It was found that callose appears in microsporangium at the microspore mother cell formation stage.

 
  • 隨后胼胝質(zhì)在小孢子母細胞中央開(kāi)始沉積,并向四周擴展形成第1個(gè)赤道板,隨后形成第2個(gè)赤道板;
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