ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
Filter
  • *Ecosystem  (67)
  • Signal Transduction  (60)
  • 2005-2009  (127)
  • 1980-1984
  • 1965-1969
  • 2008  (75)
  • 2007  (52)
  • 1
    facet.materialart.
    Unknown
    Legumes symbioses: absence of Nod genes in photosynthetic bradyrhizobia (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-06-02
    Description: Leguminous plants (such as peas and soybeans) and rhizobial soil bacteria are symbiotic partners that communicate through molecular signaling pathways, resulting in the formation of nodules on legume roots and occasionally stems that house nitrogen-fixing bacteria. Nodule formation has been assumed to be exclusively initiated by the binding of bacterial, host-specific lipochito-oligosaccharidic Nod factors, encoded by the nodABC genes, to kinase-like receptors of the plant. Here we show by complete genome sequencing of two symbiotic, photosynthetic, Bradyrhizobium strains, BTAi1 and ORS278, that canonical nodABC genes and typical lipochito-oligosaccharidic Nod factors are not required for symbiosis in some legumes. Mutational analyses indicated that these unique rhizobia use an alternative pathway to initiate symbioses, where a purine derivative may play a key role in triggering nodule formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Giraud, Eric -- Moulin, Lionel -- Vallenet, David -- Barbe, Valerie -- Cytryn, Eddie -- Avarre, Jean-Christophe -- Jaubert, Marianne -- Simon, Damien -- Cartieaux, Fabienne -- Prin, Yves -- Bena, Gilles -- Hannibal, Laure -- Fardoux, Joel -- Kojadinovic, Mila -- Vuillet, Laurie -- Lajus, Aurelie -- Cruveiller, Stephane -- Rouy, Zoe -- Mangenot, Sophie -- Segurens, Beatrice -- Dossat, Carole -- Franck, William L -- Chang, Woo-Suk -- Saunders, Elizabeth -- Bruce, David -- Richardson, Paul -- Normand, Philippe -- Dreyfus, Bernard -- Pignol, David -- Stacey, Gary -- Emerich, David -- Vermeglio, Andre -- Medigue, Claudine -- Sadowsky, Michael -- New York, N.Y. -- Science. 2007 Jun 1;316(5829):1307-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Recherche pour le Developpement, Centre de Cooperation International en Recherche Agronomique pour le Developpement, Institut National de la Recherche Agronomique, Universite Montpellier 2, France. giraud@mpl.ird.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17540897" target="_blank"〉PubMed〈/a〉
    Keywords: Acyltransferases/genetics/metabolism ; Amidohydrolases/genetics/metabolism ; Bacterial Proteins/genetics/metabolism ; Bradyrhizobium/*genetics/growth & development/*physiology ; Cytokinins/metabolism ; Fabaceae/*microbiology ; Genes, Bacterial ; Genome, Bacterial ; Genomics ; Lipopolysaccharides/metabolism ; Molecular Sequence Data ; Mutation ; N-Acetylglucosaminyltransferases/genetics/metabolism ; Photosynthesis ; Plant Roots/microbiology ; Plant Stems/*microbiology ; Purines/biosynthesis ; Root Nodules, Plant/microbiology/*physiology ; Signal Transduction ; *Symbiosis
    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
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    An integrated genomic analysis of human glioblastoma multiforme (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-09-06
    Description: Glioblastoma multiforme (GBM) is the most common and lethal type of brain cancer. To identify the genetic alterations in GBMs, we sequenced 20,661 protein coding genes, determined the presence of amplifications and deletions using high-density oligonucleotide arrays, and performed gene expression analyses using next-generation sequencing technologies in 22 human tumor samples. This comprehensive analysis led to the discovery of a variety of genes that were not known to be altered in GBMs. Most notably, we found recurrent mutations in the active site of isocitrate dehydrogenase 1 (IDH1) in 12% of GBM patients. Mutations in IDH1 occurred in a large fraction of young patients and in most patients with secondary GBMs and were associated with an increase in overall survival. These studies demonstrate the value of