Warianty tytułu
Rozwój hepatocytów podczas organogenezy świnki (Chondrostoma nasus (L.))
Języki publikacji
Abstrakty
The development of the nase liver was examined under light and electron microscopes from the moment of hatching until the juvenile stage. Three phases of hepatocyte differentiation were observed during the organogenesis of nase livers. In the first phase, from hatching until day 4, the hepatoblasts of the primordial liver are morphologically undifferentiated and divided by sinus vessels. They also store glycogen. In the second phase, from the moment when the mouth cavity becomes passable until the resorption of the yolk sac, organelles typical of the structure of hepatocytes appear and begin to function. At the end of this phase signs of bile lipid synthesis and secretion become visible. The third phase is when exogenous nutrition begins and is characterized by the increased activity of the significant organelles engaged in protein synthesis and secretion, such as the endoplasmic reticulum and the Golgi apparatus.
Na podstawie obserwacji histologicznych i ultrastrukturalnych stwierdzono, że rozwój hepatocytów świnki ma podobny przebieg jak u innych gatunków ryb kostnoszkieletowych. Rozwój hepatocytów świnki można podzielić na trzy okresy obejmujące kolejne fazy odżywiania się. Okres endotroficznego odżywiania, podczas którego rezerwy pęcherzyka żółtkowego są przetwarzane w syncytium okołożółtkowym i rozprowadzane przez system krążenia. Wówczas hepatocyty różnicują się, pojawiają się zapasy glikogenu i niewielka ilość lipoprotein (fot. 1, 2, 3). Drugi okres endo-egzotroficzny rozpoczyna się udrożnieniem jamy ustnej, pobraniem pierwszego pokarmu, zwiększeniem aktywności aparatu Golgiego i wytwarzaniem lipidów żółciowych (fot. 4, 5). Trzeci okres to wyłącznie odżywianie egzogenne, w wątrobie magazynowane są i odtwarzane zapasy glikogenu oraz lipidów (fot. 6, 7).
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Opis fizyczny
p.151-161,fig.,ref.
Twórcy
autor
- Division of Ichtyobiology and Fisheries, Faculty of Animal Science, Warsaw Agricultural University, Ciszewskiego 8, 02-786 Warsaw, Poland
autor
- Division of Ichtyobiology and Fisheries, Faculty of Animal Science, Warsaw Agricultural University, Ciszewskiego 8, 02-786 Warsaw, Poland
Bibliografia
- Bisbal G.A., Bengtson D.A. 1995 - Development of digestive tract in larval summer flounder - J. Fish Biol. 47:277-291.
- Boulhic M., Gabaudan J. 1992 - Histological study of the organogenesis of the digestive system and swim bladder of the Dover sole, Solea solea (Linnaeus 1758) - Aquaculture 102:373-396.
- Byczkowska-Smyk W. 1967 - The ultrastructure of the hepatic cells in the sea trout (Salmo trutta L.) during ontogenesis - Zool. Polon. 17:105-120.
- Chapman G.B. 1981 - Ultrastructure of the liver of the fingerling rainbow trout Salmo gairdneri Richardson - J. Fish Biol. 18: 553-567.
- Diaz J.P., Connes R. 1991 - Development of the liver of the sea bass, Dicentrarchus labrax L. (teleost, fish): II. Hepatocyte differentiation - Biol. Struct. Morphog. 3: 57-65.
- Diaz J-P., Mani-Ponset L., Blasco C., Connes R. 2002 - Cytological detection of the main phases of lipid metabolism during early post-embryonic development in three teleost species: Dicentrarchus labrax, Sparus aurata and Stizostedion lucioperca - Aquat. Liv. Resour. 15:169-178.
- Diaz J.P., Mani-Ponset L., Guyot E., Connes R. 1997 - Biliary lipid secretion during early post-embryonic development in three fishes of aquacultural interest: sea bass, Dicentrarchus labrax L., sea bream, Sparus aurata L., and pike-perch, Stizostedion lucioperca (L) - J. Exp. Zool. 277: 365-370.
- Fishelson L., Becker K. 2001 - Development and aging of the liver and pancreas in the domestic carp, Cyprinus carpio: from embryogenesis to 15-year-old fish - Environ. Biol. Fish. 61: 85-97.
- Guyot E., Diaz J.P., Connes R. 1995 - Organogenesis of liver in sea bream Sparus aurata - J. Fish Biol. 47: 427-437.
- Havel R.J., Hamilton R.L. 1988 - Hepatocytic lipoprotein receptors and intracellular lipoprotein receptors and intracellular lipoprotein catabolism - Hepatology 8:1689-1704.
- Hinton D.E., Pool C.R. 1976 - Ultrastructure of the liver in the channel catfish Ictalurus punctatus (Rafinesque) - J. Fish Biol. 8:209-228.
- Ostaszewska T. 2002 - The morphological and histological development of digestive tract and swim bladder in early organogenesis of pike-perch larval (Stizostedion lucioperca L.) in different rearing environments - Treatises and Monographs. SGGW. Warsaw (in Polish).
- Rocha E., Monteiro R.A.F., Pereira C.A. 1996 - The pale-gray interhepatocytic cells in the brown trout (Salmo trutta) are a subpopulation of liver resident macrophages or do they establish a different cellular type? - J. Submicrosc. Cytol. Pathol. 28: 357-368.
- Segner H., Braunbeck T. 1990 - Adaptive changes of liver composition and structure in golden ide during winter acclimatization - J. Exp. Zool. 255:171-185.
- Spellberg L., Evensen O., Nafstad P. 1994 - Liver of juvenile Atlantic salmon, Salmo salar L., a light, transmission, and scanning electron microscopic study, with special reference to the sinusoid - Anat. Rec. 240: 291-307.
- Takashima F., Hibiya T. 1995 - An atlas of fish histology: normal and pathological features - 2nd edn. Kodansha, Tokyo
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Bibliografia
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