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Tropaeolum Majus) in Hawaii | Plant Disease 1/4/19, 1�43 PM First Report of Bean Yellow Mosaic Virus Infecting Nasturtium (Tropaeolum majus) in Hawaii | Plant Disease 1/4/19, 143 PM Welcome Sign in | Register | Mobile Journals Home Books Home APS Home IS-MPMI Home My Profile Subscribe Search Advanced Search Help Share Editor-in-Chief: Alexander V. Karasev Published by The American Phytopathological Society About the cover for January 2019 Home > Plant Disease > Table of Contents > Full Text HTML Quick Links Previous Article | Next Article ISSN: 0191-2917 Add to favorites e-ISSN: 1943-7692 January 2019, Volume 103, Number 1 E-mail to a colleague SEARCH Page 168 https://doi.org/10.1094/PDIS-06-18-1082-PDN Alert me when new articles Enter Keywords cite this article MPMI DISEASE NOTES Download to citation manager Phytobiomes Phytopathology Related articles Plant Disease First Report of Bean Yellow Mosaic Virus found in APS Journals Plant Health Progress Infecting Nasturtium (Tropaeolum majus) in Hawaii Advanced Search Article History Issue Date: 17 Dec 2018 D. Wang , Department of Plant and Environmental Protection Sciences, University of Hawaii at Published: 2 Nov 2018 Resources Manoa, Honolulu, 96822, U.S.A., and Research Center of Environment and Non-Communicable Disease, School of Public Health, China Medical University, Shenyang 110122, China; J. Ocenar, First Look: 21 Aug 2018 Subscribe Hawaii Department of Agriculture, Plant Pest Control Branch, Honolulu, 96814, U.S.A.; I.I. Hamim Accepted: 17 Aug 2018 About Plant Disease , Department of Plant and Environmental Protection Sciences, University of Hawaii at Manoa, Honolulu, 96822, U.S.A., and Department of Plant Pathology, Bangladesh Agricultural University, First Look Mymensingh-2202, Bangladesh; W. B. Borth, Department of Plant and Environmental Protection Most Downloaded Sciences, University of Hawaii at Manoa, Honolulu, 96822, U.S.A.; M. T. Fukada, Hawaii Articles Department of Agriculture, Plant Pest Control Branch, Honolulu, 96814, U.S.A.; M. J. Melzer , Journals Impact Department of Plant and Environmental Protection Sciences, University of Hawaii at Manoa, Honolulu, 96822, U.S.A.; J. Y. Suzuki, M. M. Wall, and T. Matsumoto, USDA-ARS, Daniel K. Submit a Manuscript Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI 96720, U.S.A.; G. F. Sun,† Customer Care Research Center of Environment and Non-Communicable Disease, School of Public Health, China About My Password Medical University, Shenyang 110122, China; M. Ko, Hawaii Department of Agriculture, Plant Pest Control Branch, Honolulu, 96814, U.S.A.; and J. S. Hu,† Department of Plant and Rights and Permissions Environmental Protection Sciences, University of Hawaii at Manoa, Honolulu, 96822, U.S.A. Plagiarism and Ethics + Funding Advertise Citation Open Access Open Access. ORCID Registry https://apsjournals.apsnet.org/doi/full/10.1094/PDIS-06-18-1082-PDN Page 1 of 3 First Report of Bean Yellow Mosaic Virus Infecting Nasturtium (Tropaeolum majus) in Hawaii | Plant Disease 1/4/19, 143 PM Garden nasturtium (Tropaeolum majus L.) is an herbaceous annual plant commonly used as a garden ornamental, culinary herb, or a medicinal plant. It has become naturalized in many locations and is currently considered an alien invader in New Zealand, Lord Howe Island, and Hawaii (U.S. Forest Service 2012). Bean yellow mosaic virus (BYMV) is an aphid-transmitted nonpersistent potyvirus with a wide host range (Parrella and Lanave 2009). In February 2018, we observed nasturtium plants exhibiting severe chlorotic mosaic symptoms at the Kula Botanical Gardens on Maui, HI (20°44′40.01″ N, 156°19′03.00″ W). We tested six samples that had severe yellow mosaic and leaf distortion symptoms and three leaves from nonsymptomatic plants using potyvirus-specific ELISA (Agdia, Elkhart, IN) and universal potyvirus-specific reverse transcription polymerase chain reaction (RT-PCR) with potyvirus