Allelopathic effects of phenolic compounds of ginseng root rhizosphere on Cylindrocarpon destructans.

doi:10.13287/j.1001-9332.201611.002

Abstract

Abstract: In this study, five phenolic compounds of ginseng rhizosphere soil were identified by HPLC, including gallic acid, salicylic acid, 3-phenylpropionic acid, benzoic acid and cinnamic acid. The results show that five phenolic compounds inhibited mycelium growth and spore germination at high concentration, but promoted mycelium growth and spore germination at low concentration. Gallic acid, salicylic acid, benzoic acid of 0.5 mmol·L^-1 and 3-phenylpropionic acid, cinnamic acid of 0.05 mmol·L^-1 could significantly promote the spore germination, mycelium growth and disease severity of Cylindrocarpon destructans.

Key words: root rot of ginseng, allelopathic effect, phenolic compounds, ginseng rhizosphere, continuous cropping obstacle

LI Zi-bo, ZHOU Ru-jun, XIE Yu-jiao, FU Jun-fan. Allelopathic effects of phenolic compounds of ginseng root rhizosphere on Cylindrocarpon destructans.[J]. Chinese Journal of Applied Ecology, 2016, 27(11): 3616-3622.

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