Simple hormones but complex signalling.
It has not been easy to make sense of the pleiotropic effects of plant hormones, especially of auxins; but now, it has become possible to study these effects within the framework of what we know about signal transduction in general. Changes in local auxin concentrations, perhaps even actively maintained auxin gradients, signal to networks of transcription factors, which in turn signal to downstream effectors. Transcription factors can also signal back to hormone biosynthetic pathways.
Vogler
Hannes
H
Institute of Plant Sciences, University of Berne, Altenbergrain 21, Switzerland.
Kuhlemeier
Cris
C
D001692:Biological Transport / Q000235:genetics / Q000502:physiology; D003583:Cytokinins / Q000378:metabolism; D018506:Gene Expression Regulation, Plant; D005875:Gibberellins / Q000378:metabolism; D007210:Indoleacetic Acids / Q000378:metabolism*; D008565:Membrane Proteins / Q000235:genetics / Q000378:metabolism; D018519:Meristem / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D063245:Plant Development; D010937:Plant Growth Regulators / Q000378:metabolism*; D018520:Plant Shoots / Q000235:genetics / Q000254:growth & development / Q000378:metabolism; D010944:Plants / Q000235:genetics; D015398:Signal Transduction / Q000235:genetics / Q000502:physiology*; D014157:Transcription Factors / Q000235:genetics / Q000502:physiology*
D003583:Cytokinins; D005875:Gibberellins; D007210:Indoleacetic Acids; D008565:Membrane Proteins; D010937:Plant Growth Regulators; D014157:Transcription Factors; C030737:indoleacetic acid