. 2018 Apr 17;24(6):1103–1115. doi: 10.1007/s12298-018-0533-4

Table 2.

Activity of polyphenol oxidase (PPO), phenylalanine ammonia-lyase (PAL) and peroxidase (POD) in the leaves of strawberry plants grown for 6 weeks without (− AMF) or with (+ AMF) inoculation with Rhizophagus clarus in the absence (− Si) or presence (+ Si) of 3 mmol L⁻¹ Si (as Na₂SiO₃)

Treatments	PPO (ΔA₃₃₄ mg⁻¹ protein h⁻¹)	PAL (nmol mg⁻¹ protein min⁻¹)	POD (µmol mg⁻¹ protein min⁻¹)
− AMF
− Si	3.0 ± 0.42^a	0.51 ± 0.04^b	5.47 ± 1.15^a
+ Si	1.8 ± 0.18^c	0.65 ± 0.06^a	5.81 ± 1.12^a
+ AMF
− Si	1.8 ± 0.24^c	0.59 ± 0.05^ab	5.93 ± 1.22^a
+ Si	2.4 ± 0.36^b	0.66 ± 0.07^a	5.82 ± 1.17^a

Data are mean ± SD. Data in each column indicated by the same letter are not significantly different (Tukey test, p < 0.05)