Lipotubuloids. structures containing lipid bodies and microtubules. are described in ovary epidermalcells of Ornithogalum umbellatum. Microtubules of lipotubuloids can be fixed in electron microscope fixativecontaining only buffered OsO4 or in glutaraldehyde with OsO4 post-fixation. https://www.aitsglobal.com/product-category/woven-topslvless/