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Titolo:
Thermoanaerobacter yonseiensis sp nov., a novel extremely thermophilic, xylose-utilizing bacterium that grows at up to 85 degrees C
Autore:
Kim, BC; Grote, R; Lee, DW; Antranikian, G; Pyun, YR;
Indirizzi:
Yonsei Univ, Dept Biotechnol, Seodaemun Gu, Seoul 120749, South Korea Yonsei Univ Seoul South Korea 120749 aemun Gu, Seoul 120749, South Korea Yonsei Univ, Bioprod Res Ctr, Seodaemun Gu, Seoul 120749, South Korea Yonsei Univ Seoul South Korea 120749 aemun Gu, Seoul 120749, South Korea Tech Univ Hamburg Harburg, Inst Tech Microbiol, D-21073 Hamburg, Germany Tech Univ Hamburg Harburg Hamburg Germany D-21073 21073 Hamburg, Germany
Titolo Testata:
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
, volume: 51, anno: 2001,
parte:, 4
pagine: 1539 - 1548
SICI:
1466-5026(200107)51:<1539:TYSNAN>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE LIQUID-CHROMATOGRAPHY; GLUCOSE ISOMERASE GENE; CLOSTRIDIUM-THERMOHYDROSULFURICUM; ANAEROBIC BACTERIUM; COMB-NOV; LIPID-COMPOSITION; ESCHERICHIA-COLI; CLONING; BROCKII; RECLASSIFICATION;
Keywords:
Thermoanaerobacter yonseiensis; thermophiles;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Pyun, YR Yonsei Univ, Dept Biotechnol, Seodaemun Gu, Shinchondong 134, Seoul 120749, South Korea Yonsei Univ Shinchondong 134 Seoul South Korea 120749 outh Korea
Citazione:
B.C. Kim et al., "Thermoanaerobacter yonseiensis sp nov., a novel extremely thermophilic, xylose-utilizing bacterium that grows at up to 85 degrees C", INT J SY EV, 51, 2001, pp. 1539-1548

Abstract

A novel strictly anaerobic, extremely thermophilic, spore-forming and xylose-utilizing bacterium, designated strain KB-1(TP) (type and patent strain), was isolated from a geothermal hot stream at Sileri on Java island, Indonesia. The cells were rod-shaped, motile and had terminal spores. The newly isolated strain stained Gram-positive and the cells occurred singly or in pairs during the exponential growth phase. The temperature optimum for growth was 75 degreesC and growth occurred in the range 50-85 degreesC. The pH range for growth was 4.5-9.0. with an optimum at ph 6.5. Strain KB-1(TP) grew chemo-organotrophically by fermenting a wide range of substrates such as glucose, fructose, D-xylose, lactose, maltose, sucrose, mannose, galactose,cellobiose. pullulan and soluble starch. Arabinose, xylan, cellulose, olive oil and Tween 80 were not fermented. The predominant fermentation end products after growth on glucose were lactate, acetate, ethanol, CO2 and smallamounts of isovaleric acid, butyric acid, propionic acid, 1-pentanol and 2-propanol. Thiosulfate was reduced to H2S. Strain KB-1(TP) was sensitive totetracycline, chloramphenicol, penicillin G, neomycin, kanamycin, vancomycin and rifampicin at concentrations of 100 mug ml(-1). No effect was observed with chloramphenicol and neomycin at concentrations of 10 mug ml(-1). This indicates that strain KB-1(TP) belongs to the bacterial domain. The G+C content of the DNA was 37 mol%. The comparison of the 16S rDNA sequence to that of closely related strains revealed that strain KB-1(TP) belonged to clostridial cluster V, showing highest sequence identities (92.7%) to members of the genus Thermoanaerobacter. Taking into account the physiological and molecular properties of the new isolate, it is proposed that strain KB-1(TP) should be classified as a new species of the genus Thermoanaerobacter, designated Thermoanaerobacter yonseiensis. The type strain, KB-1(TP) has been deposited in the Korean Federation of Culture Collections (KFCC 11116(P)) as a patent strain and in the Deutsche Sammlung von Mikroorganismen und Zellkulturen as a type strain (= DSM 13777(T)).

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Documento generato il 06/04/20 alle ore 08:28:43