Range: ±7.5e5 atoms/cell
||Cyanobacteria Synechocystis PCC 6803
||Keren N, Aurora R, Pakrasi HB. Critical roles of bacterioferritins in iron storage and proliferation of cyanobacteria. Plant Physiol. 2004 Jul135(3):1666-73. p.1668 right column bottom paragraphPubMed ID15247377
||Atomic absorption spectrometry
||"Direct measurements of the intracellular iron content using atomic absorption spectrometry revealed
that in early exponential phase cells, the iron content in all three mutant strains was approximately 70% of that in wild-type cells (wild-type content: 9.3?10^6±7.5?10^5 atoms/cell)."