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 Floral and Nursery Plants Research: Washington, DC
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ARS Home Northeast Area Washington, D.C. National Arboretum Floral and Nursery Plants Research People & Locations







Ramon  Jordan

                                                                (PhD)
                        Floral and Nursery Plants Research

                        




                        
                        Research Plant Pathologist
                        Phone: (301) 504-5646
                        
                        
                        Fax: (Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsDetection, Biology, and Genomics of New and Emerging Viral and Bacterial Diseases of Ornamental Plants
                                                    In-House Appropriated
                                                                    (D)Accession Number: 441771Agreement Between the United States National Arboretum and the National Bonsai Foundation
                                                    Non-Funded Cooperative Agreement
                                                                    (N)Accession Number: 439189**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Genetic diversity among rose rosette virus isolates: a roadmap towards studies of gene function and pathogenicity
                                                        

- (Peer Reviewed Journal)Verchot, J., Herath, V., Jordan, R.L., Hammond, J. 2023. Genetic diversity among rose rosette virus isolates: a roadmap towards studies of gene function and pathogenicity. Pathogens. https://doi.org/10.3390/pathogens12050707.International trade and local control of disease in ornamental plants
                                                        

- (Review Article)Hammond, J., Huang, Q., Jordan, R.L., Meekes, E.T., Fox, A., Vazquez-Iglesias, I., Vaira, A., Copetta, A., Arimondo, O., Delmiglio, C. 2023. International trade and local control of disease in ornamental plants. Annual Review of Phytopathology. https://doi.org/10.1146/annurev-phyto-021621-114618.Rose Rosette Disease: A Diagnostic Guide
                                                        

- (Review Article)Claros, N.A., Shires, M., Mollov, D.S., Hammond, J., Jordan, R.L., Ochoa-Corona, F., Olson, J., Ong, K., Salamanca, R. 2022. Rose Rosette Disease: A Diagnostic Guide. Plant Health Progress. https://doi.org/10.1094/PHP-05-22-0047-DG.ICTV Virus Taxonomy Profile: Potyviridae 2022
                                                        

- (Peer Reviewed Journal)Inoue-Nagata, A., Jordan, R.L., Kreuze, J., Li, F., Lopez-Moya, J., Makinen, K., Ohshima, K., Wylie, S. 2022. ICTV Virus Taxonomy Profile: Potyviridae 2022. Journal of General Virology. 103:001738. https://doi.org/10.1099/jgv.0.001738.Create five new species in the genus Potyvirus (Patatavirales: Potyviridae)

- (Peer Reviewed Journal)Inoue-Nagata, A., Wylie, S., Jordan, R.L., Kreuze, J., Li, F., Lopez-Mayo, J., Makinen, K., Ohshima, K. 2022. Create five new species in the genus Potyvirus (Patatavirales: Potyviridae). Electronic Publication. https://doi.org/eletronic.publication.Create two new species in genus Pelarspovirus (Tolivirales: Tombusviridae)

- (Peer Reviewed Journal)Scheets, K., Jordan, R.L. 2021. Create two new species in genus Pelarspovirus (Tolivirales: Tombusviridae). Electronic Publication. https://doi.org/.First complete genome sequence of carnation latent virus, the type member of the genue Carlavirus
                                                        

- (Peer Reviewed Journal)Jordan, R.L., Korolev, E., Grinstead, S.C., Mollov, D.S. 2021. First complete genome sequence of carnation latent virus, the type member of the genue Carlavirus. Archives of Virology. 166:1501-1505. https://doi.org/10.1007/s00705-021-04999-y.A mixed infection of helenium virus S with two distinct isolates of butterbur mosaic virus, one of which has a major deletion in an essential gene
                                                        

- (Peer Reviewed Journal)Hammond, J., Reinsel, M.D., Grinstead, S.C., Lockhart, B., Jordan, R.L., Mollov, D.S. 2020. A mixed infection of helenium virus S with two distinct isolates of butterbur mosaic virus, one of which has a major deletion in an essential gene. Frontiers in Microbiology. https://doi.org/10.3389/fmicb.2020.612936.Bean common mosaic virus and bean common mosaic necrosis virus (Potyviridae)
                                                        

