Exiguobacterium oxidotolerans sp. nov., a novel alkaliphile exhibiting high catalase activity
Isao Yumoto,Isao Yumoto,Megumi Hishinuma-Narisawa,Kikue Hirota,Tomohiro Shingyo,Tomohiro Shingyo,Fumihiko Takebe,Fumihiko Takebe,Yoshinobu Nodasaka,Hidetoshi Matsuyama,Isao Hara +10 more
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TL;DR: On the basis of phenotypic characteristics, phylogenetic data and DNA-DNA relatedness data, the isolate merits classification as a novel species, for which the name Exiguobacterium oxidotolerans sp.
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Abstract: A novel alkaliphile was isolated from a drain of a fish processing plant. The isolate grew at a pH range of 7-10. Cells were Gram-positive, facultatively aerobic, motile rods with peritrichous flagella. Colonies were orange or yellow in colour. Catalase and oxidase reactions were positive. The isolate grew in 0-12 % NaCl but not above 15 % NaCl. Its cell extract exhibited 567 times higher catalase activity than an Escherichia coli cell extract. The major cellular fatty acids were iso-C(13 : 0), anteiso-C(13 : 0), iso-C(15 : 0), iso-C(16 : 0), iso-C(17 : 0), anteiso-C(17 : 0) and iso-C(17 : 1). Its DNA G+C content was 46.7 mol%. Phylogenetic analysis based on 16S rRNA gene sequencing and chemotaxonomic data indicated that strain T-2-2(T) is a member of the genus Exiguobacterium. DNA-DNA hybridization revealed a low relatedness of the isolate to several phylogenetic neighbours (less than 25 %). On the basis of phenotypic characteristics, phylogenetic data and DNA-DNA relatedness data, the isolate merits classification as a novel species, for which the name Exiguobacterium oxidotolerans sp. nov. is proposed. The type strain is T-2-2(T) (=JCM 12280(T)=NCIMB 13980(T)).
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Citations
Exiguobacterium oxidotolerans , a halotolerant plant growth promoting rhizobacteria, improves yield and content of secondary metabolites in Bacopa monnieri (L.) Pennell under primary and secondary salt stress
TL;DR: From the results of this investigation, it can be concluded that the treatments with salt tolerant PGPR can be a useful strategy in the enhancement of biomass yield and saponin contents in B. monnieri in salt stressed environments.
213
Exiguobacterium: an overview of a versatile genus with potential in industry and agriculture
Ramesh Chand Kasana,C. B. Pandey +1 more
TL;DR: A broad view is provided of the versatile genus Exiguobacterium and its potential for applications in agriculture, the environment and industry, as well as the underlying genomic determinants that drive its diversity and adaptability to various extreme environments.
152
Characterization of Exiguobacterium isolates from the Siberian permafrost. Description of Exiguobacterium sibiricum sp. nov.
Debora F. Rodrigues,Johan Goris,Tatiana A. Vishnivetskaya,Tatiana A. Vishnivetskaya,David Gilichinsky,Michael F. Thomashow,James M. Tiedje +6 more
TL;DR: Three Gram-positive bacterial strains, previously isolated from Siberian permafrost, were characterized and taxonomically classified and comprise a novel species, for which the name Exiguobacterium sibiricum sp.
113
Biogeography of two cold-adapted genera: Psychrobacter and Exiguobacterium
Debora F. Rodrigues,Ederson da Conceição Jesus,Héctor L. Ayala-del-Río,Vivian Helena Pellizari,David Gilichinsky,Lycely Del C. Sepulveda-Torres,James M. Tiedje +6 more
TL;DR: Q-PCR quantifies members of these genera in 54 soil or sediment samples from polar, temperate and tropical environments to determine to what extent they are selected by cold environments, and confirms that both genera were found in all three climatic zones.
Exiguobacterium indicum sp. nov., a psychrophilic bacterium from the hamta glacier of the Himalayan mountain ranges of India
TL;DR: The phenotypic, chemotaxonomic and phylogenetic data suggest that strain HHS 31(T) merits the status of a novel species, for which the name Exiguobacterium indicum sp.
97
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