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Amphibian development in the virtual absence of gravity.

机译:两栖动物的发育几乎没有引力。

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摘要

To test whether gravity is required for normal amphibian development, Xenopus laevis females were induced to ovulate aboard the orbiting Space Shuttle. Eggs were fertilized in vitro, and although early embryonic stages showed some abnormalities, the embryos were able to regulate and produce nearly normal larvae. These results demonstrate that a vertebrate can ovulate in the virtual absence of gravity and that the eggs can develop to a free-living stage.
机译:为了测试正常的两栖动物发育是否需要重力,非洲爪蟾雌性被诱使在航天飞机上排卵。卵在体外受精,尽管早期胚胎期显示出一些异常,但胚胎能够调节并产生接近正常的幼虫。这些结果表明,在没有重力的情况下,脊椎动物可以排卵,卵可以发育到自由生活阶段。

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