Jordan Brian R
Soil, Plant and Ecological Sciences Division, Lincoln University, PO Box 84, Canterbury, New Zealand. Email:
Funct Plant Biol. 2002 Aug;29(8):909-916. doi: 10.1071/FP02062.
UV-B radiation (UV-B: 280-320 nm) can cause a wide range of responses in plant cells. These responses depend on the perception of the UV-B radiation, signal transduction mechanisms, and modification of gene expression. Studies over the last ten years have revealed a complex molecular response of plant cells to UV-B radiation. A number of signal transduction pathways are established and specific changes in gene activity take place. In addition, other environmental parameters strongly influence the UV-B-induced response. Although molecular studies have advanced our knowledge, our understanding of UV-B-induced cellular changes remains limited compared with other areas of plant photobiology / molecular biology. This review will focus on UV-B-induced signal transduction, gene expression and defence mechanisms. Comparisons will be made with other light-regulated systems to provide an insight into UV-B responses. This review will also attempt to identify present limitations to our understanding of molecular responses of plant cells to UV-B radiation.
UV-B辐射（UV-B：280 - 320纳米）可在植物细胞中引发多种反应。这些反应取决于对UV-B辐射的感知、信号转导机制以及基因表达的改变。过去十年的研究揭示了植物细胞对UV-B辐射的复杂分子反应。建立了许多信号转导途径，基因活性发生了特定变化。此外，其他环境参数也会强烈影响UV-B诱导的反应。尽管分子研究增进了我们的认识，但与植物光生物学/分子生物学的其他领域相比，我们对UV-B诱导的细胞变化的理解仍然有限。本综述将聚焦于UV-B诱导的信号转导、基因表达和防御机制。将与其他光调节系统进行比较，以深入了解UV-B反应。本综述还将试图找出目前我们对植物细胞对UV-B辐射分子反应理解上的局限性。
