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 Image Number K9393-1 |
In Beltsville, Maryland, ARS plant pathologist John Hartung examines quarantined sweet orange plants for symptoms of a strain of Xylella fastidiosa that causes heavy citrus losses in Brazil. The pathogen's genome— recently sequenced by the Brazilian research foundation FAPESP—was the first genome of a plant pathogen to be sequenced.
Photo by Keith Weller.
