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Effects of NaNO2 on calcimycin and cezomycin production by S. chartreusis NRRL 3882. (A) Calcimycin and cezomycin presence in cultures of S. chartreusis NRRL 3882 with and without 1 mM NaNO2 supplementation assayed by HPLC with a control standard of calcimycin and cezomycin for comparison; (B) quantification of calcimycin and cezomycin in the cultures described for panel A.
