New Variant of Little cherry virus Associated with Little Cherry Disease of Sweet Cherry in British Columbia, Canada

Plant Disease
M BernardyG Jesperson

Abstract

Little cherry disease (LChD) occurs in most cherry growing areas in the world. Infection of sensitive cultivars results in small fruit with poor color, angular shape, and insipid flavor. Three viruses associated with LCD have been described: (i) Little cherry virus-1 (LChV-1) first found and described in Germany (4); (ii) LChV-2 an isolate obtained from the United States (2); and (iii) LChV-3 first found and described in British Columbia (1). Despite similarities in symptom development in orchard trees and woody indexing, the three viruses have distinct molecular sequences (3). LChV-2 and -3 share greater homology with each other than either does with LChV-1. For many years, the British Columbia Ministry of Agriculture, Fisheries and Food (BCMAFF) in conjunction with Agriculture and Agri-Food Canada, Pacific Agri-Food Research Centre (AAFC-PARC) has conducted a survey to monitor the incidence and spread of LChD in the Okanagan and Kootenay valleys of British Columbia, Canada. Until recently, testing for LChD used woody indexing on indicator trees, Prunus avium cv. Lambert (fruit symptoms) and cvs. Canindex1 and Sam (foliar symptoms). Recently, incidence of LChD has been evaluated using double-antibody sandwich enzyme-linked imm...Continue Reading

Citations

Sep 14, 2019·Microbiology Resource Announcements·Dongzi ZhuQingzhong Liu

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