Jasmonate signaling controls negative and positive effectors of salt stress tolerance in rice

The JA deficient mutant (aoc) showed weaker symptoms than WT when both are exposed to salt. JAs signaling in WT, appeared then to impair salt tolerance and we were interested, through this transcriptomic approach, to highlight the JA-dependent component of the salt stress response that could explain the differential phenotype We report, for root and 2nd leaf, the compared transcriptomes of WT and aoc, before and at 3 different times (1 h, 6 h and 72 h) after salt exposure. The study reveals some key JA-regulated negative and positive effectors of salt stress tolerance in rice WT and aoc seedlings were grown in hydroponic system for 11 days before being exposed to 100 mM NaCl solution. Samples were then harvested from root and 2nd leaf at two early (1 h and 6 h) and one late time point (72 h) to compare the transcriptionnal response of the two genotypes.