Table of Contents (PDF)

Total Page:16

File Type:pdf, Size:1020Kb

Table of Contents (PDF) July 17, 2007 ͉ vol. 104 ͉ no. 29 ͉ 11863–12228 Proceedings of the National Academy ofPNAS Sciences of the United States of America www.pnas.org Cover image: Methane-oxidizing bacteria (Methylosinus trichosporium OB3b) cluster on copper- doped glass. Methanotrophic bacteria suppress methane, a major greenhouse gas. Expression of the bacterial enzyme methane monooxygenase is regulated by copper. Solid-phase copper geochemistry determines whether the metal is available for use. See the article by Knapp et al. on pages 12040–12045. Image courtesy of Ezra Kulczycki. From the Cover 12040 Copper geochemistry and methanotrophs 11901 Fabricating complex nanoparticles 11957 Fast dynamics of supercoiled DNA 12151 Inhibiting a TB virulence factor 12175 Stem cells reduce primate Parkinson’s symptoms Contents INAUGURAL ARTICLES 11874 Late Pleistocene and Holocene environmental history of the Iguala Valley, Central Balsas Watershed of Mexico THIS WEEK IN PNAS D. R. Piperno, J. E. Moreno, J. Iriarte, I. Holst, M. Lachniet, J. G. Jones, A. J. Ranere, and R. Castanzo ➜ 11863 In This Issue See Profile on page 11871 11882 A comparative analysis of frog early development Eugenia M. del Pino, Michael Venegas-Ferrı´n, Andre´s COMMENTARIES Romero-Carvajal, Paola Montenegro-Larrea, Natalia Sa´enz-Ponce, Iva´n M. Moya, Ingrid Alarco´n, Norihiro 11865 Developmental genomics of the most dangerous animal Sudou, Shinji Yamamoto, and Masanori Taira Matthew P. Scott ➜ See companion article on page 11304 in issue 27 PHYSICAL SCIENCES of volume 104 11867 Physiology versus pathology in Parkinson’s disease APPLIED PHYSICAL SCIENCES Ken Nakamura and Robert H. Edwards 11889 Dissecting biological ‘‘dark matter’’ with single-cell ➜ See companion article on page 11441 in issue 27 genetic analysis of rare and uncultivated TM7 of volume 104 microbes from the human mouth Yann Marcy, Cleber Ouverney, Elisabeth M. Bik, Tina 11869 Neural stem cells for Parkinson’s disease: To protect Lo¨sekann, Natalia Ivanova, Hector Garcia Martin, and repair Ernest Szeto, Darren Platt, Philip Hugenholtz, Paul R. Sanberg David A. Relman, and Stephen R. Quake ➜ See companion article on page 12175 CHEMISTRY PROFILE 11895 Electrochemical attosyringe Franc¸ois O. Laforge, James Carpino, Susan A. Rotenberg, and Michael V. Mirkin 11871 Profile of Dolores R. Piperno Tinsley H. Davis ENGINEERING ➜ See Inaugural Article on page 11874 11901 Making polymeric micro- and nanoparticles of complex shapes Julie A. Champion, Yogesh K. Katare, Freely available online through the PNAS open access option. and Samir Mitragotri PNAS ͉ July 17, 2007 ͉ vol. 104 ͉ no. 29 ͉ iii–vi Downloaded by guest on September 30, 2021 12169 Retinotopic mapping of adult human visual cortex 11951 Directed evolution can rapidly improve the activity with high-density diffuse optical tomography of chimeric assembly-line enzymes Benjamin W. Zeff, Brian R. White, Hamid Dehghani, Michael A. Fischbach, Jonathan R. Lai, Eric D. Bradley L. Schlaggar, and Joseph P. Culver Roche, Christopher T. Walsh, and David R. Liu SOCIAL SCIENCES BIOPHYSICS 11957 Fast dynamics of supercoiled DNA revealed by single-molecule experiments ANTHROPOLOGY Aure´lienCrut, Daniel A. Koster, Ralf Seidel, 11874 Late Pleistocene and Holocene environmental history of Chris H. Wiggins, and Nynke H. Dekker the Iguala Valley, Central Balsas Watershed of Mexico D. R. Piperno, J. E. Moreno, J. Iriarte, I. Holst, M. Lachniet, 11963 The design and characterization of two proteins with J. G. Jones, A. J. Ranere, and R. Castanzo 88% sequence identity but different structure ➜ See Profile on page 11871 and function Patrick A. Alexander, Yanan He, Yihong Chen, 11905 Precolumbian use of chili peppers in the Valley John