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United States Department of Agriculture

Agricultural Research Service

Research Project: EMERGING DISEASES OF CITRUS, VEGETABLES, AND ORNAMENTALS

Location: Subtropical Plant Pathology Research

Title: Emergence and impact of two tospoviruses in Florida

Authors
item Webster, Craig
item Frantz, Galen -
item Mellinger, H -
item Mcavoy, Eugene -
item Funderburk, Joseph -
item Adkins, Scott

Submitted to: American Phytopathology Society
Publication Type: Abstract Only
Publication Acceptance Date: April 15, 2013
Publication Date: June 1, 2013
Citation: Webster, C.G., Frantz, G., Mellinger, H.C., Mcavoy, E., Funderburk, J., Adkins, S.T. 2013. Emergence and impact of two tospoviruses in Florida. American Phytopathology Society. 1:1.

Technical Abstract: A unique strain of Groundnut ringspot virus (GRSV), which has undergone genome reassortment with, and contains the medium RNA segment of, Tomato chlorotic spot virus (TCSV) was identified in tomato in south Florida in late 2009. A typical (non-reassorted) strain of TCSV was reported from tomato in this same area in 2012. The known geographic range of both GRSV and TCSV has expanded since their initial discovery in Florida. The potential for these newly established tospoviruses to spread to other important crop and weed hosts was examined by mechanical inoculation of plants in multiple families in the greenhouse. Concurrent field surveys have been used to complement the experimental host range studies to identify natural hosts for GRSV and TCSV. Combined results of greenhouse and field studies demonstrate that solanaceous plant species are most commonly infected, and several new host species have been identified. Both GRSV and TCSV, and the related Tomato spotted wilt virus, are now widespread in peninsular Florida. The potential impacts of these viruses are being evaluated.

Last Modified: 7/22/2014
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