作者:Tetsu Tsurushima、Sharon L. Midland、Chun-min Zeng、Cheng Ji、James J. Sims、Noel T. Keen
DOI:10.1016/s0031-9422(96)00530-4
日期:1996.12
The syringolides, specified by avirulence gene D from Pseudomonas syringae, elicit a disease defense reaction only in soybean cultivars carrying the Rpg4 disease resistance gene. In order to identify structural features important for elicitor activity and construct highly labelled elicitor-active probes, several syringolide esters and ketals were synthesized. Alteration of the C-3 hemiketal group of syringolide 1 abolished elicitor activity, but ester derivatives based on the C-4' hydroxy group all retained activity. [I-125]4'-(2-iodo-3,4,5-trimethoxyphenylacetyl) syringolide 1 was prepared for receptor studies. Copyright (C) 1996 Elsevier Science Ltd