Scanning electron microscopic study of cell movements in the corneal endothelium of the avian embryo☆
[摘要] Usingthescanningelectronmicroscopewehaveexaminedtheappearance,insitu,ofthemigratingcellsofthepresumptivecornealendotheliuminthechickembryo.Theprimarystroma,acollagenouslayerwhichservesasamajorsubstrateforthemigrationofthecells,wasfoundtohavemanydeepfoldsandridges.Thecollagenfibrilsofthestroma,asseenonitsposteriorsurface,appeararrangedmoreorlessisotropically.Areasoforthogonalpackingaresmallandrelativelysparse.Whilethecellsmakecontactwiththissubstratumtheydonotseemtobeguidedbyitstopographicfeatures.Themigratingendothelialcellslackwelldevelopedruffles,supportingtheincreasingprevalentideathatthepatternofcellsurfaceactivityobservedinvitroduringcellularlocomotion,isnotanabsoluteprerequisiteforcellmovement.
[发布日期] [发布机构]
[效力级别] [学科分类] 生物科学（综合）
[关键词] [时效性]
