A plant-inducible gene of Xanthomonas campestris pv. campestris encodes an exocellular component required for growth in the host and hypersensitivity on nonhosts.

Abstract excerpt

Using Tn4431, a transposon that allows transcriptional fusions to a promoterless luciferase (lux) operon, we have isolated a nonpathogenic mutant of Xanthomonas campestris pv. campestris, i.e., JS111, that does not incite any of the black rot symptoms on all tested cruciferous host plants (J. J. Shaw, L. G. Settles, and C. I. Kado, Mol. Plant Microbe Interact. 1:39-45, 1988). In the study reported here, we...

Topics

• Chromosome Mapping
• Cloning, Molecular
• DNA Transposable Elements
• Escherichia coli
• Gene Expression Regulation, Bacterial
• Genes, Bacterial
• Luciferases
• Operon
• Phenotype
• Plants
• Plasmids