Alkaline adaptation induces cross-protection against some environmental stresses and morphological change in Vibrio parahaemolyticus.
The relationship between alkaline adaptation and the resistance against environmental stresses was examined in Vibrio parahaemolyticus. Alkali-adapted cells were found to have increased resistance against various stresses, including heat, crystal violet, deoxycholic acid, and hydrogen peroxide. However, alkali-adapted cells showed no increased resistance against acid stress and heat-adapted cells did not show increased resistance against alkaline stress. Furthermore, alkaline treatment induced cell elongation with heterogenous size of the bacterium.
Koga
Tetsuro
T
Department of Food Microbiology, Tokushima University School of Medicine, 3-18-15 Kuramoto-cho Tokushima 770-8503, Japan. koga@nutr.med.tokushima-u.ac.jp
Katagiri
Tikae
T
Hori
Hiroko
H
Takumi
Kenji
K
D000222:Adaptation, Physiological; D003840:Deoxycholic Acid / Q000494:pharmacology; D004926:Escherichia coli / Q000502:physiology; D005840:Gentian Violet / Q000494:pharmacology; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D008858:Microscopy, Phase-Contrast; D018384:Oxidative Stress; D012486:Salmonella typhimurium; D014736:Vibrio parahaemolyticus / Q000166:cytology / Q000502:physiology*
D003840:Deoxycholic Acid; D005840:Gentian Violet