Mur Luis A J, Carver Tim L W, Prats Elena
University of Wales Aberystwyth, Institute of Biological Sciences, Aberystwyth, Ceredigion SY23 2DA, UK.
J Exp Bot. 2006;57(3):489-505. doi: 10.1093/jxb/erj052. Epub 2005 Dec 23.
Nitric oxide has attracted considerable interest from plant pathologists due its established role in regulating mammalian anti-microbial defences, particularly via programmed cell death (PCD). Although NO plays a major role in plant PCD elicited in response to certain types of pathogenic challenge, the race-specific hypersensitive response (HR), it is now evident that NO also acts in the regulation of non-specific, papilla-based resistance to penetration by plant cells that survive attack and, possibly, in systemic acquired resistance. Equally, the potential roles of NO signalling/scavenging within the pathogen are being recognized. This review will consider key defensive roles played by NO in living cells during plant-pathogen interactions, as well as in those undergoing PCD.
一氧化氮已引起植物病理学家的极大兴趣，因为它在调节哺乳动物抗菌防御中发挥着既定作用，特别是通过程序性细胞死亡（PCD）。尽管一氧化氮在植物对某些类型致病挑战（即种属特异性过敏反应（HR））引发的程序性细胞死亡中起主要作用，但现在很明显，一氧化氮在调节植物细胞对穿透的非特异性、基于乳突的抗性中也发挥作用，这些植物细胞在受到攻击后存活下来，并且可能在系统获得性抗性中发挥作用。同样，一氧化氮信号传导/清除在病原体中的潜在作用也正在得到认可。本综述将探讨一氧化氮在植物-病原体相互作用过程中活细胞以及正在经历程序性细胞死亡的细胞中所起的关键防御作用。