unbiased genomic analyses in the characterization of human brain cancer and identify a potentially useful genetic alteration for the classification and targeted therapy of GBMs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820389/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820389/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parsons, D Williams -- Jones, Sian -- Zhang, Xiaosong -- Lin, Jimmy Cheng-Ho -- Leary, Rebecca J -- Angenendt, Philipp -- Mankoo, Parminder -- Carter, Hannah -- Siu, I-Mei -- Gallia, Gary L -- Olivi, Alessandro -- McLendon, Roger -- Rasheed, B Ahmed -- Keir, Stephen -- Nikolskaya, Tatiana -- Nikolsky, Yuri -- Busam, Dana A -- Tekleab, Hanna -- Diaz, Luis A Jr -- Hartigan, James -- Smith, Doug R -- Strausberg, Robert L -- Marie, Suely Kazue Nagahashi -- Shinjo, Sueli Mieko Oba -- Yan, Hai -- Riggins, Gregory J -- Bigner, Darell D -- Karchin, Rachel -- Papadopoulos, Nick -- Parmigiani, Giovanni -- Vogelstein, Bert -- Velculescu, Victor E -- Kinzler, Kenneth W -- 5P50-NS-20023/NS/NINDS NIH HHS/ -- CA09547/CA/NCI NIH HHS/ -- CA108786/CA/NCI NIH HHS/ -- CA11898/CA/NCI NIH HHS/ -- CA121113/CA/NCI NIH HHS/ -- CA43460/CA/NCI NIH HHS/ -- CA57345/CA/NCI NIH HHS/ -- CA62924/CA/NCI NIH HHS/ -- NS052507/NS/NINDS NIH HHS/ -- P50 CA062924/CA/NCI NIH HHS/ -- P50 CA062924-160017/CA/NCI NIH HHS/ -- R01 CA121113/CA/NCI NIH HHS/ -- R01 CA121113-04/CA/NCI NIH HHS/ -- R01 CA140316/CA/NCI NIH HHS/ -- R37 CA043460/CA/NCI NIH HHS/ -- R37 CA043460-27/CA/NCI NIH HHS/ -- R37 CA057345/CA/NCI NIH HHS/ -- R37 CA057345-13/CA/NCI NIH HHS/ -- R37 CA057345-17/CA/NCI NIH HHS/ -- R37 CA057345-18/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Sep 26;321(5897):1807-12. doi: 10.1126/science.1164382. Epub 2008 Sep 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Center for Cancer Genetics and Therapeutics, and Howard Hughes Medical Institute at Johns Hopkins Kimmel Cancer Center, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772396" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Neoplasms/*genetics/mortality ; Female ; Gene Amplification ; Gene Dosage ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Genome, Human ; Glioblastoma/*genetics/mortality ; Humans ; Isocitrate Dehydrogenase/chemistry/*genetics ; Male ; Middle Aged ; *Mutation ; Mutation, Missense ; Oligonucleotide Array Sequence Analysis ; Polymorphism, Single Nucleotide ; Sequence Analysis, DNA ; Signal Transduction ; Survival Rate
    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
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    Scaling laws of marine predator search behaviour (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-02-29
    Description: Many free-ranging predators have to make foraging decisions with little, if any, knowledge of present resource distribution and availability. The optimal search strategy they should use to maximize encounter rates with prey in heterogeneous natural environments remains a largely unresolved issue in ecology. Levy walks are specialized random walks giving rise to fractal movement trajectories that may represent an optimal solution for searching complex landscapes. However, the adaptive significance of this putative strategy in response to natural prey distributions remains untested. Here we analyse over a million movement displacements recorded from animal-attached electronic tags to show that diverse marine predators-sharks, bony fishes, sea turtles and penguins-exhibit Levy-walk-like behaviour close to a theoretical optimum. Prey density distributions also display Levy-like fractal patterns, suggesting response movements by predators to prey distributions. Simulations show that predators have higher encounter rates when adopting Levy-type foraging in natural-like prey fields compared with purely random landscapes. This is consistent with the hypothesis that observed search patterns are adapted to observed statistical patterns of the landscape. This may explain why Levy-like behaviour seems to be widespread among diverse organisms, from microbes to humans, as a 'rule' that evolved in response to patchy resource distributions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sims, David W -- Southall, Emily J -- Humphries, Nicolas E -- Hays, Graeme C -- Bradshaw, Corey J A -- Pitchford, Jonathan W -- James, Alex -- Ahmed, Mohammed Z -- Brierley, Andrew S -- Hindell, Mark A -- Morritt, David -- Musyl, Michael K -- Righton, David -- Shepard, Emily L C -- Wearmouth, Victoria J -- Wilson, Rory P -- Witt, Matthew J -- Metcalfe, Julian D -- England -- Nature. 