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. Author manuscript; available in PMC: 2012 Aug 27.
Published in final edited form as: Biometals. 2009 Dec;22(6):1051–1061. doi: 10.1007/s10534-009-9256-x

Fig. 3.

Fig. 3

Riboflavin productivity of P. guilliermondii wild-type strain and Δyfh1 mutant. Cultures of P. guilliermondii wild-type strain R-66 (WT) and Δyfh1 mutant were grown for 5 days aerobically at 30°C in synthetic Burkholder medium supplemented with 3.6 μM of iron added as ammonium ferrous sulfate (+Fe). Iron deficient medium contained approximately 0.18 μM of iron (−Fe). Values are means ± SE of three independent experiments