Induction of the Arabidopsis PHO1;H10 Gene by 12-Oxo-Phytodienoic Acid But Not Jasmonic Acid via a CORONATINE INSENSITIVE1-Dependent Pathway
- 23 April 2008
- journal article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 147 (2) , 696-706
- https://doi.org/10.1104/pp.108.119321
Abstract
Expression of AtPHO1;H10, a member of the Arabidopsis (Arabidopsis thaliana) PHO1 gene family, is strongly induced following numerous abiotic and biotic stresses, including wounding, dehydration, cold, salt, and pathogen attack. AtPHO1;H10 expression by wounding was localized to the cells in the close vicinity of the wound site. AtPHO1;H10 expression was increased by application of the jasmonic acid (JA) precursor 12-oxo-phytodienoic acid (OPDA), but not by JA or coronatine. Surprisingly, induction of AtPHO1;H10 by OPDA was dependent on the presence of CORONATINE INSENSITIVE1 (COI1). The induction of AtPHO1;H10 expression by wounding and dehydration was dependent on COI1 and was comparable in both the wild type and the OPDA reductase 3-deficient (opr3) mutant. In contrast, induction of AtPHO1;H10 expression by exogenous abscisic acid (ABA) was independent of the presence of either OPDA or COI1, but was strongly decreased in the ABA-insensitive mutant abi1-1. The involvement of the ABA pathway in regulating AtPHO1;H10 was distinct between wounding and dehydration, with induction of AtPHO1;H10 by wounding being comparable to wild type in the ABA-deficient mutant aba1-3 and abi1-1, whereas a strong reduction in AtPHO1;H10 expression occurred in aba1-3 and abi1-1 following dehydration. Together, these results reveal that OPDA can modulate gene expression via COI1 in a manner distinct from JA, and independently from ABA. Furthermore, the implication of the ABA pathway in coregulating AtPHO1;H10 expression is dependent on the abiotic stress applied, being weak under wounding but strong upon dehydration.Keywords
This publication has 62 references indexed in Scilit:
- Regulation and Function of Arabidopsis JASMONATE ZIM-Domain Genes in Response to Wounding and HerbivoryPlant Physiology, 2008
- Signaling Pathways Controlling Induced Resistance to Insect Herbivores in ArabidopsisMolecular Plant-Microbe Interactions®, 2007
- The Outcomes of Concentration-Specific Interactions between Salicylate and Jasmonate Signaling Include Synergy, Antagonism, and Oxidative Stress Leading to Cell DeathPlant Physiology, 2005
- Plant defense in the absence of jasmonic acid: The role of cyclopentenonesProceedings of the National Academy of Sciences, 2001
- Octadecanoid-Derived Alteration of Gene Expression and the “Oxylipin Signature” in Stressed Barley Leaves. Implications for Different Signaling PathwaysPlant Physiology, 2000
- Expression of the Arabidopsisabi1–1mutant allele inhibits proteinase inhibitor wound‐induction in tomatoThe Plant Journal, 1998
- Wound Signaling in Tomato Plants1Plant Physiology, 1998
- Expression of a Flax Allene Oxide Synthase cDNA Leads to Increased Endogenous Jasmonic Acid (JA) Levels in Transgenic Potato Plants but Not to a Corresponding Activation of JA-Responding Genes.Plant Cell, 1995
- Signals involved in wound-induced proteinase inhibitor II gene expression in tomato and potato plants.Proceedings of the National Academy of Sciences, 1995
- The isolation of abscisic acid (ABA) deficient mutants by selection of induced revertants in non-germinating gibberellin sensitive lines of Arabidopsis thaliana (L.) heynh.Theoretical and Applied Genetics, 1982