@article{fdi:010092094,
  title = {{T}ranscriptomic and metabolomic reveal {O}s{COI}2 as the jasmonate-receptor master switch in rice root},
  author = {{C}heaib, {M}. and {N}guyen, {H}. {T}. and {C}ouderc, {M}arie and {S}erret, {J}ulien and {S}oriano, {A}. and {L}armande, {P}ierre and {R}ichter, {C}. and {J}unker, {B}. {H}. and {R}aorane, {M}. {L}. and {P}etitot, {A}nne-{S}ophie and {C}hampion, {A}ntony},
  editor = {},
  language = {{ENG}},
  abstract = {{J}asmonate is an essential phytohormone involved in plant development and stress responses. {I}ts perception occurs through the {CORONATINE} {INSENSITIVE} ({COI}) nuclear receptor allowing to target the {J}asmonate-{ZIM} domain ({JAZ}) repressors for degradation by the 26{S} proteasome. {C}onsequently, repressed transcription factors are released and expression of jasmonate responsive genes is induced. {I}n rice, three {O}s{COI} genes have been identified, {O}s{COI}1a and the closely related {O}s{COI}1b homolog, and {O}s{COI}2. {W}hile the roles of {O}s{COI}1a and {O}s{COI}1b in plant defense and leaf senescence are well-established, the significance of {O}s{COI}2 in plant development and jasmonate signaling has only emerged recently. {T}o unravel the role of {O}s{COI}2 in regulating jasmonate signaling, we examined the transcriptomic and metabolomic responses of jasmonate-treated rice lines mutated in both the {O}s{COI}1a and {O}s{COI}1b genes or {O}s{COI}2. {RNA}-seq data highlight {O}s{COI}2 as the primary driver of the extensive transcriptional reprogramming observed after a jasmonate challenge in rice roots. {A} series of transcription factors exhibiting an {O}s{COI}2-dependent expression were identified, including those involved in root development or stress responses. {O}s{COI}2-dependent expression was also observed for genes involved in specific processes or pathways such as cell-growth and secondary metabolite biosynthesis (phenylpropanoids and diterpene phytoalexins). {A}lthough functional redundancy exists between {O}s{COI}1a/b and {O}s{COI}2 in regulating some genes, oscoi2 plants generally exhibit a weaker response compared to oscoi1ab plants. {M}etabolic data revealed a shift from the primary metabolism to the secondary metabolism primarily governed by {O}s{COI}2. {A}dditionally, differential accumulation of oryzalexins was also observed in oscoi1ab and oscoi2 lines. {T}hese findings underscore the pivotal role of {O}s{COI}2 in jasmonate signaling and suggest its involvement in the control of the growth-defense trade-off in rice.},
  keywords = {},
  booktitle = {},
  journal = {{PL}o{S} {O}ne},
  volume = {19},
  numero = {10},
  pages = {e0311136 [24 p.]},
  ISSN = {1932-6203},
  year = {2024},
  DOI = {10.1371/journal.pone.0311136},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092094},
}