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Applied and Environmental Microbiology, February 2009, p. 1201-1203, Vol. 75, No. 4
0099-2240/09/$08.00+0     doi:10.1128/AEM.02238-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Role of Germinant Receptors in Caco-2 Cell-Initiated Germination of Bacillus cereus ATCC 14579 Endospores {triangledown}

Luc M. Hornstra,1,2,{dagger} Menno van der Voort,1,3 Lucas M. Wijnands,4 Petra J. Roubos-van den Hil,3 and Tjakko Abee1,3*

TI Food and Nutrition, Wageningen, The Netherlands,1 Agrotechnology and Food Innovations, Wageningen UR, Wageningen, The Netherlands,2 Laboratory of Food Microbiology, Wageningen UR, Wageningen, The Netherlands,3 National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands4

Received 29 September 2008/ Accepted 9 December 2008

Spores obtained from Bacillus cereus ATCC 14579 and mutant strains lacking each of seven germinant receptor operons were exposed to differentiated Caco-2 cells and monitored for germination. Spores of the gerI and gerL mutants showed a reduced germination response, pointing to a role for these receptors in Caco-2-induced germination.

* Corresponding author. Mailing address: Laboratory of Food Microbiology, Wageningen University, Bomenweg 2, 6703 HD Wageningen, The Netherlands. Phone: 31-317-484981. Fax: 31-317-484978. E-mail: tjakko.abee{at}wur.nl

{triangledown} Published ahead of print on 16 December 2008.

{dagger} Present address: KWR Watercycle Research Institute, Groningenhaven 7, 3433 PE Nieuwegein, The Netherlands.

Applied and Environmental Microbiology, February 2009, p. 1201-1203, Vol. 75, No. 4
0099-2240/09/$08.00+0     doi:10.1128/AEM.02238-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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