| | This journal provides immediate access to some articles. In This Issue Small RNA on the Move Nancy A. Eckardt PMCID: PMC519186 Cold Tolerance, SFR2, and the Legacy of Gary Warren Cathie Martin and Jonathan Jones PMCID: PMC519187 Research Articles Length Regulation and Dynamics of Individual Telomere Tracts in Wild-Type Arabidopsis Eugene V. Shakirov and Dorothy E. Shippen PMCID: PMC519188 Mre11 Deficiency in Arabidopsis Is Associated with Chromosomal Instability in Somatic Cells and Spo11-Dependent Genome Fragmentation during Meiosis Jasna Puizina, Jiri Siroky, Petr Mokros, Dieter Schweizer, and Karel Riha PMCID: PMC519189 A Systemic Small RNA Signaling System in Plants Byung-Chun Yoo, Friedrich Kragler, Erika Varkonyi-Gasic, Valerie Haywood, Sarah Archer-Evans, Young Moo Lee, Tony J. Lough, and William J. Lucas PMCID: PMC519190 Novel and Stress-Regulated MicroRNAs and Other Small RNAs from Arabidopsis Ramanjulu Sunkar and Jian-Kang Zhu PMCID: PMC519194 The xipotl Mutant of Arabidopsis Reveals a Critical Role for Phospholipid Metabolism in Root System Development and Epidermal Cell Integrity Alfredo Cruz-Ramírez, José López-Bucio, Gabriel Ramírez-Pimentel, Andrés Zurita-Silva, Lenin Sánchez-Calderon, Enrique Ramírez-Chávez, Emmanuel González-Ortega, and Luis Herrera-Estrella PMCID: PMC519195 The Arabidopsis Microtubule-Associated Protein AtMAP65-1: Molecular Analysis of Its Microtubule Bundling Activity Andrei P. Smertenko, Hsin-Yu Chang, Vera Wagner, Despina Kaloriti, Stepan Fenyk, Seiji Sonobe, Clive Lloyd, Marie-Theres Hauser, and Patrick J. Hussey PMCID: PMC519196 Arabidopsis thaliana GLN2-Encoded Glutamine Synthetase Is Dual Targeted to Leaf Mitochondria and Chloroplasts Masakazu Taira, Ulrika Valtersson, Brad Burkhardt, and Robert A. Ludwig PMCID: PMC519197 Functional Specialization amongst the Arabidopsis Toc159 Family of Chloroplast Protein Import Receptors Sybille Kubis, Ramesh Patel, Jonathan Combe, Jocelyn Bédard, Sabina Kovacheva, Kathryn Lilley, Alexander Biehl, Dario Leister, Gabino Ríos, Csaba Koncz, and Paul Jarvis PMCID: PMC519198 Import Pathways of Chloroplast Interior Proteins and the Outer-Membrane Protein OEP14 Converge at Toc75 Shih-Long Tu, Lih-Jen Chen, Matthew D. Smith, Yi-shin Su, Danny J. Schnell, and Hsou-min Li PMCID: PMC519199 Genome-Wide Analysis of Arabidopsis Pentatricopeptide Repeat Proteins Reveals Their Essential Role in Organelle Biogenesis Claire Lurin, Charles Andrés, Sébastien Aubourg, Mohammed Bellaoui, Frédérique Bitton, Clémence Bruyère, Michel Caboche, Cédrig Debast, José Gualberto, Beate Hoffmann, Alain Lecharny, Monique Le Ret, Marie-Laure Martin-Magniette, Hakim Mireau, Nemo Peeters, Jean-Pierre Renou, Boris Szurek, Ludivine Taconnat, and Ian Small PMCID: PMC519200 Functional Analysis of a 450–Amino Acid N-Terminal Fragment of Phytochrome B in Arabidopsis Yoshito Oka, Tomonao Matsushita, Nobuyoshi Mochizuki, Tomomi Suzuki, Satoru Tokutomi, and Akira Nagatani PMCID: PMC519201 The Oxylipin Signal Jasmonic Acid Is Activated by an Enzyme That Conjugates It to Isoleucine in Arabidopsis Paul E. Staswick and Iskender Tiryaki PMCID: PMC519202 Global Transcription Profiling Reveals Multiple Sugar Signal Transduction Mechanisms in Arabidopsis John Price, Ashverya Laxmi, Steven K. St. Martin, and Jyan-Chyun Jang PMCID: PMC519203 Hydrogen Photoproduction Is Attenuated by Disruption of an Isoamylase Gene in Chlamydomonas reinhardtii Matthew C. Posewitz, Sharon L. Smolinski, Saradadevi Kanakagiri, Anastasios Melis, Michael Seibert, and Maria L. Ghirardi PMCID: PMC519204 Homologs of Plant PsbP and PsbQ Proteins Are Necessary for Regulation of Photosystem II Activity in the Cyanobacterium Synechocystis 6803 Leeann E. Thornton, Hiroshi Ohkawa, Johnna L. Roose, Yasuhiro Kashino, Nir Keren, and Himadri B. Pakrasi PMCID: PMC519205 Increased Glutathione Biosynthesis Plays a Role in Nickel Tolerance in Thlaspi Nickel Hyperaccumulators John L. Freeman, Michael W. Persans, Ken Nieman, Carrie Albrecht, Wendy Peer, Ingrid J. Pickering, and David E. Salt PMCID: PMC519206 The SENSITIVE TO FREEZING2 Gene, Required for Freezing Tolerance in Arabidopsis thaliana, Encodes a β-Glucosidase Glenn Thorlby, Nicolas Fourrier, and Gareth Warren PMCID: PMC519207 Tissue-Specific Expression of Head-to-Tail Cyclized Miniproteins in Violaceae and Structure Determination of the Root Cyclotide Viola hederacea root cyclotide1 Manuela Trabi and David J. Craik PMCID: PMC519208 VASCULAR ASSOCIATED DEATH1, a Novel GRAM Domain–Containing Protein, Is a Regulator of Cell Death and Defense Responses in Vascular Tissues Séverine Lorrain, Baiqing Lin, Marie Christine Auriac, Thomas Kroj, Patrick Saindrenan, Michel Nicole, Claudine Balagué, and Dominique Roby PMCID: PMC519209 The Ustilago maydis a2 Mating-Type Locus Genes lga2 and rga2 Compromise Pathogenicity in the Absence of the Mitochondrial p32 Family Protein Mrb1 Miriam Bortfeld, Kathrin Auffarth, Regine Kahmann, and Christoph W. Basse PMCID: PMC519210 |
