中文摘要：

利用常规石蜡切片技术对雷竹大孢子发生与雌配子体发育的过程进行研究。结果表明：雷竹单子房,子房1室,内具1个倒生胚珠;双珠被,厚珠心;大孢子母细胞由1个雌性孢原细胞直接发育而成,大孢子四分体呈线型;蓼型胚囊,成熟胚囊包括1个卵细胞、2个助细胞、2个极核组成的中央细胞以及多个反足细胞,助细胞具明显丝状器。雌配子体发育多数正常,不是造成雷竹结实率低的主要原因。

英文摘要：

Megasporogenesis and female gametophyte development of Phyllostachys violascens were studied by classical paraffin microtome techniques. The observed results are as followed： There is a simple ovary,which is unilocular and uniovulate,in one floret. The ovule is anatropous,bitegminous and crassinucellate. The megasporocyte undergoes meiotic division to form linear megaspore tetrad. The embryo sac is polygonum type,including one egg cell,two synergid cells with evident filiform apparatus,one central cell consisting of two polar nuclei,and numerous antipodal cells. The development of the most female gametophyte is normal,which is not the main reason of low seed setting rate of P. violascens.