Membrane lipids are often viewed as passive building blocks of the endomembrane system. However, mounting evidence suggests that sphingolipids, sterols, and phospholipids are specifically targeted by developmental pathways, notably hormones, in a cell- or tissue-specific manner to regulate plant growth and development. Targeted modifications of lipid homeostasis may act as a way to execute a defined developmental program, for example, by regulating other signaling pathways or participating in cell differentiation. Furthermore, these regulations often feed back on the very signaling pathway that initiates the lipid metabolic changes. Here, we review several recent examples highlighting the intricate feedbacks between membrane lipid homeostasis and plant development. In particular, these examples illustrate how all aspects of membrane lipid metabolic pathways are targeted by these feedback regulations. We propose that the time has come to consider membrane lipids and lipid metabolism as an integral part of the developmental program needed to build a plant.

膜脂质通常被视为内膜系统的被动构建基块。但是，越来越多的证据表明，鞘脂，固醇和磷脂被细胞或组织特异性的发育途径特别是激素所靶向，以调节植物的生长和发育。脂质稳态的靶向修饰可以充当执行定义的发育程序的方式，例如，通过调节其他信号传导途径或参与细胞分化。此外，这些法规经常在引发脂质代谢变化的信号通路上进行反馈。在这里，我们回顾了几个最近的例子，这些例子突出了膜脂质稳态与植物发育之间的复杂反馈。尤其是，这些例子说明了这些反馈法规如何靶向膜脂代谢途径的所有方面。我们建议现在应该考虑将膜脂质和脂质代谢作为构建植物所需的开发程序的组成部分。