Hydroxylated jasmonates are commonly occurring metabolites of jasmonic acid and contribute to a partial switch‐off in jasmonate signaling
Open Access
- 8 November 2007
- journal article
- Published by Wiley in New Phytologist
- Vol. 177 (1), 114-127
- https://doi.org/10.1111/j.1469-8137.2007.02252.x
Abstract
In potato 12-hydroxyjasmonic acid (12-OH-JA) is a tuber-inducing compound. Here, it is demonstrated that 12-OH-JA, as well as its sulfated and glucosylated derivatives, are constituents of various organs of many plant species. All accumulate differentially and usually to much higher concentrations than jasmonic acid (JA). In wounded tomato leaves, 12-OH-JA and its sulfated, as well as glucosylated, derivative accumulate after JA, and their diminished accumulation in wounded leaves of the JA-deficient mutants spr2 and acx1 and also a JA-deficient 35S::AOCantisense line suggest their JA-dependent formation. To elucidate how signaling properties of JA/JAME (jasmonic acid methyl ester) are affected by hydroxylation and sulfation, germination and root growth were recorded in the presence of the different jasmonates, indicating that 12-OH-JA and 12-hydroxyjasmonic acid sulfate (12-HSO(4)-JA) were not bioactive. Expression analyses for 29 genes showed that expression of wound-inducible genes such as those coding for PROTEINASE INHIBITOR2, POLYPHENOL OXIDASE, THREONINE DEAMINASE or ARGINASE was induced by JAME and less induced or even down-regulated by 12-OH-JA and 12-HSO(4)-JA. Almost all genes coding for enzymes in JA biosynthesis were up-regulated by JAME but down-regulated by 12-OH-JA and 12-HSO(4)-JA. The data suggest that wound-induced metabolic conversion of JA/JAME into 12-OH-JA alters expression pattern of genes including a switch off in JA signaling for a subset of genes.Keywords
This publication has 74 references indexed in Scilit:
- Substrate specificity and products of side‐reactions catalyzed by jasmonate:amino acid synthetase (JAR1)FEBS Letters, 2007
- Wounding Stimulates the Accumulation of Glycerolipids Containing Oxophytodienoic Acid and Dinor-Oxophytodienoic Acid in Arabidopsis LeavesPlant Physiology, 2006
- The Oxylipin Signal Jasmonic Acid Is Activated by an Enzyme That Conjugates It to Isoleucine in Arabidopsis[W]THE PLANT CELL ONLINE, 2004
- PLANT RESPONSES TO INSECT HERBIVORY: The Emerging Molecular AnalysisAnnual Review of Plant Biology, 2002
- Role of sulfation in thyroid hormone metabolismChemico-Biological Interactions, 1994
- Hydroxylated jasmonic acid and related compounds from Botryodiplodia theobromaePhytochemistry, 1991
- Cucurbic acid and its 6,7-stereoisomersPhytochemistry, 1991
- Abscisic Acid Mediates Wound Induction but Not Developmental-Specific Expression of the Proteinase Inhibitor II Gene FamilyTHE PLANT CELL ONLINE, 1991
- Stereoselektive Glycosylierung von Steroidalkoholen mit 2,3,4,6‐Tetra‐O‐privaloyl‐α‐D‐glucopyranosylbromid (Pivalobromglucose) und 2,3,4,6‐Tetra‐O‐(o‐toluoyl)‐α‐D‐glucopyranosylbromidEuropean Journal of Organic Chemistry, 1986
- Occurrence of the plant growth regulator jasmonic acid in plantsJournal of Plant Growth Regulation, 1984