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Virulence Patterns of Oat Crown Rust in Australia – Season 2022

Plant Disease, 2023
Puccinia coronata f. sp. avenae (Pca) is an important foliar pathogen of oat which causes crown rust disease. The virulence profile of 48 Pca isolates derived from different locations in Australia was characterized using a collection of oat lines often utilized in rust surveys in the United States and Australia.
Eva C. Henningsen, David Lewis, Duong T. Nguyen, Jana Sperschneider, Shahryar F. Kianian, Eric Stone, Peter N. Dodds, Melania Figueroa   +7 more
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Confirmation of Oat Crown Rust Disease in Taiwan

Plant Disease
Oat is a minor forage crop grown in Taiwan. Only a few historical records of oat rust disease have been reported in the country. Therefore, the pathogen population remains poorly characterized. A rust-like disease outbreak was detected at the Experimental Farm of National Taiwan University in 2019, which caused significant damage to field experiments.
Chung-Ying Ho, Eva C. Henningsen, Ssu-Tung Chen, Hiran A. Ariyawansa, Eric S. Nazareno, Jana Sperschneider, Peter N. Dodds, Jakob Riddle, Shahryar F. Kianian, Melania Figueroa, Yung-Fen Huang   +10 more
openaire   +3 more sources

Three Decades of Rust Surveys in the United States Reveal Drastic Virulence Changes in Oat Crown Rust

Plant Disease, 2023
To better understand how the pathogenicity of the oat crown rust pathogen Puccinia coronata f. sp. avenae (Pca) has changed in the United States, 30 years of United States Department of Agriculture (USDA) survey isolates (n = 5,456) tested on 30 to 40 differential lines were analyzed for overall and Pc-resistance-gene-specific virulence trends and ...
Erin L. P. Moreau, Jakob M. Riddle, Eric S. Nazareno, Shahryar F. Kianian   +3 more
semanticscholar   +4 more sources

Puccinia coronata (crown rust)

PlantwisePlus Knowledge Bank, 2022
This datasheet on Puccinia coronata covers Identity, Overview, Distribution, Dispersal, Hosts/Species Affected, Diagnosis, Biology & Ecology, Seedborne Aspects, Natural Enemies, Impacts, Prevention/Control, Further Information.
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Differential impact of crown rust (Puccinia coronata) infection on photosynthesis and volatile emissions in the primary host Avena sativa and the alternate host Rhamnus frangula.

Journal of Experimental Botany, 2023
Rust infection results in decreases in photosynthesis and stress volatile emissions, but how these changes vary among host species has not been studied. We demonstrated the impact of the obligate biotrophic fungus, Puccinia coronata f. sp.
H. Sulaiman, E. Runno-Paurson, E. Kaurilind, Ü. Niinemets   +3 more
semanticscholar   +1 more source

Puccinia coronata var. coronata, a crown rust pathogen of two highly invasive species, is detected across the Midwest and Northeastern United States.

Plant Disease, 2022
Puccinia coronata var. coronata (Pcc) causes crown rust disease of glossy buckthorn (Frangula alnus) and reed canarygrass (Phalaris arundinacea), two highly invasive plant species in North America.
Nicholas Greatens, Nick Klejeski, L. Szabo, Yue Jin, P. O. Olivera Firpo   +4 more
semanticscholar   +1 more source

Mapping of the oat crown rust resistance gene Pc91

Theoretical and Applied Genetics, 2010
Crown rust is an important disease of oat caused by Puccinia coronata Corda f. sp. avenae Eriks. Crown rust is efficiently and effectively managed through the development of resistant oat varieties. Pc91 is a seedling crown rust resistance gene that is highly effective against the current P. coronata population in North America.
C A, McCartney, R G, Stonehouse, B G, Rossnagel, P E, Eckstein, G J, Scoles, T, Zatorski, A D, Beattie, J, Chong   +7 more
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Oat crown rust disease severity estimated at many time points using multispectral aerial photos.

Phytopathology, 2021
All plant breeding programs are dependent on plant phenotypic and genotypic data, but the development of phenotyping technology has been slow relative to that of genotyping. Crown rust (Puccinia coronata f. sp.
I. McNish, Kevin P. Smith
semanticscholar   +1 more source

Identification of diagnostic kompetitive allele‐specific PCR markers for selection of crown rust resistance in oats

Crop science
Crown rust disease, caused by Puccinia coronata f. sp. avenae, poses a significant threat to global oat (Avena sativa L.) production. Molecular markers are essential to assist in the integration of multiple resistance genes into a single oat cultivar to ...
Duong T. Nguyen, David Lewis, Eva C. Henningsen, R. Mago, Jana Sperschneider, Peter N. Dodds, M. Figueroa   +6 more
semanticscholar   +1 more source

Crown rust resistance in ryegrasses

1999
Reciprocal crosses between Lolium multiflorum plants and between L. multiflorum and L. perenne plants, which were either resistant or susceptible to crown rust were performed and the mode of inheritance of the resistance was analysed. In the crosses in which the resistant plants Axis-1 or Axis-2 were involved, a maternal type of inheritance was ...
E. Adams, M. De Loose, J. Baert, A. Ghesquiere, A. Depicker, E. Van Bockstaele, I. Roldán-Ruiz   +6 more
openaire   +1 more source