Development of hypophysis and differentiation of its secretory cells at the early postembryonic development of silver carp Hypophthalmichthys molitrix (cyprinidae)

Burlakov, A. V.; Dobrynina, M. T.; Медведева, А. А.; Poluektova, O. G.

doi:10.1134/s0032945206010127

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…In other Cypriniformes the NH appeared in larvae c . 2 dah in D. rerio (Chapman et al ., ), and in larvae 2·5 dah of the silver carp Hypophthalmichthys molitrix (Valenciennes 1844) (Burlakov et al ., ). In P. andruzzii NH the infundibular recess characterizing the adult gland was still absent in juveniles 130 dah, suggesting that the gland had not yet completed its development.…”

Section: Discussionmentioning

confidence: 99%

“…A neurohypophysis (NH) was not yet identifiable in larvae 2·5 dah, suggesting the absence of a functional hypothalamic-pituitary system for neuroendocrine control of early larval functions, as in the golden dorado Salminus brasiliensis (Cuvier 1816) (Characiformes) in which NH appeared in larvae 3 dah (de Jesus et al, 2014). In other Cypriniformes the NH appeared in larvae c. 2 dah in D. rerio (Chapman et al, 2005), and in larvae 2·5 dah of the silver carp Hypophthalmichthys molitrix (Valenciennes 1844) (Burlakov et al, 2006). In P. andruzzii NH the infundibular recess characterizing the adult gland was still absent in juveniles 130 dah, suggesting that the gland had not yet completed its development.…”

Section: Discussionmentioning

confidence: 99%

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Immunocytochemical identification and ontogeny of adenohypophyseal cells in a cave fish, Phreatichthys andruzzii (Cypriniformes: Cyprinidae)

Grandi

Pezzi

Marchetti

et al. 2017

Journal of Fish Biology

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The morphogenesis of the pituitary gland and the chronological appearance of adenohypophyseal cells were investigated for the first time in the Somalian cave fish Phreatichthys andruzzii by immunocytochemistry. The adult adenohypophysis contained: a rostral pars distalis, with prolactin (PRL) cells arranged in follicles and adrenocorticotropic (ACTH) cells, a proximal pars distalis with somatotropic (GH), β-thyrotropic (TSH), β-gonadotropic type I (FSH) and type II (LH) cells and a pars intermedia with α-somatolactin (SL), α-melanotropic (MSH) and β-endorphin (END) cells. All regions were deeply penetrated by neurohypophyseal branches. At hatching (24 h post-fertilization) the pituitary was an oval cell mass, close to the ventral margin of diencephalon. The first immunoreactive cells appeared as follows: PRL at 0·5 days after hatching (dah), GH and SL at 1·5 dah, END at 2 dah, TSH, ACTH and MSH at 2·5 dah, FSH at 28 dah and LH at 90 dah. The neurohypophysis appeared at 5 dah and branched extensively inside the adenohypophysis at 130 dah, but there was no boundary between rostral pars distalis and proximal pars distalis at this stage. The potential indices of prolactin and growth hormone production increased until 28 and 60 dah, respectively. The potential index of growth hormone production correlated positively with total length. Activity of PRL and GH cells, measured as ratio of cell area to nucleus area, was significantly higher in juveniles than in larvae.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Immunocytochemical identification and ontogeny of adenohypophyseal cells in a cave fish, Phreatichthys andruzzii (Cypriniformes: Cyprinidae)

Grandi

Pezzi

Marchetti

et al. 2017

Journal of Fish Biology

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Particularities of early life stages in temperate freshwater fish species: comparisons with marine species and implications for aquaculture practices

Telehea

Fontaine

2011

Aquaculture Research

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Both egg and larvae are different between freshwater and marine fish species. Freshwater fish species have generally larger and fewer eggs than marine species. Most freshwater fish species have demersal eggs that develop stuck to various substrata, such as plants or gravels, while eggs of most marine fish species develop in the water column. These differences have consequences for both the evaluation of the quality and the incubation of eggs of freshwater fish species compared with marine species. The larvae of many freshwater fish species are larger and more developed at hatching than their marine counterparts: thus, larval feeding regimes could be different and cannibalism may emerge sooner in certain freshwater fish species. The main differences of egg and larvae between freshwater and marine species are highlighted and the possible implications for aquaculture practices are discussed.

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Development of hypophysis and differentiation of its secretory cells at the early postembryonic development of silver carp Hypophthalmichthys molitrix (cyprinidae)

Cited by 2 publications

References 19 publications

Immunocytochemical identification and ontogeny of adenohypophyseal cells in a cave fish, Phreatichthys andruzzii (Cypriniformes: Cyprinidae)

Immunocytochemical identification and ontogeny of adenohypophyseal cells in a cave fish, Phreatichthys andruzzii (Cypriniformes: Cyprinidae)

Particularities of early life stages in temperate freshwater fish species: comparisons with marine species and implications for aquaculture practices

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