Journal article

Arabidopsis leucine-rich repeat extensin (LRX) proteins modify cell wall composition and influence plant growth

Christian Draeger, Tohnyui Ndinyanka Fabrice, Emilie Gineau, Gregory Mouille, Benjamin M Kuhn, Isabel Moller, Marie-Therese Abdou, Beat Frey, Markus Pauly, Antony Bacic, Christoph Ringli

BMC PLANT BIOLOGY | BMC | Published : 2015

Abstract

BACKGROUND: Leucine-rich repeat extensins (LRXs) are extracellular proteins consisting of an N-terminal leucine-rich repeat (LRR) domain and a C-terminal extensin domain containing the typical features of this class of structural hydroxyproline-rich glycoproteins (HRGPs). The LRR domain is likely to bind an interaction partner, whereas the extensin domain has an anchoring function to insolubilize the protein in the cell wall. Based on the analysis of the root hair-expressed LRX1 and LRX2 of Arabidopsis thaliana, LRX proteins are important for cell wall development. The importance of LRX proteins in non-root hair cells and on the structural changes induced by mutations in LRX genes remains el..

View full abstract

University of Melbourne Researchers