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Applied and Environmental Microbiology, June 2001, p. 2867-2870, Vol. 67, No. 6
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.6.2867-2870.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Spontaneous Formation of a Mannitol-Producing Variant of Leuconostoc pseudomesenteroides Grown in the Presence of Fructose

Gert J. Grobben,1,2,* Sjors W. P. G. Peters,1,2 H. Wouter Wisselink,1,2 Ruud A. Weusthuis,1,2 Marcel H. N. Hoefnagel,1,3 Jeroen Hugenholtz,1,4 and Gerrit Eggink1,2

Wageningen Centre for Food Sciences (WCFS),1 ATO Agrotechnological Research Institute,2 6700 AA Wageningen, Subdepartment of Food and Bioprocess Engineering, Wageningen University, 6700 EV Wageningen,3 and NIZO Food Research, 6710 BA Ede,4 The Netherlands

Received 19 March 2001/Accepted 22 March 2001

We report the spontaneous formation of a stable mannitol-producing variant of Leuconostoc pseudomesenteroides. The mannitol-producing variant showed mannitol dehydrogenase activity which was absent in the parental strain. It was also able to use fructose and glucose simultaneously, whereas the parental strain showed diauxic growth with these sugars. A possible explanation of these observations is discussed.

* Corresponding author. Mailing address: Wageningen Centre for Food Sciences (WCFS), ATO Agrotechnological Research Institute, Bornsesteeg 59, NL-6708 PD Wageningen, The Netherlands. Phone: 31-317-478569. Fax: 31-317-475347. E-mail: g.j.grobben{at}ato.wag-ur.nl.

Applied and Environmental Microbiology, June 2001, p. 2867-2870, Vol. 67, No. 6
0099-2240/01/$04.00+0   DOI: 10.1128/AEM.67.6.2867-2870.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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Copyright © 2001 by the American Society for Microbiology. All rights reserved.