| 1. | 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。 |
| 2. | Review on the megastrobilus theories of conifers 松杉类裸子植物的大孢子叶球理论评述 |
| 3. | It has evolved by fusion of the two edges of the megasporophyll 心皮是由大孢子叶两边愈合进化而来的。 |
| 4. | Triticum aestivum ; megasporocyte ; meiosis ; cytoplasmic reorganization 小麦大孢子母细胞减数分裂细胞质改组 |
| 5. | The macrosporogenesis and female gamephyte development of psathyrostachys huashanica 华山新麦草大孢子发生和雌配子体的形成 |
| 6. | Of the four products of a megaspore mother cell , three usually abort 在大孢子母细胞分裂产生的四个孢子中,三个会解体消失。 |
| 7. | Ultrastructural studies on megasporogenesis in triticum aestivum l . ultrastructural studies on megasporogenesis in 小麦大孢子发生过程中的超微结构研究 |
| 8. | In theterosporous species , a distinction is usually made between megaspore mother cells and microspore mother cells 在异型孢子体种类中,可区分为大孢子母细胞和小孢子母细胞。 |
| 9. | The carpel is homologous with the megasporophylls of certain spore - bearing vascular plants ( pteridophytes ) and the ovuliferous scales of gymnosperms 心皮和能产生孢子的维管植物(羊齿类)还有具胚珠的裸子植物的大孢子叶是同源的。 |
| 10. | In the clubmosses and horsetails only one type of strobilus is formed , while in the gymnosperms female megastrobili and male microstrobili both develop 石松和楔叶类只形成一种类型的球果,然而裸子植物既有雌性的大孢子叶球也有雄性的小孢子叶球。 |