| 菜薹授粉受精及胚胎发育过程的观察 |
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| 引用本文： | 张书玲,刘建凤,张成合.菜薹授粉受精及胚胎发育过程的观察[J].安徽农业科学,2012,40(1):81-82,86. |
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| 作者姓名： | 张书玲 刘建凤 张成合 |
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| 作者单位： | 河北大学生命科学学院,河北保定071002;河北农业大学园艺学院,河北保定071001;河北大学生命科学学院,河北保定,071002;河北农业大学园艺学院,河北保定,071001 |
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| 摘 要： | 目的]研究菜薹的授粉受精及胚胎发育过程,为菜薹育种学及组织培养工作提供参考。方法]以青露菜薹(2n=2x=20)为试材,对其授粉受精及胚胎发育过程进行系统观察研究。结果]菜薹花粉活力强,萌发率高,花粉管在花柱和子房中生长正常。双受精后合子伸长经不均等分裂形成二细胞原胚,经继续有丝分裂形成T原形胚,球形原胚,经过心形期、鱼雷形期、手杖形期、马蹄形期,最后发育成熟。结论]菜薹授粉受精过程正常,胚胎发育过程与芸苔属其他蔬菜原胚发育相一致,属柳叶菜型。
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| 关 键 词： | 菜薹 授粉受精 胚胎发育 |
Study on the Process of Pollination, Fertilization and Embryo Development in False Pakchoi |
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| Institution: | ZHANG Shu-ling et al(College of Life Sciences,Hebei University,Baoding,Hebei 071002) |
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| Abstract: | Objective] The study aimed to study the process of pollination,fertilization and embryo development in False Pakchoi and provide reference for breeding and tissue culture of False Pakchoi.Method] With False Pakchoi(2n=2x=20) as material,the process of pollination,fertilization and embryo development were studied systematically.Result] The pollen vitality of False Pakchoi was strong;moreover,pollen tube grew normally in style and ovary.After double fertilization,zygote by inequality division formed proembryo including two cells.The proembryo by mitosis formed T type,ball type proembryo,and then developed mature finally after heart type,torpedo type,stick type and horseshoe type.Conclusion] The process of pollination,fertilization in False Pakchoi was normal.The embryo development was consistent with other Brassica vegetables,and belongs to onagrad type. |
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| Keywords: | Flowermg chinese cabbage Pollination and fertilization Embryo development |
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