Finding new elicitors that induce resistance in rice to the white-backed planthopper Sogatella furcifera
摘要:
Herein we report a new way to identify chemical elicitors that induce resistance in rice to herbivores. Using this method, by quantifying the induction of chemicals for GUS activity in a specific screening system that we established previously, 5 candidate elicitors were selected from the 29 designed and synthesized phenoxyalkanoic acid derivatives. Bioassays confirmed that these candidate elicitors could induce plant defense and then repel feeding of white-backed planthopper Sogatella furcifera. (C) 2015 Elsevier Ltd. All rights reserved.
The title compounds (3) have been prepared and their chemical properties studied. With iodine they give aryloxymethyl aryloxyacetates (4) through the intermediacy of aryloxyacetyl hypoiodites and α-iodoanisoles. The former are unstable but have been trapped with pyridine to give N-iodopyridinium aryloxyacetates, whereas the latter are stable and react independently with compounds (3) to afford the