The following organisms exhibit R-prime (R plasmid carrying chromosomal 
genes) transfer to E. coli K-12 mediated by the IncP-1 plasmids. 
1. All members of the Enterobacteriaceae family 
2. Vibrio species (excluding Vibrio parahemolyticus ) 
3. Pseudomonas species 
4. Rhizobium species 
5. Acinetobacter calcoaceticus 
6. Agrobacterium tunafaciens 
7. Rhodopseudomonas sphaeroides 
8 . Caulobacter crescentis 
[Appendix A — 296] 
