| 1. | 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 |
| 2. | The microsporogenesis and male gamephyte development of psathyrostachys huashanica keng
华山新麦草小孢子发生及雄配子体的形成 |
| 3. | 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 |
| 4. | But the plants did n ' t accept this fact passively , instead they took active strategies of adaptability , such as mass blossom , prolonging the functional period of female and male gametophyte , and generalization of pollen medium
但植物并非被动地接受这一事实，而采取了积极的适应对策：大量开花，延长雌雄配子体的功能期和传粉媒介的泛化。 |
| 5. | In order to explore the seedless mechanism of ponkan ( citrus reticulata blanco ) , new seedless ponkan cultivar lipeng no . 2 and common seedy ponkan cultivar were used as materials for observing fertility and compatibility of male and female gametophyte
摘要为系统探明?柑无核发生的机制，以无核?柑新品种丽? 2号和普通有核?柑为试材，对雌雄配子体的育性和亲和性进行了观察。 |
| 6. | The gametophyte ( pollen grain ) contains all the genetic information required to unite with the female gamete at fertilization and to form a new sporephyte . a relatively large number of genes are required to program pollen development
在高等植物中，花的发育是一个复杂的过程，涉及到由营养分生组织(或花序分生组织)向花分生组织的转变，花的形态建成以及雌、雄配子体的发育和分化。 |
| 7. | In addition , it has been found that the number of attached spores on the surface of ionic hydrogels was affacted by the crosslinking density of gels , but the germination ratio of attached spores and growth of gametes have nothing to do with the crosslinking density of gels
此外，离子型凝胶表面孢子的附着量受凝胶的交联度影响，而孢子的萌发率以及配子体的生长发育均与凝胶的交联度无关。 |
| 8. | Like thallose liverworts , the hornworts have an alternation of generations in which the gametophyte is a dorsiventral flattened green phallus and the saprophyte is an upright structure that has a foot embedded in the gametophytes , from which it draws nutrition
与叶状体植物地钱一样，角苔具有明显的世代交替， ，配子体在世代交替中占优势，孢子体占劣势且利用其基足插入配子体的组织中吸取养料，以供孢子体生长。 |
| 9. | A genetic transformation model for the brown seaweed undaria pinnatifida has been primarily set up by using micro - particle bombardment as the method , female or male gametophytes as the gene recipients , hybridization as the regeneration route and chloramphenicol , hygromycin or basta as selective reagents
本文从转化受体、转化方法、报告基因、再生途径、筛选方法等方面对裙带菜的遗传转化进行了研究。首先，分离并建立了裙带菜雌雄配子体的无性繁殖系，进行了裙带菜的不同再生途径的研究。 |
