Fumigant Activity of the Psidium guajava Var. Pomifera (Myrtaceae) Essential Oil in Drosophila melanogaster by Means of Oxidative Stress

Table 2

Oxidative stress markers and activity of enzymes involved in the antioxidant metabolic routes in D. melanogaster exposed to the P. guajava var. pomifera essential oil.

	TBARS	ROS	PSH	NPSH	GST	SOD	CAT
Control 3 h	1.2 ± 0.2	100 ± 12.8	5.7 ± 0.8	1.8 ± 0.2	109.6 ± 6.7	60.4 ± 3.9	42.7 ± 7.2
Oil 3 h	1.4 ± 0.2	127 ± 6.9^*	5.9 ± 1.1	2.7 ± 0.2^*	122.5 ± 10.7	69.3 ± 11.8	45.6 ± 6.1
Control 6 h	1.4 ± 0.1	100 ± 8.9	6.2 ± 0.9	1.9 ± 0.1	116.7 ± 12.4	56.5 ± 5.6	41.3 ± 2.8
Oil 6 h	1.5 ± 0.1	144.7 ± 10.2^*	6.7 ± 0.8	2.1 ± 0.1	155.4 ± 14.5^*	58.2 ± 12.6	66.8 ± 12.9^*
Control 12 h	1.3 ± 0.1	100 ± 7.5	5.6 ± 0.3	2.1 ± 0.1	118.1 ± 7.7	58.4 ± 5.9	48.8 ± 3.2
Oil 12 h	1.9 ± 0.3^*	167 ± 11.3^*	5.7 ± 0.4	2.3 ± 0.1	179.7 ± 23.8^*	77.2 ± 15.4	58.3 ± 7.6^*

TBARS: nmol mg⁻¹ protein⁻¹.
ROS: percentage of control (%).
PSH and NPSH: mol mg⁻¹ protein⁻¹.
Enzyme activity: mU mg⁻¹ protein⁻¹.
P < 0.05 compared to control.