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Observations on collagen synthesis, lattice formation, and morphology of scaleless and normal embryonic skin☆☆☆
[摘要] Intactscalelessskin,fromareaswhichinnormalembryoshavefeathers,lacksabirefringentfibrouslatticewhichconnectsthedermalcondensations.Recombinationsbetweenscalelessandnormalskincomponentshavethebirefringentdermallatticeanddermalcondensationsonlywheneithermutantornormalmesodermiscoveredwithageneticallynormalectoderm.Skinscomposedofmesodermofeithergenotypecoveredbyascalelessectodermdonothavethebirefringentlattice,nordotheyhavedermalcondensations.Inviewoftheproposedcollagenousnatureofthefibrouslattice,collagensynthesiswasestimatedinbothnormalandmutantskinstoinvestigatethepossibilitythatscalelessskinmightsynthesizereducedlevelsofcollagen.Ourresultsindicatethatscalelessdorsalskinsynthesizesatleastasmuchcollagenasnormalskins.Theresultssuggestthattheabsenceofafibrouslatticeisnottheresultofareducedsynthesis,butmorelikelytheresultofafailureofsynthesizedcollagentobeorganizedintoalattice.
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[效力级别]  [学科分类] 生物科学(综合)
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