Roles of alcohol dehydrogenases of Zymomonas mobilis (ZADH): characterization of a ZADH-2-negative mutant
1995
O'Mullan, P.J. | Buchholz, S.E. | Chase, T. Jr | Eveleigh, D.E.
Zymomonas mobilis is a potential candidate for fuel ethanol production because of its high ethanol productivity. A key enzyme in ethanol production is alcohol dehydrogenase (ADH). Z. mobilis possesses two isozymes, ZADH-1 and ZADH-2. To clarify their physiological roles, mutants with modified ADH were isolated by selection based on resistance to allyl alcohol. From the physiological characteristics of a ZADH-2-negative mutant, it is suggested that ZADH-1 functions as the major ADH, while ZADH-2 could become functional in the latter stages of fermentation.
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