Paenibacillus marinum sp. nov., a thermophilic xylanolytic bacterium isolated from a marine hot spring in Tunisia.
J Basic Microbiol
; 53(11): 877-83, 2013 Nov.
Article
em En
| MEDLINE
| ID: mdl-23456638
ABSTRACT
Among a large collection of Tunisian hot springs bacterial isolates a bacterial strain, THE22(T) , with xylanolytic properties was identified. The bacterium was isolated from a natural hot spring "Ain Echefa" at Mediteranean sea (Korbous, North-Eastern Tunisia). The novel strain was Gram positive, spore-forming, rod-shaped, facultatively anaerobic and grew optimally under conditions of 55 °C, 1% (w/v) NaCl and pH 7-8. The 16S rRNA gene sequence analysis showed that strain THE22(T) fell within the radiation of the cluster comprising Paenibacillus species with Paenibacillus phyllosphaerae PALXIL04(T) as the closest phylogenetic neighbour (95.8%). The predominant components in the fatty methyl ester profile were iso-C160 (34.46%), C160 (19.64%), anteiso-C150 (19.18%) and anteiso-C170 (18.11%). The major respiratory quinone was menaquinone-7 (MK-7). The diamino acid found in the cell-wall peptidoglycan was meso-diaminopimelic acid. The base composition of DNA was 56 mol%. Based on the polyphasic taxonomic data, strain THE-22(T) (=DSM 18499(T) = LMG 23758(T) ) was recognized as a novel species within the genus Paenibacillus. The name Paenibacillus marinum sp. nov. is proposed.
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MEDLINE
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Paenibacillus
País/Região como assunto:
Africa
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En
Ano de publicação:
2013
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Article