The polar and egg nuclei of the female gametophyte are genetically identical . 雌配子體中的極核和卵核遺傳上是同一的。
The female gametophyte is represented by the embryosac , the archegonia being absent 雌性配子體存在于胚囊中,頸卵器缺失。
The female gametophyte is reduced , but larger than in angiosperms ; it is not autotrophic 裸子植物的雌配子體簡化,但較被子植物體的體積大,不能自養(yǎng)。
The megasporogenesis and microsporogenesis of phytolacca acinosa roxb . and formation of its male and female gametophytes 商陸大小孢子的發(fā)生和雌雄配子體的形成
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 摘要為系統(tǒng)探明?柑無核發(fā)生的機(jī)制,以無核?柑新品種麗? 2號和普通有核?柑為試材,對雌雄配子體的育性和親和性進(jìn)行了觀察。
Several vegetative clones of male or female gametophytes of u . pinnatifida has been induced and parthenogenesis of female gametophytes has been observed . 90 % of the gametophytes can grow into young sporophytes one month after fertilization . no staining background of either lacz or gus was found in different tissues of u . pinnatifida 進(jìn)行裙帶菜配子體孤雌生殖、孤雄生殖和雌雄受精的再生途徑實驗,結(jié)果沒有得到孤雄生殖的裙帶菜,孤雌生殖的效率低、時間長且發(fā)育不正常,雌雄受精的再生途徑一個月左右90 %以上的雌配子體都正常萌發(fā)成幼孢子體。