Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Ferroglobus placidus gen. nov., sp. nov., a novel hyperthermophilic archaeum that oxidizes Fe2+ at neutral pH under anoxic conditions (1996)
    Springer
    Archives of microbiology 166 (1996), S. 308-314 
    Details
    ISSN: 1432-072X
    Keywords: Key words Archaea ; Hyperthermophiles ; Ferroglobus ; placidus ; Neutrophilic anaerobic Fe2+-oxidizer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A novel coccoid, anaerobic, Fe2+-oxidizing archaeum was isolated from a shallow submarine hydrothermal system at Vulcano, Italy. In addition to ferrous iron, H2 and sulfide served as electron donors. NO3 – was used as electron acceptor. In the presence of H2, also S2O3 2– could serve as electron acceptor. The isolate was a neutrophilic hyperthermophile that grew between 65° C and 95° C. It represents a novel genus among the Archaeoglobales that we name Ferroglobus. The type species is Ferroglobus placidus (DSM 10642).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002030050388
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Methanococcus thermolithotrophicus, a novel thermophilic lithotrophic methanogen (1982)
    Springer
    Archives of microbiology 132 (1982), S. 47-50 
    Details
    ISSN: 1432-072X
    Keywords: Methanogens ; Archaebacteria ; Autotrophic ; Thermophilic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An autotrophic thermophilic motile coccoid methanogen was isolated from geothermally heated sea sediments close to Naples, Italy. Growth occurs on H2/CO2 and on formate between 30 and 70°C with an optimum at 65°C. The optimal doubling time is only 55 min. The NaCl-concentration ranges from 1.3% to 8.3% with an optimum around 4%. By its G+C-content of 31.3 mol%, its subunit envelope, and by DNA-RNA hybridization the new isolate is clearly defined to be a member of the genusMethanococcus. We name itMethanococcus thermolithotrophicus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00690816
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Methanopyrus kandleri, gen. and sp. nov. represents a novel group of hyperthermophilic methanogens, growing at 110°C (1991)
    Springer
    Archives of microbiology 156 (1991), S. 239-247 
    Details
    ISSN: 1432-072X
    Keywords: Methanopyrus ; Methanogens ; Archaea ; Hyperthermophilic ; Marine ; Vents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A novel group of hyperthermophilic rod-shaped motile methanogens was isolated from a hydrothermally heated deep sea sediment (Guaymas Basin, Gulf of California) and from a shallow marine hydrothermal system (Kolbeinsey ridge, Iceland). The grew between 84 and 110°C (opt: 98°C) and from 0.2% to 4% NaCl (opt. 2%) and pH 5.5 to 7 (opt: 6.5). The isolates were obligate chemolithoautotrophes using H2/CO2 as energy and carbon sources. In the presence of sulfur, H2S was formed and cells tended to lyse. The cell wall consisted of a new type of pseudomurein containing ornithin in addition to lysine and no N-acetylglucosamine. The pseudomurein layer was covered by a detergent-sensitive protein surface layer. The core lipid consisted exclusively of phytanyl diether. The GC content of the DNA was 60 mol%. By 16S rRNA comparisons the new organisms were not related to any of the three methanogenic lineages. Based on the physiological and molecular properties of the new isolates, we describe here a new genus, which we name Methanopyrus (the “methane fire”). The type species is Methanopyrus kandleri (type strain: AV19; DSM 6324).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00262992
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    A F420-dependent NADP reductase in the extremely thermophilic sulfate-reducing Archaeoglobus fulgidus (1993)
    Springer
    Archives of microbiology 160 (1993), S. 199-205 
    Details
    ISSN: 1432-072X
    Keywords: Archaea ; Sulfate reducers ; Hyperthermophiles ; Coenzyme F420 ; Deazaflavin ; F420-dependent NADP reducatase ; Stereoselectivity ; Stereospecificity ; Archaeoglobus fulgidus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Archaeoglobus fulgidus, a sulfate-reducing Archaeon with a growth temperature optimum of 83°C, uses the 5-deazaflavin coenzyme F420 rather than pyridine nucleotides in catabolic redox processes. The organism does, however, require reduced pyridine nuclcotides for biosynthetic purposes. We describe here that the Archaeon contains a coenzyme F420-dependent NADP reductase which links anabolism to catabolism. The highly thermostable enzyme was purfied 3600-fold