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Titolo:
OSMOADAPTATION BY STAPHYLOCOCCUS-AUREUS - ANALYSIS OF SEVERAL STRAINSLINKED TO FOOD POISONING OUTBREAKS
Autore:
LOUCH HA; ECK ML; MILLER KJ;
Indirizzi:
PENN STATE UNIV,DEPT FOOD SCI,BORLAND LAB 105 UNIVERSITY PK PA 16802 PENN STATE UNIV,DEPT FOOD SCI,BORLAND LAB 105 UNIVERSITY PK PA 16802
Titolo Testata:
Journal of food protection
fascicolo: 2, volume: 60, anno: 1997,
pagine: 139 - 143
SICI:
0362-028X(1997)60:2<139:OBS-AO>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
GLYCINE BETAINE; PROLINE; OSMOREGULATION; PATHOGENS; STRESS; ROLES;
Keywords:
WATER ACTIVITY; STAPHYLOCOCCUS; OSMOADAPTATION; OSMOREGULATION; COMPATIBLE SOLUTE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
H.A. Louch et al., "OSMOADAPTATION BY STAPHYLOCOCCUS-AUREUS - ANALYSIS OF SEVERAL STRAINSLINKED TO FOOD POISONING OUTBREAKS", Journal of food protection, 60(2), 1997, pp. 139-143

Abstract

The authors examined the intracellular solute composition of five strains of Staphylococcus aureus after growth in a medium of low water activity. Organic solutes within cell extracts were analyzed using an amino acid analyzer and nuclear magnetic resonance spectroscopy. Intracellular potassium content was assayed using a potassium-specific electrode. The results showed that the five S. aureus strains accumulated proline and glycine betaine intracellularly under these growth conditions. The levels of accumulated proline and glycine betaine were strikingly similar among the strains, despite differences in salt tolerance. During the course of these experiments it was also found that S. aureusstrain RN4220 (a strain commonly used in genetic studies) was selectively impaired in its ability to utilize proline during osmoadaptation at 41 degrees C.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 09:59:25