Berger Frédéric, Hamamura Yuki, Ingouff Mathieu, Higashiyama Tetsuya
Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, 117604, Singapore.
Trends Plant Sci. 2008 Aug;13(8):437-43. doi: 10.1016/j.tplants.2008.05.011. Epub 2008 Jul 21.
In flowering plants, fertilization is unique because it involves two pairs of male and female gametes, a process known as double fertilization. Here, we provide an overview of the field and a detailed review of the outstanding recent advances, including in vivo imaging of double fertilization and the identification of a signaling pathway controlling the release of the male gametes and of a protein involved in gamete membrane fusion. These recent results are stepping stones for further research; our knowledge of double fertilization is expanding as newly discovered molecular pathways are explored and new mutants are characterized. Controlling plant fertilization is essential for seed production, and molecular understanding of double fertilization will provide the tools to improve crops and breeding programs.
在开花植物中，受精过程独具特色，因为它涉及两对雄配子和雌配子，这一过程被称为双受精。在此，我们概述了该领域，并详细回顾了近期的显著进展，包括双受精的体内成像，以及对控制雄配子释放的信号通路和参与配子膜融合的一种蛋白质的鉴定。这些最新成果是进一步研究的垫脚石；随着新发现的分子途径得到探索以及新突变体得到表征，我们对双受精的认识正在不断扩展。控制植物受精对于种子生产至关重要，对双受精的分子理解将为改良作物和育种计划提供工具。
