Site Logo
ARS Home About Us Helptop nav spacerContact Us En Espanoltop nav spacer
   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.

**This website and all associated pages will not be updated durinng a lapse in federal funding. Content on this website will not be current or maintained until funding issues have been resolved.**

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:        




 iiPhyclassifier back up and running - August 2nd , 2022
taxonomic assignment
group/subgroup classification
virtual gel analysis
pattern similarity coefficients.

In silico RFLP
analysis & automated
calculation of similarity


 Grapevine Yellows

 Phytoplasma primers
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | FirstGov | White House