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Titolo:
THE CHARACTERIZATION AND DESCRIPTION OF REPRESENTATIVES OF G-BACTERIAFROM ACTIVATED-SLUDGE PLANTS
Autore:
BLACKALL LL; ROSSETTI S; CHRISTENSSON C; CUNNINGHAM M; HARTMAN P; HUGENHOLTZ P; TANDOI V;
Indirizzi:
UNIV QUEENSLAND,DEPT MICROBIOL,ADV WASTEWATER MANAGEMENT CTR BRISBANEQLD 4072 AUSTRALIA CNR,WATER RES INST ROME ITALY ACAD SCI CZECH REPUBL,INST HYDROBIOL CR-37005 CESKE BUDEJOVICE CZECH REPUBLIC
Titolo Testata:
Letters in applied microbiology
fascicolo: 1, volume: 25, anno: 1997,
pagine: 63 - 69
SICI:
0266-8254(1997)25:1<63:TCADOR>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
BIOLOGICAL PHOSPHATE REMOVAL; PURPLE NONSULFUR BACTERIA; PROTEOBACTERIA; POLYPHOSPHATE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
L.L. Blackall et al., "THE CHARACTERIZATION AND DESCRIPTION OF REPRESENTATIVES OF G-BACTERIAFROM ACTIVATED-SLUDGE PLANTS", Letters in applied microbiology, 25(1), 1997, pp. 63-69

Abstract

The name Tetracoccus cechii is proposed for two strains of the tetradarranged cocci, previously known as 'G' bacteria, which were isolatedfrom laboratory scale activated sludge plants in the Czech Republic and in Italy. They were morphologically, phenotypically and phylogenetically characterized and found to comprise a novel lineage in the alpha-3 group of the proteobacterial phylum in the domain Bacteria. The strains are Gram-negative and produce intracellular inclusions of poly-beta-hydroxybutyrate. Although commonly seen in activated sludge mixed liquor as cocci 1-2 mu m in diameter, arranged in tetrads, in pure culture they can also grow in amorphous aggregations and the cells are generally more variable in their size and shape with coccobacilli as wellas cocci being present. They are not able to grow phototrophically, nor can they reduce nitrate beyond nitrite nor grow anaerobically. The closest phylogenetic neighbours of T. cechii are Rhodobacter sphaeroides and R. capsulatus which are 93% similar by 16S rDNA comparison. Tetracoccus cechii is oxidase- and catalase-positive, non-motile and has an optimal growth temperature between 25 degrees and 35 degrees C. The16S rRNA of T. cechii has a 21 nucleotide deletion in the V9 region (Escherichia coli positions 1258-1278) and this feature is a unique molecular synapomorphy in the alpha-3 group.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 00:34:02