Transcriptional induction of an Agrobacterium regulatory gene at tandem promoters by plant-released phenolic compounds, phosphate starvation, and acidic growth media.

Abstract excerpt

Transcription of the virG gene of Agrobacterium tumefaciens was previously shown to be expressed from two tandem promoters and to be responsive to three stimuli: plant-released phenolic compounds, phosphate starvation, and acidic media. In this report, I describe a set of deletions and other alterations of the 5' end of virG that show that the upstream promoter (P1) is necessary for induction by phenolic...

Topics

• Acetophenones
• Base Sequence
• Chromosome Deletion
• Culture Media
• Escherichia coli
• Genes, Bacterial
• Genes, Regulator
• Hydrogen-Ion Concentration
• Molecular Sequence Data
• Mutation
• Oligonucleotide Probes