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Survival in soil of P. putida DOT-T1 after toluene shock. About 108 CFU of P. putida DOT-T1 per g of soil was introduced into independent pots, which were supplemented or not supplemented with toluene. Symbols: ○, no addition; •, 0.1% (vol/wt) toluene; ▵, 1% (vol/wt) toluene; ▴, 10% (vol/wt) toluene. At different times the number of CFU per g soil was determined.
