K<sup>+</sup>和Li<sup>+</sup>浸泡刺激海胆的排卵反应

K⁺和Li⁺浸泡刺激海胆的排卵反应

摘要: 马粪海胆(Hemicentrotus pulchernimus)在0.5mol dm³KCl或0.5moldm³ LiCl刺激下,能排放出卵子或精子,对海胆没有损伤作用,继续养起来还可再用,卵子在KCl或LiCl溶液中不能同精子受精.为了使两种性细胞进行正常的受精作用,可将卵子从KCl或LiCl溶液中很快移至海水中,或一发现海胆在KCl或LiCl溶液作用下排放性产物时,便立刻转移到海水中,使其产卵或排精于海水里,这样的卵子和精子可进行正常的结合.LiCl溶液诱导排放的卵子的受精率高于KCl溶液,可达98%.

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