园艺学报 ›› 2008, Vol. 35 ›› Issue (7): 995-1002.

• 蔬菜 • 上一篇    下一篇


申家恒1* ;申 业2;丁常宏1;董雪云1;陆俊萍1;杨 虹1   

  1. 1哈尔滨师范大学生命与环境科学学院生物系,哈尔滨150080;2中国农业大学生物学院,北京100094)
  • 收稿日期:2008-01-06 修回日期:2008-05-19 出版日期:2008-07-25 发布日期:2008-07-25
  • 通讯作者: 申家恒

Fertilization in Capsicum annuum L. and its Time Course

SHEN Jia-heng1*,SHEN Ye2,DING Chang-hong1,DONG Xue-yun1, LU Jun-ping1, and Yang Hong1

  1. 1Department of Biology, College of Life and Environment Science, Harbin Normal University, Harbin 150080, China;2College of Biology, China Agricultural University, Beijing100094,China)
  • Received:2008-01-06 Revised:2008-05-19 Online:2008-07-25 Published:2008-07-25
  • Contact: SHEN Jia-heng


运用常规石蜡制片技术与光学显微镜技术研究了辣椒(Capsicum annuum L.)受精过程及其经历的时间。结果表明:辣椒为自花授粉植物;成熟雄配子体为二细胞型花粉,生殖细胞在花粉管内分裂产生二个精子;花粉管破坏一个助细胞并释放精子,二精子同时移向卵细胞与次生核,精卵融合速度较慢,精子和次生核融合较快;辣椒为细胞型胚乳。自花授粉后2–4 h在柱头上大量花粉萌发;授粉后8–12 h左右花粉管长过花柱进入子房腔;授粉后12–20 h左右花粉管在助细胞里释放精子;授粉后14–30 h左右雌雄性细胞融合;授粉后18–40 h初生胚乳核分裂,初生胚乳核休眠期约为4–6 h;授粉后4 d左右合子分裂,合子休眠期为3 d左右。

关键词: 辣椒(Capsicum annuum L.), 受精过程, 受精间隔期


Embryological characters during fertilization and the time course of the fertilization process in Capsicum annuum L. were described by means of routine paraffin-embedded sectioning technique and observed by microscopy. The results are as follows: The mature male gametophyte is 2-celled pollen grain, and the generative cell divides into two sperms in the pollen tube. Pollen tube destroys one synergid and releases two sperms which move to egg and secondary nucleus at the same time. Fusion of egg-sperm is slower than that of secondary nucleus-sperm. The development of the endosperm is of Cellular type. Pollen grains germinate on the stigma 2–4 h after pollination. 8–12 h after pollination, a pollen tube gets into the ovary locule. 12–20 h after pollination, pollen tube releases two sperms into one synergid. Fusion of male and female sexual cells takes place about 14–30 h after pollination. The division of primary endosperm nucleus takes place 18–40 h after pollination,and its dormancy stage lasts for 4–6 h. About 4 days after pollination, zygote begins dividing and its dormancy stage lasts for 3 days.

Key words: Capsicum annuum L., fertilization, time course of fertilization process