Science & Technology

When it comes to plant growth and development, one hormone is responsible for it all: auxin. New Washington University in St. Louis research has uncovered a mechanism by which it can affect a plant in a myriad of ways.

Shumeng Jiang, a doctoral student in mechanical engineering in the McKelvey School of Engineering at Washington University in St. Louis, was part of a team that uncovered previously unknown cell behaviors.

The Trump Administration’s proposed overhaul of the landmark Endangered Species Act will “hasten the extinction of countless species,” says Jonathan Losos, director of the Living Earth Collaborative at Washington University in St. Louis and an international biodiversity expert.

Of all the reasons why researchers would prefer more robust monitoring of pollutants in the atmosphere, one stands out: Having this basic information is an indication of progress in the realm of environmental science. A McKelvey School of Engineering scientist outlines the extent of the gap between what researchers know and don’t know.

Research from Washington University in St. Louis finds that mutations of a gene implicated in long QT syndrome in humans may trigger seizures because of their direct effects on certain classes of neurons in the brain — independent from what the genetic mutations do to heart function. The new work from Arts & Sciences was conducted with fruit flies and is published August 8 in PLOS Genetics.

A long-term study of western gorillas in Gabon has revealed an unexpected behavior: they use their teeth to crack open and eat nuts. New research by Adam van Casteren, lecturer in biological anthropology in Arts & Sciences, may have important implications for the way researchers predict the diet of human ancestors based on the shape of their teeth.

Researchers from Arts & Sciences have solved the X-ray crystal structure of the enzyme that makes obafluorin — a broad spectrum antibiotic agent made by a fluorescent strain of soil bacteria. This new class of antibiotics might provide a powerful antidote to the growing scourge of antibiotic resistance.

Fuzhong Zhang, associate professor of energy, environmental & chemical engineering in the McKelvey School of Engineering, and members of his lab have developed a bottom-up approach to build 2D nanostructures, essentially starting from scratch.

A team of engineers at Washington University in St. Louis has found what they believe is a more stable, less toxic semiconductor for solar applications, using a novel double mineral discovered through data analytics and quantum-mechanical calculations.

Biologist Lucia Strader in Arts & Sciences discovered a cellular transporter that links two of the most powerful hormones in plant development — auxin and cytokinin — and shows how they regulate root initiation and progression. Understanding why and how plants make different types of root architectures can help develop plants that better cope with distinct soil conditions and environments.