Azotobacter vinelandii増殖における収率因子の解析

概要

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Following the previous study on the dynamical behavior of a chemostatic culture of Azotobacter vinelandii, the microbial response to a delta pulse of glucose in the medium and the subsequent unbalanced growth were studied. A linear relationship between the reciprocal of the over-all yield factor, Y for growth and that of the specific growth rate μ_x was also confirmed by using the experimental data secured from the unbalanced growth. The linear relationship was seemingly similar to that which was obtained previously from the chemostatic culture of the bacterium. Incidentally, the value of yield factor, Y_G for growth as assessed from the intercept of the straight line with the ordinate was found negative in the plot by using the unbalanced growth data. Apparently, this fact is inconsistent with the definition of the yield factor, Y_G. However, by introducing a concept that the value of Y_G is not kept constant in the unbalanced and/or in the balanced growth and by assuming that Y_G is a specific function of μ_x as shown in the text, some elaborate discussion was attempted in this work to avoid eventually this inconsistency.
社団法人日本生物工学会の論文
1968-09-25