...R. Emily Martin; Eliana Marzol; Jose M. Estevez; Gloria K. Muday ABSTRACT Root hair initiation is a highly regulated aspect of root development. The plant hormone ethylene and its precursor, 1-amino-cyclopropane-1-carboxylic acid, induce formation and elongation of root hairs. Using confocal...

...Jorge E. Salazar-Henao; Isabel Cristina Vélez-Bermúdez; Wolfgang Schmidt Root hairs are highly specialized cells found in the epidermis of plant roots that play a key role in providing the plant with water and mineral nutrients. Root hairs have been used as a model system for understanding both...

... interests. 23 2 2010 © 2010. 2010 Epidermal patterning Position-dependent signals Root hairs Arabidopsis The Arabidopsis thaliana root epidermis provides an attractive system to study position-dependant cell patterning and specification. Epidermal cell types at defined...

... circuit of intercellular communication to specify the epidermal cell types. * Author for correspondence (e-mail: [email protected] ) 5 11 2004 ©2005. 2005 Epidermis Pattern formation Root hairs Gene regulation Cell differentiation Embryogenesis Cell communication Hypocotyl...

... members can confer opposite phenotypic effects. To understand the molecular basis for this functional specificity in the Aux/IAA family, we have studied a pair of Aux/IAAs, which have contrasting roles in root hair development. We have found that stabilising mutations in AXR3/IAA17 blocks root hair...

... cell types, root-hair cells and hairless cells, which are located at distinct positions within the root, implying that positional cues control cell-type differentiation. During the development of the root epidermis, the differentiating root-hair cells (trichoblasts) and the differentiating hairless...