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Titolo:
Hungry bacteria - definition and properties of a nutritional state
Autore:
Ferenci, T;
Indirizzi:
Univ Sydney, Dept Microbiol G08, Sydney, NSW 2006, Australia Univ Sydney Sydney NSW Australia 2006 ol G08, Sydney, NSW 2006, Australia
Titolo Testata:
ENVIRONMENTAL MICROBIOLOGY
fascicolo: 10, volume: 3, anno: 2001,
pagine: 605 - 611
SICI:
1462-2912(200110)3:10<605:HB-DAP>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
LIMITED CONTINUOUS-CULTURE; SIGMA-FACTOR SIGMA(S); ESCHERICHIA-COLI; STATIONARY-PHASE; NUTRIENT LIMITATION; GROWTH-KINETICS; SALMONELLA-TYPHIMURIUM; REGULATORY MUTATIONS; NEGATIVE REGULATION; GENE-REGULATION;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
56
Recensione:
Indirizzi per estratti:
Indirizzo: Ferenci, T Univ Sydney, Dept Microbiol G08, Sydney, NSW 2006, Australia Univ Sydney Sydney NSW Australia 2006 ney, NSW 2006, Australia
Citazione:
T. Ferenci, "Hungry bacteria - definition and properties of a nutritional state", ENVIRON MIC, 3(10), 2001, pp. 605-611

Abstract

Bacteria are sometimes neither starving nor under nutrient-excess conditions. When growing with suboptimal levels of nutrients, hungry bacteria express appropriate cellular responses. This review discusses approaches to defining the hunger response in both molecular and growth kinetic terms. The gene expression changes unique to hunger conditions are described, using Escherichia coli as the primary example. Metabolite changes with hunger and starvation and the differing role of the stationary phase regulator RpoS also lead to the hypothesis proposed in this review that bacteria undertake distinct approaches to hunger and starvation. Indeed, an understanding of the difference between hunger and starvation and the incompatibility between hunger and starvation responses explains some of the paradoxical mutational adaptations, such as rpoS inactivation, found in natural populations.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/08/20 alle ore 08:06:10