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Titolo:
COMPATIBLE SOLUTES IN LUMINESCENT BACTERIA OF THE GENERA VIBRIO, PHOTOBACTERIUM AND PHOTORHABDUS (XENORHABDUS) - OCCURRENCE OF ECTOINE, BETAINE AND GLUTAMATE
Autore:
SCHMITZ RPH; GALINSKI EA;
Indirizzi:
UNIV BONN,INST MIKROBIOL & BIOTECHNOL,MEEKENHEIMER ALLEE 168 D-53115 BONN GERMANY UNIV BONN,INST MIKROBIOL & BIOTECHNOL D-53115 BONN GERMANY
Titolo Testata:
FEMS microbiology letters
fascicolo: 2-3, volume: 142, anno: 1996,
pagine: 195 - 201
SICI:
0378-1097(1996)142:2-3<195:CSILBO>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
ESCHERICHIA-COLI; TETRAHYDROPYRIMIDINES; OSMOREGULATION; ACCUMULATION; RELATEDNESS; OSMOLYTES; ACID; NOV;
Keywords:
COMPATIBLE SOLUTE; ECTOINE; BETAINE; OSMOADAPTATION; VIBRIO FISCHERI; PHOTOBACTERIUM SP; PHOTORHABDUS LUMINESCENS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
R.P.H. Schmitz e E.A. Galinski, "COMPATIBLE SOLUTES IN LUMINESCENT BACTERIA OF THE GENERA VIBRIO, PHOTOBACTERIUM AND PHOTORHABDUS (XENORHABDUS) - OCCURRENCE OF ECTOINE, BETAINE AND GLUTAMATE", FEMS microbiology letters, 142(2-3), 1996, pp. 195-201

Abstract

Marine luminescent bacteria of the genera Vibrio and Photobacterium as well as Photorhabdus (Xenorhabdus) luminescens, an enterobacterium mutualistically associated with insect pathogenic soil nematodes, display different levels of salt tolerance when grown on nutrient broth medium (5% w/v NaCl for marine species and 3% w/v for Prb. luminescens). Osmolytes (compatible solutes) synthesized and/or accumulated for haloadaptation were identified using HPLC techniques and C-13-NMR spectroscopy. All species investigated in this study accumulated betaine and ectoine (1,4,5,6-tetrahydro-2-methyl-4-pyrimidine carboxylic acid) fromthe medium under elevated osmotic conditions. External supply of osmolytes improved both growth and salt tolerance. Only species belonging to the genus Vibrio were able to synthesize the compatible solute ectoine de novo. Glutamate also participated in osmoadaptation while trehalose was only found in V. fischeri species. In Prb. luminescens C-13-NMR spectroscopy also revealed the presence of choline when grown on complex medium.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 10:33:43