At-Hook Motif Nuclear Localised Protein 18 as a Novel Modulator of Root System Architecture.

ABSTRACT: The At-Hook Motif Nuclear Localized Protein (AHL) gene family encodes embryophyte-specific nuclear proteins with DNA binding activity. They modulate gene expression and affect various developmental processes in plants. We identify AHL18 (At3G60870) as a developmental modulator of root system architecture and growth. AHL18 is involved in regulation of the length of the proliferation domain and number of dividing cells in the root apical meristem and thereby, cell production. Both primary root growth and lateral root development respond according to AHL18 transcription level. The ahl18 knock-out plants show reduced root systems due to a shorter primary root and a lower number of lateral roots. This change results from a higher number of arrested and non-developing lateral root primordia (LRP

SUBMITTER: Sirl M 

PROVIDER: S-EPMC7084884 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature