节点文献
肉苁蓉双受精作用及其胚与胚乳早期发育的细胞学观察
Cytological observe on the Double Fertilization and Primarily Development of Embryo and Endosperm in Cistanche deserticola Ma
【Author】 MA Xue-Ping1, 2 MA Hong-Ai1 GUO SHeng-Hu1 LI Miao1 SONG Yu-Xia1 (1.Ningxia Agricultural Biotechnological Key Laboratory, Yincuan, Ningxia 750002; 2. Ningxia University of life science, Yinchuan, Ningxia 75002)
【机构】 宁夏农业生物技术重点实验室； 宁夏大学生命科学学院；
【摘要】 采用常规石蜡切片法对肉苁蓉(Cistanche deserticola Y.C.Ma)双受精过程及胚和胚乳的早期发育进行了观察。结果表明:1.肉苁蓉双受精前一个助细胞退化,另一助细胞宿存;极核融合为次生核,也有三核融合现象,细胞型胚乳。2.双受精作用属于有丝分裂前配子体融合类型。胚胎发育类型为柳叶菜型。
【Abstract】 Observations of the processes of the Double fertilization and the early development of Embryo and endosperm of Cistanche deserticola Y.C. Ma by means of paraffin wax method are presented in this paper. The main results are as follows: 1. A synergid degeneration before fertilization, another synergid persistent; polar nucleus fusion became secondary nucleus, and three nucleus fusion became primary endosperm nucleus,the endosperm genesis is of cellular type. Fertilization type was gametophyte fusion before karyokinetic division. Development of embryogene is the Onagrad type.
【Key words】 Embryology； Cistanche deserticola Ma； Double fertilization； Embryo； Endosperm；
- 【会议录名称】 第九届全国植物结构与生殖生物学学术研讨会论文摘要集
- 【会议名称】第九届全国植物结构与生殖生物学学术研讨会
- 【会议时间】2010-05-15
- 【会议地点】中国陕西西安
- 【分类号】S567.239
- 【主办单位】中国植物学会植物结构与生殖生物学专业委员会