ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
    Online Resource
    Online Resource
    Cham :Springer International Publishing :
    Keywords: Microbial ecology. ; Ecology . ; Soil science. ; Microbial genetics. ; Environment. ; Earth sciences. ; Microbial Ecology. ; Terrestial Ecology. ; Soil Science. ; Microbial Genetics. ; Environmental Sciences. ; Earth Sciences.
    Description / Table of Contents: Chapter 1: A Brief Introduction to Hot Desert Environments: Climate, Geomorphology, Habitats and Soils -- Chapter 2: Novel methods for studying the structure and function of hot desert microorganisms and their communities -- Chapter 3: Phototrophic Mats of the Desert: The Bacteria of the Biological Soil Crust Community- Chapter 4: Microbial Ecology of Hot Desert Soils -- Chapter 5: Biology of Desert Endolithic Habitats -- Chapter 6: Journey of a thousand miles: The evolution of our understanding of viruses in hot Deserts -- Chapter 7: C, N and P nutrient cycling in Drylands -- Chapter 8: Diversity and plant growth promoting properties of microbiomes associated with plants in desert soils -- Chapter 9: Insights of Extreme Desert Ecology to the Habitats and Habitability of Mars -- Chapter 10: Survival under stress: Microbial adaptation in hot desert soils -- Chapter 11: The response of soil microbial communities to hydration and desiccation cycles in hot desert ecosystems -- Chapter 12: Hot Desert Microbiology: Perspectives in a Warming World.
    Abstract: This book covers the wider aspects of the microbiology of hot desert soil ecosystems, compiling disparate information from a range of relevant desert soil microbial fields. The reader learns about microbial ecology of the more dominant and possibly most important desert habitats, detailing the phylogenetic and functional diversity of these different habitats as well as their potential role in desert ecosystem ecology. Particular attention is also given to microbial stress adaptation in hot desert soils. Furthermore, it is the first volume in this particular field to cover modern metagenomics technologies that can be applied to studies of all aspects of desert microbial communities. Additionally, the book explores viruses and viral communities, which are among the least studied (and little understood) components of desert soil microbial communities. Particular attention is also given to the roles of desert microbial communities in biogeochemical cycling of carbon, nitrogen and phosphorus. Through this book the reader discovers how desert microbiology has been at the forefront of Astrobiology and how it may be used conceptually in future terraforming strategies. Desert ecosystems are increasingly coming into focus given the impacts of climate change and desertification trends, making this volume particularly timely. Each of the chapters is authored by leading international researchers and is a must-read for microbial ecologists. .
    Type of Medium: Online Resource
    Pages: XVI, 349 p. 49 illus. in color. , online resource.
    Edition: 1st ed. 2022.
    ISBN: 9783030984151
    Series Statement: Ecological Studies, Analysis and Synthesis, 244
    DDC: 579.17
    Language: English
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-0983
    Keywords: Yeast ; Heterologous gene expression ; Sulfolobus ; Hyperthermophile phosphoglycerate kinase ; Archaea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The gene encoding phosphoglycerate kinase (PGK) from the ArchaeonSulfolobus solfataricus, an organism growing optimally at 87°C, was inserted into a yeast expression vector under the control of the galactose-inducibleGAL1 yeast promoter. This vector was then transformed into apgk::TRP1 yeast mutant, a strain inhibited for growth on galactose or glucose due to its lack of PGK enzyme. Slow-growing transformants were obtained on galactose plates at 37°C, but not 28°C. These transformants contained low levels of transcripts of the heterologous gene and low amounts of thermostable PGK activity. Weak expression of the hyperthermophile gene in yeast a mesophile, therefore enabled complementation of the yeastpgk defect at 37°C but not at 28°C.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-0983
    Keywords: Key words Yeast ; Heterologous gene expression ; Sulfolobus ; Hyperthermophile phosphoglycerate kinase ; Archaea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The gene encoding phosphoglycerate kinase (PGK) from the Archaeon Sulfolobus solfataricus, an organism growing optimally at 87 °C, was inserted into a yeast expression vector under the control of the galactose-inducible GAL1 yeast promoter. This vector was then transformed into a pgk::TRP1 yeast mutant, a strain inhibited for growth on galactose or glucose due to its lack of PGK enzyme. Slow-growing transformants were obtained on galactose plates at 37 °C, but not 28 °C. These transformants contained low levels of transcripts of the heterologous gene and low amounts of thermostable PGK activity. Weak expression of the hyperthermophile gene in yeast, a mesophile, therefore enabled complementation of the yeast pgk defect at 37 °C but not at 28 °C.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 56 (1988), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The HSP70 genes of eukaryotes show up to 50% nucleotide sequence homology to the dnaK gene of Escherichia coli. This extreme structure conservation implies conservation of a function that may be needed by all cells, suggesting that other bacteria may have sequences related to HSP70 and dnaK. Amongst other functions, HSP70-like proteins may act to limit thermal protein denaturation. In this study DNA isolated from thermophilic archaebacteria (from the family Desulfurococcus) and thermophilic eubacteria (from the families Bacillus and Thermus) was probed with sequences from a heat shock inducible HSP70 gene of the yeast Saccharomyces cerevisiae. Hybridization was detected under conditions of low stringency, indicating the existence of HSP70-related sequences in the thermophilic bacteria studied.