Study on Pathogenicity Differentiation of Cytospora sacculus Isolated from Woods in Xinjiang Province
In order to clarify Cytospora sacculus that the main pathomycete of woods canker in Xinjiang differentiation of pathogenicity and the mechanism of differentiation.A total of 22 C.sacculus strains come from 6 hosts were cross inoculated on 4 tree branches.Five typical strains were selected and its pectinase activity,mycelial growth rates and toxins were analyzed by dinitrosalicylic acid (DNS),plate method and high performance liquid chromatography (HPLC) methods.The results showed that different host sources of C.sacculus existed obvious pathogenic differentiation,and the pathogenicity of typical strain were strongest to primary come from host,but were weak to other species of tree branches.The pectinase activity,mycelial growth rates and toxins production difference were main reason for the differentiation in pathogenicity.
Xinjiangvalsa canker of treeCytospora sacculusdifferentiation of pathogenicity
NETL
NSTL
万方数据
维普