Orban, and Philip N. Bryan of Oaxaca, Mexico 11969 Identifying important structural characteristics of arsenic Linda Perry and Kent V. Flannery resistance proteins by using designed three-stranded coiled coils BIOLOGICAL SCIENCES Debra S. Touw, Christer E. Nordman, Jeanne A. Stuckey, and Vincent L. Pecoraro ANTHROPOLOGY 11975 Substrate-dependent transmembrane signaling 11910 Congruence of molecules and morphology using in TonB-dependent transporters is not conserved a narrow allometric approach Miyeon Kim, Gail E. Fanucci, and David S. Cafiso Christopher C. Gilbert and James B. Rossie 11981 The mechanism of rate-limiting motions in enzyme function APPLIED BIOLOGICAL SCIENCES Eric D. Watt, Hiroko Shimada, Evgenii L. 11915 Antithrombogenic property of bone marrow Kovrigin, and J. Patrick Loria mesenchymal stem cells in nanofibrous vascular grafts 11987 Protein folding by zipping and assembly Craig K. Hashi, Yiqian Zhu, Guo-Yuan Yang, S. Banu Ozkan, G. Albert Wu, John D. William L. Young, Benjamin S. Hsiao, Karin Chodera, and Ken A. Dill Wang, Benjamin Chu, and Song Li 11993 Observation of sequential steps in the folding of intestinal fatty acid binding protein using BIOCHEMISTRY a slow folding mutant and 19F NMR 11921 Hot spots in prion protein for pathogenic conversion Hua Li and Carl Frieden Kazuo Kuwata, Noriyuki Nishida, Tomoharu Matsumoto, Yuji O. Kamatari, Junji Hosokawa-Muto, Kota Kodama, CELL BIOLOGY Hironori K. Nakamura, Kiminori Kimura, Makoto ⌬ Kawasaki, Yuka Takakura, Susumu Shirabe, Jiro 11999 Np63 regulates thymic development through enhanced Takata, Yasufumi Kataoka, and Shigeru Katamine expression of FgfR2 and Jag2 Eleonora Candi, Alessandro Rufini, Alessandro Terrinoni, 11927 Discovery of antiandrogen activity of nonsteroidal Alessandro Giamboi-Miraglia, Anna Maria Lena, Roberto scaffolds of marketed drugs Mantovani, Richard Knight, and Gerry Melino W. H. Bisson, A. V. Cheltsov, N. Bruey-Sedano, B. Lin, 12005 Essential role for MFG-E8 as ligand for ␣v␤5 integrin J. Chen, N. Goldberger, L. T. May, A. Christopoulos, in diurnal retinal phagocytosis J. T. Dalton, P. M. Sexton, X.-K. Zhang, and R. Abagyan Emeline F. Nandrot, Monika Anand, Dena Almeida, Kamran Atabai, Dean Sheppard, and Silvia C. Finnemann 11933 Src phosphorylation of cortactin enhances actin assembly Shandiz Tehrani, Nenad Tomasevic, Scott Weed, 12011 Functional specialization of ␤-arrestin interactions Roman Sakowicz, and John A. Cooper revealed by proteomic analysis Kunhong Xiao, Daniel B. McClatchy, Arun K. Shukla, 11939 Structural consequences of disease-causing mutations Yang Zhao, Minyong Chen, Sudha K. Shenoy, in the ATRX-DNMT3-DNMT3L (ADD) domain John R. Yates III, and Robert J. Lefkowitz of the chromatin-associated protein ATRX Anthony Argentaro, Ji-Chun Yang, Lynda Chapman, 12017 AMP-activated protein kinase (AMPK) action in skeletal Monika S. Kowalczyk, Richard J. Gibbons, Douglas R. muscle via direct phosphorylation of PGC-1␣ Higgs, David Neuhaus, and Daniela Rhodes Sibylle Ja¨ger, Christoph Handschin, Julie St.-Pierre, and Bruce M. Spiegelman 11945 Packing contacts can mediate highly specific interactions between artificial transmembrane proteins 12023 Otopetrin 1 activation by purinergic nucleotides and the PDGF␤ receptor regulates intracellular calcium Jennifer B. Ptacek, Anne P. B. Edwards, Inna Hughes, Mitsuyoshi Saito, Paul H. Schlesinger, Lisa L. Freeman-Cook, and Daniel DiMaio and David M. Ornitz iv ͉ www.pnas.org Downloaded by guest on September 30, 2021 DEVELOPMENTAL BIOLOGY 12081 Natural killer cells actively patrol peripheral lymph 11882 A comparative analysis of frog early development nodes forming stable conjugates to eliminate MHC-mismatched targets Eugenia M. del Pino, Michael Venegas-Ferrı´n, Andre´s Romero-Carvajal, Paola Montenegro-Larrea, Natalia Kym