Abstract:

To understand the ultrastructural changes of leaf cells after black spot pathogen infecting poplar leaves, the leaves of high-resistant clone Populus euramericana CL“NL 895” and infected Populus canadensis Moench were separately used as the experimental materials to analyze by Scanning electron microscope (SEM) and Transmission electron microscope (TEM). This provided theory basis of cell aspect to further study the pathogenic mechanism of black spot pathogen.