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Isolation, identification and characterization of highly tellurite-resistant, tellurite-reducing bacteria from Antarctica
https://nipr.repo.nii.ac.jp/records/10054
https://nipr.repo.nii.ac.jp/records/1005449e1adfd-4713-4d5d-a3f7-73902de66aee
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2014-10-14 | |||||
タイトル | ||||||
タイトル | Isolation, identification and characterization of highly tellurite-resistant, tellurite-reducing bacteria from Antarctica | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Isolation, identification and characterization of highly tellurite-resistant, tellurite-reducing bacteria from Antarctica | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Tellurite reduction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Tellurite resistance | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Antarctic strains | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Tellurium nanostructures | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Metalloids | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Tellurite reduction | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Tellurite resistance | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Antarctic strains | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Tellurium nanostructures | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Metalloids | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Arenas, Felipe A.
× Arenas, Felipe A.× Pugin, Benoit× Henriquez, Nicole A.× Arenas-Salinas, Mauricio A.× Diaz-Vasquez, Waldo A.× Pozo, Maria F.× Munoz, Claudia M.× Chasteen, Thomas G.× Perez-Donoso, Jose M.× Vasquez, Claudio C.× Arenas, Felipe A.× Pugin, Benoit× Henriquez, Nicole A.× Arenas-Salinas, Mauricio A.× Diaz-Vasquez, Waldo A.× Pozo, Maria F.× Munoz, Claudia M.× Chasteen, Thomas G.× Perez-Donoso, Jose M.× Vasquez, Claudio C. |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The tellurium oxyanion, tellurite, is extremely noxious to most living organisms. Its toxicity has been mainly related to the generation of reactive oxygen species (ROS) as well as to an unbalancing of the thiol:redox buffering system. Nevertheless, a few bacteria are capable of thriving at high tellurite concentrations. One mechanism of resistance is the enzymatic and non-enzymatic reduction of tellurite to the less toxic elemental tellurium. This reduction generates nano- to micrometric tellurium crystals that display different shapes and sizes.To date, a very limited number of highly tellurite-resistant and tellurite-reducing bacterial species are available from international culture collections. In this work, we decided to look for tellurite-reducing bacteria from an extreme environment, Antarctica. This environment exhibits a combination of several extreme factors such as high UV-radiation and desiccation and freezing conditions that impact directly on the local biodiversity. Since, as does, all these factors induce ROS formation, we hypothesized that Antarctic bacteria could also exhibit tellurite-resistance. In this context, we isolated 123 tellurite-resistant bacteria, and characterized six new tellurite-resistant and tellurite-reducing bacterial strains from samples collected in Antarctica. These strains were identified according to their 16S rRNA gene sequence as Staphylococcus hameolyticus, Staphylococcus sciuri, Acinetobacter haemolyticus, Pseudomonas lini, and two strains of Psychrobacter immobilis.The isolates display tellurite-resistance about 35- to 500-fold higher than Escherichia coli (Te-sensitive organism), and a high level of tellurite reduction which might be interesting for an application in the field of bioremediation or nanoparticle biosynthesis. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | テルル(Te)のイオンであるtellurite(亜テルル酸塩,TeO2)は,活性酸素種を生成するため多くの生物にとって極めて有害である。本研究では,南極の極限環境からtellurite還元細菌の探索を試みた。高い紫外線強度や乾燥,凍結など,活性酸素種が誘導されやすい条件にあるため,南極の細菌はtellurite耐性を示すと考えられる。その結果,123株のtellurite耐性菌が分離された。16SrRNA遺伝子の解析によりStaphylococcus hameolyticus, S. sciuri, Acinetobacter haemolyticusなどと同定されたこれらの分離株は,大腸菌の35~500倍のtellurite耐性と,高いレベルのtellurite還元能を示した。この結果は,生物的環境修復などへの応用の点で興味深い。 | |||||
書誌情報 |
Polar science en : Polar science 巻 8, 号 1, p. 40-52, 発行日 2014-03 |
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出版者 | ||||||
出版者 | 国立極地研究所 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12240481 | |||||
論文ID(NAID) | ||||||
識別子タイプ | NAID | |||||
関連識別子 | 110009687673 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.1016/j.polar.2014.01.001 | |||||
関連名称 | 10.1016/j.polar.2014.01.001 |