- (Book / Chapter)Jordan, R.L., Hammond, J. 2020. Bean common mosaic virus and bean common mosaic necrosis virus (Potyviridae). Encyclopedia of Virology. https://doi.org/10.1016/B978-0-12-809633-8.21293-4.Detection and first report of Beet ringspot virus in ornamental Oxalis in the United States
                                                        

- (Peer Reviewed Journal)Jordan, R.L., Mollov, D.S., Guaragna, M., Lockhart, B. 2019. Detection and first report of Beet ringspot virus in ornamental Oxalis in the United States. Plant Disease. 103:1800. https://doi.org/10.1094/PDIS-09-18-1680-PDN.Eriophyoid mites found on roses in the United States

- (Peer Reviewed Journal)Otero-Colina, G., Ochoa, R., Amrine, J., Hammond, J., Jordan, R.L., Bauchan, G.R. 2019. Eriophyoid mites found on roses in the United States. Journal of Environmental Horticulture. 36(4):146-153.Rose rosette disease: It all started with a small mite
                                                        

- (Peer Reviewed Journal)Bauchan, G.R., Otero-Colina, G., Hammond, J., Jordan, R.L., Ochoa, R. 2019. Rose rosette disease: It all started with a small mite. Acta Horticulturae. 1232(33):227-232. https://doi.org/10.17660/ActaHortic.2019.1232.33.Combating rose rosette disease US national project
                                                        

- (Peer Reviewed Journal)Byrne, D.H., Klein, P., Hall, C., Windham, M., Ochoa-Corona, F., Olson, J., Paret, M., Babu, M., Knox, G., Jordan, R.L., Hammond, J., Ong, K., Ochoa, R., Bauchan, G.R., Evans, T., Windham, A., Hale, F., Palma, M.A., Ribera, L., Pemberton, H.B. 2019. Combating rose rosette disease US national project. Acta Horticulturae. 1232:203-212. https://doi.org/10.17660/ActaHortic.2019.1232.30.Combating rose rosette disease: the disease, the virus and the development of new virus detection technologies

- (Proceedings)Jordan, R.L., Hammond, J., Ochoa-Corona, F., Olson, J., Paret, M., Babu, B., Ong, K., Byrne, D. 2018. Combating rose rosette disease: the disease, the virus and the development of new virus detection technologies. Southern Nursery Association Research Conference. 62:60-63. https://sna.org/resources/documents/18researchconferenceproceedings.pdf.Detection of Jasmine virus H and characterization of a second pelarspovirus infecting star jasmine (Jasminum multiflorum) and angelwing jasmine (J. nitidum) plants displaying virus-like symptoms
                                                        

- (Peer Reviewed Journal)Dey, K.K., Leite, M., Hu, J.S., Jordan, R.L., Melzer, M.J. 2018. Detection of Jasmine virus H and characterization of a second pelarspovirus infecting star jasmine (Jasminum multiflorum) and angelwing jasmine (J. nitidum) plants displaying virus-like symptoms. Archives of Virology. 163:3051-3058. https://doi.org/10.1007/s00705-018-3947-y.Advances in virus diagnostics

- (Abstract Only)First report of nerine latent virus in ornamental crinum in the United States
                                                        

- (Peer Reviewed Journal)Jordan, R.L., Wingert, M., Louden, C., Guaragna, M. 2018. First report of nerine latent virus in ornamental crinum in the United States. Plant Disease. 102:1469. doi.org/10.1094/PDIS-09-17-1512-PDN.Development of polyclonal and monoclonal antibodies to Rose rosette virus nucleoprotein
                                                        

- (Proceedings)Jordan, R.L., Guaragna, M., Hammond, J. 2018. Development of polyclonal and monoclonal antibodies to Rose rosette virus nucleoprotein. Acta Horticulture Proceedings. 1193:77-82.Complete nucleotide sequence of Clematis chlorotic mottle virus, a new member of the family Tombusviridae

- (Peer Reviewed Journal)Mclaughlin, M.S., Lockhart, B., Jordan, R.L., Denton, G., Mollov, D.S. 2017. Complete nucleotide sequence of Clematis chlorotic mottle virus, a new member of the family Tombusviridae. Archives of Virology. 162(5):1373-1379.Meet (and beat) ROSE ROSETTE

