Skip to main content
. 2011 Jun;77(11):3830–3837. doi: 10.1128/AEM.00027-11

Table 2.

M. graminicola isolate azole sensitivities

Isolateb Location and yr of isolation MgCYP51 substitutions(s) Mean EC50 (mg liter−1)a
Epoxiconazole Tebuconazole Triadimenol Prochloraz Prothioconazole Propiconazole
IPO323 North Brabant, Netherlands; 1981 None (wt) 0.0019 0.053 0.927 0.027 0.051 0.008
MM20 Aragon, Spain; 2006 None (wt) 0.0017 0.063 0.714 0.016 0.194 0.014
MBC/ST1 UK; 1973 None (wt) 0.0069 0.146 1.45 0.021 0.091 0.022
Bd17 Aragon, Spain; 2006 None (wt) 0.001 0.026 0.366 0.002 0.056 0.005
Mean 0.0028 0.072 0.864 0.016 0.098 0.012
Avg deviation 0.002 0.037 0.324 0.007 0.048 0.0057
Mean RF 1 1 1 1 1 1
Rd9 Reading, UK; 1993 Y137F 0.0263 0.299 18 0.115 0.081 0.141
Rd13 Reading, UK; 1993 Y137F 0.0098 0.212 10.6 0.078 0.046 0.048
Bd13 Aragon, Spain; 2006 Y137F 0.0076 0.176 8.2 0.033 0.01 0.028
4414 Belarus; 2007 Y137F 0.0153 0.36 22.1 0.109 0.092 0.108
Mean 0.0148 0.262 14.73 0.084 0.073 0.081
Avg deviation 0.006 0.068 5.32 0.028 0.018 0.043
Mean RF 5 4 17 5 1 7
CTRL-01 Harpenden, UK; 2001 Y137F, S524T 0.093 0.736 >35 0.626 0.063 0.401
4362 Denmark; 2007 Y137F, S524T 0.145 1.01 26.2 0.451 0.293 0.493
R03-25 Harpenden, UK; 2003 Y137F, S524T 0.205 1.47 30.3 0.682 0.322 0.917
R03-31 Harpenden, UK; 2003 Y137F, S524T 0.058 0.379 23.8 0.433 0.284 0.235
R03-45 Harpenden, UK; 2003 Y137F, S524T 0.067 0.842 14.2 0.491 0.238 0.251
Mean 0.114 0.887 27.9 0.537 0.241 0.459
Avg deviation 0.049 0.282 4.7 0.095 0.072 0.196
Mean RF 41 12 32 34 3 38
Bd12 Aragon, Spain; 2006 L50S, Y461S 0.0404 1.47 13.5 0.134 0.314 0.318
IC6 Ireland; 2003 L50S, Y461S 0.0814 1.28 6.7 0.118 0.553 0.196
R03-6 Harpenden, UK; 2003 L50S, Y461S 0.0401 1.68 13.4 0.212 0.556 0.272
Mean 0.0539 1.48 11.19 0.154 0.474 0.262
Avg deviation 0.018 0.135 3 0.038 0.11 0.044
Mean RF 19 21 13 10 1 22
SAC56.1 Edinburgh, UK; 2006 L50S, V136A, Y461S 0.291 0.198 5.59 0.771 2.28 1.32
RF 104 3 7 48 23 110
IC1 Ireland; 2008 L50S, V136A, Y461S, S524T 0.268 0.372 4.86 1.37 12.8 2.13
IC4 Ireland; 2008 L50S, V136A, Y461S, S524T 0.493 0.493 6.76 0.835 3.88 2.48
IC5 Ireland; 2008 L50S, V136A, Y461S, S524T 0.381 0.134 3.08 0.769 2.29 1.49
I43-2 Carlow, Ireland; 2009 L50S, V136A, Y461S, S524T 1.33 0.151 14.6 0.603 5.66 1.58
Mean 0.618 0.288 7.33 0.894 6.16 1.92
Avg deviation 0.28 0.12 2.91 0.19 2.66 0.31
Mean RF 220 4 8 56 63 160
TAG71-3 Andover, UK; 2009 L50S, D134G, V136A, Y461S, S524T 0.6 0.47 15.8 2.67 >35 1.87
RF 215 7 18 167 >357 156
a

EC50s are the means of two independent experiments. Mean resistance factors (RF) of isolates carrying the same MgCYP51 variant calculated as the fold changes in mean EC50 compared to mean EC50s of wild-type isolates.

b

Isolates Rd9 and Rd13 were supplied by Mike Shaw (University of Reading), isolates 4414 and 4362 were supplied by Gert Stammler (BASF), and isolates IC1, IC4, IC5, and IC6 were supplied by Eugene O'Sullivan (Teagase).