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Titolo:
ROUTE OF EGG-YOLK PROTEIN-UPTAKE IN THE OOCYTES OF KURUMA PRAWN, PENAEUS-JAPONICUS
Autore:
YANO I; KROL RM; OVERSTREET RM; HAWKINS WE;
Indirizzi:
FUKUI PREFECTURAL UNIV,DEPT MARINE BIOSCI FUKUI 917 JAPAN GULF COAST RES LAB OCEAN SPRINGS MS 39564
Titolo Testata:
Marine Biology
fascicolo: 4, volume: 125, anno: 1996,
pagine: 773 - 781
SICI:
0025-3162(1996)125:4<773:ROEPIT>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
UCA-PUGILATOR; FIDDLER CRAB; SHRIMP; LIPOVITELLIN; VITELLIN; OVARY; VANNAMEI;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
I. Yano et al., "ROUTE OF EGG-YOLK PROTEIN-UPTAKE IN THE OOCYTES OF KURUMA PRAWN, PENAEUS-JAPONICUS", Marine Biology, 125(4), 1996, pp. 773-781

Abstract

The route of egg yolk protein uptake into the oocytes of kuruma prawn, Penaeus japonicus, was studied using immunohistochemical and electron microscopical methods. Although a significant immunofluorescence with anti-vitellin-immunoglobulin was observed in the enlarged follicle cells surrounding oil globule stage oocytes of the early vitellogenic ovary, no fluorescence was detected in shrunken follicle cells surrounding oocytes in the yolk granule stage. Electron microscopically, yolk granule stage oocytes have an irregular surface with numerous well-developed microvilli. In contrast, the surface of follicle cells is relatively smooth. The irregular surface of yolk granule stage oocytes was covered with a layer of electron dense material. Similar dense material was found in the spaces between the neighboring follicle cells on the yolk granule stage oocytes. The outer surface of the follicle cells on yolk granule stage oocytes was covered by dense materials which were similar to those found on the irregular surface of oocytes. Micropinocytotic vesicles containing dense material were found in the ooplasm near the irregular surface with numerous well-developed microvilli. Dense material was concentrated in the peripheral part of the small forming yolk bodies of yolk granule stage oocytes. This suggests that the electron dense material, probably egg yolk protein, transferred to thesurface of yolk granule stage oocytes from the spaces between the neighboring follicle cells may be incorporated into the ooplasm by pinocytosis through the microvilli and subsequently aggregate to form yolk bodies.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 10:01:11