by affinity chromatography to apparent homogeneity in a 60% yield. The native enzyme with an apparent molecular mass of 55 kDa was composed of only one type of subunit of apparent molecular mass of 28 kDa. Spectroscopic analysis of the enzyme did not reveal the presence of any chromophoric prosthetic group. The purified enzyme catalyzed the reversible reduction of NADP (apparent K M 40 μM) with reduced F420 (apparent K M 20μM) with a specific activity of 660 U/mg (apparent V max) at pH 8.0 (pH optimum) and 80°C (temperature optimum). It was specific for both coenzyme F420 and NADP. Sterochemical investigations showed that the F420-dependent NADP reductase was Si face specific with respect to C5 of F420 and Si face specific with respect to C4 of NADP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00249125
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Thermococcus alcaliphilus sp. nov., a new hyperthermophilic archaeum growing on polysulfide at alkaline pH (1995)
    Springer
    Archives of microbiology 164 (1995), S. 390-395 
    Details
    ISSN: 1432-072X
    Keywords: Key words Archaea ; Hyperthermophiles ; Thermococcus alcaliphilus ; Polysulfide reduction ; Alkaline pH
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A novel coccoid-shaped, hyperthermophilic, heterotrophic member of the archaea was isolated from a shallow marine hydrothermal system at Vulcano Island, Italy. The isolate grew between 56 and 90° C with an optimum around 85° C. The pH range for growth was 6.5 to 10.5, with an optimum around 9.0. Polysulfide and elemental sulfur were reduced to H2S. Sulfur stimulated the growth rate. The isolate fermented yeast extract, peptone, meat extract, tryptone, and casein. Isovalerate, isobutyrate, propionate, acetate, CO2, NH3, and H2S (in the presence of S°) were detected as end products. Growth was not inhibited by H2. Based on DNA-DNA hybridization and 16S rRNA partial sequences, the new isolate represents a new species of Thermococcus, which we named Thermococcus alcaliphilus. The type strain is isolate AEDII12 (DSM 10322)
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002030050280
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Methanoplanus limicola, a plate-shaped methanogen representing a novel family, the methanoplanaceae (1982)
    Springer
    Archives of microbiology 132 (1982), S. 31-36 
    Details
    ISSN: 1432-072X
    Keywords: Methanogens ; Archaebacteria ; Cell division ; Glycoprotein ; Acetate ; Taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract An angular plate-shaped weakly motile mesophilic methanogen was isolated from a swamp of drilling waste in Italy. Growth occurs on H2/CO2 or on formate. Acetate is required in addition. The optimal doubling time is 7 h at 40° C. The cell envelope is composed most likely of glycoprotein subunits in hexagonal arrangement. The GC-content of its DNA is 47.5 mol%. On the basis of DNA-RNA hybridization it was found to represent a new family, the Methanoplanaceae within the order Methanomicrobiales.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00690813
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Thermococcus acidaminovorans sp. nov., a new hyperthermophilic alkalophilic archaeon growing on amino acids (1998)
    Springer
    Extremophiles 2 (1998), S. 109-114 
    Details
    ISSN: 1433-4909
    Keywords: Key words Archaea ; Hyperthermophiles ; Thermococcus acidaminovorans ; Defined amino acids ; Polysulfide reduction ; Alkaline pH
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract From a shallow marine hydrothermal system at Vulcano (Italy), a new hyperthermophilic member of the Archaea was isolated. The cells are coccoid – shaped and possess up to five flagella. They grow between 56° and 93°C (optimum 85°C) and pH 5.0–9.5 (optimum 9.0). The organism is strictly anaerobic and grows heterotrophically on defined amino acids and complex organic substrates such as casamino acids, yeast extract, peptone, meat extract, tryptone, and casein. Polysulfide and elemental sulfur are reduced to H2S. In the absence of polysulfide or elemental sulfur, the isolate grows at a significantly reduced rate. Growth is not influenced by the presence of H2. DNA–DNA hybridization and 16S rRNA partial sequences indicated that the new isolate belongs to the genus Thermococcus, and represents a new species, Thermococcus acidaminovorans. The type strain is isolate AEDII10 (DSM 11906).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007920050049
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...