Shin Jong-Hwan, Fu Teng, Park Kyeong Hun, Kim Kyoung Su
Division of Bioresource Sciences, Kangwon National University, Chuncheon 24341, Korea.
Department of Herbal Crop Research, National Institute of Agriculture Science, RDA, Eumseong 277708, Korea.
Mycobiology. 2017 Sep;45(3):220-225. doi: 10.5941/MYCO.2017.45.3.220. Epub 2017 Sep 30.
Ginseng root rot caused by is the most destructive disease of ginseng. Six different fungicides (thiophanate-methyl, benomyl, prochloraz, mancozeb, azoxystrobin, and iprodione) were selected to evaluate the inhibitory effect on the mycelial growth and conidial germination of isolates. Benomyl and prochloraz were found to be the most effective fungicides in inhibiting mycelial growth of all tested isolates, showing 64.7% to 100% inhibition at a concentration of 10 µg/mL, whereas thiophanate-methyl was the least effective fungicide, showing less than 50% inhibition even at a higher concentration of 100 µg/mL. The tested fungicides exhibited less than 20% inhibition of conidium germination at concentrations of 0.01, 0.1, and 1 µg/mL. However, the inhibition effect of mancozeb on condium germination of was significantly increased to 92% to 99% at a higher concentration of 100 µg/mL, while the others still showed no higher than 30% inhibition.
由[未提及具体病原菌]引起的人参根腐病是人参最具毁灭性的病害。选取了六种不同的杀菌剂（甲基硫菌灵、苯菌灵、咪鲜胺、代森锰锌、嘧菌酯和异菌脲）来评估它们对[未提及具体病原菌]分离株菌丝生长和分生孢子萌发的抑制作用。结果发现，苯菌灵和咪鲜胺是抑制所有测试分离株菌丝生长最有效的杀菌剂，在浓度为10微克/毫升时，抑制率为64.7%至100%，而甲基硫菌灵是最无效的杀菌剂，即使在100微克/毫升的较高浓度下，抑制率也低于50%。在浓度为0.01、0.1和1微克/毫升时，测试的杀菌剂对分生孢子萌发的抑制率均低于20%。然而，代森锰锌在100微克/毫升的较高浓度下，对[未提及具体病原菌]分生孢子萌发的抑制效果显著提高到92%至99%，而其他杀菌剂的抑制率仍不高于30%。
