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  • Bacteria
  • Microplastics
  • American Association for the Advancement of Science (AAAS)  (29)
  • American Chemical Society
  • American Chemical Society (ACS)
  • 1
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    Production of two highly abundant 2-methyl-branched fatty acids by blooms of the globally significant marine cyanobacteria Trichodesmium erythraeum (2021)
    American Chemical Society
    Details
    Publication Date: 2022-05-27
    Description: © The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Gosselin, K. M., Nelson, R. K., Spivak, A. C., Sylva, S. P., Van Mooy, B. A. S., Aeppli, C., Sharpless, C. M., O’Neil, G. W., Arrington, E. C., Reddy, C. M., & Valentine, D. L. Production of two highly abundant 2-methyl-branched fatty acids by blooms of the globally significant marine cyanobacteria Trichodesmium erythraeum. ACS Omega, 6(35), (2021): 22803–22810, https://doi.org/10.1021/acsomega.1c03196.
    Description: The bloom-forming cyanobacteria Trichodesmium contribute up to 30% to the total fixed nitrogen in the global oceans and thereby drive substantial productivity. On an expedition in the Gulf of Mexico, we observed and sampled surface slicks, some of which included dense blooms of Trichodesmium erythraeum. These bloom samples contained abundant and atypical free fatty acids, identified here as 2-methyldecanoic acid and 2-methyldodecanoic acid. The high abundance and unusual branching pattern of these compounds suggest that they may play a specific role in this globally important organism.
    Description: This work was funded with grants from the National Science Foundation grants OCE-1333148, OCE-1333162, and OCE-1756254 and the Woods Hole Oceanographic Institution (IR&D). GCxGC analysis made possible by WHOI’s Investment in Science Fund.
    Keywords: Lipids ; Alkyls ; Bacteria ; Genetics ; Chromatography
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 2
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    Flow-through quantification of microplastics using impedance spectroscopy (2021)
    American Chemical Society
    Details
    Publication Date: 2022-10-21
    Description: © The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Colson, B. C., & Michel, A. P. M. Flow-through quantification of microplastics using impedance spectroscopy. ACS Sensors, 6(1), (2021): 238–244, doi:10.1021/acssensors.0c02223.
    Description: Understanding the sources, impacts, and fate of microplastics in the environment is critical for assessing the potential risks of these anthropogenic particles. However, our ability to quantify and identify microplastics in aquatic ecosystems is limited by the lack of rapid techniques that do not require visual sorting or preprocessing. Here, we demonstrate the use of impedance spectroscopy for high-throughput flow-through microplastic quantification, with the goal of rapid measurement of microplastic concentration and size. Impedance spectroscopy characterizes the electrical properties of individual particles directly in the flow of water, allowing for simultaneous sizing and material identification. To demonstrate the technique, spike and recovery experiments were conducted in tap water with 212–1000 μm polyethylene beads in six size ranges and a variety of similarly sized biological materials. Microplastics were reliably detected, sized, and differentiated from biological materials via their electrical properties at an average flow rate of 103 ± 8 mL/min. The recovery rate was ≥90% for microplastics in the 300–1000 μm size range, and the false positive rate for the misidentification of the biological material as plastic was 1%. Impedance spectroscopy allowed for the identification of microplastics directly in water without visual sorting or filtration, demonstrating its use for flow-through sensing.
    Description: The authors thank the Richard Saltonstall Charitable Foundation and the National Academies Keck Futures Initiative (NAKFI DBS13) for their funding support.