- (Popular Publication)Hammond, J., Jordan, R.L. 2016. Meet (and beat) ROSE ROSETTE. Arbor Friends. Summer 2016, pages 8-9.Development of single chain variable fragment (scFv) antibodies against surface proteins of ‘Ca. Liberibacter asiaticus’
                                                        

- (Peer Reviewed Journal)Yuan, Q., Jordan, R.L., Brlansky, R.H., Minenkova, O., Hartung, J.S. 2015. Development of single chain variable fragment (scFv) antibodies against surface proteins of ‘Ca. Liberibacter asiaticus’. Journal of Microbiological Methods. 122:1-7.Resistance to Fusarium oxysporum f. sp. gladioli in transgenic Gladiolus plants expressing either a bacterial chloroperoxidase or fungal chitinase genes
                                                        

- (Peer Reviewed Journal)Kamo, K.K., Lakshman, D.K., Pandey, R., Guaragna, M.A., Okubara, P.A., Rajasekaran, K., Cary, J.W., Jordan, R.L. 2015. Resistance to Fusarium oxysporum f. sp. gladioli in transgenic Gladiolus plants expressing either a bacterial chloroperoxidase or fungal chitinase genes. Plant Cell Tissue And Organ Culture. 124:541.Development of single chain variable fragment (scFv) antibodies against Xylella fastidiosa subsp. pauca by phage display
                                                        

- (Peer Reviewed Journal)Yuan, Q., Jordan, R.L., Brlansky, R.H., Minenkova, O., Hartung, J.S. 2015. Development of single chain variable fragment (scFv) antibodies against Xylella fastidiosa subsp. pauca by phage display. Journal of Microbiological Methods. 117:148-154.Create the genus Pelarspovirus in the family Tombusviridae

- (Peer Reviewed Journal)Scheets, K., Jordan, R.L., White, A., Hernandez, C. 2016. Create the genus Pelarspovirus in the family Tombusviridae. Electronic Publication. talk.ictvonline.org/files/ictv_official_taxonomy_updates_since_the_8th_report/m/plant-officical/5847.Pelarspovirus, a proposed new genus in the family Tombusviridae

- (Peer Reviewed Journal)Scheets, K., Jordan, R.L., White, A., Hernandez, C. 2015. Pelarspovirus, a proposed new genus in the family Tombusviridae. Archives of Virology. 160:2385-2393.Create four new unassigned species in the family Tombusviridae
                                                        

- (Peer Reviewed Journal)Scheets, K., Hernandez, C., Jordan, R.L., White, A. 2014. Create four new unassigned species in the family Tombusviridae. Archives of Virology. DOI:10.1007/s00705-015-2500-5.Progress in development of a Universal Plant Virus Micrarray for the detection and identification of plant viruses

- (Peer Reviewed Journal)Hammond, J., Henderson, D.C., Bagewadi, B., Jordan, R.L., Perr, K., Melcher, U., Wang, D., Fischer, K., Fauquet, C. 2015. Progress in development of a Universal Plant Virus Micrarray for the detection and identification of plant viruses. Acta Horticulturae. 1072:149-156.A previously undescribed potyvirus isolated and characterized from arborescent Brugmansia

- (Peer Reviewed Journal)Damsteegt, V.D., Stone, A.L., Smith, O.P., Mcdaniel, L., Sherman, D.J., Dardick, C.D., Hammond, J., Jordan, R.L., Schneider, W.L. 2013. A previously undescribed potyvirus isolated and characterized from arborescent Brugmansia. Archives of Virology. 158:1235-1244.First report of Nerine yellow stripe virus in Amaryllis in the United States

- (Peer Reviewed Journal)Guaragna, M.A., Lamborn, J., Hammond, J., Schadewijk, T., Jordan, R.L. 2013. First report of Nerine yellow stripe virus in Amaryllis in the United States. Plant Disease. 97(10):1389.Gladiolus plants transformed with single-chain variable fragment antibodies to Cucumber mosaic virus

- (Peer Reviewed Journal)Kamo, K.K., Aebig, J., Guaragna, M.A., James, C., Hsu, H., Jordan, R.L. 2012. Transgenic Gladiolus plants containing single-chain fragment antibodies to Cucumber mosaic virus. Plant Cell Tissue And Organ Culture. 110:13-21.Virus diseases of ornamentals

