Research the specifics of the cell-signaling system that results in the production and the action of AUXINS

Research the specifics of the cell-signaling system that results in the production and the action of AUXINS.  This should be quite detailed as to the biochemical pathway as well as more general information on hormone source, destination, and physiological action in the organism.

a couple of paragraphs (with diagrams to illustrate)

1)  Tissue/cell source and reasons for the production of auxins

2)  Receptor cells/tissues

3)  Specific Physiological responses in the target cells/tissue and in the organism in general

4)  Further elucidation of the biochemical pathway that results in the response.