    Keywords: Microplastics ; Plastics ; Impedance spectroscopy ; Dielectric properties ; Instrumentation ; Particle detection ; Flow-through ; Environmental sensing
    Repository Name: Woods Hole Open Access Server
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  • 3
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    Historical overfishing and the recent collapse of coastal ecosystems (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-07-28
    Description: Ecological extinction caused by overfishing precedes all other pervasive human disturbance to coastal ecosystems, including pollution, degradation of water quality, and anthropogenic climate change. Historical abundances of large consumer species were fantastically large in comparison with recent observations. Paleoecological, archaeological, and historical data show that time lags of decades to centuries occurred between the onset of overfishing and consequent changes in ecological communities, because unfished species of similar trophic level assumed the ecological roles of overfished species until they too were overfished or died of epidemic diseases related to overcrowding. Retrospective data not only help to clarify underlying causes and rates of ecological change, but they also demonstrate achievable goals for restoration and management of coastal ecosystems that could not even be contemplated based on the limited perspective of recent observations alone.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jackson, J B -- Kirby, M X -- Berger, W H -- Bjorndal, K A -- Botsford, L W -- Bourque, B J -- Bradbury, R H -- Cooke, R -- Erlandson, J -- Estes, J A -- Hughes, T P -- Kidwell, S -- Lange, C B -- Lenihan, H S -- Pandolfi, J M -- Peterson, C H -- Steneck, R S -- Tegner, M J -- Warner, R R -- New York, N.Y. -- Science. 2001 Jul 27;293(5530):629-37.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0244, USA. jbcj@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11474098" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Archaeology ; Bacteria ; Cnidaria ; Conservation of Natural Resources ; *Ecosystem ; Eutrophication ; *Fishes ; Geologic Sediments ; Humans ; *Marine Biology ; Seaweed ; Shellfish ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Culture collections seek global help (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Normile, D -- New York, N.Y. -- Science. 1999 Feb 26;283(5406):1240-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10084924" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; *Biological Specimen Banks/organization & administration ; Cell Line ; Computational Biology ; Databases, Factual ; Fungi ; *International Cooperation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Lunar and Planetary Science Conference. Oddities both lunar and Martian (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-04-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, R A -- New York, N.Y. -- Science. 2000 Mar 31;287(5462):2402-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10766615" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; Carbonates/chemistry ; *Exobiology ; Extraterrestrial Environment ; Ferrosoferric Oxide ; Iron/chemistry ; *Mars ; Meteoroids ; *Moon ; Oxides/chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Bioterrorism. Congress weighs select agent update (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, M -- Malakoff, D -- New York, N.Y. -- Science. 2001 Nov 16;294(5546):1438.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11711649" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; Bioterrorism/*legislation & jurisprudence/prevention & control ; Coccidioides ; *Containment of Biohazards/economics ; Costs and Cost Analysis ; Emigration and Immigration/legislation & jurisprudence ; Government ; Research Personnel/*legislation & jurisprudence ; Security Measures/economics/*legislation & jurisprudence ; Toxins, Biological ; United States ; Viruses
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    The antiquity of oxygenic photosynthesis: evidence from stromatolites in sulphate-deficient Archaean lakes (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-01-03
    Description: The Tumbiana Formation, about 2700 million years old, was largely deposited in ephemeral saline lakes, as judged by the unusual evaporite paragenesis of carbonate and halite with no sulfate. Stromatolites of diverse morphology occur in the lacustrine sediments, some with palimpsest fabrics after erect filaments. These stromatolites were probably accreted by phototropic microbes that, from their habitat in shallow isolated basins with negligible sulfate concentrations, almost certainly metabolized by ozygenic photosynthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buick, R -- New York, N.Y. -- Science. 1992 Jan 3;255(5040):74-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Botanical Museum, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11536492" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea ; Australia ; Bacteria ; *Biological Evolution ; Carbonates/analysis/chemistry/metabolism ; Earth (Planet) ; *Environmental Microbiology ; *Evolution, Planetary ; *Fossils ; Fresh Water ; Geologic Sediments/*analysis/microbiology ; Oxidation-Reduction ; Paleontology ; Photosynthesis/*physiology ; Sodium Chloride/analysis ; Sulfates/analysis
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Astrobiology. Robot seeks new life--and new funding--in the abyss of Zacaton (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-01-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Krajick, Kevin -- New York, N.Y. -- Science. 2007 Jan 19;315(5810):322-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17234927" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea ; Bacteria ; Budgets ; *Ecosystem ; *Exobiology ; Hot Springs/*microbiology ; Jupiter ; Mexico ; Robotics/economics/*instrumentation ; Software ; United States ; United States National Aeronautics and Space Administration/economics ; *Water Microbiology
    Print ISSN: 0036-8075
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  • 9
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    Reefs in trouble. Whiter shades of pale (2007)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2007-12-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, Cheryl -- New York, N.Y. -- Science. 2007 Dec 14;318(5857):1716.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18079379" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anthozoa/microbiology/physiology ; Aspergillus ; Bacteria ; *Ecosystem ; Greenhouse Effect
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  • 10
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    Materials science. Printing cells (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-10-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Calvert, Paul -- New York, N.Y. -- Science. 2007 Oct 12;318(5848):208-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Materials and Textiles, University of Massachusetts Dartmouth, North Dartmouth, MA 02747 USA. pcalvert@umassd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17932278" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria ; *Cell Communication ; Cell Survival ; Cells, Cultured ; Computer Peripherals ; *Cytological Techniques/instrumentation ; Humans ; *Microbiological Techniques/instrumentation ; Printing/*instrumentation ; *Tissue Engineering ; Yeasts
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 11
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    Trophic structure and community stability in an overfished ecosystem (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-22
    Description: Since the collapse of the pelagic fisheries off southwest Africa in the late 1960s, jellyfish biomass has increased and the structure of the Benguelan fish community has shifted, making the bearded goby (Sufflogobius bibarbatus) the new predominant prey species. Despite increased predation pressure and a harsh environment, the gobies are thriving. Here we show that physiological adaptations and antipredator and foraging behaviors underpin the success of these fish. In particular, body-tissue isotope signatures reveal that gobies consume jellyfish and sulphidic diatomaceous mud, transferring "dead-end" resources back into the food chain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Utne-Palm, Anne C -- Salvanes, Anne G V -- Currie, Bronwen -- Kaartvedt, Stein -- Nilsson, Goran E -- Braithwaite, Victoria A -- Stecyk, Jonathan A W -- Hundt, Matthias -- van der Bank, Megan -- Flynn, Bradley -- Sandvik, Guro K -- Klevjer, Thor A -- Sweetman, Andrew K -- Bruchert, Volker -- Pittman, Karin -- Peard, Kathleen R -- Lunde, Ida G -- Strandabo, Ronnaug A U -- Gibbons, Mark J -- New York, N.Y. -- Science. 2010 Jul 16;329(5989):333-6. doi: 10.1126/science.1190708.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Bergen, Bergen, Norway. anne.palm@bio.uib.no〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20647468" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Anaerobiosis ; Animals ; Bacteria ; Behavior, Animal ; Biomass ; Cardiovascular Physiological Phenomena ; Digestion ; *Ecosystem ; Feeding Behavior ; Fisheries ; Fishes/physiology ; *Food Chain ; Geologic Sediments/microbiology ; Hydrogen Sulfide/analysis ; Namibia ; Oxygen/analysis ; Oxygen Consumption ; Perciformes/*physiology ; Population Dynamics ; Predatory Behavior ; *Scyphozoa ; Seawater/chemistry
    Print ISSN: 0036-8075
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  • 12
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    Dust and biological aerosols from the Sahara and Asia influence precipitation in the western U.S (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-03-02
    Description: Winter storms in California's Sierra Nevada increase seasonal snowpack and provide critical water resources and hydropower for the state. Thus, the mechanisms influencing precipitation in this region have been the subject of research for decades. Previous studies suggest Asian dust enhances cloud ice and precipitation, whereas few studies consider biological aerosols as an important global source of ice nuclei (IN). Here, we show that dust and biological aerosols transported from as far as the Sahara were present in glaciated high-altitude clouds coincident with elevated IN concentrations and ice-induced precipitation. This study presents the first direct cloud and precipitation measurements showing that Saharan and Asian dust and biological aerosols probably serve as IN and play an important role in orographic precipitation processes over the western United States.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Creamean, Jessie M -- Suski, Kaitlyn J -- Rosenfeld, Daniel -- Cazorla, Alberto -- DeMott, Paul J -- Sullivan, Ryan C -- White, Allen B -- Ralph, F Martin -- Minnis, Patrick -- Comstock, Jennifer M -- Tomlinson, Jason M -- Prather, Kimberly A -- New York, N.Y. -- Science. 2013 Mar 29;339(6127):1572-8. doi: 10.1126/science.1227279. Epub 2013 Feb 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California, San Diego (UCSD), La Jolla, CA 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23449996" target="_blank"〉PubMed〈/a〉
    Keywords: Aerosols/*chemistry ; Africa, Northern ; *Altitude ; Asia ; Atmosphere/*chemistry ; Bacteria ; *Dust ; *Freezing ; *Ice ; Models, Chemical ; Rain/chemistry ; Seasons ; Snow/chemistry ; United States
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  • 13
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    Martian 'microbes' cover their tracks (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-04-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kerr, R A -- New York, N.Y. -- Science. 1997 Apr 4;276(5309):30-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9122703" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; *Carbonates/analysis/chemistry ; *Exobiology ; Extraterrestrial Environment ; Ferrosoferric Oxide ; Fossils ; *Iron/analysis/chemistry ; *Mars ; *Meteoroids ; *Oxides/analysis/chemistry ; Temperature
    Print ISSN: 0036-8075
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  • 14
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    Nanomaterials. 'Smart coatings' research shows the virtues of superficiality (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-07-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bohannon, John -- New York, N.Y. -- Science. 2005 Jul 15;309(5733):376-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16020712" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; Corrosion ; Decontamination ; Flame Retardants ; *Nanostructures ; *Nanotechnology
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  • 15
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    Antarctic drilling. The plan to unlock Lake Vostok (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-10-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inman, Mason -- New York, N.Y. -- Science. 2005 Oct 28;310(5748):611-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16254162" target="_blank"〉PubMed〈/a〉
    Keywords: Antarctic Regions ; Bacteria ; Cold Climate ; *Ecosystem ; *Fresh Water ; *Ice Cover ; Russia ; Water Microbiology ; Water Pollutants, Chemical
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  • 16
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    Detection of methane in the atmosphere of Mars (2004)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2004-10-30
    Description: We report a detection of methane in the martian atmosphere by the Planetary Fourier Spectrometer onboard the Mars Express spacecraft. The global average methane mixing ratio is found to be 10 +/- 5 parts per billion by volume (ppbv). However, the mixing ratio varies between 0 and 30 ppbv over the planet. The source of methane could be either biogenic or nonbiogenic, including past or present subsurface microorganisms, hydrothermal activity, or cometary impacts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Formisano, Vittorio -- Atreya, Sushil -- Encrenaz, Therese -- Ignatiev, Nikolai -- Giuranna, Marco -- New York, N.Y. -- Science. 2004 Dec 3;306(5702):1758-61. Epub 2004 Oct 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Istituto di Fisica dello Spazio Interplanetario INAF-IFSI, Via del Fosso del Cavaliere 100, 00133 Rome, Italy. formisan@nike.ifsi.rm.cnr.it〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15514118" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea ; Atmosphere ; Bacteria ; Exobiology ; Extraterrestrial Environment ; Hydrogen ; *Mars ; Meteoroids ; *Methane ; Pressure ; Spacecraft ; Spectroscopy, Fourier Transform Infrared ; Volcanic Eruptions ; Water
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  • 17
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    Abundance of cellular material and proteins in the atmosphere (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-04-02
    Description: Suspended atmospheric particles play a crucial role in any global climate scenario: They can both enforce and suppress radiative forcing. In developing climate modeling further, a deeper understanding of atmospheric aerosol is needed. Because of extreme local and temporal variations, proper incorporation of aerosols into models requires modeling of the aerosol itself. It turns out that cellular material and proteins compose up to 25% of the atmospheric aerosol. Consequently, the source strength of the biogenic aerosol in general must be corrected and should be estimated on the order of other major aerosol sources.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jaenicke, Ruprecht -- New York, N.Y. -- Science. 2005 Apr 1;308(5718):73.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Physik der Atmosphare, Universitat Mainz, 55099 Mainz, Germany. jaenicke@uni-mainz.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15802596" target="_blank"〉PubMed〈/a〉
    Keywords: Aerosols ; *Air Microbiology ; Animals ; *Atmosphere ; Bacteria ; *Cells ; Environment ; Eukaryota ; Fungi ; Humans ; Particle Size ; Pollen ; Proteins/*analysis ; Seasons ; Spores ; Viruses
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  • 18
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    Microfossils of the Early Archean Apex chert: new evidence of the antiquity of life (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-04-30
    Description: Eleven taxa (including eight heretofore undescribed species) of cellularly preserved filamentous microbes, among the oldest fossils known, have been discovered in a bedded chert unit of the Early Archean Apex Basalt of northwestern Western Australia. This prokaryotic assemblage establishes that trichomic cyanobacterium-like microorganisms were extant and morphologically diverse at least as early as approximately 3465 million years ago and suggests that oxygen-producing photoautotrophy may have already evolved by this early stage in biotic history.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schopf, J W -- New York, N.Y. -- Science. 1993 Apr 30;260:640-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Space Sciences, University of California, Los Angeles 90024, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11539831" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; *Biological Evolution ; Cyanobacteria ; Environmental Microbiology ; *Fossils ; Geologic Sediments/*analysis/*microbiology ; *Paleontology ; Prokaryotic Cells/*classification ; Western Australia
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Another form of bias in conservation research (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-10-29
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Klironomos, John N -- New York, N.Y. -- Science. 2002 Oct 25;298(5594):749-50; author reply 749-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12400547" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria ; Bias (Epidemiology) ; *Conservation of Natural Resources ; *Ecosystem ; Fungi ; Lichens ; Plants ; *Research ; Viruses
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Looking for clues to the mystery of life on earth (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-08-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 1996 Aug 16;273(5277):870-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8711475" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; Evolution, Molecular ; Meteoroids ; Organophosphonates ; *Origin of Life ; RNA/genetics/metabolism ; RNA, Catalytic/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 21
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    Search for past life on Mars: possible relic biogenic activity in martian meteorite ALH84001 (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-08-16
    Description: Fresh fracture surfaces of the martian meteorite ALH84001 contain abundant polycyclic aromatic hydrocarbons (PAHs). These fresh fracture surfaces also display carbonate globules. Contamination studies suggest that the PAHs are indigenous to the meteorite. High-resolution scanning and transmission electron microscopy study of surface textures and internal structures of selected carbonate globules show that the globules contain fine-grained, secondary phases of single-domain magnetite and Fe-sulfides. The carbonate globules are similar in texture and size to some terrestrial bacterially induced carbonate precipitates. Although inorganic formation is possible, formation of the globules by biogenic processes could explain many of the observed features, including the PAHs. The PAHs, the carbonate globules, and their associated secondary mineral phases and textures could thus be fossil remains of a past martian biota.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McKay, D S -- Gibson, E K Jr -- Thomas-Keprta, K L -- Vali, H -- Romanek, C S -- Clemett, S J -- Chillier, X D -- Maechling, C R -- Zare, R N -- New York, N.Y. -- Science. 1996 Aug 16;273(5277):924-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉NASA Lyndon B. Johnson Space Center (JSC), Houston, TX 77058, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8688069" target="_blank"〉PubMed〈/a〉
    Keywords: Antarctic Regions ; Bacteria ; Carbonates/*analysis ; *Exobiology ; Extraterrestrial Environment ; Ferrosoferric Oxide ; Ferrous Compounds/analysis ; Fossils ; Hydrogen-Ion Concentration ; Iron/analysis ; *Mars ; *Meteoroids ; Microscopy, Electron ; Microscopy, Electron, Scanning ; Oxides/analysis ; Polycyclic Hydrocarbons, Aromatic/*analysis
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 22
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    Past life on Mars? (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-09-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morowitz, H J -- New York, N.Y. -- Science. 1996 Sep 20;273(5282):1639-40; author reply 1640.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8830403" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; *Exobiology ; Ferrosoferric Oxide ; Fossils ; Iron/analysis ; *Mars ; *Meteoroids ; Oxides/analysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 23
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    Did DNA come from viruses? (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-05-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmer, Carl -- New York, N.Y. -- Science. 2006 May 12;312(5775):870-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16690855" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea ; Bacteria ; *Biological Evolution ; *DNA/genetics ; DNA Replication/genetics ; DNA, Viral/genetics/physiology ; Eukaryotic Cells ; *Evolution, Molecular ; *RNA/genetics ; RNA Viruses/genetics/physiology ; RNA, Viral/genetics/physiology ; Selection, Genetic ; Virus Physiological Phenomena ; *Viruses/genetics
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 24
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    Ecology. How a little fish keeps overfished ecosystem productive (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2010 Jul 16;329(5989):268. doi: 10.1126/science.329.5989.268.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20647437" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria ; *Ecosystem ; Fisheries ; *Food Chain ; Geologic Sediments/microbiology ; Hydrogen Sulfide/analysis ; Oxygen/analysis ; Perciformes/*physiology ; Population Dynamics ; Scyphozoa ; Seawater/chemistry
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 25
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    Ancient aqueous environments at Endeavour crater, Mars (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-01-25
    Description: Opportunity has investigated in detail rocks on the rim of the Noachian age Endeavour crater, where orbital spectral reflectance signatures indicate the presence of Fe(+3)-rich smectites. The signatures are associated with fine-grained, layered rocks containing spherules of diagenetic or impact origin. The layered rocks are overlain by breccias, and both units are cut by calcium sulfate veins precipitated from fluids that circulated after the Endeavour impact. Compositional data for fractures in the layered rocks suggest formation of Al-rich smectites by aqueous leaching. Evidence is thus preserved for water-rock interactions before and after the impact, with aqueous environments of slightly acidic to circum-neutral pH that would have been more favorable for prebiotic chemistry and microorganisms than those recorded by younger sulfate-rich rocks at Meridiani Planum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arvidson, R E -- Squyres, S W -- Bell, J F 3rd -- Catalano, J G -- Clark, B C -- Crumpler, L S -- de Souza, P A Jr -- Fairen, A G -- Farrand, W H -- Fox, V K -- Gellert, R -- Ghosh, A -- Golombek, M P -- Grotzinger, J P -- Guinness, E A -- Herkenhoff, K E -- Jolliff, B L -- Knoll, A H -- Li, R -- McLennan, S M -- Ming, D W -- Mittlefehldt, D W -- Moore, J M -- Morris, R V -- Murchie, S L -- Parker, T J -- Paulsen, G -- Rice, J W -- Ruff, S W -- Smith, M D -- Wolff, M J -- New York, N.Y. -- Science. 2014 Jan 24;343(6169):1248097. doi: 10.1126/science.1248097.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Earth and Planetary Sciences, Washington University in Saint Louis, St. Louis, MO 63130, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24458648" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; *Exobiology ; Extraterrestrial Environment/*chemistry ; Geologic Sediments ; Hydrogen-Ion Concentration ; *Mars ; Silicates/analysis/chemistry ; Spacecraft ; Sulfates/chemistry ; *Water
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Water's tough skin (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-03-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2014 Mar 14;343(6176):1194-7. doi: 10.1126/science.343.6176.1194.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24626911" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria ; Beetles ; Cough/microbiology ; Humans ; Plant Leaves ; Rats ; Skin ; Sneezing ; Surface Tension ; Viruses ; Water/*chemistry ; *Wettability
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Evolutionary biology. Evolving new organisms via symbiosis (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-04-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kiers, E Toby -- West, Stuart A -- New York, N.Y. -- Science. 2015 Apr 24;348(6233):392-4. doi: 10.1126/science.aaa9605.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Ecological Sciences, Vrije Universiteit, 1081 HV Amsterdam, Netherlands. toby.kiers@vu.nl. ; Department of Zoology, University of Oxford, Oxford OX1 3PS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908807" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria ; *Biological Evolution ; Energy Metabolism ; Insects/microbiology ; Platyhelminths ; Symbiosis/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Supreme court to say if life is patentable (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-11-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wade, N -- New York, N.Y. -- Science. 1979 Nov 9;206(4419):664.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/493970" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; *DNA, Recombinant ; *Jurisprudence ; Licensure ; *Patents as Topic
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 29
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    Court says lab-made life can be patented (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-06-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wade, N -- New York, N.Y. -- Science. 1980 Jun 27;208(4451):1445.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6930105" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; *Cloning, Molecular ; *Genetic Engineering ; Patents as Topic/*legislation & jurisprudence ; Supreme Court Decisions ; United States
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    Gram-positive bacteria: possible photosynthetic ancestry (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-01-01
    Description: A 16S ribosomal RNA gene has been sequenced from Heliobacterium chlorum, the recently discovered photosynthetic bacterium that contains a novel form of chlorophyll. Comparisons with other 16S ribosomal RNA sequences show that the organism belongs to the Gram-positive bacteria (one of ten eubacterial "phyla")--more precisely to the so-called low G + C (G, guanine; C, cytosine) subdivision thereof. This brings to five the number of such phyla that contain photosynthetic species, the other four being the purple bacteria and relatives, the green sulfur bacteria, the green nonsulfur bacteria, and the cyanobacteria. The finding suggests that Gram-positive bacteria may be of photosynthetic ancestry, and it strengthens the case for a common photosynthetic ancestry for all eubacteria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Woese, C R -- Debrunner-Vossbrinck, B A -- Oyaizu, H -- Stackebrandt, E -- Ludwig, W -- New York, N.Y. -- Science. 1985;229:762-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Development, University of Illinois, Urbana 61801, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11539659" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria ; Base Sequence ; *Biological Evolution ; Chlorobi ; Chlorophyll/analysis ; Cyanobacteria ; Cytosine/analysis ; DNA, Bacterial/analysis/chemistry/genetics ; Gram-Positive Bacteria/*classification/genetics/physiology ; Guanine/analysis ; Molecular Sequence Data ; Oligonucleotides/analysis/chemistry/genetics ; Photosynthesis/*genetics/physiology ; RNA, Bacterial/analysis/chemistry/genetics ; RNA, Ribosomal, 16S/analysis/chemistry/*genetics ; *Sequence Homology, Nucleic Acid
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Male-killing bacteria in a parasitic wasp (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-02-28
    Description: A rod-shaped bacterium has been isolated that kills male eggs of the wasp Nasonia vitripennis, a pupal parasite of flies. Only some wasps of this species express this son-killer trait, and these wasps have bacterial infections in various organs. The bacterium was isolated from son-killer wasp tissue and from the hemolymph of fly pupae parasitized by wasps expressing the son-killer trait. Bacteria are apparently transferred to parasitized fly pupae during wasp oviposition, and developing wasp offspring are subsequently infected perorally. Sex-ratio distortion by microorganisms is found in a variety of plants and animals. The infectious peroral transmission of this trait variety of plants and animals. The infectious peroral transmission of this trait is in contrast to the typical pattern of cytoplasmic inheritance of sex-ratio distortion in these other systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Werren, J H -- Skinner, S W -- Huger, A M -- 5 T32 6MO7131/PHS HHS/ -- New York, N.Y. -- Science. 1986 Feb 28;231(4741):990-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3945814" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacteria ; Female ; Hemolymph/microbiology ; Hymenoptera/*microbiology ; Male ; Ovum/microbiology ; Sex Factors ; Wasps/*microbiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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