Burow Meike, Halkier Barbara Ann
DynaMo Center, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark.
DynaMo Center, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark.
Curr Opin Plant Biol. 2017 Aug;38:142-147. doi: 10.1016/j.pbi.2017.04.009. Epub 2017 May 30.
The sessile nature of plants has caused plants to develop means to defend themselves against attacking organisms. Multiple strategies range from physical barriers to chemical warfare including pre-formed anticipins as well as phytoalexins produced only upon attack. While phytoalexins require rapid induction, constitutive defenses can impose ecological costs if they deter pollinators or attract specialized herbivores. In the model Arabidopsis thaliana, the well-characterized glucosinolate anticipins are categorized into different classes, aliphatic and indole glucosinolates, depending on their amino acid precursor. Using glucosinolates in Arabidopsis as case study, we will discuss how plants orchestrate synthesis, storage and activation of pre-formed defense compounds spatially and temporally.
植物固着生长的特性使其进化出抵御攻击生物的防御手段。多种防御策略涵盖从物理屏障到化学战，包括预先形成的防御素以及仅在遭受攻击时产生的植保素。虽然植保素需要快速诱导，但组成型防御如果阻碍传粉者或吸引特定食草动物，则会带来生态成本。在模式植物拟南芥中，特征明确的硫代葡萄糖苷防御素根据其氨基酸前体分为不同类别，即脂肪族硫代葡萄糖苷和吲哚硫代葡萄糖苷。以拟南芥中的硫代葡萄糖苷为案例研究，我们将讨论植物如何在空间和时间上协调预先形成的防御化合物的合成、储存和激活。
