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   What are Phytoplasmas

 Symptoms glossary

 Disease pictures

 Phytoplasmas Spread

 Insect Vectors

 Classification NEW!


 Taxonomy NEW!

 'Candidatus species'NEW!





Welcome to the
Phytoplasma Resource Center

hosted by the
Molecular Plant Pathology Laboratory (MPPL)

Cone flower infected with phytoplasma

Phytoplasma: diseases, disease pictures, symptoms, classification, databases, detection and identification, phylogeny, taxonomy, and Genomics.

Dr. Robert E. Davis, Research Leader, robert.davis@ba.ars.usda.gov
United States Department of Agriculture Building 004, BARC-West
10300 Baltimore Ave. Beltsville, MD. 20705

Should you find these data useful and wish to reference it, please acknowledge the Phytoplasma Resource Center and R.E. Davis, J. Shao, I.-M. Lee, W. Wei, and Y. Zhao.

If possible, please send us both the literature citation once published and a reprint or PDF file of the publication.

Please retain photo credits on pictures used from this site.

Thanks to Robert E. Davis, Jonathan Shao, Ing-Ming Lee, Wei Wei, and Yan Zhao. Molecular Plant Pathology Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Beltsville, MD 20705

Designed and created by Jonathan Shao, shaoj@ba.ars.usda.gov

Visitors to this site during 2013:         00484




 iiPhyclassifier up and running updated July 9 , 2015 at 2:25 EST
taxonomic assignment
group/subgroup classification
virtual gel analysis
pattern similarity coefficients.

In silico RFLP
analysis & automated
calculation of similarity


 Grapevine Yellows

 Phytoplasma primers
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