prior to peak plasma E2 levels. When males were injected with E2, ER alpha was highly inducible, ER gamma was moderately up-regulated, and ER beta levels were not affected. None of the ER isotypes were induced by E2 in gonadal tissues. These results combined suggest that the ERs themselves are not regulated in the same manner by E2, and furthermore, do not contribute equally to the transcriptional regulation of genes involved in fish reproduction such as Vtg.
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Affiliation(s)
- Tara Sabo-Attwood
- Interdisciplinary Program in Pharmacology and Therapeutics, University of Florida, Gainesville, FL, USA
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38
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Markova MD, Zhivkova RS. Possible cytoskeletal structures of rainbow trout sperm revealed by electron microscopic observation after detergent extraction. Anim Reprod Sci 2003; 79:127-32. [PMID: 12853186 DOI: 10.1016/s0378-4320(03)00112-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Despite the considerable research interest in fish sperm ultrastructure, little is known about the functions of different sperm cell components. Our electron microscopic study was aimed at identifying possible tissue-specific cytoskeletal structures in spermatozoa of rainbow trout Oncorhynchus mykiss (Teleostei, Salmoniformes, Salmonidae; formerly Salmo gairdneri). Based on the known resistance of the cytoskeleton to nonionic detergents, we compared the ultrastructure of unextracted and Triton-extracted sperm cells. Besides the nucleus, the centrioles and the axoneme, there were also other structures preserved in Triton-treated spermatozoa: the lateral extensions (sidefins) and a thin layer corresponding in position to the membrane-like structure underlying the midpiece plasma membrane in intact cells. Because of their stability, it could be hypothesized that these cytoplasmic components are likely to have cytoskeletal nature. They are possibly analogous to the well known tissue-specific cytoskeletal components of mammalian spermatozoa with periaxonemal and submitochondrial localization.
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Affiliation(s)
- Maya D Markova
- Department of Biology, Medical Faculty, Medical University of Sofia, 1 Sv. Georgi Sofiiski Street, BG-1431, Sofia, Bulgaria.
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39
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Quagio-Grassiotto I, Gameiro MC, Schneider T, Malabarba LR, Oliveira C. Spermiogenesis and spermatozoa ultrastructure in five species of the Curimatidae with some considerations on spermatozoal ultrastructure in the Characiformes. NEOTROPICAL ICHTHYOLOGY 2003. [DOI: 10.1590/s1679-62252003000100004] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Spermiogenesis in the curimatid species, Steindachnerina insculpta, Cyphocharax gillii, C. modestus, C. spilotus, and Potamorhina altamazonica, is characterized by lateral development of the flagellum, nuclear rotation, eccentric nuclear fossa formation, and chromatin compacted into thick fibers. These spermatozoa exhibit a spherical head containing a nucleus with the chromatin highly condensed into thick fibers with small electron-lucent areas, and no acrosome. The nuclear fossa is of the moderate type and eccentric and penetrated by the centriolar complex. The midpiece is small, has many elongate vesicles, and a short cytoplasmic channel. Mitochondria may be elongate, branched or C-shaped, and are separated from the initial segment of the axoneme by the cytoplasmic channel. The flagellum contains the classical axoneme structure (9+2) and has a membranous compartment in the initial region; it does not have lateral fins. Only small differences were observed among the analyzed species and genera of the Curimatidae. Spermiogenesis and spermatozoa in the Curimatidae have many of the characteristics found in almost all other characiform species. On the other hand, the presence of a membranous compartment in the initial region of curimatid flagella, a structure common in many Cypriniformes spermatozoa, is unknown in other characiforms. Spermiogenesis and the spermatozoa of the Characiformes are discussed.
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Nakaghi LSO, Mitsuiki D, Santos HSL, Pacheco MR, Ganeco LN. Morphometry and morphology of nucleus of the Sertoli and interstitial cells of the tambaqui Colossoma macropomum (Cuvier, 1881) (Pisces: Characidae) during the reproductive cycle. BRAZ J BIOL 2003; 63:97-104. [PMID: 12914420 DOI: 10.1590/s1519-69842003000100013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study allowed the characterization of the tambaqui Colossoma macropomum testes structural organization, emphasizing Sertoli and interstitial cells and analyzing morphometrically the Sertoli cell nucleus diameter and the interstitial tissue area during the reproductive cycle. Fragments of tambaqui testes were collected in the following reproductive cycle stages: immature, resting, maturation I and II, mature, and regression, and were histologically processed. The Sertoli cells were found at the periphery of the cysts of germinative lineage cells and the nuclei were shown to be smaller as these cells developed. The interstitial cells were better observed between the seminiferous lobules next to vessels in the interstitial tissue of maturing testes.
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Affiliation(s)
- L S O Nakaghi
- Departamento de Morfologia e Fisiologia Animal, Faculdade de Ciências Agrárias e Veterinárias, UNESP, Via de Acesso Paulo Donato Castellane, km 05, CEP 14884-900, Jaboticabal, SP, Brazil.
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