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Acid adaptation induces cross-protection against environmental stresses in Salmonella typhimurium
Open accessAbstract
The relationship of acid adaptation to tolerance of other environmental stresses was examined in Salmonella typhimurium. S. typhimurium was adapted to acid by exposing the cells to mildly acidic conditions (pH 5.8) for one to two cell doublings. Acid-adapted cells were found to have increased tolerance towards various stresses including heat, salt, an activated lactoperoxidase system, and the surface-active agents crystal violet and polymyxin B. Acid adaptation increased cell surface hydrophobicity. Specific outer membrane proteins were induced by acid adaptation, but the lipopolysaccharide component appeared to be unaltered. These results show that acid adaptation alters cellular resistance to a variety of environmental stresses. The mechanism of acid-induced cross-protection involved changes in cell surface properties in addition to the known enhancement of intracellular pH homeostasis.
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Cited by
Marteau, P., Minekus, M., Havenaar, R., & Huis In’t Veld, J. H. J. (1997) · Journal of Dairy Science · doi:10.3168/jds.s0022-0302(97)76027-2 · Cited by 488
Acid stress responses in enterobacteria
Bearson, S., Bearson, B., & Foster, J. W. (2006) · FEMS Microbiology Letters · doi:10.1111/j.1574-6968.1997.tb10238.x · Cited by 486
Hall, H. K., & Foster, J. W. (1996) · Journal of Bacteriology · doi:10.1128/jb.178.19.5683-5691.1996 · Cited by 214
Álvarez-Ordóñez, A., Fernández, A., López, M., Arenas, R., & Bernardo, A. (2008) · International Journal of Food Microbiology · doi:10.1016/j.ijfoodmicro.2008.01.015 · Cited by 217
Álvarez-Ordóñez, A., Fernández, A., López, M., & Bernardo, A. (2009) · Food Microbiology · doi:10.1016/j.fm.2008.11.002 · Cited by 95
Metadata
- Authors
- Leyer, G. J., & Johnson, E. A.
- Venue
- Applied and Environmental Microbiology
- Publisher
- American Society for Microbiology
- Published
- 1993-06
- Volume
- 59
- Issue
- 6
- Pages
- 1842-1847
- ISSN
- 0099-2240 (ISSN-L)
- 1098-5336
- OpenAlex
- W1526298714
- Cited by
- 413
- References
- 0
- FWCI
- 4.05
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Leyer, G. J., & Johnson, E. A. (1993). Acid adaptation induces cross-protection against environmental stresses in Salmonella typhimurium. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.59.6.1842-1847.1993
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