“Bacitracin, an inhibitor of the cycling of phosphorylated … involved in cell-wall synthesis in bacteria, and ethylenediaminetetracetic acid (EDTA) and ethyleneglycol-bis-(β-amino-ethylether)-N,N′-tetracetic acid (EGTA), chelators of civalent …, were also effective, although only at relatively high concentrations, in inhibiting incorporation of radioactivity into cellulose.”