Freshwater stingray embryos store yolk in their intestinal epithelial cells

Freshwater stingray embryos store yolk in their intestinal epithelial cells

Intestines of freshwater stingray embryos sampled in South America were examined histologically. During embryonic development, yolk, which is transported through the yolk stalk from the external yolk sac, appeared to be accumulating in the intestinal epithelial cells of larger embryos. The yolk (or...

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Veröffentlicht in:Journal of National Fisheries University (Japan) 2016-03, Vol.64 (3), p.182-187
Hauptverfasser: Teshima, Kazuyuki, Tomonaga, Susumu
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Sprache:jpn
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Disceus thayeri
Potamotrygon magdalenae
Potamotrygon motoro
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container_title Journal of National Fisheries University (Japan)
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creator Teshima, Kazuyuki
Tomonaga, Susumu
description Intestines of freshwater stingray embryos sampled in South America were examined histologically. During embryonic development, yolk, which is transported through the yolk stalk from the external yolk sac, appeared to be accumulating in the intestinal epithelial cells of larger embryos. The yolk (or yolk derived/originated substances) that accumulated in the intestinal epithelial cells may provide nutrients that enable the embryos to survive the vulnerable period immediately after birth.
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source AgriKnowledge（アグリナレッジ）AGROLib
subjects Disceus thayeri
Potamotrygon magdalenae
Potamotrygon motoro
title Freshwater stingray embryos store yolk in their intestinal epithelial cells
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