2008 Feb 28;451(7182):1098-102. doi: 10.1038/nature06518.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB, UK. dws@mba.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18305542" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Ecosystem ; Euphausiacea ; *Feeding Behavior ; Fractals ; Gadiformes ; *Marine Biology ; *Models, Biological ; *Motor Activity ; Oceans and Seas ; Population Density ; *Predatory Behavior ; Probability ; Seals, Earless ; Sharks ; Spheniscidae ; Tuna ; Turtles
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Prolonged suppression of ecosystem carbon dioxide uptake after an anomalously warm year (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-09-19
    Description: Terrestrial ecosystems control carbon dioxide fluxes to and from the atmosphere through photosynthesis and respiration, a balance between net primary productivity and heterotrophic respiration, that determines whether an ecosystem is sequestering carbon or releasing it to the atmosphere. Global and site-specific data sets have demonstrated that climate and climate variability influence biogeochemical processes that determine net ecosystem carbon dioxide exchange (NEE) at multiple timescales. Experimental data necessary to quantify impacts of a single climate variable, such as temperature anomalies, on NEE and carbon sequestration of ecosystems at interannual timescales have been lacking. This derives from an inability of field studies to avoid the confounding effects of natural intra-annual and interannual variability in temperature and precipitation. Here we present results from a four-year study using replicate 12,000-kg intact tallgrass prairie monoliths located in four 184-m(3) enclosed lysimeters. We exposed 6 of 12 monoliths to an anomalously warm year in the second year of the study and continuously quantified rates of ecosystem processes, including NEE. We find that warming decreases NEE in both the extreme year and the following year by inducing drought that suppresses net primary productivity in the extreme year and by stimulating heterotrophic respiration of soil biota in the subsequent year. Our data indicate that two years are required for NEE in the previously warmed experimental ecosystems to recover to levels measured in the control ecosystems. This time lag caused net ecosystem carbon sequestration in previously warmed ecosystems to be decreased threefold over the study period, compared with control ecosystems. Our findings suggest that more frequent anomalously warm years, a possible consequence of increasing anthropogenic carbon dioxide levels, may lead to a sustained decrease in carbon dioxide uptake by terrestrial ecosystems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arnone, John A 3rd -- Verburg, Paul S J -- Johnson, Dale W -- Larsen, Jessica D -- Jasoni, Richard L -- Lucchesi, Annmarie J -- Batts, Candace M -- von Nagy, Christopher -- Coulombe, William G -- Schorran, David E -- Buck, Paul E -- Braswell, Bobby H -- Coleman, James S -- Sherry, Rebecca A -- Wallace, Linda L -- Luo, Yiqi -- Schimel, David S -- England -- Nature. 2008 Sep 18;455(7211):383-6. doi: 10.1038/nature07296.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Desert Research Institute, Reno, Nevada 89512, USA. jarnone@dri.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18800137" target="_blank"〉PubMed〈/a〉
    Keywords: Carbon Dioxide/*metabolism ; *Climate ; Disasters ; *Ecosystem ; *Hot Temperature ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 5
    facet.materialart.
    Unknown
    Coastal ecosystem-based management with nonlinear ecological functions and values (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-01-19
    Description: A common assumption is that ecosystem services respond linearly to changes in habitat size. This assumption leads frequently to an "all or none" choice of either preserving coastal habitats or converting them to human use. However, our survey of wave attenuation data from field studies of mangroves, salt marshes, seagrass beds, nearshore coral reefs, and sand dunes reveals that these relationships are rarely linear. By incorporating nonlinear wave attenuation in estimating coastal protection values of mangroves in Thailand, we show that the optimal land use option may instead be the integration of development and conservation consistent with ecosystem-based management goals. This result suggests that reconciling competing demands on coastal habitats should not always result in stark preservation-versus-conversion choices.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barbier, Edward B -- Koch, Evamaria W -- Silliman, Brian R -- Hacker, Sally D -- Wolanski, Eric -- Primavera, Jurgenne -- Granek, Elise F -- Polasky, Stephen -- Aswani, Shankar -- Cramer, Lori A -- Stoms, David M -- Kennedy, Chris J -- Bael, David -- Kappel, Carrie V -- Perillo, Gerardo M E -- Reed, Denise J -- New York, N.Y. -- Science. 2008 Jan 18;319(5861):321-3. doi: 10.1126/science.1150349.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Economics and Finance, University of Wyoming, Laramie, WY 82071, USA. ebarbier@uwyo.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18202288" target="_blank"〉PubMed〈/a〉
    Keywords: Alismatidae ; Animals ; Anthozoa ; Aquaculture/economics ; *Conservation of Natural Resources/economics ; Cost-Benefit Analysis ; *Ecology ; *Ecosystem ; Fisheries/economics ; Lythraceae ; Penaeidae ; *Rhizophoraceae ; Thailand ; Trees ; Water Movements ; *Wetlands ; Wood
    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
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 6
    facet.materialart.
    Unknown
    Eddy/wind interactions stimulate extraordinary mid-ocean plankton blooms (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-05-19
    Description: Episodic eddy-driven upwelling may supply a significant fraction of the nutrients required to sustain primary productivity of the subtropical ocean. New observations in the northwest Atlantic reveal that, although plankton blooms occur in both cyclones and mode-water eddies, the biological responses differ. Mode-water eddies can generate extraordinary diatom biomass and primary production at depth, relative to the time series near Bermuda. These blooms are sustained by eddy/wind interactions, which amplify the eddy-induced upwelling. In contrast, eddy/wind interactions dampen eddy-induced upwelling in cyclones. Carbon export inferred from oxygen anomalies in eddy cores is one to three times as much as annual new production for the region.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGillicuddy, Dennis J Jr -- Anderson, Laurence A -- Bates, Nicholas R -- Bibby, Thomas -- Buesseler, Ken O -- Carlson, Craig A -- Davis, Cabell S -- Ewart, Courtney -- Falkowski, Paul G -- Goldthwait, Sarah A -- Hansell, Dennis A -- Jenkins, William J -- Johnson, Rodney -- Kosnyrev, Valery K -- Ledwell, James R -- Li, Qian P -- Siegel, David A -- Steinberg, Deborah K -- New York, N.Y. -- Science. 2007 May 18;316(5827):1021-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Woods Hole Oceanographic Institution, Woods Hole, MA 02543-1541, USA. dmcgillicuddy@whoi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17510363" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atlantic Ocean ; Biomass ; Carbon/analysis ; Chlorophyll/analysis ; Cyanobacteria/growth & development/physiology ; Diatoms/growth & development ; *Ecosystem ; Geologic Sediments ; Oxygen/analysis ; Photosynthesis ; Phytoplankton/growth & development/physiology ; Plankton/*growth & development/physiology ; Seasons ; *Seawater/chemistry ; *Water Movements ; *Wind ; Zooplankton/growth & development/physiology
    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
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 7
    facet.materialart.
