DDX6-like RNA helicases compromise salt-stress tolerance by facilitating mRNA decapping activity in Arabidopsis

RNA helicases are a large family of ATPases that participate in RNA structure remodeling and ribonucleoprotein rearrangement to regulate plant growth, development, and responses to environmental stress. Here, we observed that the expression of Arabidopsis (Arabidopsis thaliana) DDX6-like RNA helicase genes RH6, RH8, and RH12 was down-regulated by salt stress. Loss-of-function mutants showed enhanced salt-stress tolerance, manifested as precocious seed germination, accelerated growth, less oxidat