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Curr Opin Plant Biol. 2016 Oct;33:8-14. doi: 10.1016/j.pbi.2016.04.004. Epub 2016 Apr 27.

Auxin perception and downstream events.

Author information

1
Department of Biology, Washington University, St. Louis, MO 63130, USA. Electronic address: strader@wustl.edu.
2
Section of Cell and Developmental Biology, University of California San Diego, La Jolla, CA 92093-0116, USA. Electronic address: yundezhao@ucsd.edu.

Abstract

Auxin responses have been arbitrarily divided into two categories: genomic and non-genomic effects. Genomic effects are largely mediated by SCFTIR1/AFB-Aux/IAA auxin receptor complexes whereas it has been postulated that AUXIN BINDING PROTEIN 1 (ABP1) controls the non-genomic effects. However, the roles of ABP1 in auxin signaling and plant development were recently called into question. In this paper, we present recent progress in understanding the SCFTIR1/AFB-Aux/IAA pathway. In more detail, we discuss the current understanding of ABP1 research and provide an updated view of ABP1-related genetic materials. Further, we propose a model in which auxin efflux carriers may play a role in auxin perception and we briefly describe recent insight on processes downstream of auxin perception.

PMID:
27131035
PMCID:
PMC5050066
DOI:
10.1016/j.pbi.2016.04.004
[Indexed for MEDLINE]
Free PMC Article

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