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Labilization of the superficial layer and reduction in size of yolk platelets during early development of xenopus laevis



Labilization of the superficial layer and reduction in size of yolk platelets during early development of xenopus laevis



Cell Differentiation 7(4): 185-192



Yolk platelets from blastulae and gastrulae of X. laevis were isolated by a standardized procedure and examined by EM for evidence of stage-dependent changes of structure. Compared to those from blastulae, gastrula platelets frequently lost the superficial layer during isolation, indicating its increased lability. Platelet dimensions were compared for different stages in situ by light microscopy and gastrula platelets near the animal pole were 10-20% smaller along both elliptical axes relative to blastula platelets. These alterations represent early steps in the preparation of yolk platelets for breakdown.

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Accession: 005787248

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DOI: 10.1016/0045-6039(78)90020-9


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