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Historical Overview of Stripe Rust Research

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ICARDA
ICARDA

Robert A. McIntosh Professor Emeritus Plant breeding Institute The university of Sydney Cobbitty, NSW Australia

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ROBERT A. MCINTOSH THE UNIVERSITY OF SYDNEY PLANT BREEDING INSTITUTE COBBITTY, NSW AUSTRALIA Historical Overview of Stripe Rust Research
TAXONOMY OF THE PATHOGEN ,[object Object],[object Object],[object Object],[object Object],[object Object]
SPECIES SPECIALIZATION ,[object Object],[object Object],[object Object],[object Object],[object Object]
f. sp. tritici f. sp. hordei f. sp. pseudohordei - PNW21 ? Puccinia striiformis formae speciales
Almost worldwide Historically considered to favour cooler areas Recent outbreaks defy assumptions Are there unique aspects of environment that determine distribution? Are current races more adapted to high temperatures What factors determine distribution within regions? Puccinia striiformis tritici Distribution
Up to 50%, but occasionally higher Stripe rust losses
 
 
DISEASE CYCLE ,[object Object],[object Object],[object Object],[object Object]
LIFE CYCLE OF A RUST PATHOGEN
EPIDEMIOLOGY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
PATHOGENIC VARIATION IN PST ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
GENETICS OF RESISTANCE ,[object Object],[object Object],[object Object],[object Object],[object Object]
DURABILITY OF RESISTANCE ,[object Object],[object Object],[object Object]
BREEDING FOR STRIPE RUST RESISTANCE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
POST-RELEASE VARIETY MANAGEMENT ,[object Object],[object Object],[object Object],[object Object]
WHAT MAKES RUST EXCITING

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Historical Overview of Stripe Rust Research

  • 1. ROBERT A. MCINTOSH THE UNIVERSITY OF SYDNEY PLANT BREEDING INSTITUTE COBBITTY, NSW AUSTRALIA Historical Overview of Stripe Rust Research
  • 2.
  • 3.
  • 4. f. sp. tritici f. sp. hordei f. sp. pseudohordei - PNW21 ? Puccinia striiformis formae speciales
  • 5. Almost worldwide Historically considered to favour cooler areas Recent outbreaks defy assumptions Are there unique aspects of environment that determine distribution? Are current races more adapted to high temperatures What factors determine distribution within regions? Puccinia striiformis tritici Distribution
  • 6. Up to 50%, but occasionally higher Stripe rust losses
  • 7.  
  • 8.  
  • 9.
  • 10. LIFE CYCLE OF A RUST PATHOGEN
  • 11.
  • 12.
  • 13.  
  • 14.
  • 15.
  • 16.
  • 17.
  • 18. WHAT MAKES RUST EXCITING