Arabidopsis MDIS1 and MDIS2 Are Critical for RSL4‐Mediated Root Hair Size and Duration of ROP Signalling

Key Points

• The aim is to determine the roles of MDIS1 and MDIS2 in root hair elongation and ROP signalling in Arabidopsis.
• Identified receptor-like kinases MDIS1 and MDIS2 in Arabidopsis thaliana.
• Examined the relationship between MDIS1/MDIS2 and transcription factor RSL4.
• Analyzed their effect on root hair size and growth duration.
• MDIS1 and MDIS2 are essential for proper root hair elongation.
• They are direct targets of the transcription factor RSL4.
• These kinases maintain ROP signalling, influencing final root hair size.