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Uromyces ciceris-arietini, the Cause of Chickpea Rust: New Hosts in the Trifolieae, Fabaceae
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Uromyces ciceris-arietini has been reported on Cicer arietinum (chickpea) and Medicago polyceratia. Plants of Medicago polymorpha in Riverside and San Diego, CA were collected with severe rust caused by U. ciceris-arietini. To confirm the identification and potential new host range, a monouredinial isolate of U. ciceris-arietini from M. polymorpha was inoculated on eight accessions each of C. arietinum and M. polyceratia. All plants showed symptoms of the disease. Consequently, a range of fabaceous hosts were evaluated for their reaction to U. ciceris-arietini. New hosts for U. ciceris-arietini included 29 species of Medicago, specifically M. arabica, M. blancheana, M. ciliaris, M. constricta, M. coronata, M. doliata, M. granadensis, M. intertexta, M. italica, M. laciniata, M. lanigera, M. lesinsii, M. lupulina, M. minima, M. murex, M. muricoleptis, M. orbicularis, M. praecox, M. radiata, M. rigidula, M. rotata, M. rugosa, M. sativa, M. sauvagei, M. scutellata, M. soleirolii, M. tenoreana, M. truncatula, and M. varia, and three species of Melilotus, specifically M. italicus, M. speciosus, and M. spicatus. This isolate of U. ciceris-arietini produced no symptoms on plants in the 33 accessions tested in the genera Anthyllis, Astragalus, Lotus, and Lupinus. DNA sequences are provided to aid in the identification of this pathogen.
Plant disease: an international journal of applied plant pathology 2010 Mar., v. 94, no. 3
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