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Frontiers in Plant Science

Frontiers in Plant Science

IF: 4.09
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Indole 3-Butyric Acid Metabolism and Transport in Arabidopsis thaliana.

Published:3 July 2019 DOI: 10.3389/fpls.2019.00851 PMID: 31333697
Suresh Damodaran, Lucia C Strader

Abstract

Auxin is a crucial phytohormone involved in multiple plant developmental processes. Spatiotemporal regulation of auxin levels is necessary to achieve development of organs in the proper place and at the proper time. These levels can be regulated by conversion of auxin [indole 3-acetic acid (IAA)] from its conjugated forms and its precursors. Indole 3-butyric acid (IBA) is an auxin precursor that is converted to IAA in a peroxisomal β-oxidation process. In Arabidopsis, altered IBA-to-IAA conversion leads to multiple plant defects, indicating that IBA contributes to auxin homeostasis in critical ways. Like IAA, IBA and its conjugates can be transported in plants, yet many IBA carriers still need to be identified. In this review, we discuss IBA transporters identified in Arabidopsis thus far, including the pleiotropic drug resistance (PDR) members of the G subfamily of ATP-binding cassette transporter (ABCG) family, the TRANSPORTER OF IBA1 (TOB1) member of the major facilitator superfamily (MFS) family and hypothesize other potential IBA carriers involved in plant development.

Substances (4)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Indole-3-acetic acid 87-51-4 C10H9NO2 818 suppliers $11.20-$1339.52
Indole-3-butyric acid 133-32-4 C12H13NO2 775 suppliers $10.00-$1000.00
Isobutyramide 563-83-7 C4H9NO 327 suppliers $14.00-$1647.00
INDOLE-3-ACETIC ACID 6505-45-9 C10H10NNaO2 159 suppliers $32.00-$775.00

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