Endophytic Colletotrichum siamense for Biocontrol and Resistance Induction in Guarana Seedlings

Table 4

Average phenylalanine ammonia lyase (PAL) activity in guarana leaves.

Treatment	PAL (U·mL^−1)
	Elapsed time in hours after pathogen inoculation
	0	48	72	96	CV (%)
CS + pathogen	0.101 ± 0.02^a	0.098 ± 0.01^ab	0.099 ± 0.01^a	0.087 ± 0.02^a	0.20
F + pathogen	0.093 ± 0.02^a	0.103 ± 0.02^a	0.093 ± 0.02^ab	0.084 ± 0.02^a	0.23
Positive control	0.097 ± 0.02^a	0.098 ± 0.02^ab	0.085 ± 0.01^bc	0.093 ± 0.02^a	0.22
Negative control	0.085 ± 0.02^a	0.087 ± 0.02^b	0.072 ± 0.01^c	0.079 ± 0.02^a	0.24

Values in columns followed by the same letter are not significantly different (, Tukey’s test). CS: Colletotrichum siamense; F: fungicide; CV: coefficient of variation.