Mechanisms of auxin signaling.
The plant hormone auxin triggers complex growth and developmental processes. Its underlying molecular mechanism of action facilitates rapid switching between transcriptional repression and gene activation through the auxin-dependent degradation of transcriptional repressors. The nuclear auxin signaling pathway consists of a small number of core components. However, in most plants each component is represented by a large gene family. The modular construction of the pathway can thus produce diverse transcriptional outputs depending on the cellular and environmental context. Here, and in the accompanying poster, we outline the current model for TIR1/AFB-dependent auxin signaling with an emphasis on recent studies.
Section of Cell and Developmental Biology and Howard Hughes Medical Institute, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA.
Meirav
M
Lavy
Section of Cell and Developmental Biology and Howard Hughes Medical Institute, University of California San Diego, 9500 Gilman Dr., La Jolla, CA 92093, USA mestelle@ucsd.edu.
Mark
0000-0002-2613-8652
M
Estelle
D018506:Gene Expression Regulation, Plant / Q000502:physiology; D007210:Indoleacetic Acids / Q000378:metabolism*; D010937:Plant Growth Regulators / Q000378:metabolism; D015398:Signal Transduction / Q000502:physiology*
D007210:Indoleacetic Acids; D010937:Plant Growth Regulators
Auxin; Cellular response; Transcriptional response