By Joseph R. Mendelson III, Karen R. Lips, Ronald W. Gagliardo, George B. Rabb, James P. Collins, James E. Diffendorfer, Peter Daszak, Roberto Ibáñez D., Kevin C. Zippel, Dwight P. Lawson, Kevin M. Wright, Simon N. Stuart, Claude Gascon, Hélio R. da Silva, Patricia A. Burrowes, Rafael L. Joglar, Enrique La Marca, Stefan Lötters, Louis H. du Preez, Ché Weldon, Alex Hyatt, José Vicente Rodriguez-Mahecha, Susan Hunt, Helen Robertson, Brad Lock, Christopher J. Raxworthy, Darrel R. Frost, Robert C. Lacy, Ross A. Alford, Jonathan A. Campbell, Gabriela Parra-Olea, Federico Bolaños, José Joaquin Calvo Domingo, Tim Halliday, James B. Murphy, Marvalee H. Wake, Luis A. Coloma, Sergius L. Kuzmin, Mark Stanley Price, Kim M. Howell, Michael Lau, Rohan Pethiyagoda, Michelle Boone, Michael J. Lannoo, Andrew R. Blaustein, Andy Dobson, Richard A. Griffiths, Martha L. Crump, David B. Wake, Edmund D. Brodie Jr.
By Oleg G. Shpyrko, Reinhard Streitel, Venkatachalapathy S. K. Balagurusamy, Alexei Y. Grigoriev, Moshe Deutsch, Benjamin M. Ocko, Mati Meron, Binhua Lin, Peter S. Pershan
By Sheshanath Bhosale, Adam L. Sisson, Pinaki Talukdar, Alexandre Fürstenberg, Natalie Banerji, Eric Vauthey, Guillaume Bollot, Jiri Mareda, Cornelia Röger, Frank Würthner, Naomi Sakai, Stefan Matile
By Matthew J. Trifilo, Toshitaka Yajima, Yusu Gu, Nancy Dalton, Kirk L. Peterson, Richard E. Race, Kimberly Meade-White, John L. Portis, Eliezer Masliah, Kirk U. Knowlton, Bruce Chesebro, Michael B. A. Oldstone
By Richard Condit, Peter Ashton, Sarayudh Bunyavejchewin, H. S. Dattaraja, Stuart Davies, Shameema Esufali, Corneille Ewango, Robin Foster, I. A. U. N. Gunatilleke, C. V. S. Gunatilleke, Pamela Hall, Kyle E. Harms, Terese Hart, Consuelo Hernandez, Stephen Hubbell, Akira Itoh, Somboon Kiratiprayoon, James LaFrankie, Suzanne Loo de Lao, Jean-Remy Makana, Md. Nur Supardi Noor, Abdul Rahman Kassim, Sabrina Russo, Raman Sukumar, Cristián Samper, Hebbalalu S. Suresh, Sylvester Tan, Sean Thomas, Renato Valencia, Martha Vallejo, Gorky Villa, Tommaso Zillio
COVER Photobleaching in an Arabidopsis plant, the result of virus-induced gene silencing of phytoene desaturase (PDS), an enzyme involved in carotenoid biosynthesis. The plant was infected with a recombinant virus containing a fragment of the Arabidopsis PDS gene, such that the RNA-silencing immune response was programmed not only against the virus but also against the host gene. See page 68. Image: A. Deleris and O. Voinnet