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 143 (1996), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Hyperthermophiles exist in conditions which present an increased threat to the informational integrity of their DNA, particularly by hydrolytic damage. As in mesophilic organisms, specific activities must exist to restore and protect this template function of DNA. In this study we have demonstrated the presence of thermally stable uracil-DNA glycosylase activities in seven hyperthermophiles; one bacterial: Thermotoga maritima, and six archaeal: Sulfolobus solfataricus, Sulfolobus shibatae, Sulfolobus acidocaldarius, Thermococcus litoralis, Pyrococcus furiosus and Pyrobaculum islandicum. Uracil-DNA glycosylase inhibitor protein of the Bacillus subtilis bacteriophage PBS1 shows activity against all of these, suggesting a highly conserved tertiary structure between hyperthermophilic and mesophilic uracil-DNA glycosylases.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 43 (1987), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A comparison of extracellular proteases from New Zealand isolates of the genus Thermus demonstrated a number of minor but significant structural and functional differences. The comparison, based on molecular weights, isoelectric points, inhibitor responses, substrate specificity, pH optima and thermostability suggested that the four proteases were a closely related family.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 200 (2001), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: We report the first attempts to describe thermophilic bacterial communities in Indonesia's thermal springs using molecular phylogenetic analyses. 16S rRNA genes from laboratory cultures and DNA directly amplified from three hot springs in West Java were sequenced. The 22 sequences obtained were assignable to the taxa Proteobacteria, Bacillus and Flavobacterium, including a number of clades not normally associated with thermophily.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillan Magazines Ltd.
    Nature 407 (2000), S. 466-467 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] On page 508 of this issue, Ruepp and colleagues describe the complete genome sequence of the acid- and heat-loving microorganism Thermoplasma acidophilum . This hardy organism, which lacks a cell wall, grows best on organic substrates at pH 2 and 59 °C. It was first ...
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Microbiology 58 (2004), S. 649-690 
    ISSN: 0066-4227
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Notes: The Antarctic continent harbors a range of specialized and sometimes highly localized microbial biotopes. These include biotopes associated with desiccated mineral soils, rich ornithogenic soils, glacial and sea ice, ice-covered lakes, translucent rocks, and geothermally heated soils. All are characterized by the imposition of one or more environmental extremes (including low temperature, wide temperature fluctuations, desiccation, hypersalinity, high periodic radiation fluxes, and low nutrient status). As our understanding of the true microbial diversity in these biotopes expands from the application of molecular phylogenetic methods, we come closer to the point where we can make an accurate assessment of the impacts of environmental change, human intervention, and other natural and unnatural impositions. At present, it is possible to make reasonable predictions about the physical effects of local climate change, but only general predictions on possible changes in microbial community structure. The consequences of some direct human impacts, such as physical disruption of microbial soil communities, are obvious if not yet quantitated. Others, such as the dissemination of nonindigenous microorganisms into indigenous microbial communities, are not yet understood.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Extremophiles 3 (1999), S. 283-291 
    ISSN: 1433-4909
    Keywords: Key words Benzonitrile ; Nitrile ; Nitrilase ; Thermophilic ; Thermostable
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Nitrilase activity was induced in the thermophilic bacterium Bacillus pallidus strain Dac521 by growth on benzonitrile-supplemented minimal medium. The enzyme had a subunit relative molecular mass of 41 kDa but was purified as a complex with a putative GroEL protein (total M r, 600 kDa). The enzyme catalyzed the hydrolysis of aliphatic, aromatic, and heterocyclic nitriles with widely varying k cat/K M values, primarily the result of differences in substrate affinity. Of the nitriles tested, 4-cyanopyridine was hydrolyzed at the fastest rate. Substitution of benzonitrile at the meta or para position either had no effect on catalytic rate or enhanced k cat, while ortho-substitution was strongly inhibitory, probably because of steric hindrance. The effect of catalytic inhibitors was consistent with the presence of active site thiol residues although activity was little affected by putative thiol reagents such as iodoacetate, iodoacetamide, and N-methylmaleimide. Enzymatic activity was constant between pH 6 and 9 with an optimum at pH 7.6. The optimal temperature for activity was 65°C with rapid activity loss at higher temperatures. The purified nitrilase-GroEL complex had the following half-lives of activity: 8.4 h at 50°C, 2.5 h at 60°C, 13 min at 70°C, and less than 3 min at 80°C.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...