title: Improved preparative methods for isolation and purification of tobacco chloroplast ribosomes, ribosomal proteins, and rRNA.
mesh_terms: D002458:Cell Fractionation; D002499:Centrifugation, Density Gradient; D011232:Chemical Precipitation; D002712:Chlorides; D002736:Chloroplasts / Q000032:analysis* / Q000648:ultrastructure; D004591:Electrophoresis, Polyacrylamide Gel; D007202:Indicators and Reagents; D008094:Lithium; D018021:Lithium Chloride; D010947:Plants, Toxic; D012335:RNA, Ribosomal / Q000302:isolation & purification*; D012269:Ribosomal Proteins / Q000302:isolation & purification*; D012270:Ribosomes / Q000648:ultrastructure*; D014026:Nicotiana; D014508:Urea
chemical_list: D002712:Chlorides; D007202:Indicators and Reagents; D012335:RNA, Ribosomal; D012269:Ribosomal Proteins; D014508:Urea; D008094:Lithium; D018021:Lithium Chloride