Table 3.

Total protein concentration and enzymatic activities of peroxidase and chitinase from root exudates of control and chitosan-treated plants

	Condition	Protein content (µg protein/ml retentate)	Peroxidase activity (ΔOD/min·mg protein)	Chitinase activity (mmol GlcNAc released/g protein)
Pre-treatment	Control	53.80 ± 11.91	0.13 ± 0.04	1.67 ± 0.51
	Chitosan	81.07 ± 16.99	0.04 ± 0.01	1.34 ± 0.33
Post-treatment	Control	146.20 ± 15.52	0.30 ± 0.12	0.28 ± 0.02
	Chitosan	104.87 ± 11.14	6.48 ± 2.17*	2.02 ± 0.89

Values express mean ± SEM from three biological replicates.

*p-value < 0.05 (T-test), comparing between control and chitosan conditions