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Table 5 Number of his + revertants in Salmonella typhimurium strains TA98 and TA100 produced by isolated compounds

From: Antimicrobial activity, toxicity and selectivity index of two biflavonoids and a flavone isolated from Podocarpus henkelii (Podocarpaceae) leaves

   TA98    TA98  
No. of colonies No. of colonies
  Concentration (μg/ml)   Concentration (μg/ml)
Compounds 1000 100 10 1000 100 10
TMA 23 ± 5.3 28.3 ± 3.2 26.7 ± 3.8 176 ± 31.8 139 ± 2.5 138 ± 67
IGG 25.3 ± 4.6 25.3 ± 4.6 25.5 ± 2.1 170.3 ± 225 169 ± 14.6 154 ± 4.4
PFA N/D N/D N/D N/D N/D N/D
Spontaneous 19.3 ± 4    152 ± 10   
4NQO 170.3 ± 20    960 ± 35.1   
  1. N/D = Not determined.