TABLE 1.
Retrieval of two types of naphthalene-catabolic plasmids from laboratory-incubated filter matings between the microbial community native to the contaminated MW36a and recipient strains (109 cells per mating)
| Recipient | No. of transconjugants from plasmidb
|
|
|---|---|---|
| RFLPa | RFLPb | |
| Cg1.CR | 9 | 20 |
| Cg2.CR | 2 | 1 |
| Cg4.CR | 7 | 10 |
| Cg9.CR | 1 | 9 |
| Cg21.CR | 0 | 3 |
a
No transconjugants were obtained from filter matings with the microbial community from uncontaminated groundwater (MW4).
b
Total colonies resistant to rifampin and able to grow on naphthalene. RFLP patterns type a and b are described in the text and in the legend to Fig. 1.