Although it lived roughly 65 million years before the earliest known occurrence of figs, the fossil wasps ovipositor closely resembles those of todays fig wasps.
A 115-million-year-old fossilized wasp from northeast Brazil presents a baffling puzzle to researchers. The wasp’s ovipositor, the organ through which it lays its eggs, looks a lot like those of present-day wasps that lay their eggs in figs. The problem, researchers say, is that figs arose about 65 million years after this wasp was alive.
Researchers grew Miscanthus x giganteus (the taller grass) and switchgrass in side-by-side field trials in seven locations in Illinois.
The first long-term U.S. field trials of Miscanthus x giganteus, a towering perennial grass used in bioenergy production, reveal that its exceptional yields, though reduced somewhat after five years of growth, are still more than twice those of switchgrass (Panicum virgatum), another perennial grass used as a bioenergy feedstock. Miscanthus grown in Illinois also outperforms even the high yields found in earlier studies of the crop in Europe, the researchers found.
Postdoctoral researcher Mahmoud Moradi, left, and biochemistry professor Emad Tajkhorshid discovered how a transporter protein changes its shape to shuttle other molecules across the cell membrane.
Researchers have tried for decades to understand the undulations and gyrations that allow transport proteins to shuttle molecules from one side of a cell membrane to the other. Now scientists report that they have found a way to penetrate the mystery. They have worked out every step in the molecular dance that enables one such transporter to do its job.
rofessor and interim head of pathobiology Mark Kuhlenschmidt is part of a team that will develop a new system to study a parasite, Cryptosporidium, which causes a diarrheal disease in humans.
The University of Illinois is a Grand Challenges Explorations winner, an initiative funded by the Bill & Melinda Gates Foundation. Daniel L. Rock, a professor of pathobiology, and Mark S. Kuhlenschmidt, a professor and the interim head of pathobiology, will pursue innovative global health and development research projects.
Anthropology professor Ripan Malhi works with Native Americans to collect and analyze their DNA and that of their ancestors.
University of Illinois anthropology professor Ripan Malhi looks to DNA to tell the story of how ancient humans first came to the Americas and what happened to them once they were here.
Edward Maibach, a professor at George Mason University, will give a lecture in a series that honors Charles David Keeling, an analytical chemist at the University of Illinois and a member of the National Academy of Sciences.