VIEW ARTICLE

Tissue Necrosis in Tobacco Caused by a Saprophylic Bacterium. L. Lovrekovich, Former Assistant Professor, Department of Plant Pathology, University of Missouri, Columbia 65201, now Department of Plant Pathology, University of Kansas, Kansas City 66103; H. Lovrekovich, Research Microbiologist, Department of Plant Pathology, University of Missouri, Columbia 65201, now Department of Plant Pathology, University of Kansas, Kansas City 66103. Phytopathology 60:1279-1280. DOI: 10.1094/Phyto-60-1279.

Suspensions containing 10⁸ cells/ml of Pseudomonas fluorescens caused necrosis when injected into tobacco leaf tissue. The injected tobacco was incubated in the dark for 3 days in a moist chamber at 24 C and subsequently transferred for 1 day to a relative humidity of 25-35%. It was concluded that the saprophyte P. fluorescens has the potential to cause tissue necrosis in tobacco leaf tissue similar to that caused by many pathogenic bacteria.