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[Dynamics of the redox potential in a fed-batch culture of E. coli].

1984; National Institutes of Health; Volume: 29; Issue: 5 Linguagem: Inglês

Oktiabr'skiĭ On, Smirnova Gv, Zelenin En,

Origins and Evolution of Life

Dynamics of Eh, pH, pO2 and optical density in E. coli cultures under glucose and ammonium exhaustion were studied. It has been shown that changes in the redox potential accompanying the exhaustion of these substances in aerobic cultures are the leaps by their character and reflect the physiological state of cells and changes in the structure of cell surface. A relationship between the changes in the redox potential and in the electrochemical potential of H ions (delta mu H) is suggested.