branched-chain amino acids catabolism

[Jitao]

Hi, Netters:
    Would someone out there know any references about branched-chain 
amino acids (leucine, isoleucine, and valine) catabolism in plant, or  
is there a branched-chain alpha-ketoacid dehydrogenase complex in plant 
cell that catalyzes the oxidative decarboxylation of the 
branched-chain alpha-ketoacids derived from branched chain amino 
acids. Any help would be appreciated.

Jzou at pbi.nrc.ca