Abstract:

The aim was to study the function of β-1,3-glucanase and chitinase in ginseng resistance to Cylindrocarpon destructans induced by Methyl Jasmonate. Four treatments were designed in the test, including MeJA、Cylindrocarpon destructans、MeJA+ Cylindrocarpon destructans and CK。Ginseng plants were immersed in Methyl Jasmonates solution (200 mg/L). The ginseng plants were obtained after 3, 6, 9, 12, 15, 20, 25 and 30 days. The activities of β-1,3-glucanase and chitinase were measured. The results showed that both the activities of β-1, 3-glucanase and chitinase could be increased significantly in the ginseng roots induced by MeJA than those in control. The activities of β-1, 3-glucanase reached the peak at 12 days after inoculation, of which was 1.39 times of CK; and chitinase activity reached the peak at 15 days after inoculation, was 1.51 times of CK. The findings indicated that β-1,3-glucanase and chitinase play critical roles in resistance to C. destructans in ginseng induced by Methyl Jasmonate.