Methyl jasmonate is transported to distal leaves via vascular process metabolizing itself into JA-Ile and triggering VOCs emission as defensive metabolites

被引：25

作者：

Tamogami, Shigeru ^{[1
]}

Noge, Koji ^{[1
]}

Abe, Makoto ^{[1
]}

Agrawal, Ganesh Kumar ^{[2
]}

Rakwal, Randeep ^{[2
,3
,4
]}

机构：

[1] Akita Prefectural Univ, Dept Biol Prod, Lab Biol Act Cpds, Akita, Japan

[2] Res Lab Biotechnol & Biochem RLABB, Kathmandu, Nepal

[3] Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki, Japan

[4] Showa Univ, Sch Med, Dept Anat 1, Tokyo, Japan

来源：

PLANT SIGNALING & BEHAVIOR | 2012年 / 7卷 / 11期

基金：

日本学术振兴会;

关键词：

methyl jasmonate; jasmonoyl isoleucine; deuterium labeling; plant signaling; long-distance signaling; VOC;

D O I：

10.4161/psb.21762

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Plants have developed multifaceted defensive systems against adverse environmental factors. One such recognized system is the production of metabolites in plants. Jasmonic acid (JA) and its metabolite methyl jasmonate (MeJA) are known to play key roles in metabolites production. The role of MeJA as a mobile signal has been established in Arabidopsis and Solanaceae plants. However, it remains largely unclear how MeJA-based signaling is organized via its elicited metabolites. Here, we investigated the signaling ability of MeJA by means of vascular transport using Achyranthes bidentata as an experimental plant. Results showed that MeJA was transported and essentially metabolized into its active form JA-Ile in the distal undamaged leaves accompanied by emission of volatile organic compounds. Results presented and discussed therein provide convincing evidence that MeJA acts as a transportable inter-cellular mobile compound in plants self-defense scheme.

引用

页码：1378 / 1381

页数：4