Ultrastructural Studies of Barley Mesophyll Cella lnfected with Barley Yellow Mosaic Viruses Comparison of inclusions in female and male Trichosanthes kirilowii individuals Intranuclear and Cytoplasmic Inclusions in Embryogenic and Embryoidal Cells of Panax quinque folius Effects of the damage by Apolygus lucorum (Meyer-Dür) on physiological indexes of peach leaves in different spatial positions ULTRASTRUCTURAL STUDIES ON MEMBRANED INCLUSIONS IN THE CELLS OF MERISTEMATIC REGIONS OF STEVIA REBAUDIANA CALLUS ELECTRON MICROSCOPIC OBSERVATION ON A KIND OF CYTOPLASMIC INCLUSION IN THE INFECTED CELLS OF SOYBEAN ROOT NODULES