Causal Role of Xylella fastidiosa in Oleander Leaf Scorch Disease.

  title={Causal Role of Xylella fastidiosa in Oleander Leaf Scorch Disease.},
  author={Alexander H. Purcell and Shelley R. Saunders and Mavis Date-Chong Hendson and M E Grebus and Michael J Henry},
  volume={89 1},
ABSTRACT A lethal leaf scorch disease of oleander (Nerium oleander) appeared in southern California in 1993. A bacterium, Xylella fastidiosa, was detected by culturing, enzyme-linked immunoassay, and polymerase chain reaction in most symptomatic plants but not in symptomless plants or negative controls. Inoculating oleanders mechanically with X. fastidiosa cultures from diseased oleanders caused oleander leaf scorch (OLS) disease. The bacterium was reisolated from inoculated plants that became… CONTINUE READING

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