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Bacterial wilt of tomato

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Author: Patrice G. Champoiseau and Timur M. Momol of University of Florida
Reviewers: Caitilyn Allen of University of Wisconsin; Jeffrey B. Jones and Carrie Harmon of University of Florida
Publication date: September 12, 2008. Revised April 4, 2009
Project title: Ralstonia solanacearum race 3 biovar 2: Detection, exclusion, and analysis of a select agent pathogen
Supported by: The United States Department of Agriculture - National Research Initiative Program (2007-2010)



Photo 1. Symptom of bacterial wilt of tomato caused by R. solanacearum showing wilting of leaves at the end of plant branch
(Photo courtesy of Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org)
   
Photo 2. Symptom of bacterial wilt of tomato caused by R. solanacearum showing wilting of foliage and stunting of plant
(Photo courtesy of C. Allen, University of Wisconsin)
   
Photo 3. Symptom of bacterial wilt of tomato caused by R. solanacearum showing collapse of young stem after artificial inoculation of the plant
(Photo courtesy of P. Champoiseau, University of Florida)
   
Photo 4. Brown discoloration of stem tissues caused by R. solanacearum
(Photo courtesy of Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org)
   
Photo 5. Bacterial ooze from freshly-cut section of a geranium stem infected by R. solanacearum
(Photo courtesy of M. Daughtrey, Cornell University)
   
Photo 6. Bacterial streaming in clear water from stem cross-section of plant infected by R. solanacearum
(Photo courtesy of University of Georgia, Plant Pathology Extension)
   
Photo 7. Virulent (bottom) and non-virulent (top) colonies of R. solanacearum on CPG agar growth medium
(Photo courtesy of P. Champoiseau, University of Florida)
   
Photo 8. Virulent colonies of R. solanacearum on TZC agar medium
(Photo courtsey of P. Champoiseau, University of Florida)
   
Photo 9. Bittersweet or woody nightshade (Solanum dulcamara). Key features for identification
(Photo courtesy of J. Elphinstone, Central Science Laboratory, York, UK, Crown Copyright)
   


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