Desenvolvimento dos ovários da lagosta Panulirus echinatus (Crustacea: Palinuridae) baseados nas análises macroscópica, microscópica e relação gonadossomática (RGS)

Barreto, Aline do Vale; Silva, José R. F.; Katsuragawa, Mario; Raposo, Maria Cristina Falcão

doi:10.1590/s0101-81752008000400014

Cited by 3 publications

(3 citation statements)

References 15 publications

(15 reference statements)

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“…In this study, the oogonia and oocytes I and II presented cytoplasm strongly reactive to hematoxylin. As maturation progresses, the cytoplasm becomes acidophilic due to the accumulation of yolk granules, a feature that agrees with the results obtained for Artemesia longinaris Bate, 1888 and Panulirus echinatus Smith, 1869 by Dumont and D'Incao (2004) and Barreto et al (2008), respectively. The cells increase drastically in size and weight, as they initiate yolk production.…”

Section: Discussionsupporting

confidence: 89%

Histological and histochemical features of the oogenesis in the simultaneous protandric hermaphrodite shrimp Exhippolysmata oplophoroides (Decapoda: Caridea)

Braga

Nunes

López-Grecco

et al. 2016

Micron

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This study analyzes the dynamics of the vitellogenesis process in the simultaneous protandric hermaphrodite shrimp Exhippolysmata oplophoroides, based on light microscopic observations. The ovotestes of the shrimps at the different gonadal development stages were removed, fixed and submitted an usual histological procedure (HE) and histochemical techniques (Bromophenol Blue, PAS/Alcian Blue, and Von Kossa tests). The germinative cells were classified into oogonias, and oocytes in stages I-IV based on the following features: cell size, cytoplasm appearance, presence of yolk granules, lipid droplets, chorion, and chromatin patterns. In the male initial phase of the gonadal development, the ovotestes present mainly oogonia and oocytes I and II while in the functional hermaphrodite phase, oocytes III and IV predominate in the peripheral zone of the gonads. Oocytes with an atypical appearance of the cellular components indicative of reabsorption were also observed. This study showed an increasing accumulation of proteins, carbohydrates and lipids occurring as the germ cells develop, being the yolk elements deposited in a sequence, in which proteins and carbohydrates are the first to appear both by an endogenous as well as also by an exogenous origin. The presence of calcium was detected mainly in oocytes I, II and inside those in reabsorption, being posteriorly mobilized to chorion constitution and/or to hemolymph due to its role during molting. Although the similarity of the germ cells shape among the crustaceans, this first histochemical characterization of E. oplophoproides ovary increases the comprehension of oogenesis in a caridean simultaneous protandric hermaphrodite species.

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Section: Discussionsupporting

confidence: 89%

Histological and histochemical features of the oogenesis in the simultaneous protandric hermaphrodite shrimp Exhippolysmata oplophoroides (Decapoda: Caridea)

Braga

Nunes

López-Grecco

et al. 2016

Micron

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“…Resultados semelhantes foram encontrados por outros pesquisadores (SANTANA et al, 2010;BARRETO et al, 2008).…”

Section: Ováriosunclassified

Descrição do sistema reprodutor feminino do ucides cordatus (linnaeus, 1763) em soure (Marajó/PA)

Leal¹,

Gonçalves²,

Ferreira³

et al. 2021

Revista Científica Multidisciplinar Núcleo do Conhecimento

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A espécie de caranguejo Ucides cordatus é amplamente explorada nas regiões norte e nordeste do Brasil. Estudos relacionados à biologia reprodutiva são de extrema relevância, pois fornecem informações que contribuem para manutenção dos estoques populacionais. Consequentemente, este estudo objetivou realizar a descrição morfológica do sistema reprodutor das fêmeas do caranguejo U. cordatus. As coletas ocorreram no município de Soure (Pará – Brasil). Foram capturados 26 exemplares fêmeas e levados para o laboratório, onde os órgãos coletados foram submetidos à análise macroscópica e processamento histológico. As observações permitiram a descrição morfológica do sistema reprodutor completo. Os resultados mostram que além da vagina está conectada ao gonóporo, apresenta tecido muscular associado. Sugere-se que essa característica promova o controle da abertura e fechamento do gonóporo em diferentes eventos. Os ovários possuem internamente células germinativas e acessórias, são revestidos por tecido conjuntivo que se estende até o oviduto, proporcionando a conexão entre essas duas estruturas. Os receptáculos seminais são constituídos de tecido epitelial, tecido conjuntivo e projeções do epitélio na parte final. O oviduto é revestido por tecido epitelial, conecta diretamente o ovário, receptáculo seminal e vagina e pode estar relacionado a fertilização interna, já que é o ponto em comum entre os órgãos do sistema reprodutor feminino do U.cordatus.

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“…Barreto et al (2003) estimated that at the onset of sexual maturity of the male P. echinatus , the carapace length was approximately 7.0 mm in average. The development of the gonads of both genders of P. echinatus is described in detail by Barreto & Katsuragawa (2008) and Barreto et al (2008).…”

Section: Introductionmentioning

confidence: 99%

Biometric relationships of the spotted lobster,Panulirus echinatus, from Tamandaré coastal reefs, Pernambuco State, Brazil

et al. 2009

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Biometric relationships were recorded for 2431 male and female Panulirus echinatus sampled at Tamandaré coastal reefs, Pernambuco, Brazil. The following body measurements were taken: carapace length and width, abdomen length and width, total length, third and fifth pereiopod length, cephalothorax–abdomen and total weight. Twelve relationships were studied to compare the biometric characteristics of males and females. Eleven of them showed difference between the sexes. Comparing sexes with the same carapace length, males have a heavier cephalothorax and longer third and fifth pereiopods than females, whereas females are longer, wider, and have a heavier abdomen than males. For genders with the same total length, males are heavier and have a longer carapace than females, while females have a larger abdomen. For genders with the same abdomen length, males have a heavier abdomen than females. The relationships TWg/TL and AWg/AL showed positive allometric growth for the males. All other relationships involving weight, presented negative allometric growth for both sexes.

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Desenvolvimento dos ovários da lagosta Panulirus echinatus (Crustacea: Palinuridae) baseados nas análises macroscópica, microscópica e relação gonadossomática (RGS)

Cited by 3 publications

References 15 publications

Histological and histochemical features of the oogenesis in the simultaneous protandric hermaphrodite shrimp Exhippolysmata oplophoroides (Decapoda: Caridea)

Histological and histochemical features of the oogenesis in the simultaneous protandric hermaphrodite shrimp Exhippolysmata oplophoroides (Decapoda: Caridea)

Descrição do sistema reprodutor feminino do ucides cordatus (linnaeus, 1763) em soure (Marajó/PA)

Biometric relationships of the spotted lobster,Panulirus echinatus, from Tamandaré coastal reefs, Pernambuco State, Brazil

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