Guest author: Colin Wellings, the international Stripe Rust Race
Stripe rust epidemics are a recurring threat to wheat yield in the majority of wheat growing regions of the world, with potential to inflict regular regional crop losses ranging from 0.1 to 5%, with rare events giving losses of 5 to 25%. Regions with current vulnerability include North America ( ...
John Bakum · 11 Jan 2012
Sustainable solutions to global problems, Q&A with Dr. Lesley Boyd
Stripe and stem rust are significant and destructive diseases in wheat, and currently pose the threat of a global epidemic. Dr. Lesley Boyd of the John Innes Centre is leading a vital project to identify and develop new molecular markers for resistance to both diseases.
John Bakum · 6 Dec 2011
Communication between barley-plant and stem rust spore
In a paper published in the Proceedings of the National Academy of Sciences, USA (PNAS), Nirmala et al. 108:14676-14681, (2011) describe the isolation and preliminary characterization of two effector proteins that coordinately induce stem rust resistance gene protein product RPG1 to become ...
John Bakum · 21 Oct 2011
Sequencing of Puccina striiformis f. sp. tritici genome
Scientists at the University of California Davis have sequenced and assembled part of the Puccinia striiformis f. sp. tritici genome, a milestone that promises to be a valuable resource for wheat rust research.
John Bakum · 14 Sep 2011
Guest Author: Robert Park at Borlaug Archives, University of Minnesota
While attending the 2011 Borlaug Global Rust Initiative Technical Workshop in St. Paul Minnesota in June, I had a rare opportunity to visit the University of Minnesota Archives with several colleagues, including Ms Jeanie Borlaug Laube, daughter of 1970 Nobel Laureate Dr. Norman Borlaug. The ...
John Bakum · 29 Jul 2011
Guest Entry: Les J. Szabo on the sequencing of the wheat stem rust fungal genome
In a paper titled, "Obligate biotrophy features unraveled by the genomic analysis of rust fungi", published in the May 31, 2011 issue of Proceedings of the National Academy of Sciences, USA(PNAS), Duplessis et al. describe the characterization of the genome and transcriptome of two rust fungi, ...
John Bakum · 19 Jul 2011
Guest Author: Ian Dundas on responsible gene sharing
The latest news on Ug99 is not good. Pathotypes virulent on Sr31, Sr24 and many other genes, have reached South Africa.Given the tendency for inter-continental west to east wind currents, Australia is now in the firing line of inoculum from South Africa for years to come. It’s game-on as far as ...
John Bakum · 3 May 2011