There seems to be signals for the special "Iron bacteria cultivation" etc, but wiring these to a Biochamber seems to achieve nothing at all.
Tested in world editor, can manually select the recipe, and it is researched, but my dreams of making copper/iron on demand from the same chambers seems impossible for now ,
Ah, I tried it on a Gleba surface on my test world (Nauvis), thinking that might but have been it - but confirmed in game cultivation does set. I guess I do not know how to properly test Gleba from the editor.