FIG. 1.
Survival in soil of P. putida F1 after solvent shock. About 107 CFU of P. putida F1 per g of soil was introduced into independent pots to which 10% (vol/wt) heptane (•), 10% (vol/wt) propylbenzene (▵), 1% (vol/wt) toluene (▴), 1% (vol/wt) benzene (□), or nothing (○) was added. At different times the number of CFU per g of soil was determined.
