Bedoukian   RussellIPM   RussellIPM   Piezoelectric Micro-Sprayer


Home
Animal Taxa
Plant Taxa
Semiochemicals
Floral Compounds
Semiochemical Detail
Semiochemicals & Taxa
Synthesis
Control
Invasive spp.
References

Abstract

Guide

Alphascents
Pherobio
InsectScience
E-Econex
Counterpart-Semiochemicals
Print
Email to a Friend
Kindly Donate for The Pherobase

« Previous AbstractPeripheral and central olfactory tuning in a moth    Next AbstractPrecision Medicine in Neonates: Future Perspectives for the Lung »

Plant Cell Environ


Title:"The plastidial metabolite 2-C-methyl-D-erythritol-2,4-cyclodiphosphate modulates defence responses against aphids"
Author(s):Onkokesung N; Reichelt M; Wright LP; Phillips MA; Gershenzon J; Dicke M;
Address:"Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands. Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany. Department of Biology and Graduate Program in Cellular and Systems Biology, University of Toronto-Mississauga, Mississauga, Ontario, Canada"
Journal Title:Plant Cell Environ
Year:2019
Volume:20190308
Issue:7
Page Number:2309 - 2323
DOI: 10.1111/pce.13538
ISSN/ISBN:1365-3040 (Electronic) 0140-7791 (Print) 0140-7791 (Linking)
Abstract:"Feeding by insect herbivores such as caterpillars and aphids induces plant resistance mechanisms that are mediated by the phytohormones jasmonic acid (JA) and salicylic acid (SA). These phytohormonal pathways often crosstalk. Besides phytohormones, methyl-D-erythriol-2,4-cyclodiphosphate (MEcPP), the penultimate metabolite in the methyl-D-erythritol-4-phosphate pathway, has been speculated to regulate transcription of nuclear genes in response to biotic stressors such as aphids. Here, we show that MEcPP uniquely enhances the SA pathway without attenuating the JA pathway. Arabidopsis mutant plants that accumulate high levels of MEcPP (hds3) are highly resistant to the cabbage aphid (Brevicoryne brassicae), whereas resistance to the large cabbage white caterpillar (Pieris brassicae) remains unaltered. Thus, MEcPP is a distinct signalling molecule that acts beyond phytohormonal crosstalk to induce resistance against the cabbage aphid in Arabidopsis. We dissect the molecular mechanisms of MEcPP mediating plant resistance against the aphid B. brassicae. This shows that MEcPP induces the expression of genes encoding enzymes involved in the biosynthesis of several primary and secondary metabolic pathways contributing to enhanced resistance against this aphid species. A unique ability to regulate multifaceted molecular mechanisms makes MEcPP an attractive target for metabolic engineering in Brassica crop plants to increase resistance to cabbage aphids"
Keywords:Animals Aphids/*drug effects Arabidopsis/genetics/*metabolism Arabidopsis Proteins/genetics/metabolism Brassica Cyclopentanes/metabolism Cytochrome P-450 Enzyme System/metabolism Disease Resistance/genetics/physiology Erythritol/*analogs & derivatives/gen;
Notes:"MedlineOnkokesung, Nawaporn Reichelt, Michael Wright, Louwrance P Phillips, Michael A Gershenzon, Jonathan Dicke, Marcel eng 2019/02/21 Plant Cell Environ. 2019 Jul; 42(7):2309-2323. doi: 10.1111/pce.13538. Epub 2019 Mar 8"

 
Back to top
 
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 17-11-2024