In the early stage of the archegonia development of osmunda japonica, the osmiophilic materials occur in the vacuoles of the jacket cells of the archegonium, and these materials increase with the development of the egg.

  • 在紫萁颈卵器发育早期即可见其壁细胞的液泡内有嗜锇性颗粒,这些嗜锇颗粒随着卵的发育逐渐增多。

  • 互联网摘选 2025-01-19 23:46:43

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