作者:Justin Maresh、Jin Zhang、Yih-Ling Tzeng、Nora A. Goodman、David G. Lynn                                    
                                    
                                        DOI:10.1016/j.bmcl.2007.04.018
                                    
                                    
                                        日期:2007.6
                                    
                                    VirA-VirG two-component system regulates the vir (virulence) operon in response to specific host factors (xenognosins) in the plant pathogen Agrobacterium tumefaciens. Using whole cell assays, stable inhibitors inspired by the labile natural benzoxazinone inhibitor HDMBOA are developed. It is found that aromatic aldehydes represent a minimal structural unit for activity. In particular, 3-hydroxy-4,6-dimethoxy-3H-isobenzofuran-1-one (HDI) was found to have the highest activity, making it the most potent developed inhibitor of virulence gene expression in Agrobacterium. (c) 2007 Elsevier Ltd. All rights reserved.