Antibodies to plant proteins

[Zeno Apostolides]

Hi folks,
Can someone please recommend a catalogue that lists antibodies to plant 
proteins? I am looking for antibodies for plant polyphenol oxidase enzymes.
Alternatively, give a name of a group that may have prepared such antibodies.

Thanks in advance,
Zeno

Zeno Apostolides                           zeno at ccnet.up.ac.za
Department of Biochemistry                 100100,423 at CompuServe.com
University of Pretoria
Pretoria 0002                              Tel (27)(12)420-2486
South Africa                               FAX (27)(12)342-1449