Details

Autor(en) / Beteiligte

• Kriechbaumer, Verena
• Botchway, Stanley W.
• Hawes, Chris

Titel

Localization and interactions between Arabidopsis auxin biosynthetic enzymes in the TAA/YUC-dependent pathway

Ist Teil von

• Journal of experimental botany, 2016-07, Vol.67 (14), p.4195-4207

Ort / Verlag

England: Oxford University Press

Erscheinungsjahr

2016

Quelle

MEDLINE

Beschreibungen/Notizen

• The growth regulator auxin is involved in all key developmental processes in plants. A complex network of a multiplicity of potential biosynthetic pathways as well as transport, signalling plus conjugation and deconjugation lead to a complex and multifaceted system system for auxin function. This raises the question how such a system can be effectively organized and controlled. Here we report that a subset of auxin biosynthetic enzymes in the TAA/YUC route of auxin biosynthesis is localized to the endoplasmic reticulum (ER). ER microsomal fractions also contain a significant percentage of auxin biosynthetic activity. This could point toward a model of auxin function using ER membrane location and subcellular compartmentation for supplementary layers of regulation. Additionally we show specific protein–protein interactions between some of the enzymes in the TAA/YUC route of auxin biosynthesis.