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The Incidence of Virus Diseases in Rehmannia glutinosa in Korea
Res. Plant Dis. 2019;25:38-42
Published online March 31, 2019
© 2019 The Korean Society of Plant Pathology.

Sun-Jung Kwon*, Ju-Yeon Yoon, In-Sook Cho, and Gug-Seoun Choi

Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science, RDA, Wanju 55365, Korea
Tel: +82-63-238-6323, Fax: +82-63-238-6305, E-mail: sjkwon2448@korea.kr
Received February 27, 2019; Revised March 15, 2019; Accepted March 16, 2019.
cc This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
While rehmannia (Rehmannia glutinosa Libosch) was identified as a host of at least five viruses, including Rehmannia mosaic virus (ReMV), Youcai mosaic virus (YoMV), Broad bean wilt virus 2 (BBWV2), Plantago asiatica mosaic virus (PlAMV), and Rehmannia virus 1 (ReV1), viral incidence surveys have not been performed yet in rehmannia fields in Korea. In this study, we performed field surveys during 2017-2018 to investigate the incidence of 5 major viruses in rehmannia. A total of 145 symptomatic samples were collected from the rehmannia fields in major cultivation areas of Korea. Molecular diagnosis assays showed that all the collected leaf samples were infected with more than two viruses. Particularly, two species of Tobamovirus, ReMV and YoMV, were detected in all the samples. In addition, our analysis showed that the root stocks of 4 rehmannia cultivars were infected with at least two viruses. Since rehmannia is propagated by vegetative propagation, it is highly important to produce virus-free root stocks of rehmannia to control virus diseases in rehmannia.
Keywords : Field survey, Incidence, Rehmannia glutinosa, Viruses


March 2019, 25 (1)