- (Book / Chapter)Hammond, J., Jordan, R.L., Vaira, A. 2011. Virus diseases of ornamentals. Encyclopedia of Life Support Systems. Available: http://www.eolss.net.Selection of single chain variable fragments (scFv) against Xylella fastidiosa subsp. pauca by phage display

- (Abstract Only)Yuan, Q., Jordan, R.L., Brlansky, R.H., Minenkova, O., Hartung, J.S. 2010. Selection of single chain variable fragments (scFv) against Xylella fastidiosa subsp. pauca by phage display. Phytopathology 100(6):S43.Development of conventional monoclonal antibody and recombinant antibody (scFv) against Candidatus Liberibacter asiaticus

- (Abstract Only)Yuan, Q., Jordan, R.L., Bohannon, R., Brlansky, R.H., Minenkova, O., Hartung, J.S. 2010. Development of conventional monoclonal antibody and recombinant antibody (scFv) against Candidatus Liberibacter asiaticus. Phytopathology 100(6):S43.Resistance to Cucumber mosaic virus in Gladiolus plants transformed with either a defective replicase of coat protein subgroup II gene from Cucumber mosaic virus

- (Peer Reviewed Journal)Kamo, K., Jordan, R., Guaragna, M.A., Hsu, H.T., Ueng, P. 2010. Resistance to cucumber mosaic virus in Gladiolus plants transformed with either a defective replicase or coat protein subgroup II gene from Cucumber mosaic virus. Plant Cell Reports. 29:695-704.Detection and molecular characterizations of new and emerging potyviruses of ornamental plants

- (Peer Reviewed Journal)Jordan, R.L., Guaragna, M.A., Putnam, M. 2011. Detection and molecular characterizations of new and emerging potyviruses of ornamental plants. Acta Horticulturae. 901:159-166.FIRST REPORT OF A NEW POTYVIRUS, TRICYRTIS VIRUS Y, AND LILY VIRUS X POTEXVIRUS, IN TRICYRTIS FORMOSANA IN THE UNITED STATES

- (Peer Reviewed Journal)Jordan, R.L., Guaragna, M.A., Van Buren, T., and Putnam, M.L. 2008. First report of a new potyvirus, Tricyrtis virus Y, and Lily virus X Potexvirus, in Tricyrtis formosana in the United States. Plant Disease. 92:648.Antibodies in Plants

- (Book / Chapter)Kamo, K., Jordan, R.L., Hsu, H-T., and Hu, J. 2008. Antibodies in plants. Floriculture, Ornamental and Plant Biotechnology. 5:311-318.Development of a One-Step Immunocapture Real-Time TaqMan RT-PCR Assay for the Broad Spectrum Detection of Pepino Mosaic Virus

- (Peer Reviewed Journal)Ling, K., Wechter, W.P., Jordan, R.L. 2007.  Development of a One-Step Immunocapture Real-Time TaqMan RT-PCR Assay for the Broad Spectrum Detection of Pepino Mosaic Virus.  Journal of Virological Methods 144:65-72.Bean Common Mosaic Virus and Bean Common Mosaic Necrosis Virus (Genus Potyvirus; Potyviridae)

- (Book / Chapter)Jordan, R., Hammond, J. 2008. Bean common mosaic virus and bean common mosaic necrosis virus. Encyclopedia of Virology, 3rd Ed. (B.W.J. Mahy and M.H.V. Van Regenmortel, Eds). 1:288-295.MOLECULAR CHARACTERIZATION OF SEVERAL NEW AND EMERGING POTYVIRUSES OF ORNAMENTAL PLANTS

- (Abstract Only)Jordan, R.L., Guaragna, M.A. 2006. Molecular characterization of several new and emerging potyviruses of ornamental plants. Phytopathology. 96:S56.TRANSGENIC PLANTS OF GLADIOLUS CONTAINING THE COAT PROTEIN AND REPLICASE GENES OF CUCUMBER MOSAIC VIRUS

- (Abstract Only)Kamo, K.K., Ueng, P.P., Aebig, J.A., Hsu, H., Guaragna, M.A., Jordan, R.L. 2006. Transgenic plants of gladiolus containing the coat protein and replicase genes of cucumber mosaic virus. [abstract]. Society for In Vitro Biology Proceedings. 42:44-A.TRANSGENIC APPROACHES TO DISEASE RESISTANCE IN ORNAMENTAL CROPS