R. Garrod, Sindy H. Wei, Ian Parker, Sa´enz-Ponce, Iva´n M. Moya, Ingrid Alarco´n, Norihiro and Michael D. Cahalan ؉ Sudou, Shinji Yamamoto, and Masanori Taira 12087 Association of cervical cancer with the presence of CD4 regulatory T cells specific for human 12029 Vertebrate Ctr1 coordinates morphogenesis and papillomavirus antigens progenitor cell fate and regulates embryonic Sjoerd H. van der Burg, Sytse J. Piersma, Annemieke de Jong, stem cell differentiation Jeanette M. van der Hulst, Kitty M. C. Kwappenberg, Muriel Tomomi Haremaki, Stuart T. Fraser, Yien-Ming Kuo, van den Hende, Marij J. P. Welters, Jon J. Van Rood, Margaret H. Baron, and Daniel C. Weinstein Gert Jan Fleuren, Cornelis J. M. Melief, Gemma G. Kenter, and Rienk Offringa ENVIRONMENTAL SCIENCES 12093 Peripheral deletion of mature alloreactive B cells induced by costimulation blockade 11874 Late Pleistocene and Holocene environmental history of Yijin Li, Lianli Ma, Jikun Shen, and Anita S. Chong the Iguala Valley, Central Balsas Watershed of Mexico D. R. Piperno, J. E. Moreno, J. Iriarte, I. Holst, M. Lachniet, 12099 IL-6-dependent and -independent pathways in the J. G. Jones, A. J. Ranere, and R. Castanzo development of interleukin 17-producing T helper cells ➜ See Profile on page 11871 Akihiro Kimura, Tetsuji Naka, and Tadamitsu Kishimoto 12105 Akt1 and Akt2 are required for ␣␤ thymocyte survival 12035 Hurricanes benefit bleached corals and differentiation Derek P. Manzello, Marilyn Brandt, Tyler B. Smith, Diego Marisa M. Juntilla, Jessica A. Wofford, Morris J. Birnbaum, Lirman, James C. Hendee, and Richard S. Nemeth Jeffrey C. Rathmell, and Gary A. Koretzky 12040 Methane monooxygenase gene expression mediated MEDICAL SCIENCES by methanobactin in the presence of mineral copper sources 12111 Somatic loss of BRCA1 and p53 in mice induces Charles W. Knapp, David A. Fowle, Ezra Kulczycki, mammary tumors with features of human Jennifer A. Roberts, and David W. Graham BRCA1-mutated basal-like breast cancer Xiaoling Liu, Henne Holstege, Hanneke
Recommended publications
  • Summaries of FY 2001 Activities Energy Biosciences
    Summaries of FY 2001 Activities Energy Biosciences August 2002 ABSTRACTS OF PROJECTS SUPPORTED IN FY 2001 (NOTE: Dollar amounts are for a twelve-month period using FY 2001 funds unless otherwise stated) 1. U.S. Department of Agriculture Urbana, IL 61801 Biochemical and molecular analysis of a new control pathway in assimilate partitioning Daniel R. Bush, USDA-ARS and Department of Plant Biology, University of Illinois at Urbana- Champaign $72,666 (21 months) Plant leaves capture light energy from the sun and transform that energy into a useful form in the process called photosynthesis. The primary product of photosynthesis is sucrose. Generally, 50 to 80% of the sucrose synthesized is transported from the leaf to supply organic nutrients to many of the edible parts of the plant such as fruits, grains, and tubers. This resource allocation process is called assimilate partitioning and alterations in this system are known to significantly affect crop productivity. We recently discovered that sucrose plays a second vital role in assimilate partitioning by acting as a signal molecule that regulates the activity and gene expression of the proton-sucrose symporter that mediates long-distance sucrose transport. Research this year showed that symporter protein and transcripts turn-over with half-lives of about 2 hr and, therefore, sucrose transport activity and phloem loading are directly proportional to symporter transcription. Moreover, we showed that sucrose is a transcriptional regulator of symporter expression. We concluded from those results that sucrose-mediated transcriptional regulation of the sucrose symporter plays a key role in coordinating resource allocation in plants. 2. U.
