《植物生殖生物学》课程教学课件（PPT讲稿）Chapter 4 受精生物学 Fertilization

Chapter4受精生物学 (Fertilization) 1. 花粉在柱头上萌发和花粉管伸长 Pollen germination and pollen tube growth 2. 花粉管到达胚珠和进入胚囊 Entry of pollen tube into stigma and style,and to embryo sac Biology of plant reproduction

Biology of plant reproduction 1 Chapter 4 受精生物学 （Fertilization） 1. 花粉在柱头上萌发和花粉管伸长 Pollen germination and pollen tube growth 2. 花粉管到达胚珠和进入胚囊 Entry of pollen tube into stigma and style, and to embryo sac

3.双受精作用 Fertilization 4. 非正常双受精现象 Abnormal fertilization Biology of plant reproduction 2

Biology of plant reproduction 2 3. 双受精作用 Fertilization 4. 非正常双受精现象 Abnormal fertilization

1. 花粉在柱头上萌发和花粉管伸长 Pollen germination and pollen tube growth 1.1花粉萌发pollen gernimination 1.1.1花粉粘附在柱头上sticking and hydration 湿润型(the solid type,mostly present in dicotyledons) Biology of plant w reproduction

Biology of plant reproduction 3 1. 花粉在柱头上萌发和花粉管伸长 Pollen germination and pollen tube growth 1.1 花粉萌发 pollen gernimination 1.1 .1 花粉粘附在柱头上sticking and hydration 湿润型(the solid type, mostly present in dicotyledons)

干燥型(the open type,which is mostly present in monocotyledons;or it has a solid core of transmitting tissue) Biology of plant reproduction

Biology of plant reproduction 4 干 燥 型 (the open type, which is mostly present in monocotyledons; or it has a solid core of transmitting tissue)

子揽物有 图说高将教有出质甘 1.茑萝(Quamoclit pennata),干柱头，具多裂瓣 Biology of plant reproduction 5

Biology of plant reproduction 5 1.茑萝(Quamoclit pennata)，干柱头，具多裂瓣

生园 ③未传粉柱头，乳突放大 Biology of plant reproduction 6

Biology of plant reproduction 6 ③未传粉柱头，乳突放大

被字恒物有性生殖国便高等较言出版计 3.朱顶红(Amaryllis vittata),干柱头，具三 裂瓣，表面覆盖短的乳突 Biology of plant reproduction

Biology of plant reproduction 7 3.朱顶红(Amaryllis vittata)，干柱头，具三 裂瓣，表面覆盖短的乳突

被子墙物有性生殖图说、声数的出店过 4.烟草，湿柱头 B A.成熟时在指状的乳突(Sp)间 Biology of plant reproduction 充满分泌物；B.柱头成二裂瓣状

Biology of plant reproduction 8 4.烟草，湿柱头 A.成熟时在指状的乳突（Sp）间 充满分泌物;B.柱头成二裂瓣状

表皮 引导组织 皮层 维管束 触子植物消性生猫阳膜高移前有由能社 1.百合，开放型花柱，①花柱横切面，中央为花柱道，在通道周 围是一层内表皮，特化为引导组织(transmitting tissue), 细胞为腺质。花柱的外表皮覆盖有角质层，里面由簿壁组织构 成的皮层中分布有三束维管束 Biology of plant reproduction 9

Biology of plant reproduction 9 1.百合, 开放型花柱，①花柱横切面,中央为花柱道，在通道周 围是一层内表皮，特化为引导组织（transmitting tissue）， 细胞为腺质。花柱的外表皮覆盖有角质层，里面由簿壁组织构 成的皮层中分布有三束维管束

壁内突 过并框能有性生理围以高裤数育由版社 ②用塑料包埋的半簿切片，通道细胞在高倍放大下可分辨 细胞向通道一面具内突的壁 Biology of plant reproduction 10

Biology of plant reproduction 10 ②用塑料包埋的半簿切片，通道细胞在高倍放大下可分辨 细胞向通道一面具内突的壁