Overexpression of REMORIN1.2 affects salt signaling and tolerance in Arabidopsis.

Overexpressing REMORIN1.2 in Arabidopsis thaliana inhibits early salt signaling and late cell morphological responses, correlating with increased salt sensitivity.

• Why it matters: Salinity disrupts plant growth and immunity, but the molecular players governing early salt-triggered cellular events remain largely unclear.
• What they did: The study tracked temporal regulation of REMORIN family genes after salt perception and found salt rapidly reorganizes REMORIN1.2 into plasma membrane nanodomains that colocalize with FORMIN 6. It then tested how REMORIN1.2 overexpression affects early signaling and later cell morphology under salt.
• The result: REMORIN1.2 overexpression links FORMIN-containing REMORIN nanodomains to altered salt responses, connecting early signaling to cell architecture changes and reduced root resilience.

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