12/23/2023 0 Comments Bacterial blight pathogen![]() ![]() alisalensis is capable of infecting a wide range of Brassicas, including crop varieties of multiple species: Brassica rapa L. alisalensis has since been reclassified as Pca ( Bull et al., 2010a). alisalensis) responsible for bacterial blight of Brassicas ( Bull et al., 2004 Cintas et al., 2002 Takahashi et al., 2013 Wechter et al., 2013). maculicola but were later determined to be incited by a new pathovar (pv. Initial reports attributed the disease to Pseudomonas syringae pv. alisalensis host plant resistanceīacterial blight emerged in the 1990s as a major disease of Brassicaceae crops and has since spread worldwide with disease incidence reports from Europe ( Rubio et al., 2012 Sarris et al., 2010), Asia ( Takahashi et al., 2013), Australia ( Bull and Rubio, 2011), and both the East and West coasts of the United States ( Cintas et al., 2002 Keinath et al., 2006 Wechter et al., 2010). Keywords: Brassica oleracea Pseudomonas cannabina pv. Department of Agriculture (USDA) viridis collection, which provides a valuable source of resistance alleles for collard cultivar development and introgression into other B. Two sources of significant resistance were identified in the U.S. All commercial cultivars tested displayed an intermediate disease response resulting in leaf lesion development that renders the product unmarketable. viridis germplasm, including leafy green collard and collard-like accessions, for resistance to bacterial leaf blight by artificial inoculation of Pca in greenhouse trials. We report the first screening of Brassica oleracea L. ![]() With no chemical control options available, the most effective form of disease control is host plant resistance, but thus far resistant germplasm has only been identified in Brassica juncea L. alisalensis ( Pca) is a devastating disease with incidence reports worldwide and a wide host range capable of infecting all commercially valuable Brassica crops. Bacterial leaf blight incited by Pseudomonas cannabina pv. ![]()
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