RESULTS

(9)

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DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion

Dark, rotted areas of stalk and leaves caused by systemic invasion of the pathogen.

Bacterial flower stalk and leaf necrosis | Onion

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion (Allium cepa)

PATHOGEN: Pseudomonas marginalis pv. marginalis

SOURCE: S. Mohan

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion

Gray-brown rot of onion after inoculation. Disease starts as small, water-soaked lesions that later develop into slimy, gray-brown rot. The disease progresses downward from the stalk and may rot the entire bulb.

Bacterial flower stalk and leaf necrosis | Onion

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion (Allium cepa)

PATHOGEN: Pseudomonas marginalis pv. marginalis

SOURCE: R. Gitaitis

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion

Leaves with necrosis and rot. The common name for this disease is the same as those used for two other diseases. Also, another common name for this disease is bacterial soft rot.

Bacterial flower stalk and leaf necrosis | Onion

DISEASE: Bacterial flower stalk and leaf necrosis

HOST: Onion (Allium cepa)

PATHOGEN: Pseudomonas marginalis pv. marginalis

SOURCE: S. Mohan

DISEASE: Pink disease

HOST: Pineapple

Infected pineapple slices; effect of heating (right) and not heating (left).

Pink disease | Pineapple

DISEASE: Pink disease

HOST: Pineapple (Ananas comosus)

PATHOGEN: Tatumella citrea

PATHOGEN SYNONYM: Pantoea citrea

SOURCE: K. Rohrbach, A. Alvarez

DISEASE: Pink disease

HOST: Pineapple

Two clones (A and D) showing different stages of infection. Second and fourth fruits (left to right) have been heated. Disease originally attributed to Gluconobacter oxydans and Enterobacter agglomerans and later to Pantoea citrea.

Pink disease | Pineapple

DISEASE: Pink disease

HOST: Pineapple (Ananas comosus)

PATHOGEN: Tatumella citrea

PATHOGEN SYNONYM: Pantoea citrea

SOURCE: K. Rohrbach

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Shot-hole stage of X-disease.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

X-disease causes rosettes and premature loss of leaves.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Chokecherry with stunted shoots, red leaves, and rosettes.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair

DISEASE: X-disease (Eastern X)

HOST: Chokecherry

Chokecherry with red leaves, rosettes, and bud loss.

X-disease (Eastern X) | Chokecherry

DISEASE: X-disease (Eastern X)

HOST: Chokecherry (Prunus virginiana)

PATHOGEN: 'Candidatus Phytoplasma pruni'

PATHOGEN SYNONYM: Phytoplasma X-disease group

SOURCE: W. Sinclair