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The immune NIK1 RPL10 LIMYB signaling module regulates photosynthesis and translation under biotic and abiotic stresses

ABSTRACT: Photosynthesis and translation are targets of metabolic control and development in plants, yet how stress signals coordinately regulate these opposing energy-producing and consuming processes remains enigmatic. Here, we described a growth control circuit that ties the photosynthetic function to translational control in response to biotic and abiotic signals. We showed first that the downstream component of the NIK1/RPL10 antiviral signaling module, LIMYB, which represses translation-related genes and translation, also suppresses photosynthesis-related genes and photosynthesis. LIMYB repressing activity was the primary determinant for the decrease in the photosynthetic function in the LIMYB-overexpressing lines, which was linked to the NIK1 antiviral signaling and stunted growth. NIK1 activation by viral or bacterial PAMPs, or expressing a constitutively activated NIK1 mutant, T474D, repressed the photosynthesis-related genes and photosynthesis in control lines but not in lymyb.

INSTRUMENT(S): nanoACQUITY UPLC

ORGANISM(S): Arabidopsis Thaliana (ncbitaxon:3702)

SUBMITTER: Elizabeth Pacheco Batista Fontes

PROVIDER: MSV000097120 | MassIVE | Fri Feb 14 10:27:00 GMT 2025

SECONDARY ACCESSION(S): PXD060833

REPOSITORIES: MassIVE

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