Effect of Dry Heat Treatment of Red Ginseng and Red Ginseng Residue on Mycelial Growth and on Induced Tolerance of Fusarium oxysporum to Mercury Chloride

홍미삼과 홍삼정박의 건열처리가 Fusarium owsporum의 균사 생장과 승홍에 대한 내성에 미치는 영향

Korean red ginseng and water extract residue of red ginseng roots were treated with dry heat and incorporated in PDA medium to examine the effect of the materials on induced tolerance against mercury chloride and mycelial growth of Fusarium oxysporum. Ginseng residue was not effective in the inducement of tolerance to mercury chloride regardless of dry heat treatment. However, the heat treatment of ginseng and ginseng residues stimulated the mycelial growth of the fungus. The materials responsible for the detoxification appeared to be water-soluble. The stimulation of the fungal mycelial growth on the media by the heat treatment was highest in the water extract of ginseng. Due to the heat treatment, the mycelial growth was also slightly increased in n-hexane and methanol extracts of ginseng, compared with the ginseng fractions without dry heat treatment.