Dynamics of Actin Filaments Play an Important Role in Root Hair Growth under Low Potassium Stress in Arabidopsis thaliana.

ABSTRACT: Potassium (K) is an essential nutrient for the growth and development of plants. Root hairs are the main parts of plants that absorb K⁺. The regulation of plant root hair growth in response to a wide range of environmental stresses is crucially associated with the dynamics of actin filaments, and the thick actin bundles at the apical and sub-apical regions are essential for terminating the rapid elongation of root hair cells. However, the dynamics and roles of actin filaments in root hair growth in plants' response to low K⁺ stress are not fully understood. Here, we revealed that root hairs grow faster and longer under low K⁺ stress than the control conditions. Compared to control conditions, the actin filaments in the sub-apex of fast-growing wild-type roo

SUBMITTER: Li M 

PROVIDER: S-EPMC11354352 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature