Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tian'jin 300071, China.
College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China.
Plant Sci. 2023 Oct;335:111829. doi: 10.1016/j.plantsci.2023.111829. Epub 2023 Aug 11.
Ovules are precursors of seeds and contain sporophytic integuments and gametophytic embryo sac. In Arabidopsis, embryo sac development requires highly synchronized morphogenesis of integument such that defects in integument growth often accompanies with a block in megagametogenesis, indicating that integument instructs the development of female gametophytes. In this mini review, we discuss signaling pathways through which integument cells mediate embryo sac development. We also propose ways to identify key signaling factors for the communication between integument and developing female gametophyte.
胚珠是种子的前体，包含孢子体的种皮和配子体的胚囊。在拟南芥中，胚囊的发育需要种皮高度同步的形态发生，因此种皮生长的缺陷常常伴随着雌配子体发育的阻滞，这表明种皮指导雌配子体的发育。在这篇综述中，我们讨论了种皮细胞通过哪些信号通路来介导胚囊发育。我们还提出了一些方法来鉴定种皮和发育中的雌配子体之间通讯的关键信号因子。
