WebApr 1, 2024 · In multicellular organisms, the balance between cell division and differentiation determines organ size, and represents a central unknown in developmental biology. In … WebDec 31, 2024 · Cytokinin via AHK3 activates ARR1 directly inducing the expression of SHY2 in the vasculature at the TZ. Here, SHY2 downregulates PINs expression, thus reducing the shoot to root auxin efflux and, hence, cell division activity; auxin instead induces proteasome-dependent SHY2 degradation, supporting PINs expression [54,72,73,74] .

Control of auxin-regulated root development by the

WebNov 28, 2008 · Conversely, auxin mediates degradation of the SHY2 protein, sustaining PIN activities and cell division. Thus, the cell differentiation and division balance necessary for … WebFeb 15, 1999 · Abstract. The plant hormone auxin controls many aspects of development and acts in part by inducing expression of various genes. Arabidopsis thaliana … did fitzgerald believe in the american dream

Gibberellins negatively regulate the development of

WebInduction of HS::shy2-6 for 1 hour was sufficient to reduce the expression of PIN1, PIN3, and PIN7 (Fig. 3K), and the consequent reduction of root meristem size was observed after 3 … WebJan 1, 2024 · SHY2, is a member of the Aux/IAA family in Aarbidopsis, which has been previously described as conferring a constitutively shorter hypocotyl under shade … WebIn Arabidopsis, SHY2 encodes IAA3, a member of the auxin-induced Aux/IAA family. Gain-of-function mutations in SHY2/IAA3 cause enlarged cotyledons, short hypocotyls, and … did fitzgerald retire from the cardinals