半夏胚胎发育的研究

STUDY ON DEVELOPING PROCESS OF EMBRYO IN PINELLIA TERNATA

1.
Wuhan Institute of Botany, The Chinese Academy of Sciences of Sciences Wuhan 430074
2.
Chengdu Institute of Biology, The Chinese Academy of Sciences Chengdu 610015

摘要: 半夏的大小孢子发育均属正常类型。只是种子成熟时没有胚的分化,而是形成一个原球茎。生长点的分化过程类似于珠芽的形成。种子发芽时原球茎突出种皮,在生长点下面的细胞,经过分裂,形成一个膨大的结构。根、叶原基的分化是在发芽过程中逐步完成的。
- 半夏 /
- 胚胎发育
Abstract: The developments of the pollen and megaspore cells of Pinellina ternata follow basic-type.When the seed is mature, its embryo is at the proembryo stage without differentiation, which is called a protocorm.The developing process of the embryo is similar to that of a bulbil.When the seed begins to germinate, the protocorm breaks through the seed coat, forms a ball-type structure and finishes its differentiation.
- Pinellia ternata(Thunb.)Breit. /
- Embryo development