The polar and egg nuclei of the female gametophyte are genetically identical . 雌配子体中的极核和卵核遗传上是同一的。
The gametophyte is derived from the product of a reduction division in the megaspore mother cell . 该配子体是由大孢子母细胞进行减数分裂而来。
A study on the development of the anther and the male gametophyte in 单穗升麻的花药和雄配子体发育
The female gametophyte is represented by the embryosac , the archegonia being absent 雌性配子体存在于胚囊中,颈卵器缺失。
The female gametophyte is reduced , but larger than in angiosperms ; it is not autotrophic 裸子植物的雌配子体简化,但较被子植物体的体积大,不能自养。
The megasporogenesis and microsporogenesis of phytolacca acinosa roxb . and formation of its male and female gametophytes 商陆大小孢子的发生和雌雄配子体的形成
They show a heteromorphic alternation of generations , the gametophyte eging the dominant generation 苔藓植物具有明显的世代交替现象,配子体在世代交替中占优势。
The present paper deals with the microsporogenesis and the development of its male gametophytes and the anther wall 论述单穗升麻的小孢子发生和雄配子体发育以及花药壁的发育。
Light plays very important role in the growth of gametophyte clone . light time and intensity affect its growth directly 在光周期为24h d ,光照强度为1500 - 2500lux条件下,克隆细胞具有最快的生长速度。
In vascular plants the diploid sporophyte is the dominant phase and in the ferns , for example , the gametophyte is a small prothallus 在维管植物(蕨类)中二倍体的孢子体占生活史的主要部分,配子体仅为原叶体。