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Contigs with sequence homologies to apple chlorotic leaf spot virus (ACLSV) were identified by high-throughput sequencing analysis in three peach samples. Complete genomic sequences of RP19-1 and RP19-2 of the virus consisted of 7,466 and 7,465 nucleotides (nts), respectively, excluding the poly (A) tails. They shared the highest identity with Ta Tao 5, but lower than 70% of sequence similarity with other ACLSV isolates. Furthermore, phylogenetic analysis revealed that these two isolates clustered with Ta Tao 5, which is distinct from other ACLSV isolates. According to the criteria for species demarcation within the genus Trichovirus, these two isolates as well as Ta Tao 5 should be recognized as a new virus species, tentatively named "Peach chlorotic leaf spot virus".
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http://dx.doi.org/10.1007/s00705-018-3984-6 | DOI Listing |
Microbiol Spectr
August 2025
New South Wales Department of Primary Industries and Regional Development, Agriculture and Biosecurity, Elizabeth Macarthur Agricultural Institute, Menangle, New South Wales, Australia.
Passion fruit viral diseases pose a significant threat to Kenya's passion fruit industry. To unravel the complexity of these diseases, comprehensive virus surveys were conducted across major passion fruit-growing counties. Passion fruit woodiness disease symptoms, like fruit hardening, chlorotic mottling, and leaf distortion, were prevalent.
View Article and Find Full Text PDFJ Fungi (Basel)
July 2025
Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Zhongshan Biological Breeding Laboratory/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Agricultural College of Yangzhou University, Yangzhou 225009, China.
Sheath blight (ShB), caused by the necrotrophic fungus (), poses severe threats to global rice production. Developing a resistant variety with an ShB-resistance gene is one of most efficient and economical approaches to control the disease. Here, we identified a highly conserved chloroplast-localized stem-loop-binding protein encoding gene (), which shows great potential in developing an ShB-resistant variety.
View Article and Find Full Text PDFPhytopathology
August 2025
Cornell University AgriTech, Plant Pathology and Plant-Microbe Biology, Geneva, New York, United States;
Viruses of cultivated apple ( × ) are believed to be transmitted nearly exclusively via vegetative propagation, with few known biotic vectors and limited evidence of vertical transmission. To evaluate the seed transmission capabilities of six viruses and one viroid of apple, a large-scale seedling grow-out experiment was conducted using seeds harvested from 51 trees infected by several combinations of six viruses and one viroid. Virus detection via multiplex PCR-based amplicon sequencing followed by RT-qPCR validation demonstrated that citrus concave gum-associated virus and apple stem grooving virus were transmitted to seedlings at rates of 4.
View Article and Find Full Text PDFVirol J
August 2025
Research group Virology, Bacteriology and Phytoplasmology, Plant Protection Department, Agroscope, Switzerland.
Background: The Jerusalem sage () is a popular ornamental in Europe. In 2022, typical virus-like symptoms consisting of chlorotic rings and irregular patches were identified on leaves of this plant species in Lausanne, Switzerland.
Methods: High-throughput sequencing was used on symptomatic samples, which was followed by transmission electron microscopy, sap inoculations of indicator species, and RT-PCR analyses.
Plant Dis
August 2025
Kyungpook National University, Department of Plant Medicine, Daegu, Korea (the Republic of).
In Korea, the limited production and distribution of virus-free bulbs necessitate reliance on imported bulbs for daffodil () cultivation. Three viruses have been reported in daffodils in Korea, and quarantine measures target six viruses in imported bulbs (Kim and Jeong 2024; Kim et al. 2024).
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