>> I am looking for exemples where an eukaryote acquired a whole metabolic
> path (for exemple biosynthesis of a compound) from a prokaryote. I know
> of endosymbiosis but I would like exemple swhere there is nothing left
> of the endosymbiont ( cryptic or transient endosymbiosis ? )
>> Do you have any idea or reference ?
Takaya et al have written "Fungal denitrification, a repsiratory system
possibly acquired by horizontal gene transfer from prokaryotes" that
in Horizontal Gene Transfer (http://www.wkap.nl/book.htm/0-412-79310-5).
If you don't have access to the book, look up Fusarium oxysporum and the
above author in biosis, there might be some other paper.