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RESULTS

(21)

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Cross section of sugar beet with reddish color in vascular bundles and adjacent tissues.

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Advanced stage of disease with extensive rot.

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Early stage of systemic infection of young plant noted by blackening of midribs and veins.

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Infected vascular bundles caused by systemic infection by the bacterium.

DISEASE: Bacterial vascular necrosis and rot

HOST: Beet

Black discoloration of petioles resulting from systemic infection.

DISEASE: Blood disease

HOST: Banana

Yellow leaves of dying plant.

DISEASE: Blood disease

HOST: Banana

Cross sections of diseased fruit with reddish discoloration and bacterial ooze.

DISEASE: Blood disease

HOST: Banana

Longitudinal sections (right) exposing reddish brown discoloration of infected fruit.

DISEASE: Blood disease

HOST: Banana

Diseased plant with wilt and yellowing of leaves. The disease occurs in Indonesia and is characterized by bright red discoloration of vascular tissues. It is caused by strains in the Ralstonia solanacearum species complex.