Pam Ronald @pcronald.bsky.social · 06/10/2026A synthetic sulfated RaxX derivative comprising 13 residues, highly conserved between RaxX and PSY, induces root growth in Arabidopsis and rice in a manner similar to that triggered by PSY. A Xanthomonas strain lacking raxX is impaired in virulence. 100
Pam Ronald @pcronald.bsky.social · 06/10/2026Bacterial RaxX competes effectively with plant PSY in binding to the PSY receptors, PSYR2 and PSYR3, indicating that RaxX is also perceived by PSYRs in Arabidopsis. 100
Pam Ronald @pcronald.bsky.social · 06/10/2026In Arabidopsis, these receptors represses plant growth and activate stress-response genes when they are not repressed by their peptide hormone ligands.https://www.science.org/doi/10.1126/science.abq5735 100
