How do auxins stimulate plant growth?

Question

anonymous · Answer

The auxin supply from the apical bud suppresses growth of lateral buds 
Delays leaf senescence 
Can inhibit or promote (via ethylene stimulation) leaf and fruit abscission 
Can induce fruit setting and growth in some plants 
Involved in assimilate movement toward auxin possibly by an effect on phloem transport 
Delays fruit ripening 
Promotes flowering in Bromeliads 
Stimulates growth of flower parts 
 Promotes (via ethylene production) femaleness in dioecious flowers 
Stimulates the production of ethylene at high concentrations