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作 者 ：范六民 杨弘远

期 刊 ：西北植物学报 1997年 2期

关键词：烟草；载体；生殖核分裂；钙离子；

Keywords:Nicotiana tabacum L., calcium ionophore A23187, pollen tube, generativenucleus division,

摘 要 ：用Ｃａ＾２＋载体Ａ２３１８７研究了高钙水平对烟草离体花粉管内生殖核分裂的影响。结果表明，Ａ２３１８７抑制花粉管生长，影响其正常形态，调节生殖核分裂，较高浓度Ａ２３１８７可阻断生殖核分裂，而较代浓度的效应因处理时间而异；萌发６ｈ处理显著抑制生殖核分裂。

Abstract:The effects of high calcium on Tabacco generative nucleus (GN) division were studied using calcium ionophore A23187. Mature pollen grains were artificially germinated ina medium containing 10-3 mol/L calcium ions. A23187 of various concentrations wasadded

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