AbstractSea urchin eggs are generally considered as most suitable animal models for studying fertilization processes and embryonic development. In the present study, they are used for determining a possible role of gravity in fertilization and the establishment of egg polarity and the embryonic axis. For this purpose, eggs of the particularly well known and suitable species Paracentrotus lividus have been automatically fertilized under microgravity conditions during the Swedish sounding rocket flights MASER IV and MASER V. It turns out, that fertilization “in Space” occurs normally and that subsequent embryonic and larval development of such eggs, continued on the ground, is normal, leading to advanced pluteus stages.


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    Title :

    Fertilization of sea urchin eggs in space and subsequent development under normal conditions


    Contributors:

    Published in:

    Advances in Space Research ; 14 , 8 ; 197-208


    Publication date :

    1994-01-01


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Fertilization of Sea Urchin Eggs in Space and Subsequent Development Under Normal Conditions

    Marthy, H.-J. / Schatt, P. / Santella, L. et al. | British Library Conference Proceedings | 1994


    Sea urchin eggs under microgravity conditions

    Marthy, H.-J. | British Library Online Contents | 1997


    Microgravity effects on sea urchin fertilization and development

    Steffen, S. / Fiser, R. / Simerly, C. et al. | Elsevier | 1991


    Microgravity effects of sea urchin fertilization and development

    Steffen, S. / Simerly, C. / Schatten, H. et al. | NTRS | 1992


    Fertilization of frog eggs on a sounding rocket in space

    Ubbels, G.A. / Berendsen, W. / Narraway, J. | Elsevier | 1989