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CAD and SAD Localization in Tobacco Stems.
Cross sections of tobacco stem (A) stained with phloroglucinol or incubated with antiserum raised against (B) tobacco CAD, (C) aspen SAD, or (D) nonimmunized rabbit serum and visualized by immunofluorescence microscopy. p, phloem; pf, phloem fiber; rp, ray parenchyma; vc, vascular cambium.
Bars = 100 μm.