    Unknown
    Genomic minimalism in the early diverging intestinal parasite Giardia lamblia (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-09-29
    Description: The genome of the eukaryotic protist Giardia lamblia, an important human intestinal parasite, is compact in structure and content, contains few introns or mitochondrial relics, and has simplified machinery for DNA replication, transcription, RNA processing, and most metabolic pathways. Protein kinases comprise the single largest protein class and reflect Giardia's requirement for a complex signal transduction network for coordinating differentiation. Lateral gene transfer from bacterial and archaeal donors has shaped Giardia's genome, and previously unknown gene families, for example, cysteine-rich structural proteins, have been discovered. Unexpectedly, the genome shows little evidence of heterozygosity, supporting recent speculations that this organism is sexual. This genome sequence will not only be valuable for investigating the evolution of eukaryotes, but will also be applied to the search for new therapeutics for this parasite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, Hilary G -- McArthur, Andrew G -- Gillin, Frances D -- Aley, Stephen B -- Adam, Rodney D -- Olsen, Gary J -- Best, Aaron A -- Cande, W Zacheus -- Chen, Feng -- Cipriano, Michael J -- Davids, Barbara J -- Dawson, Scott C -- Elmendorf, Heidi G -- Hehl, Adrian B -- Holder, Michael E -- Huse, Susan M -- Kim, Ulandt U -- Lasek-Nesselquist, Erica -- Manning, Gerard -- Nigam, Anuranjini -- Nixon, Julie E J -- Palm, Daniel -- Passamaneck, Nora E -- Prabhu, Anjali -- Reich, Claudia I -- Reiner, David S -- Samuelson, John -- Svard, Staffan G -- Sogin, Mitchell L -- AI42488/AI/NIAID NIH HHS/ -- AI43273/AI/NIAID NIH HHS/ -- AI51687/AI/NIAID NIH HHS/ -- R01 AI043273/AI/NIAID NIH HHS/ -- R01 AI048082/AI/NIAID NIH HHS/ -- R01 HG004164/HG/NHGRI NIH HHS/ -- R01 HG004164-01/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2007 Sep 28;317(5846):1921-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Marine Biological Laboratory, Woods Hole, MA 02543-1015, USA. morrison@mbl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17901334" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Biological Evolution ; DNA Replication/genetics ; *Eukaryotic Cells ; Gene Transfer, Horizontal ; Genes, Protozoan ; *Genome, Protozoan ; Genomics ; Giardia lamblia/classification/*genetics/physiology ; Metabolic Networks and Pathways/genetics ; Molecular Sequence Data ; Phylogeny ; Protein Kinases/genetics/metabolism ; Protozoan Proteins/chemistry/genetics/metabolism ; RNA Processing, Post-Transcriptional ; Signal Transduction ; Transcription, Genetic
    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
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 8
    facet.materialart.
    Unknown
    One-third of reef-building corals face elevated extinction risk from climate change and local impacts (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-07-26
    Description: The conservation status of 845 zooxanthellate reef-building coral species was assessed by using International Union for Conservation of Nature Red List Criteria. Of the 704 species that could be assigned conservation status, 32.8% are in categories with elevated risk of extinction. Declines in abundance are associated with bleaching and diseases driven by elevated sea surface temperatures, with extinction risk further exacerbated by local-scale anthropogenic disturbances. The proportion of corals threatened with extinction has increased dramatically in recent decades and exceeds that of most terrestrial groups. The Caribbean has the largest proportion of corals in high extinction risk categories, whereas the Coral Triangle (western Pacific) has the highest proportion of species in all categories of elevated extinction risk. Our results emphasize the widespread plight of coral reefs and the urgent need to enact conservation measures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carpenter, Kent E -- Abrar, Muhammad -- Aeby, Greta -- Aronson, Richard B -- Banks, Stuart -- Bruckner, Andrew -- Chiriboga, Angel -- Cortes, Jorge -- Delbeek, J Charles -- Devantier, Lyndon -- Edgar, Graham J -- Edwards, Alasdair J -- Fenner, Douglas -- Guzman, Hector M -- Hoeksema, Bert W -- Hodgson, Gregor -- Johan, Ofri -- Licuanan, Wilfredo Y -- Livingstone, Suzanne R -- Lovell, Edward R -- Moore, Jennifer A -- Obura, David O -- Ochavillo, Domingo -- Polidoro, Beth A -- Precht, William F -- Quibilan, Miledel C -- Reboton, Clarissa -- Richards, Zoe T -- Rogers, Alex D -- Sanciangco, Jonnell -- Sheppard, Anne -- Sheppard, Charles -- Smith, Jennifer -- Stuart, Simon -- Turak, Emre -- Veron, John E N -- Wallace, Carden -- Weil, Ernesto -- Wood, Elizabeth -- New York, N.Y. -- Science. 2008 Jul 25;321(5888):560-3. doi: 10.1126/science.1159196. Epub 2008 Jul 10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉IUCN (International Union for Conservation of Nature) Species Programme Species Survival Commission (SSC), Biological Sciences, Old Dominion University, Norfolk, VA 23529, USA. kcarpent@odu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18653892" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Anthozoa/classification/growth & development ; Caribbean Region ; *Climate ; Conservation of Natural Resources ; *Ecosystem ; *Extinction, Biological ; Greenhouse Effect ; Indian Ocean ; Pacific Ocean ; Risk Assessment ; *Seawater ; Species Specificity ; 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
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 9
    facet.materialart.
