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. 1966 Mar;98(3):804-12.
doi: 10.1042/bj0980804.

Sucrose utilization by Zymomonas mobilis: formation of a levan

E A Dawes, D W Ribbons, D A Rees

Sucrose utilization by Zymomonas mobilis: formation of a levan

E A Dawes et al. Biochem J. 1966 Mar.

Abstract

1. Molar growth-yield coefficients of Zymomonas mobilis for glucose, fructose, glucose plus fructose, and sucrose are reported. Yield coefficients for sucrose are appreciably lower than those for the equivalent concentrations of glucose plus fructose. 2. Only 2.6% of [U-(14)C]glucose supplied in the growth medium is incorporated into cell substance by Z. mobilis utilizing glucose as the energy source. 3. During growth on sucrose a levan is formed. It has been characterized and shown to resemble other bacterial levans. 4. Levan formation from sucrose could be demonstrated with both washed cell suspensions and cell extracts of Z. mobilis. 5. Sucrose phosphorylase could not be demonstrated in extracts of the organism.

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References

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