Leaf metabolic signatures induced by real and simulated herbivory in black mustard (Brassica nigra).

ABSTRACT:

Introduction

The oxylipin methyl jasmonate (MeJA) is a plant hormone active in response signalling and defence against herbivores. Although MeJA is applied experimentally to mimic herbivory and induce plant defences, its downstream effects on the plant metabolome are largely uncharacterized, especially in the context of primary growth and tissue-specificity of the response.

Objectives

We investigated the effects of MeJA-simulated and real caterpillar herbivory on the foliar metabolome of the wild plant Brassica nigra and monitored the herbivore-induced responses in relation to leaf ontogeny.

Methods

As single or multiple herbivory treatments, MeJA- and mock-sprayed plants were consecutively exposed to caterpillars or left untreated. Gas chromatography (GC) and liquid

SUBMITTER: Papazian S 

PROVIDER: S-EPMC6765471 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature