Ultrastructure of ovarian follicular epithelium of the Amazonian fish Pseudotylosurus microps (Teleostei: Belonidae): morphological and histochemical characterization of the intercellular deposits

Cruz-Landim, Carminda da; Cruz‐Höfling, Maria Alice da

doi:10.1590/s0034-71082001000100017

Cited by 6 publications

(7 citation statements)

References 20 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The oogenesis in Ch. humboldtianum is not very different from that in other teleosts , Wallace and Selman 1990, Grier 2000, Cruz-Landim and Cruz-Höfling 2001, Higashino et al, 2002, Abascal and Medina, 2005 and ultrastructural observations corroborate a similar development of the oocyte as in other species. It is generally accepted that oocytes in teleosts arise from the germinal epithelium that border the lumen of the ovary Selman 1990, Grier 2000).…”

Section: Early Oogenesissupporting

confidence: 81%

Oocyte structure and ultrastructure in the Mexican silverside fish Chirostoma humboldtianum (Atheriniformes: Atherinopsidae)

Cárdenas¹,

Chávez²,

González³

et al. 2007

RBT

View full text Add to dashboard Cite

the structural and ultrastructural features of gonads from endemic Mexican fish have received scarce attention. This study describes the histological and ultrastructural characteristics of the oocyte in Chirostoma humboldtianum. The ovary is asynchronic, and as such, most phases of oocyte development are found in the same ovary. The complete process of oogenesis was divided in five stages: oogonium and folliculogenesis, primary growth, cortical alveoli and lipid inclusions, vitellogenesis and maturation. The presence of big filaments, which appear at the end of primary growth, induces some common follicular adaptation. During primary growth, abundant ribosomes, rough endoplasmic reticulum, and mitochondria are grouped in the cytoplasm. At the end of this stage, the Z1 layer of the chorion is developed, while microvilli start to be evident as well. In the cortical alveoli and lipid droplets phase, intense PAS positive vesicles, some of them containing nucleoid material, are observed in the peripheral cytoplasm and the lipid droplets take a more central position. In vitellogenesis, the proteic yolk accumulates in a centripetal way while the chorion is completely formed. In maturation, the germinal vesicle migrates to the animal pole, meiosis is restored, and there is nuclear breakdown. The oocyte increases its size and holds some oil droplets and a big fluid mass of yolk. On the outside, filaments surround the oocyte completely. Rev. Biol. Trop. 56 (4): 1825-1835. Epub 2008 December 12.

show abstract

Section: Early Oogenesissupporting

confidence: 81%

Oocyte structure and ultrastructure in the Mexican silverside fish Chirostoma humboldtianum (Atheriniformes: Atherinopsidae)

Cárdenas¹,

Chávez²,

González³

et al. 2007

RBT

View full text Add to dashboard Cite

show abstract

“…The latter is in turn coated by the thecal layer. Similar observations were noticed in Pseudotylosurus microps (Cruz-Landim and Cruz-Hofling, 2001), in Mugil cephalus (Assem et al, 2008) and in Chirostoma humboldtianum (Cárdenas et al, 2008).…”

Section: Discussionsupporting

confidence: 81%

Morphological, histological and ultrastructural studies on the ovaries of Liza carinata from the suez bay in correlation with its reproductive cycle

El-Rahman

El-Shabaka

et al. 2015

Egypt. J. of Aquatic Biolo. and Fish.

View full text Add to dashboard Cite

Liza carinata is considered as a common and economically important Mugilidae fish of the Red Sea. Knowledge of the gonadal cycle in fishes has a great importance in the successful management of fisheries. The present study was undertaken to gain more information about the morphological, histological and ultrastructural aspects of the ovaries of L. carinata during the different seasons of its reproductive cycle in the Suez Bay. The maturity stages of the ovaries of L. carinata can be classified into four stages, namely: the early post-spawning, late post-spawning, pre-spawning and spawning stages. Besides, L. carinata spawns from late September to late December. Moreover, the oogenesis of L. carinata is divided into seven stages. These stages are the oogonia, chromatin-nucleolar, early peri-nucleolar, late peri-nucleolar, vacuolated, early yolk globular and late yolk globular stages. In addition, the ovaries also contain the post-ovulatory structures and atretic follicles. The former are formed of the hypertrophied follicular cells after the discharge of the mature ovum, while the latter are formed as a result of the sudden cease growth of the oocytes. The present observations may help in understanding the strategy of reproduction of L. carinata in the Suez Bay that may help in its aquaculture.

show abstract

“…Oogenesis in C. humboldtianum is not very different from that in other teleosts , Wallace & Selman 1990, Grier 2000, Cruz-Landim & Cruz-Höfling 2001, Higashino et al, 2002, Abascal & Medina, 2005 and ultrastructural observations corroborate a similar development of the oocyte as in other species. It is generally accepted that oocytes in teleosts arise from the germinal epithelium that border the lumen of the ovary (Wallace & Selman 1990, Grier 2000.…”

Section: Discussionsupporting

confidence: 78%

Oocyte structure and ultrastructure in the Mexican silverside fish Chirostoma humboldtianum (Atheriniforme: Atherinopsidae)

Cárdenas¹,

Chávez²,

González³

et al. 2007

RBT

View full text Add to dashboard Cite

The structural and ultrastructural features of gonads from endemic Mexican fish have received scarce attention. This study describes the histological and ultrastructural characteristics of oocyte from Chirostoma humboldtianum. The ovary is asynchronic, and as such, most phases of oocyte development are found in the same ovary. The complete process of oogenesis was divided in five stages: oogonium and folliculogenesis, primary growth, cortical alveoli and lipid inclusions, vitellogenesis, and maturation. The presence of big filaments, which appear at the end of primary growth, induces some common follicular adaptation. During primary growth, abundant ribosomes, the rough endoplasmic reticulum, and mitochondria are grouped in the cytoplasm. At the end of this stage, the Z1 layer of the chorion is developed, while microvilli start to be evident. In the cortical alveoli and lipid droplets phase, intense PAS positive vesicles, some of them containing nucleoid material, are observed in the peripheral cytoplasm and the lipid droplets take a more central position. In vitellogenesis, the proteic yolk accumulates in a centripetal way while the chorion is completely formed. During maturation, the germinal vesicle migrates to the animal pole, meiosis is restored, and there is nuclear breakdown. The oocyte increases its size and holds some oil droplets and a big fluid mass of yolk. On the outside, filaments completely surround the oocyte. Rev. Biol. Trop. 56 (3): 1371-1380. Epub 2008 September 30.

show abstract

Ultrastructure of ovarian follicular epithelium of the Amazonian fish Pseudotylosurus microps (Teleostei: Belonidae): morphological and histochemical characterization of the intercellular deposits

Cited by 6 publications

References 20 publications

Oocyte structure and ultrastructure in the Mexican silverside fish Chirostoma humboldtianum (Atheriniformes: Atherinopsidae)

Oocyte structure and ultrastructure in the Mexican silverside fish Chirostoma humboldtianum (Atheriniformes: Atherinopsidae)

Morphological, histological and ultrastructural studies on the ovaries of Liza carinata from the suez bay in correlation with its reproductive cycle

Oocyte structure and ultrastructure in the Mexican silverside fish Chirostoma humboldtianum (Atheriniforme: Atherinopsidae)

Contact Info

Product

Resources

About