RNA synthesis during development of the male gametophyte of Tradescantia.

Carbon Isotopes Cell Nucleus/metabolism Centrifugation, Density Gradient Chromatography, Paper Cytoplasm/metabolism Dactinomycin Nucleotides/analysis Phosphorus Isotopes Plants/metabolism Pollen Polysaccharides/metabolism RNA/biosynthesis Ribosomes/metabolism Tritium Uridine/metabolism

Carbon Isotopes Nucleotides Phosphorus Isotopes Polysaccharides Tritium Dactinomycin RNA Uridine