    Unknown
    Revisiting carbon flux through the ocean's twilight zone (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-04-28
    Description: The oceanic biological pump drives sequestration of carbon dioxide in the deep sea via sinking particles. Rapid biological consumption and remineralization of carbon in the "twilight zone" (depths between the euphotic zone and 1000 meters) reduce the efficiency of sequestration. By using neutrally buoyant sediment traps to sample this chronically understudied realm, we measured a transfer efficiency of sinking particulate organic carbon between 150 and 500 meters of 20 and 50% at two contrasting sites. This large variability in transfer efficiency is poorly represented in biogeochemical models. If applied globally, this is equivalent to a difference in carbon sequestration of more than 3 petagrams of carbon per year.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buesseler, Ken O -- Lamborg, Carl H -- Boyd, Philip W -- Lam, Phoebe J -- Trull, Thomas W -- Bidigare, Robert R -- Bishop, James K B -- Casciotti, Karen L -- Dehairs, Frank -- Elskens, Marc -- Honda, Makio -- Karl, David M -- Siegel, David A -- Silver, Mary W -- Steinberg, Deborah K -- Valdes, Jim -- Van Mooy, Benjamin -- Wilson, Stephanie -- New York, N.Y. -- Science. 2007 Apr 27;316(5824):567-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA. kbuesseler@whoi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17463282" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Carbon/metabolism ; Carbon Dioxide ; Copepoda/physiology ; *Ecosystem ; Food Chain ; Geologic Sediments/chemistry ; Hydrogen-Ion Concentration ; Pacific Ocean ; Phytoplankton/physiology ; *Seawater/chemistry ; Zooplankton/physiology
    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
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Promotion of tissue inflammation by the immune receptor Tim-3 expressed on innate immune cells (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-11-17
    Description: CD4+ T helper 1 (TH1) cells are important mediators of inflammation and are regulated by numerous pathways, including the negative immune receptor Tim-3. We found that Tim-3 is constitutively expressed on cells of the innate immune system in both mice and humans, and that it can synergize with Toll-like receptors. Moreover, an antibody agonist of Tim-3 acted as an adjuvant during induced immune responses, and Tim-3 ligation induced distinct signaling events in T cells and dendritic cells; the latter finding could explain the apparent divergent functions of Tim-3 in these cell types. Thus, by virtue of differential expression on innate versus adaptive immune cells, Tim-3 can either promote or terminate TH1 immunity and may be able to influence a range of inflammatory conditions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, Ana C -- Anderson, David E -- Bregoli, Lisa -- Hastings, William D -- Kassam, Nasim -- Lei, Charles -- Chandwaskar, Rucha -- Karman, Jozsef -- Su, Ee W -- Hirashima, Mitsuomi -- Bruce, Jeffrey N -- Kane, Lawrence P -- Kuchroo, Vijay K -- Hafler, David A -- R01 AI067544/AI/NIAID NIH HHS/ -- R01 AI067544-01A2/AI/NIAID NIH HHS/ -- R56 AI067544/AI/NIAID NIH HHS/ -- R56 AI067544-01A1/AI/NIAID NIH HHS/ -- R56 AI067544-02/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2007 Nov 16;318(5853):1141-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Immunology, Center for Neurologic Diseases, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18006747" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD11b/immunology ; Astrocytes/immunology ; Central Nervous System Neoplasms/immunology ; Dendritic Cells/immunology ; Encephalomyelitis, Autoimmune, Experimental/immunology ; Galectins/immunology ; Glioblastoma/immunology ; Humans ; Immunity, Innate ; Inflammation Mediators/*immunology ; Lipopolysaccharides/immunology ; Macrophages/immunology ; Membrane Proteins/biosynthesis/*immunology ; Mice ; Microglia/immunology ; Multiple Sclerosis/immunology ; Rats ; Receptors, Immunologic/biosynthesis/*immunology ; Receptors, Virus/biosynthesis/*immunology ; Signal Transduction ; T-Lymphocytes/immunology ; Th1 Cells/*immunology ; Toll-Like Receptors
    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
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...