Evidence for the Phagocytotic Removal of Photoreceptive Membrane by Pigment Cells in the Eye of the Planarian, Dugesia japonica : Cell Biology and Morphology
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概要
- 論文の詳細を見る
Fine structural changes induced by daily cycles and dark adaptation were investigated in the eye of Dugesia japonica. During the daily cycle, an irregular arrangement of microvilli and an accumulation of vesicles in the microvillar area were often observed in animals fixed before dawn. The changes before dawn were enhanced as the period of dark adaptation was prolonged. Pigment cells, which surround the microvillar area, are shown to serve much the same function as the vertebrate pigment epithelium. The pigment cells phagocytose the accumulated vesicles and ingested debris is degraded further into granules and membrane whorls. Internalization by the pigment cells is regarded as one of the mechanisms for the photoreceptive membrane removal in the planarian, Dugesia japonica.
- 社団法人日本動物学会の論文
- 1990-06-15
著者
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Tamamaki Nobuaki
Department Of Anatomy Fukui Medical School:(present Address)department Of Neurobiology And Behavior
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Tamamaki Nobuaki
Department Of Anatomy Fukui Medical School
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