The -Subunit of the Arabidopsis G Protein Negatively Regulates Auxin-Induced Cell Division and Affects Multiple Developmental Processes
نویسندگان
چکیده
a Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3280 b Structural BioInformatics Core Facility, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599 c Department of Plant Research, Paradigm Genetics, Inc., Research Triangle Park, North Carolina 27709-4528 d Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037-1099
منابع مشابه
The beta-subunit of the Arabidopsis G protein negatively regulates auxin-induced cell division and affects multiple developmental processes.
Plant cells respond to low concentrations of auxin by cell expansion, and at a slightly higher concentration, these cells divide. Previous work revealed that null mutants of the alpha-subunit of a putative heterotrimeric G protein (GPA1) have reduced cell division. Here, we show that this prototypical G protein complex acts mechanistically by controlling auxin sensitivity toward cell division. ...
متن کاملProtein geranylgeranyltransferase I is involved in specific aspects of abscisic acid and auxin signaling in Arabidopsis.
Arabidopsis (Arabidopsis thaliana) mutants lacking a functional ERA1 gene, which encodes the beta-subunit of protein farnesyltransferase (PFT), exhibit pleiotropic effects that establish roles for protein prenylation in abscisic acid (ABA) signaling and meristem development. Here, we report the effects of T-DNA insertion mutations in the Arabidopsis GGB gene, which encodes the beta-subunit of p...
متن کاملHigh glucose condition down-regulates the inhibitory G-protein subunit, Gαi, in pheochromocytoma PC12 cells
Introduction: G-proteins have an important role in the cell signaling of numerous receptors. The situation of G-proteins in health and disease and their critical role in the development of diabetic side effects is an interested scientific field. Here, the changes in the expression of G-protein subunits (Gαi, Gαs and Gβ) were evaluated in hyperglycemic situation of PC12 cells as...
متن کاملThe Arabidopsis thaliana elongator complex subunit 2 epigenetically affects root development
The elongator complex subunit 2 (ELP2) protein, one subunit of an evolutionarily conserved histone acetyltransferase complex, has been shown to participate in leaf patterning, plant immune and abiotic stress responses in Arabidopsis thaliana. Here, its role in root development was explored. Compared to the wild type, the elp2 mutant exhibited an accelerated differentiation of its root stem cell...
متن کاملA genetic framework for the control of cell division and differentiation in the root meristem.
Plant growth and development are sustained by meristems. Meristem activity is controlled by auxin and cytokinin, two hormones whose interactions in determining a specific developmental output are still poorly understood. By means of a comprehensive genetic and molecular analysis in Arabidopsis, we show that a primary cytokinin-response transcription factor, ARR1, activates the gene SHY2/IAA3 (S...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003