Correlation between inhibition activity of endophytic fungus from Euphorbia pekinensis and its host

Abstract

Abstract: To develop endophytic fungi resources from medicinal plants,this paper studied the correlation between endophytic fungus Fusariium sp.E5 from Euphorbia pekinensis and its host through analyzing the inhibition activity of this pathogen.An endophytic strain S12 (Alternaria sp.) from Sapium sebiferum was used as contrast.The results showed that E5 had an inhibitory effect on the host,while S12 and E.pekinensis extract didn't have it.The inhibition activity of E5 could be stimulated by the extract of host leaf,and its inhibitory effect could only be found when it was cultured with enough oxygen.The inhibition activity was affected by pH,temperature,and ultra-violet.These characters of endophytic fungus E5 showed a good correlation with its host,and this correlation was mutualism.

Key words: Endophytic fungi, Bacteriostasis, Correlation, Euphorbia pekinensis, Mutualism

CLC Number:

Q936

DAI Chuanchao, YU Boyang, ZHAO Yuting, YANG Qiyin, JIANG Jihong . Correlation between inhibition activity of endophytic fungus from Euphorbia pekinensis and its host[J]. Chinese Journal of Applied Ecology, 2005, 16(7): 1290-1294.

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