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
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
Department of Agriculture
The material on this page is in the public
Original posting: June 5, 1999.