Understanding Listeria monocytogenes' Response to Alkaline Conditions
Author Information
Author(s): Efstathios Giotis, Arunachalam Muthaiyan, Ian S. Blair, Brian J. Wilkinson, David A. McDowell
Primary Institution: University of Ulster
Hypothesis
How does Listeria monocytogenes adapt to alkaline stress?
Conclusion
The study found that Listeria monocytogenes can develop a robust response to alkaline conditions, enhancing its survival in harsh environments.
Supporting Evidence
- L. monocytogenes showed significant alkali tolerance after exposure to pH 9.5.
- The study identified multiple genes involved in stress response and cell wall structure.
- Alkali-induced proteins may provide cross-protection against other stressors.
Takeaway
This study shows that Listeria can handle high pH levels, which helps it survive in food and our stomachs.
Methodology
The study used cDNA microarray and two-dimensional gel electrophoresis to analyze gene expression and protein content in Listeria monocytogenes under alkaline stress.
Limitations
The study may not fully capture all proteins regulated at the enzymatic activity level.
Statistical Information
P-Value
0.000
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website