Cytokinins - Cytokinins promote shoot
development, delay leaf senescence, contribute to stress and pathogen
responses, and serve as important signals to integrate growth rates
throughout the plant. The identification of genes controlling CK
synthesis and signaling has allowed us to understand the molecular basis
for some of these effects with the hope of manipulating them for
improved crop productivity, through increased drought tolerance,
nutrient uptake and seed production. Furthermore, the exploration of the
histidine-kinase phosphorelay system that is central to CK signaling
has revealed a complex and fascinating cell signaling pathway. First posted June 23, 2010, revised by John Chandler (john.chandler@uni-koeln.de) October 10, 2013. www.plantcell.org/cgi/doi/10.1105/tpc.110.tt0610