Doctoral students to study biology, mechanics connection under NIH grant

Doctoral students to study biology, mechanics connection under NIH grant

The Venus Flytrap, with its two leaf jaws that sense when an insect approaches and quickly snap shut, is one of nature’s clearest examples of biology and mechanics working together to sustain life. Four doctoral students at Washington University in St. Louis will have the opportunity to take a closer look at this intersection under a five-year, $921,040 grant.
Washington University’s Joseph Jez is one of 15 ‘million dollar professors’

Washington University’s Joseph Jez is one of 15 ‘million dollar professors’

Joseph Jez, PhD, co-director of the plant and microbial biosciences graduate program at Washington University in St. Louis, is one of 15 professors nationwide to receive a $1 million HHMI grant to bring the creativity he has shown in the lab to the undergraduate classroom. He plans to use the grant to establish a two-year program called the Biotech Explorers Pathway that will introduce entering students to both the science and business of biotechnology.

Slaying bacteria with their own weapons

A novel antibiotic delivery system would exploit small molecules called siderophores that bacteria secrete to scavenge for iron in their environments. Each bacterium has its own system of siderophores, which it pumps across its cell membrane before releasing the iron the siderophores hold. If an antibiotic were linked to one of these scavenger molecules, it would be converted into a tiny Trojan horse that would smuggle antibiotics inside a bacterium’s cell membrane.

Those with episodic amnesia are not ‘stuck in time,’ says philosopher Carl Craver

It has generally been assumed that people with episodic amnesia experience time much differently than those with more typical memory function. However, recent research by Washington University philosopher Carl F. Craver, PhD, disputes this type of claim. “There are sets of claims that sound empirical, like ‘These people are stuck in time.’ But if you ask, ‘Have you actually tested what they know about time?’ the answer is no.”
How repeatable is evolutionary history?

How repeatable is evolutionary history?

Some clover species have two forms, one of which releases cyanide to discourage nibbling by snails and insects and the other of which does not. A scientist at Washington University in St. Louis found that this “polymorphism” has evolved independently in six different species of clover, each time by the wholesale deletion of a gene. The clover species are in a sense predisposed to develop this trait, suggesting that evolution is not entirely free form but instead bumps up against constraints.
PARC wins renewed funding for photosynthetic research

PARC wins renewed funding for photosynthetic research

The Department of Energy has awarded the Photosynthetic Antenna Research Center (PARC) $14.4 million for continuing research on natural and bio-inspired systems for harvesting the sun’s energy. The center, which is hosted by Washington University in St. Louis, was one of 32 projects selected for funding from among more than 200 proposals and one of only 22 to receive second-round funding.
Target: Shared prosperity

Target: Shared prosperity

In “Economic Realities of the American Dream,” professors Steven Fazzari and Mark Rank examine the ­American Dream’s historical meaning, the ­traditional pathways to reach it, the current obstacles to achieving it and its viability in the future.
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