Australian Cereal Rust Control Program Robert Park GRDC Chair of Cereal Rust Research Australian Cereal Rust Control Program Consultative Committee September 26 th 2011 Pathogenicity surveys - wheat stem rust and wheat leaf rust - barley leaf rust - oat crown rust
Database, including cereal rust collection and rust surveys, set up ca. 15 years ago In recent years, demand for rapid notification of results has increased In the past 2 years, Dr Wellings has done this manually Dr Nabil Ahmad (PBI) kindly restructured the database in FileMaker Pro, early 2011 All samples received for pathoytping are now acknowledged, and results sent as soon as they are generated, by Pathogenicity surveys, rust database
375 samples received to date, 8 from artificially inoculated material Wheat stem rust Common in commercial wheat crops in south eastern Australia Found on Yitpi volunteers in the Mallee in late February samples received, 4 pts identified: 34-2,12,13 (nNSW, 3 isolates) 34-2,12,13 +Sr21 (nNSW 1 isolate) 34-1,2,7 +Sr38 (45 isolates) 34-1,2,7 +Sr38 [Yalta Low] (6 isolates) Pathogenicity surveys, number of samples received and processed Year Pathogen * WSR WLR WYR BLR BSR OCR OSR Total , , * As at 26 September 2011
Pathogenicity surveys, 2011 – wheat stem rust 21 samples received to date 19 from eastern Australia, 2 from WA samples from EA received since April seven samples not yet processed 19 IDs, 2 pts identified: 34-1,2,7 +Sr38 (15 isolates) 34-1,2,7 +Sr38 [Yalta Low] (4 isolates)
Pathogenicity surveys, 2011 – wheat leaf rust 29 samples received to date all from eastern Australia 19 not yet processed 13 IDs, 4 pts identified: 104-1,2,3,(6),(7),11 (1 isolate) 104-1,2,3,(6),(7),11 +Lr37 (7 isolates) 76-3,5,9,10,12 +Lr37 (4 isolates) 76-1,3,5,9,10,12 (1 isolate)
Pathogenicity surveys, 2011 – wheat leaf rust 29 samples received to date all from eastern Australia 19 not yet processed 13 IDs, 4 pts identified: 104-1,2,3,(6),(7),11 (1 isolate) 104-1,2,3,(6),(7),11 +Lr37 (7 isolates) 76-3,5,9,10,12 +Lr37 (4 isolates) 76-1,3,5,9,10,12 (1 isolate)
Pathogenicity surveys, 2011 – barley leaf rust 19 samples received to date 6 from WA, 13 from eastern Australia 8 not yet processed 18 IDs, 7 pts identified: 5453P- (5 isolates) 5453P+ (6 isolates) 5457P+ (1 isolate; Qld) 5473P+ (2 isolates) 5652P+ (1 isolate) 220P+ (2 isolates) 5672P+ (1 isolate)
Pathogenicity surveys, 2011 – barley leaf rust 19 samples received to date 6 from WA, 13 from eastern Australia 8 not yet processed 18 IDs, 7 pts identified: 5453P- (5 isolates) 5453P+ (6 isolates) 5457P+ (1 isolate; Qld) 5473P+ (2 isolates) 5652P+ (1 isolate) 220P+ (2 isolates) 5672P+ (1 isolate) 5453P- 5453P+ +Rph P+ +Rph3 5473P+ +Rph5
** incl. pathotypes virulent on Nugene, Warrego, Graza 68, Gwydir, Volta, Genie * incl. pathotypes virulent on Amby, Nobby, Bettong, Barcoo No.CommonRegion Lineage pts Qld/ nNSW sNSW/Vic/SAWA “Pc61” * “Pc38/Pc39/Pc55/Pc71” ** ,6,10 +Warrego Pathogenicity surveys, 2011 – oat crown rust 30 samples received to date, 15 IDs, 11 pathotypes: