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  • Amino Acid Sequence  (3)
  • *Soil  (2)
  • American Association for the Advancement of Science (AAAS)  (5)
  • Oxford University Press
Collection
Keywords
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  • American Association for the Advancement of Science (AAAS)  (5)
  • Oxford University Press
Years
  • 1
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    Ecology. Soil fertility and hunger in Africa (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-03-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanchez, Pedro A -- New York, N.Y. -- Science. 2002 Mar 15;295(5562):2019-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉International Center for Research in Agroforestry, Post Office Box 30677, Nairobi, Kenya. P.sanchez@cgiar.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11896257" target="_blank"〉PubMed〈/a〉
    Keywords: Africa South of the Sahara ; Agriculture/*methods ; Biomass ; Crops, Agricultural/*growth & development ; *Ecosystem ; Fertilizers ; *Food Supply ; Forestry ; Humans ; Hunger ; Nitrogen ; Nitrogen Fixation ; Phosphates ; Plant Development ; Public Policy ; *Soil ; Trees/growth & development ; United Nations ; Zea mays/growth & development
    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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    Beta-catenin defines head versus tail identity during planarian regeneration and homeostasis (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007
    Description: After amputation, freshwater planarians properly regenerate a head or tail from the resulting anterior or posterior wound. The mechanisms that differentiate anterior from posterior and direct the replacement of the appropriate missing body parts are unknown. We found that in the planarian Schmidtea mediterranea, RNA interference (RNAi) of beta-catenin or dishevelled causes the inappropriate regeneration of a head instead of a tail at posterior amputations. Conversely, RNAi of the beta-catenin antagonist adenomatous polyposis coli results in the regeneration of a tail at anterior wounds. In addition, the silencing of beta-catenin is sufficient to transform the tail of uncut adult animals into a head. We suggest that beta-catenin functions as a molecular switch to specify and maintain anteroposterior identity during regeneration and homeostasis in planarians.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2755502/" 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/PMC2755502/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gurley, Kyle A -- Rink, Jochen C -- Sanchez Alvarado, Alejandro -- F32GM082016/GM/NIGMS NIH HHS/ -- R0-1 GM57260/GM/NIGMS NIH HHS/ -- R01 GM057260/GM/NIGMS NIH HHS/ -- R01 GM057260-08/GM/NIGMS NIH HHS/ -- T32CA093247/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2008 Jan 18;319(5861):323-7. Epub 2007 Dec 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology and Anatomy, Howard Hughes Medical Institute, University of Utah School of Medicine, 401 MREB, 20N 1900E, Salt Lake City, UT 84132, USA. sanchez@neuro.utah.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18063757" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/chemistry/genetics/physiology ; Adenomatous Polyposis Coli Protein/chemistry/physiology ; Amino Acid Sequence ; Animals ; Body Patterning ; Gene Expression Profiling ; Genes, APC ; Head ; Helminth Proteins/chemistry/genetics/physiology ; Homeostasis ; Molecular Sequence Data ; Phosphoproteins/chemistry/genetics/physiology ; Planarians/genetics/*physiology ; RNA Interference ; *Regeneration ; Signal Transduction ; Tail ; beta Catenin/chemistry/genetics/*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)
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  • 3
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    Agriculture. Nutrient imbalances in agricultural development (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-06-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vitousek, P M -- Naylor, R -- Crews, T -- David, M B -- Drinkwater, L E -- Holland, E -- Johnes, P J -- Katzenberger, J -- Martinelli, L A -- Matson, P A -- Nziguheba, G -- Ojima, D -- Palm, C A -- Robertson, G P -- Sanchez, P A -- Townsend, A R -- Zhang, F S -- New York, N.Y. -- Science. 2009 Jun 19;324(5934):1519-20. doi: 10.1126/science.1170261.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Stanford University, Stanford, CA 94305, USA. vitousek@stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19541981" target="_blank"〉PubMed〈/a〉
    Keywords: *Agriculture/methods ; China ; Environmental Pollution ; Fertilizers ; Kenya ; Nitrogen ; Phosphorus ; *Soil ; United States ; *Zea mays/growth & development
    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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  • 4
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    Characterization of a novel coronavirus associated with severe acute respiratory syndrome (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-06
    Description: In March 2003, a novel coronavirus (SARS-CoV) was discovered in association with cases of severe acute respiratory syndrome (SARS). The sequence of the complete genome of SARS-CoV was determined, and the initial characterization of the viral genome is presented in this report. The genome of SARS-CoV is 29,727 nucleotides in length and has 11 open reading frames, and its genome organization is similar to that of other coronaviruses. Phylogenetic analyses and sequence comparisons showed that SARS-CoV is not closely related to any of the previously characterized coronaviruses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rota, Paul A -- Oberste, M Steven -- Monroe, Stephan S -- Nix, W Allan -- Campagnoli, Ray -- Icenogle, Joseph P -- Penaranda, Silvia -- Bankamp, Bettina -- Maher, Kaija -- Chen, Min-Hsin -- Tong, Suxiong -- Tamin, Azaibi -- Lowe, Luis -- Frace, Michael -- DeRisi, Joseph L -- Chen, Qi -- Wang, David -- Erdman, Dean D -- Peret, Teresa C T -- Burns, Cara -- Ksiazek, Thomas G -- Rollin, Pierre E -- Sanchez, Anthony -- Liffick, Stephanie -- Holloway, Brian -- Limor, Josef -- McCaustland, Karen -- Olsen-Rasmussen, Melissa -- Fouchier, Ron -- Gunther, Stephan -- Osterhaus, Albert D M E -- Drosten, Christian -- Pallansch, Mark A -- Anderson, Larry J -- Bellini, William J -- New York, N.Y. -- Science. 2003 May 30;300(5624):1394-9. Epub 2003 May 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA. prota@cdc.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12730500" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Conserved Sequence ; Coronavirus/classification/genetics ; DNA, Complementary ; Endopeptidases/chemistry/genetics ; *Genome, Viral ; Humans ; Membrane Glycoproteins/chemistry/genetics ; Molecular Sequence Data ; Nucleocapsid Proteins/chemistry/genetics ; Open Reading Frames ; Phylogeny ; Polyproteins/chemistry/genetics ; RNA Replicase/chemistry/genetics ; RNA, Messenger/genetics/metabolism ; RNA, Viral/*genetics ; Regulatory Sequences, Nucleic Acid ; SARS Virus/chemistry/classification/*genetics/isolation & purification ; Sequence Analysis, DNA ; Severe Acute Respiratory Syndrome/virology ; Spike Glycoprotein, Coronavirus ; Transcription, Genetic ; Viral Envelope Proteins/chemistry/genetics ; Viral Matrix Proteins/chemistry/genetics ; Viral Proteins/chemistry/*genetics
    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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  • 5
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    SMEDWI-2 is a PIWI-like protein that regulates planarian stem cells (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-11-29
    Description: We have identified two genes, smedwi-1 and smedwi-2, expressed in the dividing adult stem cells (neoblasts) of the planarian Schmidtea mediterranea. Both genes encode proteins that belong to the Argonaute/PIWI protein family and that share highest homology with those proteins defined by Drosophila PIWI. RNA interference (RNAi) of smedwi-2 blocks regeneration, even though neoblasts are present, irradiation-sensitive, and capable of proliferating in response to wounding; smedwi-2(RNAi) neoblast progeny migrate to sites of cell turnover but, unlike normal cells, fail at replacing aged tissue. We suggest that SMEDWI-2 functions within dividing neoblasts to support the generation of cells that promote regeneration and homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reddien, Peter W -- Oviedo, Nestor J -- Jennings, Joya R -- Jenkin, James C -- Sanchez Alvarado, Alejandro -- R0-1 GM57260/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2005 Nov 25;310(5752):1327-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Neurobiology and Anatomy, University of Utah School of Medicine, Salt Lake City, UT 84132, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16311336" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Count ; Cell Differentiation ; Cell Division ; Cell Movement ; Cell Separation ; Cell Shape ; Cyclin B/genetics ; Flow Cytometry ; Gene Expression ; *Genes, Helminth ; Helminth Proteins/genetics/*physiology ; Homeostasis ; Mitosis ; Molecular Sequence Data ; Phenotype ; Planarians/chemistry/*cytology/genetics/*physiology ; RNA Interference ; Regeneration ; Stem Cells/cytology/*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)
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