RESULTS

(5)

FILTER

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish)

Longitudinal sections of diseased rhizomes with discolored vascular tissues.

Bacterial soft rot | Wasabi (Japanese horseradish)

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish) (Wasabia japonica)

PATHOGEN: Pectobacterium wasabiae

PATHOGEN SYNONYM: Erwinia carotovora subsp. wasabiae

SOURCE: M. Goto

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish)

Longitudinal section of rhizome with discolored vascular bundles (left), and rhizome with external symptoms (right).

Bacterial soft rot | Wasabi (Japanese horseradish)

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish) (Wasabia japonica)

PATHOGEN: Pectobacterium wasabiae

PATHOGEN SYNONYM: Erwinia carotovora subsp. wasabiae

SOURCE: M. Goto

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish)

Cross section of rhizome with dark, infected vascular bundles.

Bacterial soft rot | Wasabi (Japanese horseradish)

DISEASE: Bacterial soft rot

HOST: Wasabi (Japanese horseradish) (Wasabia japonica)

PATHOGEN: Pectobacterium wasabiae

PATHOGEN SYNONYM: Erwinia carotovora subsp. wasabiae

SOURCE: G. Rodriguez

DISEASE: Crown gall

HOST: Aspen

Aspen with large, encrusted gall.

Crown gall | Aspen

DISEASE: Crown gall

HOST: Aspen (Populus sp.)

PATHOGEN: Agrobacterium tumefaciens

PATHOGEN SYNONYM: Rhizobium sp.

SOURCE: S. Thomson

DISEASE: Pseudomonas leaf spot

HOST: Primrose

Leaf with brownish red spots and reddening of adjacent areas. Disease begins as small, water-soaked lesions that later coalesce into large necrotic spots.

Pseudomonas leaf spot | Primrose

DISEASE: Pseudomonas leaf spot

HOST: Primrose (Primula sp.)

PATHOGEN: Pseudomonas syringae pv. primulae

SOURCE: APS