Thermospermine signaling in vascular development and stress adaptation: from translational regulation to climate-resilient crops.
Thermospermine (tSpm) is an asymmetric structural isomer of spermine found to accumulate in vascular plants and certain thermophilic bacteria. Since identification of ACAULIS5 (ACL5) as the enzyme responsible for tSpm biosynthesis in Arabidopsis thaliana, tSpm has emerged as a critical post-transcriptional regulator of...