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Infection and Immunity, February 2001, p. 1178-1180, Vol. 69, No. 2
0019-9567/01/$04.00+0 DOI: 10.1128/IAI.69.2.1178-1181.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Prolonged Survival and Cytoplasmic pH
Homeostasis of Helicobacter pylori at pH 1
Kerstin
Stingl,*
Eva-Maria
Uhlemann,
Gabriele
Deckers-Hebestreit,
Roland
Schmid,
Evert P.
Bakker, and
Karlheinz
Altendorf
Abteilung Mikrobiologie, Universität
Osnabrück, D-49069 Osnabrück, Germany
Received 31 August 2000/Returned for modification 10 October
2000/Accepted 7 November 2000
In the presence of urea, Helicobacter pylori survived
for at least 3 h at pH 1. Under these conditions, the cells
maintained their cytoplasmic pH at 5.8. De novo protein synthesis
during acid shock was not essential for survival of H. pylori at pH 1.
*
Corresponding author. Mailing address: Abteilung
Mikrobiologie, Universität Osnabrück, D-49069
Osnabrück, Germany. Phone: 49 541 969 2867. Fax: 49 541 969 2870. E-mail: stingl{at}biologie.uni-osnabrueck.de.
Infection and Immunity, February 2001, p. 1178-1180, Vol. 69, No. 2
0019-9567/01/$04.00+0 DOI: 10.1128/IAI.69.2.1178-1181.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
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