Evolution of the jasmonate ligands and their biosynthetic pathways.
New Phytol
; 238(5): 2236-2246, 2023 06.
Article
in En
| MEDLINE
| ID: mdl-36942932
ABSTRACT
Different plant species employ different jasmonates to activate a conserved signalling pathway in land plants, where (+)-7-iso-JA-Ile (JA-Ile) is the ligand for the COI1/JAZ receptor in angiosperms and dn-cis-OPDA, dn-iso-OPDA and Δ4 -dn-iso-OPDA act as ligands in Marchantia polymorpha. In addition, some jasmonates play a COI1-independent role. To understand the distribution of bioactive jasmonates in the green lineage and how their biosynthetic pathways evolved, we performed phylogenetic analyses and systematic jasmonates profiling in representative species from different lineages. We found that both OPDA and dn-OPDA are ubiquitous in all tested land plants and present also in charophyte algae, underscoring their importance as ancestral signalling molecules. By contrast, JA-Ile biosynthesis emerged within lycophytes coincident with the evolutionary appearance of JAR1 function. We identified that the OPR3-independent JA biosynthesis pathway is ancient and predates the evolutionary appearance of the OPR3-dependent pathway. Moreover, we identified a negative correlation between dn-iso-OPDA and JA-Ile in land plants, which supports that in bryophytes and lycophytes dn-iso-OPDA represents the analogous hormone to JA-Ile in other vascular plants.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Biosynthetic Pathways
/
Oxylipins
Language:
En
Journal:
New Phytol
Journal subject:
BOTANICA
Year:
2023
Document type:
Article
Affiliation country: