New Cherry-Adapted Plum Pox Virus Phylogroups Discovered in Russia.

Plum pox virus (PPV) is the most pathogenic virus of stone fruit crops worldwide. Unusual PPV isolates were discovered on sour cherry ( L.) and steppe cherry ( Pall.

Plum Pox Virus Strain C Isolates Can Reduce Sour Cherry Productivity.

The impact of plum pox virus (PPV) on sour cherry ( L.) productivity has been studied by comparing the yield of PPV-infected and PPV-free fruit-bearing trees. A total of 152 16- to 17-year-old trees of nine cultivars and hybrids were surveyed in the production orchards (cultivar collection and hybrid testing plots) in the Republic of Tatarstan, Russia.

Sequence Analysis of Strain C Isolates from Russia Revealed Prevalence of the D96E Mutation in the Universal Epitope and Interstrain Recombination Events.

The understanding of genetic diversity, geographic distribution, and antigenic properties of (PPV) is a prerequisite to improve control of sharka, the most detrimental viral disease of stone fruit crops worldwide. Forty new PPV strain C isolates were detected in sour cherry () from three geographically distant (700⁻1100 km) regions of European Russia. Analysis of their 3'-terminal genomic sequences showed that nineteen isolates (47.

New highly divergent Plum pox virus isolates infecting sour cherry in Russia.

Unusual Plum pox virus (PPV) isolates (named Tat isolates) were discovered on sour cherry (Prunus cerasus) in Russia. They failed to be recognized by RT-PCR using commonly employed primers specific to the strains C or CR (the only ones that proved able to infect sour cherry) as well as to the strains M and W. Some of them can be detected by RT-PCR using the PPV-D-specific primers P1/PD or by TAS-ELISA with the PPV-C-specific monoclonal antibody AC.