Psa4 (Chapman et al. 2012) = Psa-LV. LOPAT 1a.
R. Taylor, 0/0/11
Other Details:
Fluorescent on Kings B
Pathogenic to:
"P. syringae pv. actinidifoliorum ICMP 18883 were both non-pathogenic on cherry fruitlets but were clearly pathogenic if inoculated on peach and almond leaves" Ruinelli, M., Blom, J., Smits, T.H.M. et al. Comparative genomics and pathogenicity potential of members of the Pseudomonas syringae species complex on Prunus spp. BMC Genomics 20, 172 (2019). https://doi.org/10.1186/s12864-019-5555-y
R. Williams, 27 Mar 2020
Pathogenic to:
"When inoculated on A. deliciosa ‘Hayward’ by lower leaf spray inoculation, the Psa 4-LV strains,
including ICMP 18883, which was isolated from Hayward, caused tiny necrotic spots that never progressed toinfection, whereas the other three Psa populations induced clear and typical signs of disease (leaf spotting,
necrotic areas, water-soaked areas)"
Ferrante, P. and Scortichini, M. (2015), Redefining the global populations of Pseudomonas syringae pv. actinidiae based on pathogenic, molecular and phenotypic characteristics. Plant Pathol, 64: 51-62. doi:10.1111/ppa.12236