Pearl Millet Diseases
Bacterial Diseases

Bacterial Leaf Streak

Xanthomonas campestris (Pammel) Dowson pv. pennamericanum

Symptoms: Symptoms are not clearly defined in the literature but are apparently similar to those of bacterial leaf stripe and streak of sorghum.

Pathogen and disease characteristics: Yellow, mucoid bacterial colonies in culture. Aerobic, motile, gram-negative, rod-shaped bacteria differing pathologically, serologically, and by membrane protein patterns from other pathovars of X. campestris. Cells measure 0.45 × 2.25 µm and have one polar flagellum. Optimal growth occurs between 26 and 30 °C.

Host range: Pearl millet and proso millet (Panicum miliaceum).

Geographic distribution: Nigeria. Also collected from Senegal and Niger (L. Claflin, personal communication, 1995).

Nomenclature discrepancies: None.

Seed transmission: Not known to be transmitted by seed.

Primary citation: Qhobela and Claflin 1988.

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United States Department of Agriculture
Agricultural Research Service

The material on this page is in the public domain.

Original posting: June 5, 1999.