Table 3 HPLC profiling of some polyphenolic compounds (mg mL^− 1) in wheat leaves infected with stripe rust in response to the applied treatments at 7 days after infection

Gallic acid

4.81 ± 0.70^c

7.77 ± 0.28^a

7.25 ± 0.08^b

7.25 ± 0.12^b

Protocatechuic acid

1.73 ± 0.12^b

1.36 ± 0.09^c

1.64 ± 0.07^b

2.12 ± 0.06^a

Catechin

39.36 ± 1.47^d

50.26 ± 0.59^a

43.04 ± 1.06^c

46.88 ± 1.2^b

Esculetin

2.00 ± 0.80^d

7.05 ± 0.68^b

5.02 ± 0.23^c

8.59 ± 0.13^a

Vanillic acid

2.26 ± 0.21^b

0.94 ± 0.30^d

1.29 ± 0.15^c

2.72 ± 0.10^a

Pyrocatechol

2.56 ± 0.07^b

2.38 ± 0.05^c

2.85 ± 0.04^a

2.50 ± 0.03^b

Coumarin

0.17 ± 0.03^c

0.76 ± 0.08^b

0.68 ± 0.01^b

1.00 ± 0.04^a

Cinnamic acid

0.09 ± 0.03^c

0.29 ± 0.04^b

0.27 ± 0.02^b

0.99 ± 0.06^a

4,3-indole butyl acetic acid

2.16 ± 0.29^d

4.54 ± 0.04^a

2.67 ± 0.13^c

3.55 ± 0.03^b

Naphthylacetic acid

1.68 ± 0.02^d

2.25 ± 0.02^c

3.91 ± 0.04^a

3.37 ± 0.02^b