title: Differentiation of metaxylem cell line in the root of Allium cepa. I. DNA heterogeneity and ribosomal cistrons of two different stages of differentiation.
mesh_terms: D002454:Cell Differentiation; D004247:DNA / Q000378:metabolism; D009691:Nucleic Acid Denaturation; D009693:Nucleic Acid Hybridization; D018521:Plant Physiological Phenomena; D010944:Plants / Q000378:metabolism*; D012270:Ribosomes / Q000378:metabolism*
chemical_list: D004247:DNA