A method for PCR diagnosis of impatiens necrotic spot virus is developed. Concentrated culture fluid with active L-lysine-α-oxidase (0.54 U/ml) from Trichoderma harzianum Rifai fungus producer strain F-180 inhibits vitally hazardous impatiens necrotic spot phytovirus.
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http://dx.doi.org/10.1007/s10517-016-3170-3 | DOI Listing |
Sci Rep
September 2024
USDA - Agricultural Research Service, 1636 East Alisal Street, Salinas, CA, 93905, USA.
The plant virus, Impatiens necrotic spot virus (INSV), is an economically important pathogen of vegetables, fruits, and ornamental crops. INSV is vectored by the western flower thrips, Frankliniella occidentalis, a small insect pest that is globally distributed. In recent years, INSV outbreaks have reached epidemic levels in the Salinas Valley of California-an agriculturally rich region where most of the lettuce (Lactuca sativa) is produced in the United States.
View Article and Find Full Text PDFPlant Dis
September 2024
USDA ARS, 1636 East Alisal Street, Salinas, Salinas, California, United States, 93905-3097.
Impatiens necrotic spot virus (INSV; Order Bunyavirales, Family Tospoviridae) is transmitted by several thrips species and has emerged as an important pathogen of lettuce (Lactuca sativa) in several countries (Beris et al., 2020 and Hasegawa & Del Pozo-Valdivia, 2023). In 2023, a total of 22,092 hectares of lettuce were planted in Mexico, with a total production of 523,739 tons (Agri-Food and Fisheries Information Service, 2024).
View Article and Find Full Text PDFPlant Dis
August 2024
North Carolina State University, Plant Pathology, 840 Main Campus Drive, Suite 1400, Partners II, RALEIGH, Raleigh, North Carolina, United States, 27695.
Impatiens necrotic spot virus (INSV) (Orthotospovirus impatiensnecromaculae) is a virus in the Order Bunyavirales and Family Tospoviridae. The virus is vectored by several species of thrips and is a serious pathogen of ornamentals and lettuce in the United States (Hasegawa & Del Pozo-Valdivia 2023; Daughtrey, M. L.
View Article and Find Full Text PDFSci Rep
June 2024
Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, China.
Viral diseases are becoming an important problem in Amorphophallus production due to the propagation of seed corms and their trade across regions. In this study, combined-High-Throughput Sequencing, RT-PCR, electron microscopy, and mechanical inoculation were used to analyze virus-like infected Amorphophallus samples in Yunnan province to investigate the distribution, molecular characterization, and diversity and evolution of Amorphophallus-infecting viruses including three isolates of dasheen mosaic virus and three orthotospoviruses: mulberry vein banding associated virus (MVBaV), tomato zonate spot virus (TZSV) and impatiens necrotic spot virus (INSV). The results showed that DsMV is the dominant virus infecting Amorphophallus, mixed infections with DsMV and MVBaV to Amorphophallus were quite common in Yunnan province, China.
View Article and Find Full Text PDFPlant Dis
December 2023
New Zealand Ministry for Primary Industries, 91821, 231 Morrin Rd St Johns, Auckland, Auckland, New Zealand, 1072;
Streptocarpus (Cape primrose, family Gesneriaceae) is a genus of plants native to Southern Africa commonly grown indoors for their foliage and trumpet-shaped flowers. In Aoteroa New Zealand (NZ) to date, no viruses have been reported to infect plants of the Gesneriaceae (Veerakone et al. 2015).
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