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Systemic infection of cowpea aphid-borne mosaic virus in Passiflora spp. occurs at the initial stage regardless of the species' resistance.
Arch Virol
January 2025
Universidade Estadual de Santa Cruz, UESC, Ilhéus, BA, CEP 45662-900, Brazil.
Passion fruit woodiness disease (PWD), caused by cowpea aphid-borne mosaic virus (CABMV), severely damages leaves and fruits, compromising passion fruit production. The dynamics of this infection in Passiflora spp. are still poorly understood.
View Article and Find Full Text PDFScreening for broad-spectrum resistance to Turnip mosaic virus.
Breed Sci
September 2024
Graduate School of Agricultural Science, Tohoku University, 468-1 Aramaki Aza Aoba, Aobaku, Sendai, Miyagi 980-8572, Japan.
Turnip mosaic virus (TuMV) poses a major threat to crops like Chinese cabbage, causing significant economic losses. A viable and effective strategy to manage such diseases is by improvement of genetic-based viral resistance. To achieve this, it is important to have detailed and wide-ranging genetic resources, necessitating genetic exploration.
View Article and Find Full Text PDFSuppressing Tymovirus replication in plants using a variant of ubiquitin.
PLoS Pathog
January 2025
Department of Microbiology, Faculty of Science, University of Manitoba, Winnipeg, Manitoba, Canada.
RNA viruses have evolved numerous strategies to overcome host resistance and immunity, including the use of multifunctional proteases that not only cleave viral polyproteins during virus replication but also deubiquitinate cellular proteins to suppress ubiquitin (Ub)-mediated antiviral mechanisms. Here, we report an approach to attenuate the infection of Arabidopsis thaliana by Turnip Yellow Mosaic Virus (TYMV) by suppressing the polyprotein cleavage and deubiquitination activities of the TYMV protease (PRO). Performing selections using a library of phage-displayed Ub variants (UbVs) for binding to recombinant PRO yielded several UbVs that bound the viral protease with nanomolar affinities and blocked its function.
View Article and Find Full Text PDFSequence Notes: Identification of Three Novel HIV-1 Recombinant Strains with Different Recombination Patterns in Hebei Province, China.
AIDS Res Hum Retroviruses
January 2025
Clinical Laboratory of the People's Hospital of Baoding, Baoding, China.
The global human immunodeficiency virus 1 (HIV-1) pandemic is driven by the extraordinary genetic diversity of the virus, largely resulting from frequent recombination events. These events generate circulating recombinant forms (CRFs) and unique recombinant forms, which significantly contribute to the complexity of HIV-1 epidemiology, especially within key populations, such as men who have sex with men (MSM). Here, we identified three novel HIV-1 recombinant strains consisting of the CRF01_AE and CRF07_BC subtypes from HIV-positive MSM in Baoding City, Hebei Province, China.
View Article and Find Full Text PDFHigh-Throughput Oxford Nanopore Sequencing Unveils Complex Viral Population in Kansas Wheat: Implications for Sustainable Virus Management.
Viruses
January 2025
Department of Plant Pathology, Throckmorton Plant Science Center, Kansas State University, Manhattan, KS 66506, USA.
Wheat viruses are major yield-reducing factors, with mixed infections causing substantial economic losses. Determining field virus populations is crucial for effective management and developing virus-resistant cultivars. This study utilized the high-throughput Oxford Nanopore sequencing technique (ONT) to characterize wheat viral populations in major wheat-growing counties of Kansas from 2019 to 2021.
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