Expression and protein localization analyses of Arabidopsis GLABRA3 (GL3) in tomato (Solanum lycopersicum) root epidermis.

ABSTRACT: The arrangement of root hair and non-hair cells in the root epidermis provides a useful model for understanding the cell fate determination system in plants. A network of related transcription factors, including GLABRA3 (GL3), influences the patterning of cell types in Arabidopsis. GL3 is expressed primarily in root hair cells and encodes a bHLH transcription factor, which inhibits root hair differentiation in Arabidopsis root epidermis. By transforming the GL3 promoter::GFP into tomato, we demonstrated that the Arabidopsis GL3 promoter can function in tomato root epidermis. GFP fluorescence was observed in almost all root epidermal cells in the GL3::GFP transgenic tomato plants, indicating that all root epidermal cells of tomato possess root hair cell identity similar to that of Arabidops

SUBMITTER: Tominaga-Wada R 

PROVIDER: S-EPMC6543757 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature