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  • *Ecosystem  (3)
  • American Association for the Advancement of Science (AAAS)  (3)
  • American Association of Petroleum Geologists (AAPG)
  • American Physical Society
  • Cambridge University Press
  • Cell Press
  • Springer Nature
  • 2005-2009  (3)
  • 1965-1969
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Keywords
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  • American Association for the Advancement of Science (AAAS)  (3)
  • American Association of Petroleum Geologists (AAPG)
  • American Physical Society
  • Cambridge University Press
  • Cell Press
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  • 1
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    Drought sensitivity of the Amazon rainforest (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-03-07
    Description: Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate climate change through carbon losses and changed surface energy balances. We used records from multiple long-term monitoring plots across Amazonia to assess forest responses to the intense 2005 drought, a possible analog of future events. Affected forest lost biomass, reversing a large long-term carbon sink, with the greatest impacts observed where the dry season was unusually intense. Relative to pre-2005 conditions, forest subjected to a 100-millimeter increase in water deficit lost 5.3 megagrams of aboveground biomass of carbon per hectare. The drought had a total biomass carbon impact of 1.2 to 1.6 petagrams (1.2 x 10(15) to 1.6 x 10(15) grams). Amazon forests therefore appear vulnerable to increasing moisture stress, with the potential for large carbon losses to exert feedback on climate change.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Phillips, Oliver L -- Aragao, Luiz E O C -- Lewis, Simon L -- Fisher, Joshua B -- Lloyd, Jon -- Lopez-Gonzalez, Gabriela -- Malhi, Yadvinder -- Monteagudo, Abel -- Peacock, Julie -- Quesada, Carlos A -- van der Heijden, Geertje -- Almeida, Samuel -- Amaral, Ieda -- Arroyo, Luzmila -- Aymard, Gerardo -- Baker, Tim R -- Banki, Olaf -- Blanc, Lilian -- Bonal, Damien -- Brando, Paulo -- Chave, Jerome -- de Oliveira, Atila Cristina Alves -- Cardozo, Nallaret Davila -- Czimczik, Claudia I -- Feldpausch, Ted R -- Freitas, Maria Aparecida -- Gloor, Emanuel -- Higuchi, Niro -- Jimenez, Eliana -- Lloyd, Gareth -- Meir, Patrick -- Mendoza, Casimiro -- Morel, Alexandra -- Neill, David A -- Nepstad, Daniel -- Patino, Sandra -- Penuela, Maria Cristina -- Prieto, Adriana -- Ramirez, Fredy -- Schwarz, Michael -- Silva, Javier -- Silveira, Marcos -- Thomas, Anne Sota -- Steege, Hans Ter -- Stropp, Juliana -- Vasquez, Rodolfo -- Zelazowski, Przemyslaw -- Alvarez Davila, Esteban -- Andelman, Sandy -- Andrade, Ana -- Chao, Kuo-Jung -- Erwin, Terry -- Di Fiore, Anthony -- Honorio C, Euridice -- Keeling, Helen -- Killeen, Tim J -- Laurance, William F -- Pena Cruz, Antonio -- Pitman, Nigel C A -- Nunez Vargas, Percy -- Ramirez-Angulo, Hirma -- Rudas, Agustin -- Salamao, Rafael -- Silva, Natalino -- Terborgh, John -- Torres-Lezama, Armando -- New York, N.Y. -- Science. 2009 Mar 6;323(5919):1344-7. doi: 10.1126/science.1164033.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ecology and Global Change, School of Geography, University of Leeds, Leeds LS2 9JT, UK. o.phillips@leeds.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19265020" target="_blank"〉PubMed〈/a〉
    Keywords: Atmosphere ; *Biomass ; Brazil ; Carbon ; Carbon Dioxide ; Climate ; *Droughts ; *Ecosystem ; South America ; *Trees/growth & development ; Tropical Climate
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Community proteomics of a natural microbial biofilm (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-05-10
    Description: Using genomic and mass spectrometry-based proteomic methods, we evaluated gene expression, identified key activities, and examined partitioning of metabolic functions in a natural acid mine drainage (AMD) microbial biofilm community. We detected 2033 proteins from the five most abundant species in the biofilm, including 48% of the predicted proteins from the dominant biofilm organism, Leptospirillum group II. Proteins involved in protein refolding and response to oxidative stress appeared to be highly expressed, which suggests that damage to biomolecules is a key challenge for survival. We validated and estimated the relative abundance and cellular localization of 357 unique and 215 conserved novel proteins and determined that one abundant novel protein is a cytochrome central to iron oxidation and AMD formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ram, Rachna J -- Verberkmoes, Nathan C -- Thelen, Michael P -- Tyson, Gene W -- Baker, Brett J -- Blake, Robert C 2nd -- Shah, Manesh -- Hettich, Robert L -- Banfield, Jillian F -- New York, N.Y. -- Science. 2005 Jun 24;308(5730):1915-20. Epub 2005 May 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Environmental Science, Policy, and Management, University of California at Berkeley, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15879173" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/metabolism ; Archaeal Proteins/*analysis/chemistry ; Bacteria/chemistry/genetics/*metabolism ; Bacterial Proteins/*analysis/chemistry/genetics/physiology ; *Biofilms/growth & development ; Cytochromes/analysis/chemistry ; *Ecosystem ; Gene Expression ; Genes, Archaeal ; Genes, Bacterial ; Genome, Archaeal ; Genome, Bacterial ; Genomics ; Hydrogen-Ion Concentration ; Iron/metabolism ; Isoelectric Point ; Mass Spectrometry ; *Mining ; Molecular Sequence Data ; Oxidation-Reduction ; Protein Biosynthesis ; Protein Folding ; Proteome ; *Proteomics ; Thermoplasmales/chemistry/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Lineages of acidophilic archaea revealed by community genomic analysis (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-12-23
    Description: Novel, low-abundance microbial species can be easily overlooked in standard polymerase chain reaction (PCR)-based surveys. We used community genomic data obtained without PCR or cultivation to reconstruct DNA fragments bearing unusual 16S ribosomal RNA (rRNA) and protein-coding genes from organisms belonging to novel archaeal lineages. The organisms are minor components of all biofilms growing in pH 0.5 to 1.5 solutions within the Richmond Mine, California. Probes specific for 16S rRNA showed that the fraction less than 0.45 micrometers in diameter is dominated by these organisms. Transmission electron microscope images revealed that the cells are pleomorphic with unusual folded membrane protrusions and have apparent volumes of 〈0.006 cubic micrometer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, Brett J -- Tyson, Gene W -- Webb, Richard I -- Flanagan, Judith -- Hugenholtz, Philip -- Allen, Eric E -- Banfield, Jillian F -- New York, N.Y. -- Science. 2006 Dec 22;314(5807):1933-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Planetary Sciences, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17185602" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *Biofilms ; California ; Cell Membrane/ultrastructure ; DNA Transposable Elements ; DNA, Archaeal ; Databases, Genetic ; *Ecosystem ; *Euryarchaeota/genetics/physiology/ultrastructure ; Genes, Archaeal ; Genes, rRNA ; *Genome, Archaeal ; Hydrogen-Ion Concentration ; Microscopy, Electron, Transmission ; Mining ; Molecular Sequence Data ; Oligonucleotide Probes ; Phylogeny ; Pyrophosphatases/genetics/metabolism ; RNA, Ribosomal, 16S/genetics ; Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
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