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Titolo:
BIOMETRIC-ANALYSIS OF PHYSIOLOGICALLY STRUCTURED PURE BACTERIAL CULTURES RECOVERING FROM STARVATION
Autore:
WILHELM R; HELLER O; BOHLAND M; TOMASCHEWSKI C; KLEIN I; KLAUTH P; TAPPE W; GROENEWEG J; SOEDER CJ; JANSEN P; MEYER G;
Indirizzi:
KFA JULICH GMBH,FORSCHUNGSZENTRUM,INST BIOL STOFFAUSTAUSCHS ICG 6,POSTFACH 1913 D-52425 JULICH GERMANY KFA JULICH GMBH,FORSCHUNGSZENTRUM,ZENTRAL INST ANGEW MATH D-52425 JULICH GERMANY
Titolo Testata:
Canadian journal of microbiology
fascicolo: 4, volume: 44, anno: 1998,
pagine: 399 - 404
SICI:
0008-4166(1998)44:4<399:BOPSPB>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
CELL;
Keywords:
PHYSIOLOGICALLY HETEROGENEOUS POPULATIONS; CELL VOLUME DISTRIBUTION; POPULATION DYNAMICS; PSEUDOMONAS FLUORESCENS; NITROSOMONAS EUROPAEA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
R. Wilhelm et al., "BIOMETRIC-ANALYSIS OF PHYSIOLOGICALLY STRUCTURED PURE BACTERIAL CULTURES RECOVERING FROM STARVATION", Canadian journal of microbiology, 44(4), 1998, pp. 399-404

Abstract

Cell volume distribution patterns were used to characterize the status of physiologically heterogeneous monospecific populations of bacteria. Such physiologically structured populations typically consist of subpopulations of cells in different metabolic and regulatory states. During recovery from starvation the differentiation of active (growing, proliferating) and quiescent (nonproliferating) subpopulations becomesdetectable. Since cell volume distributions may be distorted by background noise or debris, we developed a method to extrapolate size distributions from a reduced set of reliable data. The extrapolation procedure is based upon a lognormal distribution of cell sizes. By the same approach we were able to differentiate between subpopulations even when their size ranges overlapped. The analyses of size distributions were also used, partly in combination with fluorescence microscopy, to investigate the population dynamics of Pseudomonas fluorescens and Nitrosomonas europaea during recovery from energy deprivation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 02:21:08