Organogenesis 2 Delay senescence 4 Promote cell division 1 Light-mediated development 6 Meristem function 7 • Nutrient response • Apical dominance • Vascular development • Pathogen Sink/Source Relationships 5 14 C aminoisobutyric acid kinetin kinetin [BA] H N N N N HN R Nodulati on 3