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Titolo:
Effect of growth pH on the phospholipid contents of the membranes from alkaliphilic bacteria
Autore:
Enomoto, K; Koyama, N;
Indirizzi:
Chiba Univ, Fac Sci, Dept Chem, Inage Ku, Chiba 2608522, Japan Chiba UnivChiba Japan 2608522 Dept Chem, Inage Ku, Chiba 2608522, Japan
Titolo Testata:
CURRENT MICROBIOLOGY
fascicolo: 5, volume: 39, anno: 1999,
pagine: 270 - 273
SICI:
0343-8651(199911)39:5<270:EOGPOT>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYTOPLASMIC PH; ALKALOPHILIC BACTERIA; BACILLUS; DEPENDENCE; NA+;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Koyama, N Chiba Univ, Fac Sci, Dept Chem, Inage Ku, Chiba 2608522, Japan Chiba Univ Chiba Japan 2608522 Inage Ku, Chiba 2608522, Japan
Citazione:
K. Enomoto e N. Koyama, "Effect of growth pH on the phospholipid contents of the membranes from alkaliphilic bacteria", CURR MICROB, 39(5), 1999, pp. 270-273

Abstract

An aerobic alkaliphile YN-2000 and a facultatively anaerobic alkaliphile BL77/1 are able to grow over the wide pH range of 7-10.5, Net surface charges on the membranes from YN-2000 and BL77/1 were negative above pH 4, and the amounts were significantly increased when the bacteria were cultured at pH 10 as compared with those cultured at pH 7.5. Phospholipid contents of the membranes from both bacteria grown at pH 10 were much higher than those from the bacteria grown at pH 7.5, Phospholipids of the membranes from YN-2000 and BL77/1 were composed mainly of cardiolipin (CL), phosphatidylethanolamine (PE), and phosphatidylglycerol (PG), It is suggested that the increases by growth at pH 10 of negative charges on the membranes from the bacteria result mainly from the increases of acidic phospholipids such as CL and PG. Increases of phospholipid contents and/or negative charges on the membranes seem to contribute to the adaptation of YN-2000 and BL77/1 to an alkaline environment.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/04/20 alle ore 23:41:11