Abstract
Barberry (Berberis spp.) is an alternate host for both the stripe rust pathogen, Puccinia striiformis f. sp. tritici (Pst), and the stem rust pathogen, P. graminis f. sp. tritici (Pgt), infecting wheat. Infection risk was assessed to determine whether barberry could be infected by either of the pathogens in Asia and Southeastern Europe, known for recurring epidemics on wheat and the presence of barberry habitats. For assessing infection risk, mechanistic infection models were used to calculate infection indices for both pathogens on barberry following a modeling framework. In East Asia, Bhutan, China, and Nepal were found to have low risks of barberry infection by Pst but high risks by Pgt. In Central Asia, Azerbaijan, Iran, Kazakhstan, southern Russia, and Uzbekistan were identified to have low to high risks of barberry infection for both Pst and Pgt. In Northwest Asia, risk levels of both pathogens in Turkey and the Republic of Georgia were determined to be high to very high. In Southwest Asia, no or low risk was found. In Southeastern Europe, similar high or very high risks for both pathogens were noted for all countries. The potential risks of barberry infection by Pst and/or Pgt should provide guidelines for monitoring barberry infections and could be valuable for developing rust management programs in these regions. The framework used in this study may be useful to predict rust infection risk in other regions.
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Claims 6
Claim · model-written summary
East Asian barberry infection risk from Pst was low
Verbatim
e0“In East Asia, Bhutan, China, and Nepal were found to have low risks of barberry infection by Pst but high risks by Pgt”
Claim · model-written summary
East Asian barberry infection risk from Pgt was high
Verbatim
e0“In East Asia, Bhutan, China, and Nepal were found to have low risks of barberry infection by Pst but high risks by Pgt”
Claim · model-written summary
Central Asian barberry infection risk from both pathogens ranged low to high
Verbatim
e0“In Central Asia, Azerbaijan, Iran, Kazakhstan, southern Russia, and Uzbekistan were identified to have low to high risks of barberry infection for both Pst and Pgt”
Claim · model-written summary
Northwest Asian barberry infection risk from both pathogens was high to very high
Not reportedTaxon
Verbatim
e0“In Northwest Asia, risk levels of both pathogens in Turkey and the Republic of Georgia were determined to be high to very high”
Claim · model-written summary
Southwest Asian barberry infection risk was none or low
Not reportedTaxon
Verbatim
e0“In Southwest Asia, no or low risk was found”
Claim · model-written summary
Southeastern European barberry infection risk from both pathogens was high or very high
Not reportedTaxon
Verbatim
e0“In Southeastern Europe, similar high or very high risks for both pathogens were noted for all countries”