This project is continued in the lab of our former postdoc Dr. Laura Ragni, now a group leader at the Center for Plant Molecular Biology, Tuebingen.
Often neglected, but one of the most important growth processes in plants is secondary growth, the thickening of stem and root structures by radial expansion. We like to use the Arabidopsis hypocotyl as a model for this process, because its later phase secondary growth is reminiscent of trees and can be triggered at will via a transgenic system. Find out more about our work on secondary growth in the following publications:
Martial Sankar, Kaisa Nieminen, Laura Ragni, Ioannis Xenarios and Christian S. Hardtke (2014): Automated quantitative histology reveals vascular morphodynamics during Arabidopsis hypocotyl secondary growth. eLife, http://dx.doi.org/10.7554/eLife.01567.
Laura Ragni, Kaisa Nieminen, David Pacheco-Villalobos, Richard Sibout, Claus Schwechheimer and Christian S. Hardtke (2011): A direct stimulatory role of mobile gibberellin in Arabidopsis hypocotyl xylem expansion. The Plant Cell, Vol. 23: pp. 1322-1336.