    [Show full text]
  • Table of Contents (PDF)
    September 25, 2018 u vol. 115 u no. 39 From the Cover 9714 Social networks and partisan bias E9153 mRNA-based cancer vaccine E9182 Gene therapy and muscular dystrophy 9672 Ion-conducting perovskite materials 9779 Arginine deprivation and tuberculosis Contents THIS WEEK IN PNAS 9641 In This Issue Cover image: Pictured is a cliff exposed by glacial retreat. Douglas Guilbeault et al. found that in bipartisan social LETTERS (ONLINE ONLY) networks, liberals’ and conservatives’ interpretations of data on Arctic sea ice E9026 Pitfall of big databases became more accurate and less biased Zhangqiang You, Junhua Hu, Qing Wei, Chunwang Li, Xiaofei Deng, and Zhigang Jiang upon exposure to each other’s opinions E9029 Reply to You et al.: The World Database on Protected Areas is an invaluable in the absence of political imagery. resource for global conservation assessments and planning However, such effects were not Paul R. Elsen, William B. Monahan, and Adina M. Merenlender observed when participants were exposed to each other’s opinions in the presence of political party logos. The OPINION—Leading scientists discuss current issues results suggest that exposure to 9642 Reconsidering bioenergy given the urgency of climate protection opposing views can reduce partisan bias John M. DeCicco and William H. Schlesinger in interpretation of climate data, but only in the absence of political cues. See the article by Guilbeault et al. on pages PROFILE 9714–9719. Image courtesy of Unsplash/ 9646 Profile of Yuval Peres Yiran Ding. Sandeep Ravindran See Inaugural Article on page 9666 COMMENTARIES 9649 More security may actually make us feel less secure Vesla M.
    [Show full text]
  • From Telomeres to Empathy Highlights from the EMBO Meeting 2010 by CRISTINA JIMÉNEZ
    AUTUMN 2010 encounters Newsletter of the European Molecular Biology Organization From telomeres to empathy Highlights from The EMBO Meeting 2010 BY CRISTINA JIMÉNEZ ◗ In the early 1980s, after a meeting at the Gordon Research Conference, Elizabeth Blackburn and Jack Szostak discovered that telo meres include a specifi c DNA sequence. 29 years on, the fortuitous encounter resulted in a Nobel Prize for discovering the structure Elizabeth Frans de Waal Blackburn of molecular caps called telomeres and for working out how they protect chromosomes from degradation. This is only one fi brillation, a condition in Richard example of how necessary meetings can be for the advancement of sci- which there is uncoordinated Losick ence. They provide a perfect setting for junior researchers to approach contraction of the cardiac prospective supervisors – and vice versa. They can lead to new part- muscle of the ventricles in the nerships between research groups working in similar fi elds. And they heart, making them quiver also inspire open discussion and collaboration between institutions. rather than contract properly. The EMBO Meeting, held in September in Barcelona, gathered more Haïssaguerre explained how than 1,300 researchers from a broad scope of disciplines, extending he is currently having great from synthetic, developmental and evolutionary biologists to plant success in curing hundreds of scientists and neuroscientists. “Postdocs and PhD students are the patients every year from this main benefi ciaries of these meetings,” pointed out Luis Serrano, who sort of arrhythmia. Austin co-organized the meeting with Denis Duboule. Smith, the other prize winner, | Barcelona © Christine Panagiotidis The meeting kicked off on Saturday 4 September with Richard Losick gave a lecture on stem cells and the Design principles of pluripotency.
