ISSN:
1573-6776
Keywords:
ethanol
;
glucose
;
pentoses
;
xylose transport
;
Zymomonas mobilis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Abstract The narrow substrate range of Zymomonas mobilis CP4 has been extended previously to include metabolism of the pentose sugar, xylose, by Zhang et al. (Science 267: 240–243). The strain CP4(pZB5) co-ferments both glucose and xylose in mixed sugar fermentations, however glucose is utilized preferentially. The present work reports the isolation of a new mutant from CP4(pZB5) which displays an altered carbon substrate preference. The mutant, CP4(pZB5) M1-2, metabolizes xylose more rapidly than glucose in mixed glucose/xylose media. Sequence data analysis revealed mutations in both the glucose facilitator (glf) and glucokinase (glk) genes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1005613912777
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