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HCPro Suppression of Callose Deposition Contributes to Strain-Specific Resistance Against Potato Virus Y

Phytopathology. 2020; 
Chowdhury RN, Lasky D, Karki H, Zhang Z,, Goyer A, Halterman D, Rakotondrafara AM.
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Peptide Synthesis … Katahdin were double-rub inoculated with either buffer or PVY O or PVY N:O inoculum with an interval of 24 h and kept at 20°C; 12 h after the last inoculation, the inoculated area was infiltrated with 1 μM synthetic flg22 peptide (catalog number RP19986; GenScript) and placed … Get A Quote

摘要

Potato virus Y (PVY; Potyviridae) is a continuing challenge for potato production owing to the increasing popularity of strain-specific resistant cultivars. Hypersensitive resistance (HR) is one type of plant defense responses to restrict virus spread. In many potato cultivars, such as cultivar Premier Russet (PR), local necrosis at the site of infection protects against the most common PVYO strain, but the HR often fails to restrain necrotic strains, which spread systemically. Here, we established the role of callose accumulation in the strain-specific resistance responses to PVY infection. We first uncovered that PVY, independent of the strain, is naturally capable of suppressing pathogenesis-related callose ... More

关键词

genetics and resistance; virology