    [Show full text]
  • A N N U a L R E P O R T 2 0
    0 1 0 2 Acknowledgements T R HFSPO is grateful for the support of the following organizations: O P Australia E R National Health and Medical Research Council (NHMRC) L Canada A Canadian Institute of Health Research (CIHR) U Natural Sciences and Engineering Research Council (NSERC) N European Union N European Commission - A Directorate General Information Society (DG INFSO) European Commission - Directorate General Research (DG RESEARCH) France Communauté Urbaine de Strasbourg (CUS) Ministère des Affaires Etrangères et Européennes (MAEE) Ministère de l’Enseignement Supérieur et de la Recherche (MESR) Région Alsace Germany Federal Ministry of Education and Research (BMBF) India Department of Biotechnology (DBT), Ministry of Science and Technology Italy Ministry of Education, University and Research (CNR) Japan Ministry for Economy, Trade and Industry (METI) Ministry of Education, Culture, Sports, Science and Technology (MEXT) Republic of Korea Ministry of Education, Science and Technology (MEST) New Zealand Health Research Council (HRC) Norway Research Council of Norway (RCN) Switzerland State Secretariat for Education and Research (SER) United Kingdom The International Human Frontier Science Biotechnology and Biological Sciences Research Program Organization (HFSPO) Council (BBSRC) 12 quai Saint Jean - BP 10034 Medical Research Council (MRC) 67080 Strasbourg CEDEX - France Fax. +33 (0)3 88 32 88 97 United States of America e-mail: [email protected] National Institutes of Health (NIH) Web site: www.hfsp.org National Science Foundation (NSF) Japanese web site: http://jhfsp.jsf.or.jp HUMAN FRONTIER SCIENCE PROGRAM The Human Frontier Science Program is unique, supporting international collaboration to undertake innovative, risky, basic research at the frontiers of the life sciences.
    [Show full text]
  • Trip the Light Magnetic Stimulate Flowering Independently of Research Center in San Jose, California, and Science 325, 973–976 (2009) Daylight Cues
    NATUREVol 460|27|Vol August 460|27 2009 August 2009 RESEARCH HIGHLIGHTS Paul Rothemund of the California PHYSICS — molecules that prevent translation of Institute of Technology in Pasadena, messenger RNAs into proteins — can Gregory Wallraff of the IBM Almaden Trip the light magnetic stimulate flowering independently of Research Center in San Jose, California, and Science 325, 973–976 (2009) daylight cues. their colleagues now show that DNA, folded Researchers have coaxed the tiny particles They find that levels of microRNA-156 origami-style into triangles measuring 127 known as quantum dots to change their decline as the plant ages, parallelling a rise nanometres on each side, can slot neatly into magnetic properties simply by shining light in expression of the genes it seems to silence. matching depressions carved onto a silica on them. The finding is another development The products of these genes, called SPLs, set surface. in the quest to produce ‘spintronic’ devices off floral development. In principle, each chunk of DNA origami that rely on particles’ spin states, rather than can be attached to an individual molecule such their charge, to convey information. GEOSCIENCE as a conducting nanowire or a fluorescent By adding manganese to a chemical protein. As a result, these structures offer a suspension, or colloid, of cadmium Ground down way to control the positioning and orientation selenide quantum dots, Daniel Gamelin Nature Geosci. doi:10.1038/ngeo616 (2009) of single molecules using straightforward at the University of Washington in Glaciers are often said to be better than rivers lithographic techniques. Seattle and his co-workers were able to at eroding the land, in part because of the manipulate the particles’ magnetism in dramatic landscapes they leave behind.
    [Show full text]
  • Pnas11052ackreviewers 5098..5136
    Acknowledgment of Reviewers, 2013 The PNAS editors would like to thank all the individuals who dedicated their considerable time and expertise to the journal by serving as reviewers in 2013. Their generous contribution is deeply appreciated. A Harald Ade Takaaki Akaike Heather Allen Ariel Amir Scott Aaronson Karen Adelman Katerina Akassoglou Icarus Allen Ido Amit Stuart Aaronson Zach Adelman Arne Akbar John Allen Angelika Amon Adam Abate Pia Adelroth Erol Akcay Karen Allen Hubert Amrein Abul Abbas David Adelson Mark Akeson Lisa Allen Serge Amselem Tarek Abbas Alan Aderem Anna Akhmanova Nicola Allen Derk Amsen Jonathan Abbatt Neil Adger Shizuo Akira Paul Allen Esther Amstad Shahal Abbo Noam Adir Ramesh Akkina Philip Allen I. Jonathan Amster Patrick Abbot Jess Adkins Klaus Aktories Toby Allen Ronald Amundson Albert Abbott Elizabeth Adkins-Regan Muhammad Alam James Allison Katrin Amunts Geoff Abbott Roee Admon Eric Alani Mead Allison Myron Amusia Larry Abbott Walter Adriani Pietro Alano Isabel Allona Gynheung An Nicholas Abbott Ruedi Aebersold Cedric Alaux Robin Allshire Zhiqiang An Rasha Abdel Rahman Ueli Aebi Maher Alayyoubi Abigail Allwood Ranjit Anand Zalfa Abdel-Malek Martin Aeschlimann Richard Alba Julian Allwood Beau Ances Minori Abe Ruslan Afasizhev Salim Al-Babili Eric Alm David Andelman Kathryn Abel Markus Affolter Salvatore Albani Benjamin Alman John Anderies Asa Abeliovich Dritan Agalliu Silas Alben Steven Almo Gregor Anderluh John Aber David Agard Mark Alber Douglas Almond Bogi Andersen Geoff Abers Aneel Aggarwal Reka Albert Genevieve Almouzni George Andersen Rohan Abeyaratne Anurag Agrawal R. Craig Albertson Noga Alon Gregers Andersen Susan Abmayr Arun Agrawal Roy Alcalay Uri Alon Ken Andersen Ehab Abouheif Paul Agris Antonio Alcami Claudio Alonso Olaf Andersen Soman Abraham H.
    [Show full text]
  • Fifth Annual DOE Joint Genome Institute User Meeting
    Fifth Annual DOE Joint Genome Institute User Meeting Sponsored By U.S. Department of Energy Office of Science March 24–26, 2010 Walnut Creek Marriott Walnut Creek, California Contents Speaker Presentations ......................................................................................... 1 Poster Presentations........................................................................................... 11 Attendees............................................................................................................. 67 Author Index ...................................................................................................... 75 iii iv Speaker Presentations Abstracts alphabetical by speaker Solving Problems With Sequences Rita Colwell ([email protected]) University of Maryland, College Park Genome Insights Into Early Fungal Evolution and Global Population Diversity of the Amphibian Pathogen Batrachochytrium dendroabatidis Christina Cuomo ([email protected]) Broad Institute, Cambridge, Massachusetts Batrachochytrium dendrobatidis (Bd) is a fungal pathogen of amphibians implicated as a primary causative agent of amphibian declines. The genome sequence of Bd was the first representative of the early diverging group of aquatic fungi known as chytrids. With the JGI, we have sequenced and assembled the genomes of two diploids strains: JEL423, isolated from a sick Phylomedusa lemur frog from Panama and JAM81, an isolate from Sierra Nevada, CA. By identifying polymorphisms between these two assemblies with survey
