Australian Centre for Plant Functional Genomics (ACPFG), University of Adelaide, PMB1, Glen Osmond, SA5064, Australia.
Biotechnol Adv. 2011 May-Jun;29(3):300-11. doi: 10.1016/j.biotechadv.2011.01.003. Epub 2011 Jan 15.
Polyamines (PAs) are ubiquitous biogenic amines that have been implicated in diverse cellular functions in widely distributed organisms. In plants, mutant and transgenic plants with altered activity pointed to their involvement with different abiotic and biotic stresses. Furthermore, microarray, transcriptomic and proteomic approaches have elucidated key functions of different PAs in signaling networks in plants subjected to abiotic and biotic stresses, however the exact molecular mechanism remains enigmatic. Here, we argue that PAs should not be taken only as a protective molecule but rather like a double-faced molecule that likely serves as a major area for further research efforts. This review summarizes recent advances in plant polyamine research ranging from transgenic and mutant characterization to potential mechanisms of action during environmental stresses and diseases.
多胺（PAs）是普遍存在的生物胺，它们在分布广泛的生物体中参与多种细胞功能。在植物中，改变活性的突变体和转基因植物表明它们与不同的非生物和生物胁迫有关。此外，微阵列、转录组学和蛋白质组学方法阐明了不同 PAs 在植物受到非生物和生物胁迫时信号网络中的关键功能，然而确切的分子机制仍然是个谜。在这里，我们认为 PAs 不应该仅仅被视为一种保护分子，而应该像一种双面分子，它可能是进一步研究的主要领域。本综述总结了植物多胺研究的最新进展，从转基因和突变体的特征到环境胁迫和疾病过程中的潜在作用机制。
