Component Analysis and Antifungal Activity of Volatile Oil from Eucalyptus Fruit
To elucidate the chemical composition of the volatile oil from Eucalyptus fruit and its fumigation inhibitory effect on plant pathogens,this paper employed gas chromatography-mass spectrometry(GC-MS)to analyze its chemical components and utilized the mycelial growth rate method to assess its inhibitory impact on four common pathogens.The results showed that the main components of the volatile oil from Eucalyptus fruit were eucalyptol(42.26％),coumarin(11.47％),and euca-lyptol(8.19％),etc.And it has strong fumigation inhibition effects on all four tested pathogens:the effective medium concen-tration(EC50)were all below 78.00 μ L/L.After fumigation treatment with volatile oil,the pathogenic fungal hyphae showed deformities,distortions,and leakage of tip contents,indicating that the volatile oil has good antifungal activity,which suggests its potential as a green fumigation fungicide for agricultural plant disease prevention and control.
万方数据
维普
