cucurbits stem- cell microscopic

anatomical anatomy angiosperm bacteria bark biological biology biotechnology botanical botany cambium cell cross cucurbita cucurbits cut cytoplasm educational end fibre flora grain grains histological histology informational light lignified methodical micrograph microorganism microscope molecule nature nuclei out parenchyma periderm plant plasmolysed pumpkin rhizodermis rizoderma sap sativus science secondary section sectioned starch stem study tissue vacuole vessels wall xylem