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刺槐花粉萌发和花粉管伸长生长过程中柱头与花柱内钙离子的分布特征

孙鹏 戴丽 徐兆翮 孙非 袁存权 胡瑞阳 孙宇涵 李云

孙鹏, 戴丽, 徐兆翮, 孙非, 袁存权, 胡瑞阳, 孙宇涵, 李云. 刺槐花粉萌发和花粉管伸长生长过程中柱头与花柱内钙离子的分布特征[J]. 北京林业大学学报, 2015, 37(11): 59-68. doi: 10.13332/j.1000-1522.20140394
引用本文: 孙鹏, 戴丽, 徐兆翮, 孙非, 袁存权, 胡瑞阳, 孙宇涵, 李云. 刺槐花粉萌发和花粉管伸长生长过程中柱头与花柱内钙离子的分布特征[J]. 北京林业大学学报, 2015, 37(11): 59-68. doi: 10.13332/j.1000-1522.20140394
SUN Peng, DAI Li, XU Zhao-he, SUN Fei, YUAN Cun-quan, HU Rui-yang, SUN Yu-han, LI Yun. Distribution of Ca2+ in the stigma and style of Robinia pseudoacacia during pollen germination and pollen tube elongation.[J]. Journal of Beijing Forestry University, 2015, 37(11): 59-68. doi: 10.13332/j.1000-1522.20140394
Citation: SUN Peng, DAI Li, XU Zhao-he, SUN Fei, YUAN Cun-quan, HU Rui-yang, SUN Yu-han, LI Yun. Distribution of Ca2+ in the stigma and style of Robinia pseudoacacia during pollen germination and pollen tube elongation.[J]. Journal of Beijing Forestry University, 2015, 37(11): 59-68. doi: 10.13332/j.1000-1522.20140394

刺槐花粉萌发和花粉管伸长生长过程中柱头与花柱内钙离子的分布特征

doi: 10.13332/j.1000-1522.20140394
基金项目: 

林业公益性行业科研专项(20104013)、国家自然科学基金项目(31170629)、“十二五”国家科技支撑计划项目(2012BAD01B0601)、教育部创新团队发展计划项目(IRT13047)。

详细信息
    作者简介:

    孙鹏,博士。主要研究方向:林木育种。Email: sunpeng1017@163.com 地址:450003河南省郑州市金水区纬五路3号中国林业科学研究院经济林研究开发中心。
    责任作者: 李云,教授,博士生导师。主要研究方向:林木育种。Email: yunli63@163.com 地址:100083北京市海淀区清华东路35号北京林业大学118信箱。

    孙鹏,博士。主要研究方向:林木育种。Email: sunpeng1017@163.com 地址:450003河南省郑州市金水区纬五路3号中国林业科学研究院经济林研究开发中心。
    责任作者: 李云,教授,博士生导师。主要研究方向:林木育种。Email: yunli63@163.com 地址:100083北京市海淀区清华东路35号北京林业大学118信箱。

Distribution of Ca2+ in the stigma and style of Robinia pseudoacacia during pollen germination and pollen tube elongation.

  • 摘要: 以去雄后人工授粉的刺槐花为试验材料,并以去雄后不授粉的花为对照,利用焦锑酸钙沉淀法分析刺槐柱头和花柱内钙离子分布对花粉萌发和花粉管生长的影响。结果发现:花粉在萌发前,其萌发孔聚集了大量的钙沉淀。授粉作用会很快促使柱头表面泡状分泌物和胞外基质钙含量增加。随着大量花粉萌发完成,柱头泡状分泌物内的钙含量开始下降,但是柱头胞外基质的钙含量下降不明显,这表明柱头泡状分泌物的钙离子对花粉萌发可能有促进作用。刺槐的花柱含有一个中空花柱道,中空花柱道周围有一层通道细胞,不论授粉与否,通道细胞液泡和细胞壁上都有大量钙离子,这些钙离子对花粉管的生长可能有诱导作用。刺槐花柱内的钙离子梯度现象不明显。本研究结果有利于揭示刺槐乃至其他豆科植物柱头和花柱内钙离子分布对花粉萌发和花粉管生长的影响。

     

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出版历程
  • 收稿日期:  2014-10-28
  • 刊出日期:  2015-11-30

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