- (Peer Reviewed Journal)Hammond, J., Hsu, H.T., Huang, Q., Jordan, R.L., Kamo, K.K., Pooler, M.R. 2006. Transgenic approaches to disease resistance in ornamental crops. Journal of Crop Improvement. 17:155-210.FIRST MOLECULAR EVIDENCE OF THE OCCURRENCE OF A PEA MOSAIC STRAIN OF BEAN YELLOW MOSAIC VIRUS IN VERBENA X HYBRIDA

- (Peer Reviewed Journal)Guaragna, M.A., Jordan, R.L., Putnam, M. 2006. First molecular evidence of the occurrence of a pea mosaic strain of Bean yellow mosaic virus in Verbena x hybrida. Acta Horticulture. 722:305-312.DETECTION AND CHARACTERIZATION OF TWO PREVIOUSLY UNDESCRIBED POTYVIRUSES IN THE TERRESTRIAL ORCHID SPIRANTHES CERNUA

- (Peer Reviewed Journal)Guaragna, M.A., Ndum, O., Jordan, R.L. 2006. Detection and characterization of two previously undescribed potyviruses in the terrestrial orchid Spiranthes cernua. Acta Horticuture. 722:209-218.PEPINO MUSAIC VIRUS:  VARIABILITY IN U.S. ISOLATES

- (Abstract Only)Maroon Lango, C.J.M., Guaragna, M.A., Jordan, R.L., Hammond, J., Bandla, M., Marquardt, S., Stommel, J.R. 2005.  Pepino mosaic virus:  Variability in U.S. isolated [abstract].  Hortscience 40:1089.DETECTION AND CHARACTERIZATION OF US ISOLATES OF PEPINO MOSACI VIRUS

- (Peer Reviewed Journal)Maroon-Lango, C.J., Guaragna, M.A., Jordan, R.L., Hammond, J., Bandla, M., Marquardt, S.K. 2005. Two unique US isolates of Pepino mosaic virus from a limited source of pooled tomato tissue are distinct from a third (European-like) US isolate. Archives of Virology. 150:1187-1201.DETECTION AND CHARACTERIZATION OF EUPHORBIA RINGSPOT POTYVIRUS

- (Abstract Only)Guaragna, M.A., Ambrose, J., Jordan, R.L. 2004. Detection and characterization of euphorbia ringspot potyvirus. American Phytopathological Society. 94:S36.FIRST REPORT OF BEAN YELLOW MOSAIC VIRUS (PEA MOSAIC STRAIN) IN VERBENA X HYBRIDA

- (Peer Reviewed Journal)Guaragna, M.A., Jordan, R.L., Putnam, M.L. 2004. First report of bean yellow mosaic virus (pea mosaic strain) in verbena x hybrida. Plant Disease. 88(5):574.THE COMPLETE NUCLEOTIDE SEQUENCE, GENOME ORGANIZATION, AND SPECIFIC DETECTION OF BEET MOSAIC VIRUS

- (Peer Reviewed Journal)Nemchinov, L.G., Hammond, J., Jordan, R.L., Hammond, R. 2004. The complete nucleotide sequence, genome organization, and specific detection of beet mosaic virus. Archives of Virology. 149:1201-1204.FAMILY POTYVIRIDAE

- (Book / Chapter)Berger, P.H., Adams, M.J., Brunt, A.A., Hammond, J., Hill, J.H., Jordan, R.L., Kashiwazalci, S., Rybicki, E., Spence, N., Stenger, D.C. 2005. Family potyviridae. Taxonomy of Viruses. In The International Committee on the Taxonomy of Viruses, 8th Report.  2005.  Eds. C. M. Fauquet, Fauquet, C. M., Mayo, M.A., Maniloff, J. Desselberger, U., and Ball, L.A.  Elsevier/Academic Press, London. p 819-841.HOST RANGE AND CHARACTERIZATION OF SUNFLOWER MOSAIC POTYVIRUS

- (Peer Reviewed Journal)UNDESCRIBED POTYVIRUS OF THE BEAN YELLOW MOSAIC VIRUS SUBGROUP IN          SESBANIA SPECIOSA GERMPLASM

- (Peer Reviewed Journal)


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