Journal
SCIENTIFIC REPORTS
Volume 11, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41598-021-93067-1
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Funding
- JSPS, Japan [17H06407, 18KK0162, 20H00402, 18H02101, 19H05283, 19K05378, 20H04791]
- JSPS A3 Foresight Program
- JSPS Core-to-Core Program Asian Chemical Biology Initiative
- Grants-in-Aid for Scientific Research [20H00402, 20H04791, 19H05283, 19K05378, 18H02101, 17H06407, 18KK0162] Funding Source: KAKEN
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This study reveals that the COI1-JAZ co-receptor in tomato plants relies on an extended JAZ degron sequence for ligand perception, instead of the canonical JAZ degron.
(+)-7-iso-Jasmonoyl-l-isoleucine (JA-Ile) is a lipid-derived phytohormone implicated in plant development, reproduction, and defense in response to pathogens and herbivorous insects. All these effects are instigated by the perception of JA-Ile by the COI1-JAZ co-receptor in the plant body, which in Arabidopsis thaliana is profoundly influenced by the short JAZ degron sequence (V/L)P(Q/I)AR(R/K) of the JAZ protein. Here, we report that SlJAZ-SlCOI1, the COI1-JAZ co-receptor found in the tomato plant, relies on the extended JAZ degron sequence (V/L)P(Q/I)AR(R/K)XSLX instead of the canonical JAZ degron. This finding illuminates our understanding of the mechanism of ligand perception by JA-Ile in this plant, and will inform both efforts to improve it by genetic modification of the SlCOI1-SlJAZ co-receptor, and the development of the synthetic agonists/antagonists.
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