(19)

(11)

EP 0 809 432 A1

(12)

(43) Date of publication: 03.12.1997 Bulletin 1997/49 (21) Application number: 96900470.0 (22) Date of filing: 15.01.1996

(51) International Patent Classification (IPC):  A01H 4/ 00( . ) C12N 15/ 82( . ) A01H 5/ 12( . ) (86) International application number: PCT/AU1996/000016 (87) International publication number: WO 1996/022015 (25.07.1996 Gazette 1996/34)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: LT LV SI (30) Priority: 16.01.1995 AU 1995PN00563 (71) Applicant: THE UNIVERSITY OF MELBOURNE Parkville, Victoria 3052 (AU)	(72) Inventors: BHALLA, Prem, Lata Templestowe, VIC 3106 (AU) SINGH, Mohan, Bir Templestowe, VIC 3106 (AU) (74) Representative: Dzieglewska, Hanna Eva  Frank B. Dehn & Co., European Patent Attorneys, 179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)