Another JA/COI1-independent role of OPDA detected in tomato embryo development

• Published in: Plant signaling & behavior Vol. 7; no. 10; pp. 1349 - 1353
• Main Authors: Wasternack, Claus, Goetz, Stephan, Hellwege, Anja, Forner, Susanne, Strnad, Miroslav, Hause, Bettina
• Format: Journal Article
• Language: English
• Published: United States Taylor & Francis 01.10.2012; Landes Bioscience
• Subjects: 12-oxophytodienoic acid (OPDA); Addendum; Binding; Biology; Bioscience; Calcium; Cancer; Cell; COI1-independent gene expression; COI1/JAI1; Cycle; Cyclopentanes - metabolism; Fatty Acids, Unsaturated - metabolism; Gene Expression Regulation, Plant; Isoleucine - analogs & derivatives; Isoleucine - metabolism; jasmonates; Landes; Lycopersicon esculentum - embryology; Lycopersicon esculentum - genetics; Lycopersicon esculentum - metabolism; Models, Biological; Mutation - genetics; Organogenesis; Oxylipins - metabolism; Plant Proteins - metabolism; Proteins; Seeds - embryology; Seeds - metabolism; Signal Transduction; tomato embryo development
• ISSN: 1559-2316; 1559-2324; 1559-2324
• DOI: 10.4161/psb.21551

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.