nuclear inclusion body (NIb) primers NIb2F and NIb3R (Zheng et al. 2010). All of the symptomatic nasturtium samples tested positive for potyvirus infection in both tests, whereas three nonsymptomatic nasturtium leaves tested negative in both tests. To identify the specific potyvirus involved, amplicons (309 bp) of the NIb region that were generated by RT-PCR using universal potyvirus-specific primers were sequenced (accession MH422546). BLASTn analysis of the sequences showed that this virus shared 93% nucleotide identity with a BYMV isolate from Australia (HG970862), and BLASTx analysis showed it shared 93% amino acid identity with a polyprotein of BYMV isolate from Australia (CDO67686). Two additional sets of PCR primers were used to further characterize the isolate: BYMV NIb-specific primers BYMV-NIb-3 (5′-CCACTGTTATTCCCTTTAAAC-3′) and BYMV- NIb-5 (5′-AATAAGTTCTACAGTTTGCACC-3′), and BYMV coat protein (CP)-specific primers BYMV-CP-3 and BYMV-CP-5 (Wang et al. 2017). BLASTn analysis of the 257-bp NIb amplicon (accession MH422547) shared 94% identity to an Australian isolate of BYMV (HG970847), and the 595-bp CP amplicon (accession MH422548) shared 98% identity to another Australian isolate of BYMV (HG970860). BLASTx analysis of the 257-bp NIb amplicon shared 93% identity to an Australian isolate polyprotein of BYMV (AHQ95554), and the 595-bp CP amplicon shared 98% identity to another Japan isolate polyprotein of BYMV (BAA93683). All six symptomatic samples also tested positive for BYMV by triple-antibody sandwich ELISA using a BYMV-specific antibody (DSMZ, Braunschweig, Germany). From March to June 2018, 24 additional nasturtium samples were collected from two different locations on Maui, and all tested positive for BYMV infection by RT-PCR and ELISA. All of the symptomatic nasturtium samples tested positive for BYMV infection in both tests, while three nonsymptomatic nasturtium leaves from other plants tested negative in both tests. To our knowledge, this is the first report of BYMV infecting nasturtium plants in Hawaii. Nasturtium is a widely grown herbaceous ornamental in Hawaii. It could be harboring BYMV in the off-season and moving it to cultivated legume plants. Therefore, further study is needed to determine whether legume aphids can transmit BYMV from nasturtium to healthy legume plants. In addition, further studies on the distribution of BYMV-infected nasturtium and identification of other BYMV-infected plants in the Hawaiian Islands are needed. References:: Section: Choose Parrella, G., and Lanave, C. 2009. Arch. Virol. 154:1689. https://doi.org/10.1007/s00705-009-0485-7 [Crossref] [ISI] [Google Scholar] U.S. Forest Service. 2012. Pacific Islands Ecosystems at Risk (PIER), version 201230318.26, http://www.hear.org/pier [Google Scholar] Wang, Y., et al. 2017. Plant Dis. 101:1557. https://doi.org/10.1094/PDIS-01-17-0091-PDN [Abstract] [Google Scholar] Zheng, L., et al. 2010. Plant Pathol. 59:211. https://doi.org/10.1111/j.1365- 3059.2009.02201.x [Crossref] [ISI] [Google Scholar] Funding: The research was supported in part by the USDA National Institute of Food and Agriculture, Hatch HAW09025-H (1001478), and the USDA Agricultural Research Service (58- 5320-4-012). This work was also supported by the United States Agency for International Development, as part of the Feed the Future initiative, under the CGIAR Fund, award number BFS- G-1100002, and the predecessor fund of the Food Security and Crisis Mitigation II grant, award https://apsjournals.apsnet.org/doi/full/10.1094/PDIS-06-18-1082-PDN Page 2 of 3 First Report of Bean Yellow Mosaic Virus Infecting Nasturtium (Tropaeolum majus) in Hawaii | Plant Disease 1/4/19, 143 PM number EEM-G-0004-00013. Citation Journals Home Books Home APS Home IS-MPMI Home Contact Us Permissions Privacy Copyright The American Phytopathological Society https://apsjournals.apsnet.org/doi/full/10.1094/PDIS-06-18-1082-PDN Page 3 of 3.
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