Irène Hummel

TL;DR: An unambiguous definition of plant trait is given, with a particular emphasis on functional trait, and it is argued that this can be achieved by developing "integration functions" which can be grouped into functional response (community level) and effect (ecosystem level) algorithms.

TL;DR: Evidence in plant and animal cells supports the idea that, besides biophysical effects on membranes and nucleic acids, polyamines interact with protein kinases and transcription factors and are thus involved in signal transduction pathways, and suggests that polyamines may play a role in environmentally-induced plasticity of root development.

TL;DR: It is suggested that RGR(max) and H( max) are constrained by opposite root structural and anatomical traits, which have potential links with hydraulic conductance, support and longevity.

TL;DR: Free polyamines were found to be differentially involved in the phenotypic plasticity of root architecture, and a comparison of developmental effects and physiological concentrations suggested that agmatine and spermine in particular may play a significant role in the control of root development.

TL;DR: In situations of seed germination, root development and response to chilling, the modifications of promoter activities were associated with changes in mRNA levels, emphasizing the involvement of transcriptional regulation in ARGININE DECARBOXYLASE gene expression.