Laboratoire des Interactions Plantes Micro-organismes, UMR INRA-CNRS 441/2594, BP 52627, 31326 Castanet-Tolosan Cedex, France.
Curr Opin Microbiol. 2011 Apr;14(2):181-7. doi: 10.1016/j.mib.2010.12.010. Epub 2011 Jan 12.
For two decades, signalling research in the rhizobium-legume symbiosis field has been dominated by oligosaccharide signals (mainly Nod factors and, to a lesser extent, surface polysaccharides made by the microsymbionts) and phytohormones. Recently, plant peptides have emerged as another major class of signalling molecules in the rhizobium-legume symbioses contributing to the control of nodulation, infection and bacteroid differentiation. Here we focus on three examples of symbiotically relevant peptides, namely Enod40, CLE and NCR peptides. The number of genes encoding these peptides, as well as the recent discovery of additional peptide players in the context of symbiosis, suggests that we might be seeing only the tip of the peptide iceberg in the sea of symbiotic regulations.
二十年来，根瘤菌-豆科植物共生领域的信号研究一直由寡糖信号（主要是 Nod 因子，在较小程度上还有微生物共生体产生的表面多糖）和植物激素主导。最近，植物肽已成为根瘤菌-豆科植物共生中另一种主要的信号分子类别，有助于控制结瘤、侵染和类菌体分化。在这里，我们重点关注三个与共生相关的肽，即 Enod40、CLE 和 NCR 肽。编码这些肽的基因数量，以及最近在共生背景下发现的其他肽参与者，表明我们在共生调控的肽海洋中可能只看到了冰山一角。
