Cell Biology and Plant Biochemistry, Biochemie-Zentrum Regensburg, University of Regensburg, 93053 Regensburg, Germany.
Cell Biology and Plant Biochemistry, Biochemie-Zentrum Regensburg, University of Regensburg, 93053 Regensburg, Germany.
Cell. 2015 May 7;161(4):708-9. doi: 10.1016/j.cell.2015.04.032.
Fertilization of both egg and central cell is a major distinguishing feature of flowering plants. Now, Maruyama et al. report a third cell fusion event between the persistent synergid and the fertilized central cell shortly after double fertilization in Arabidopsis. This causes rapid dilution of pollen tube attractant(s), preventing polytubey.
精卵和中央细胞的受精是开花植物的主要特征。现在，Maruyama 等人在拟南芥中报告了双受精后不久，持久的助细胞与已受精的中央细胞之间的第三次细胞融合事件。这导致花粉管引诱物迅速稀释，防止多管化。
