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PMID: 21357648 Published · ppublish English Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Review

Transport and metabolism of the endogenous auxin precursor indole-3-butyric acid.

Molecular plant ·Vol. 4 ·No. 3 ·2011-05-00 ·Pages 477-86

Strader LC, Bartel B

Abstract

Plant growth and morphogenesis depend on the levels and distribution of the plant hormone auxin. Plants tightly regulate cellular levels of the active auxin indole-3-acetic acid (IAA) through synthesis, inactivation, and transport. Although the transporters that move IAA into and out of cells are well characterized and play important roles in development, little is known about the transport of IAA precursors. In this review, we discuss the accumulating evidence suggesting that the IAA precursor indole-3-butyric acid (IBA) is transported independently of the characterized IAA transport machinery along with the recent identification of specific IBA efflux carriers and enzymes suggested to metabolize IBA. These studies have revealed important roles for IBA in maintaining IAA levels and distribution within the plant to support normal development.

MeSH Terms
Biological Transport Indoleacetic Acids/chemistry,metabolism Indoles/chemistry,metabolism Peroxisomes/metabolism Plant Proteins/metabolism
Chemicals
Indoleacetic Acids Indoles Plant Proteins indolebutyric acid
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Strader Lucia C
Department of Biochemistry and Cell Biology, Rice University, Houston, TX 77005, USA.
Bartel Bonnie
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Article Info
Journal
Molecular plant
Abbr.
Mol Plant
ISSN
1752-9867
DOI
10.1093/mp/ssr006
Published
2011-05-00
Epub
2011-00-28
Pages
477-86
Language
English
Region
England
NLM ID
101465514
PMCID
PMC3098716
Subset
IM
Grants
NIGMS NIH HHS · R01 GM079177 · United States
NIGMS NIH HHS · R01 GM079177-04 · United States
NIGMS NIH HHS · R01GM079177 · United States
NCRR NIH HHS · S10RR026399 · United States
NIGMS NIH HHS · 1K99-GM089987 · United States
NCRR NIH HHS · S10 RR026399 · United States
NIGMS NIH HHS · R01 GM079177-03 · United States
NIGMS NIH HHS · R00 GM089987 · United States
NCRR NIH HHS · S10 RR026399-01 · United States
External Links
PubMed source DOI: 10.1093/mp/ssr006 PMC Full Text View journal details
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