Table 1 Ki (nM) values of the seven commercial herbicides for WT and mutant AtAHASs.

From: Structural basis of resistance to herbicides that target acetohydroxyacid synthase

Herbicide (family)

WT

W574L

P197L

P197T

S653T

CE (SUs)

75 ± 6a

5200 ± 300

4400 ± 500

2200 ± 200

53 ± 4.6

AS (SUs)

4200 ± 600

870000 ± 60000

93500 ± 17100

61400 ± 8900

492 ± 25.0

PS (TPs)

1.9± 0.9b

67100 ± 3000

82 ± 7

85 ± 6.3

5 ± 2.2

MT (TPs)

29 ± 11.2

39300 ± 3900

1320 ± 130

1130 ± 130

66 ± 5.6

BS (PYBs)

41 ± 6a

6100 ± 1000

115 ± 13

106 ± 4.8

90 ± 13.1

PTB (PYBs)

179 ± 12a

91200 ± 8200

2000 ± 200

1500 ± 300

218 ± 15.8

IQ (IMIs)

18500 ± 2000a

704000 ± 58500

13800 ± 1100

12400 ± 1800

240000 ± 26000

  1. CE chlorimuron ethyl, AS amidosulfuron, PS penoxsulam, MT metosulam, BS bispyribac, PTB pyrithiobac, IQ imazaquin.
  2. aTaken from Garcia et al.13.
  3. bTaken from Lonhienne et al.11.
  4. “±” represents the standard error of the mean.
Back to article page