Volume 61, no. 3, p. 305–318: Because the issues of cells regulating their levels of enzymes were left for a subsequent review, key work from the laboratory of Ferenci (T. Ferenci, FEMS Microbiol. Rev. 18:301–317, 1996; L. Notley-McRobb, A. Death, and T. Ferenci, Microbiology 143:1909–1918, 1997) was omitted.
Page 310, column 2, lines 21 to 6 from the bottom: A two-component system regulating uptake and growth has already been described (J. W. Lengeler, Antonie Leeuwenhoek 63:275–288, 1993).
Page 311, column 1, lines 10 to 13: Reference 75 discusses a straightforward kinetic model; the cybernetic model is discussed by the same authors in Chem. Eng. Sci. 52:2567–2578, 1997.