Xanthomonas campestris pv. raphani

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Xanthomonas_campestris_pv_raphani_symptoms_savoy_cabbage

Xanthomonas campestris pv. raphani

Xanthomonas campestris pv. raphani is a plant pathogenic bacterium that causes bacterial leaf spot disease in plants of the Brassicaceae family. It specifically infects plants such as radishes, mustard greens, and other cruciferous vegetables. The bacterium is a Gram-negative, rod-shaped bacterium that is known for its ability to colonize plant tissues and cause disease symptoms.

Symptoms[edit | edit source]

Infected plants typically exhibit symptoms such as circular, water-soaked lesions on the leaves, which later turn necrotic and may have a yellow halo surrounding them. In severe cases, the disease can lead to defoliation and reduced crop yield. The bacterium spreads through contaminated seeds, plant debris, and water.

Management[edit | edit source]

Management of Xanthomonas campestris pv. raphani involves using disease-resistant plant varieties, practicing crop rotation, and maintaining proper sanitation practices in the field. Copper-based fungicides can also be used to control the spread of the disease.

Prevention[edit | edit source]

Preventative measures include ensuring the use of disease-free seeds, avoiding overhead irrigation, and removing and destroying infected plant material to prevent the spread of the bacterium.

Research[edit | edit source]

Research on Xanthomonas campestris pv. raphani focuses on understanding the molecular mechanisms of pathogenicity, developing novel control strategies, and identifying genetic markers for disease resistance in plants.


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Contributors: Prab R. Tumpati, MD