Auxin—cytokinin interactions in higher
plants: old problems and new tools
Catharina Coenena and Terri L. Lomaxb,
,
a
Universität Freiburg, Institut für Biologie II, Zellbiologie,
Schänzlestraße 1, 79104, Germany
b
Dept of Botany and Plant Pathology and Center for Gene Research and
Biotechnology, Oregon State University, Corvallis, OR 97331-2902, USA
Available online 5 February 1998.
The plant hormones auxin and cytokinin interact in a complex manner to
control many aspects of growth and differentiation. Recent advances in
understanding their metabolism and the cell cycle are now helping to
clarify the mechanisms by which these hormones act together to control
various physiological and developmental responses. Molecular and genetic
tools are being used to reveal interactions between auxin and cytokinin
at multiple levels, including mutual regulation of active hormone
availability, input into multiple signal transduction pathways,
alteration of gene expression, post-translational modifications and
direct modulation of enzyme activity.
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