Fig. 4

Interaction plot within the ANOVA for factors affecting on Fe content in biomass (of 1 cc culture medium); A) Na2-EDTA, B) FeCl3, C) Tryptone- yeast extract interaction and D) Na2-EDTA and FeSO4 interaction.

Interaction plot within the ANOVA for factors affecting on Fe content in biomass (of 1 cc culture medium); A) Na2-EDTA, B) FeCl3, C) Tryptone- yeast extract interaction and D) Na2-EDTA and FeSO4 interaction.