Overexpression of the Arabidopsis gene UPRIGHT ROSETTE reveals a homeostatic control for indole-3-acetic acid (IAA)

13.05.2010

Sun Y, Yang Y, Yuan Z, Müller JL, Yu C, Xu Y, Shao X, Li X, Decker EL, Reski R, Huang H.

Plant Physiol 153(3):1311-20

Plant Physiol      online article

Auxins are phytohormones that are essential for many aspects of plant growth and development. The main auxin produced by plants is indole-3-acetic acid (IAA). IAA exists in free and conjugated forms, corresponding to the bioactive and stored hormones, respectively. Free IAA levels, which are crucial for various physiological activities, are maintained through a complex network of environmentally and developmentally responsive pathways including IAA biosynthesis, transport, degradation, conjugation, and conjugate hydrolysis.

Protonema cells of Physcomitrella patens