OPDA-Ile a new JA-Ile-independent signal?

0471230 - ÚEB 2017 RIV US eng J - Journal Article
Wasternack, Claus - Hause, B.
OPDA-Ile a new JA-Ile-independent signal?
Plant Signaling & Behavior. Roč. 11, č. 11 (2016), č. článku e1253646. ISSN 1559-2316. E-ISSN 1559-2324
R&D Projects: GA MŠMT(CZ) LO1204; GA ČR GA14-34792S
Institutional support: RVO:61389030
Keywords : allene oxide cyclase * 12-oxo-phytodienoic acid * arabidopsis-thaliana * stress responses * jasmonic acid * cyclopentenones * perception * coronatine * repressors * oxylipins * 12-oxo-phytodienoic acid (OPDA) * JA-Ile perception * jasmonic acid (JA) * jasmonoyl-isoleucine (JA-Ile) * OPDA-Ile-induced gene expression * SCFCOI1-JAZ coreceptor complex
Subject RIV: EB - Genetics ; Molecular Biology

Expression takes place for most of the jasmonic acid (JA)-induced genes in a COI1-dependent manner via perception of its conjugate JA-Ile in the SCFCOI1-JAZ co-receptor complex. There are, however, numerous genes and processes, which are preferentially induced COI1-independently by the precursor of JA, 12-oxophytodienoic acid (OPDA). After recent identification of the Ile-conjugate of OPDA, OPDA-Ile, biological activity of this compound could be unequivocally proven in terms of gene expression. Any interference of OPDA, JA, or JA-Ile in OPDA-Ile-induced gene expression could be excluded by using different genetic background. The data suggest individual signaling properties of OPDA-Ile. Future studies for analysis of an SCFCOI1-JAZ co-receptorindependent route of signaling are proposed.
Permanent Link: http://hdl.handle.net/11104/0268636