Another JA/COI1-independent role of OPDA detected in tomato embryo development |
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| Authors: | Claus Wasternack Stephan Goetz Anja Hellwege Susanne Forner Miroslav Strnad Bettina Hause |
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| Affiliation: | 1.Department of Molecular Signal Processing; Leibniz Institute of Plant Biochemistry; Weinberg; Halle (Saale), Germany;2.Department of Cell and Metabolic Biology; Leibniz Institute of Plant Biochemistry; Weinberg; Halle (Saale), Germany;3.Centre of the Region Haná for Biotechnological and Agricultural Research; Palacký University; Olomouc, Czech Republic |
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| Abstract: | Jasmonates (JAs) are ubiquitously occurring signaling compounds in plants formed in response to biotic and abiotic stress as well as in development. (+)-7-iso-jasmonoyl isoleucine, the bioactive JA, is involved in most JA-dependent processes mediated by the F-box protein COI1 in a proteasome-dependent manner. However, there is an increasing number of examples, where the precursor of JA biosynthesis, cis-(+)-12-oxophytodienoic acid (OPDA) is active in a JA/COI1-independent manner. Here, we discuss those OPDA-dependent processes, thereby giving emphasis on tomato embryo development. Recent data on seed coat-generated OPDA and its role in embryo development is discussed based on biochemical and genetic evidences. |
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| Keywords: | jasmonates COI1-independent gene expression COI1/JAI1 12-oxophytodienoic acid (OPDA) tomato embryo development |
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