    [Show full text]
  • Arabidopsis Thaliana Functional Genomics Project Annual Report 2008
    The Multinational Coordinated Arabidopsis thaliana Functional Genomics Project Annual Report 2008 Xing Wang Deng [email protected] Chair Joe Kieber [email protected] Co-chair Joanna Friesner [email protected] MASC Coordinator and Executive Secretary Thomas Altmann [email protected] Sacha Baginsky [email protected] Ruth Bastow [email protected] Philip Benfey [email protected] David Bouchez [email protected] Jorge Casal [email protected] Danny Chamovitz [email protected] Bill Crosby [email protected] Joe Ecker [email protected] Klaus Harter [email protected] Marie-Theres Hauser [email protected] Pierre Hilson [email protected] Eva Huala [email protected] Jaakko Kangasjärvi [email protected] Julin Maloof [email protected] Sean May [email protected] Peter McCourt [email protected] Harvey Millar [email protected] Ortrun Mittelsten- Scheid [email protected] Basil Nikolau [email protected] Javier Paz-Ares [email protected] Chris Pires [email protected] Barry Pogson [email protected] Ben Scheres [email protected] Randy Scholl [email protected] Heiko Schoof [email protected] Kazuo Shinozaki [email protected] Klaas van Wijk [email protected] Paola Vittorioso [email protected] Wolfram Weckwerth [email protected] Weicai Yang [email protected] The Multinational Arabidopsis Steering Committee—July 2008 Front Cover Design Philippe Lamesch, Curator at TAIR/Carnegie Institute for Science, and Joanna Friesner, MASC Coordinator at the University of California, Davis, USA Images Map of geographical distribution of ecotypes of Arabidopsis thaliana Updated representation contributed by Philippe Lamesch, adapted from Jonathon Clarke, UK (1993).
    [Show full text]
  • Curriculum Vitae Prof. Dr. Detlef Weigel
    Curriculum Vitae Prof. Dr. Detlef Weigel Name: Detlef Weigel Geboren: 15.12.1961 Forschungsschwerpunkte: Molekularbiologie, Mechanismen der pflanzlichen Entwicklung, Anpassung, Genetische Vielfalt, Hybride, Epigenetik Detlef Weigel ist Molekularbiologe, sein Schwerpunkt ist die genetische Variation bei Pflanzen. Er erforscht, wie Pflanzen sich kurz‐ und langfristig an eine sich ständig ändernde Umgebung anpassen. Seine früheren Arbeiten zur Regulation des Blühzeitpunktes und der Rolle von MicroRNAs bei der Entwicklung sowie seine gegenwärtigen Studien zur Anpassungsfähigkeit von Pflanzenarten sind sowohl für die Grundlagenforschung als auch für die Pflanzenzüchtung bedeutsam. Akademischer und beruflicher Werdegang seit 2004 Honorarprofessor, Eberhard‐Karls‐Universität Tübingen seit 2003 Honorarprofessor, The Salk Institute for Biological Studies, La Jolla, USA seit 2002 Wissenschaftliches Mitglied und Direktor der Abteilung Molekularbiologie am Max‐Planck‐Institut für Entwicklungsbiologie, Tübingen 1993 ‐ 2002 Assistant und Associate Professor, Leiter einer Arbeitsgruppe, The Salk Institute for Biological Studies, La Jolla, USA 1989 ‐ 1993 Postdoktorand, California Institute of Technology, Pasadena, USA 1988 ‐ 1989 Wissenschaftlicher Mitarbeiter, Ludwig‐Maximilians‐Universität München 1986 ‐ 1988 Promotion in Biologie am Max‐Planck‐Institut für Entwicklungsbiologie, Tübingen 1986 Diplom in Biologie, Universität zu Köln 1983 ‐ 1986 Studium der Biologie an der Universität zu Köln 1981 ‐ 1983 Studium der Biologie und Chemie an der Universität
    [Show full text]
  • The Scientist : Speciation's Roots?
