TY - JOUR

T1 - Characterization of potato spindle tuber viroid isolates (Pospiviroid fusituberis) occurrence on tomato plants in Russia

AU - Plotnikov, Kirill Olegovich

AU - Nikulin, Akim Sergeevitch

AU - Blinov, Alexander Gennadievich

AU - Ryabinina, Valeria Alexeevna

AU - Biryukov, Mikhail Yurievich

AU - Dmitrieva, Anastasia Mikhailovna

AU - Chepurnov, Grigory Yurievich

N1 - Plotnikov, K.O., Nikulin, A.S., Blinov, A.G. et al. Characterization of potato spindle tuber viroid isolates (Pospiviroid fusituberis) occurrence on tomato plants in Russia. J Plant Dis Prot 133, 100 (2026). https://doi.org/10.1007/s41348-026-01296-1 This article is funded by Institute of Molecular and Cell Biology, Siberian Branch of the Russian Academy of Sciences (FWGZ-2021-0014).

PY - 2026/6/10

Y1 - 2026/6/10

N2 - This work reports the first detection of potato spindle tuber viroid (PSTVd) on tomato plants in Russia. Plants showing signs of PSTVd infection were found in greenhouses in Khabarovsk Region and Stavropol Region. Three isolates of viroids, H41, K168 and K169, were isolated. Phylogenetic analysis established their close relationship with the isolates infecting potato plants previously characterized in Russia. The analysis of the secondary structures of the detected isolates also showed their similarity to the previously characterized isolates. However, for the H41 isolate, the insertion of two nucleotides in the PM1 loop of the pathogenic VM region (VMR) was noted. Insertions in the PM1 loop increased the free energy values of this structural element. The information obtained suggests that genetically Russian isolates do not undergo significant changes in the main structural elements even during the transition from potato to tomato, but there are insertions in the PM1 loop related to the virulence modulation region.

AB - This work reports the first detection of potato spindle tuber viroid (PSTVd) on tomato plants in Russia. Plants showing signs of PSTVd infection were found in greenhouses in Khabarovsk Region and Stavropol Region. Three isolates of viroids, H41, K168 and K169, were isolated. Phylogenetic analysis established their close relationship with the isolates infecting potato plants previously characterized in Russia. The analysis of the secondary structures of the detected isolates also showed their similarity to the previously characterized isolates. However, for the H41 isolate, the insertion of two nucleotides in the PM1 loop of the pathogenic VM region (VMR) was noted. Insertions in the PM1 loop increased the free energy values of this structural element. The information obtained suggests that genetically Russian isolates do not undergo significant changes in the main structural elements even during the transition from potato to tomato, but there are insertions in the PM1 loop related to the virulence modulation region.

KW - Crop protection

KW - PSTVd

KW - Phylogeny

KW - Phytopathology

KW - Secondary structure

UR - https://www.scopus.com/pages/publications/105041465347

UR - https://www.mendeley.com/catalogue/9db44d1b-d83c-308a-a4b3-da8bb5f8038e/

U2 - 10.1007/s41348-026-01296-1

DO - 10.1007/s41348-026-01296-1

M3 - Article

VL - 133

JO - Journal of Plant Diseases and Protection

JF - Journal of Plant Diseases and Protection

SN - 1861-3829

IS - 4

M1 - 100

ER -