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Dalmatian Toadflax (Linaria dalmatica): New Host for Cucumber Mosaic Virus

Published online by Cambridge University Press:  20 January 2017

Courtney L. Pariera Dinkins ,
Sue K. Brumfield ,
Robert K. D. Peterson ,
William E. Grey  and
Sharlene E. Sing
Courtney L. Pariera Dinkins*
Affiliation:
Department of Land Resources & Environmental Sciences, Montana State University, Bozeman, MT 59717
Sue K. Brumfield
Affiliation:
Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT 59717
Robert K. D. Peterson
Affiliation:
Department of Land Resources & Environmental Sciences, Montana State University, Bozeman, MT 59717
William E. Grey
Affiliation:
Department of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT 59717
Sharlene E. Sing
Affiliation:
Department of Land Resources & Environmental Sciences, Montana State University, Bozeman, MT 59717
*
Corresponding author's E-mail: mortney17@hotmail.com
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Abstract

To date, there have been no reports of Dalmatian toadflax serving as a host for cucumber mosaic virus (CMV). Infestations of Dalmatian toadflax may serve as a reservoir of CMV, thereby facilitating aphid transmission of CMV to both agricultural crops and native plants. The goal of this study was to determine whether Dalmatian toadflax is a host for CMV. Dalmatian toadflax seedlings were randomly assigned to two treatments (18 replicates/treatment): no inoculation (control) and inoculation with CMV (Fast New York strain). The Dalmatian toadflax seedlings were inoculated by standard mechanical methods and tested for the presence of CMV using enzyme-linked immunosorbent assay (ELISA). Ten of the 18 CMV-inoculated toadflax plants tested positive for the virus; 6 of the 18 displayed systemic mosaic chlorosis and leaf curling. All control plants tested negative. Transmission electron microscopy obtained from CMV-positive plants confirmed the presence of CMV based on physical properties. To verify CMV infestation, tobacco plants were assigned to the following treatments (six replicates/treatment): no inoculation (control), CMV-negative (control) inoculation, and a CMV-positive inoculation. Plants were inoculated by standard methods. Five of the 6 tobacco plants treated with the CMV-positive inoculum tested positive for CMV using ELISA. All control plants tested negative for the virus.

Keywords

Dalmatian toadflax, Linaria dalmatica (L.) Mill. LINDAtobacco, Nicotiana tabacum L.cucumber mosaic virusInvasive speciesrisk assessmentCMV Fast New York strainAgdia Immunostrip
Type
Research
Information
Weed Technology , Volume 21 , Issue 1 , March 2007 , pp. 41 - 44
Copyright
Copyright © Weed Science Society of America 

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References

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