    Volume 22 | Issue 5 | Page 19 By Alla Katsnelson Speciation's roots? About four years ago, Janne Lempe, then a graduate student at the Max Planck Institute for Developmental Biology in Tübingen, was hard at work on a series of experiments on the genetic regulation of flowering time in Arabidopsis thaliana. She crossed two strains, chosen for their difference in flowering time, and set off to the greenhouse to leave the seeds A normal Arabidopsis plant (center), surrounded by to grow. different hybrids formed by crossing two healthy plants. Researchers generally raise Kirsten Bomblies and Detlef Weigel, Max Planck Institute for Arabidopsis at 23° C, but with Developmental Biology, Tübingen the lab's main greenhouse full, Lempe plunked her experiment into the 16° C greenhouse next door. A few weeks on, her seedlings had produced stunted, stumpy, deformed versions of the hearty white-flowered weeds she was expecting. Her plants were not only unusually small, but their leaves were also covered in necrotic brown spots, and they'd failed to flower. ARTICLE EXTRAS Slideshow: Crossing Arabidopsis Strains Lempe's two starting strains, UK1 and UK3, were perfectly normal. So why would their offspring be sick? Right away, says Detlef Weigel, an evolutionary geneticist who supervised Lempe's doctoral research, "I thought this might have some bearing on speciation." Perhaps genes from one strain were incompatible with those in the other, creating in the offspring a gene-flow barrier, which is the first step to the evolution of a new species. Researchers have mapped genes in Drosophila that keep two species apart, but such studies can't resolve whether genetic incompatibilities drove speciation, or instead accumulated after the species diverged.
    [Show full text]
  • American Association for the Advancement of Science
    Bridging Science and Society aaas annual report | 2010 The American Association for the Advancement of Science (AAAS) is the world’s largest general scientific society and publisher of the journal Science (www.sciencemag.org) as well as Science Translational Medicine (www.sciencetranslationalmedicine.org) and Science Signaling (www.sciencesignaling.org). AAAS was founded in 1848 and includes some 262 affiliated societies and academies of science, serving 10 million individuals. Science has the largest paid circulation of any peer- reviewed general science journal in the world, with an estimated total readership of 1 million. The non-profit AAAS (www.aaas.org) is open to all and fulfills its mission to “advance science and serve society” through initiatives in science policy; international programs; science education; and more. For the latest research news, log onto EurekAlert!, www.eurekalert.org, the premier science- news Web site, a service of AAAS. American Association for the Advancement of Science 1200 New York Avenue, NW Washington, DC 20005 USA Tel: 202-326-6440 For more information about supporting AAAS, Please e-mail [email protected], or call 202-326-6636. The cover photograph of bridge construction in Kafue, Zambia, was captured in August 2006 by Alan I. Leshner. Bridge enhancements were intended to better connect a grass airfield with the Kafue National Park to help foster industry by providing tourists with easier access to new ecotourism camps. [FSC MixedSources logo / Rainforest Alliance Certified / 100 percent green
    [Show full text]
  • Chancellor Pushes the Red Button
    PERSPECTIVES Chancellor Pushes the Red Button High-level visit to the control room of the Wendelstein 7-X nuclear fusion re- actor: Chancellor Angela Merkel, a physicist herself, visited Greifswald in early February to switch on the first hydrogen plasma at the fusion reactor. “Every step we have taken toward the fusion power plant over the course of a century represents a success,” under- scored Merkel before a large audience from the realms of science and politics before getting down to action. For the all-important push of the button, em- ployees from the Max Planck Institute of Plasma Physics had a glass cube structure with the silhouette of the fu- sion reactor specially constructed and positioned on a steel column. Shortly after Angela Merkel spiritedly pressed the button, a bright light flickered on the monitors. These screens provided a glimpse inside the plasma vessel, where the brief fusion reaction the Chancellor had set in motion via the 2-megawatt pulse of microwave heat could be seen. Reaching a temperature of 80 million degrees and lasting a quarter of a second, the first hydrogen plasma in the system fully met the ex- Before the start: Project manager Thomas Klinger, Managing Director Sibylle Günter, pectations of scientists and engineers Helmholtz President Otmar Wiestler, Chancellor Angela Merkel, Max Planck President Martin at the Institute. Stratmann and Erwin Sellering, Minister President of Mecklenburg-Vorpommern (from left). New Network for Alumni Former Max Planck scientists join together Every year scientists from many different countries visit the sizes that: “Their skills are nevertheless important to the Max Max Planck Institutes and, conversely, many head off to all Planck Society as a whole, across institute boundaries.” parts of the world as alumni.
    [Show full text]