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From the College of Natural Sciences
Scientists Discover Why Some Bacteria Turn Bad

Scientists Discover Why Some Bacteria Turn Bad

Enterotoxigenic E. coli (ETEC) bacteria approach intestinal epithelial cells during human infection. When in close proximity to the host epithelium ETEC senses oxygen seeping (blue) from intestinal epithelial cells to increase expression of adhesins and secreted toxins (magenta). Image Credit: Brad Gilleland

Every year, millions of people have vacations and business trips ruined when they succumb to "traveler's diarrhea" during their journeys. A major cause of traveler's diarrhea is bacteria called Enterotoxigenic E. coli, or ETEC. A joint effort between scientists at the University of Georgia and the University of Texas at Austin has discovered what triggers ETEC to produce dangerous toxins in the body. They are using this information in an effort to develop a preventive vaccine for travelers.

Fighting Hepatitis C Virus, Using Clues from What Killed Bevo XIV

Fighting Hepatitis C Virus, Using Clues from What Killed Bevo XIV

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And other adventures in animal viruses teaching us about human disease.

Promise of New Antibiotics Lies with Shackling Tiny Toxic Tetherballs to Bacteria

Promise of New Antibiotics Lies with Shackling Tiny Toxic Tetherballs to Bacteria

Biologists at The University of Texas at Austin have developed a method for rapidly screening hundreds of thousands of potential drugs for fighting infections, an innovation that holds promise for combating the growing scourge of antibiotic-resistant bacteria. The method involves engineering bacteria to produce and test molecules that are potentially toxic to themselves.

Gut Microbiome Influenced Heavily by Social Circles in Lemurs, UT Study Says

Gut Microbiome Influenced Heavily by Social Circles in Lemurs, UT Study Says

Social group membership is the most important factor influencing the composition of a lemur's gut microbiome, according to research at The University of Texas at Austin.

UT Austin and Texas A&M Scientists Seek to Turn Plant Pests into Plant Doctors

UT Austin and Texas A&M Scientists Seek to Turn Plant Pests into Plant Doctors

Oleander aphid. Credit: Alex Wild

Scientists from The University of Texas at Austin and Texas A&M University are investigating an innovative new way to protect crops from pathogens, thanks to a four-year cooperative agreement worth up to $5 million awarded through the Defense Advanced Research Projects Agency Insect Allies Program.

Scientist Battling Invincible Microbes Takes Fight to the Silver Screen

Scientist Battling Invincible Microbes Takes Fight to the Silver Screen

Bryan Davies is an assistant professor in molecular biosciences and biotechnologist at the University of Texas at Austin, leading research into how to combat antibiotic-resistant bacteria and develop new antimicrobials to fight infection.

Project Explores Fate of Coral Reefs and Related Life

Project Explores Fate of Coral Reefs and Related Life

An international team of coral experts, including Misha Matz, an associate professor of integrative biology at The University of Texas at Austin, have published a set of urgent research recommendations, related to the ability of coral to respond to rapid environmental change caused by climate change.

Three Alumni to be Inducted into Hall of Honor

Three Alumni to be Inducted into Hall of Honor

Three world-changing alumni of the College of Natural Sciences have been selected for induction into the college's 2017 Hall of Honor. Two distinguished alumni, Gail Dianne Lewis and Alan Stern, have been excelling in their chosen fields for decades. Meanwhile, emerging leader Franziska Roesner has only just begun to make her mark. All are building a better world.

Social Bees Have Kept Their Gut Microbes for 80 Million Years

Social Bees Have Kept Their Gut Microbes for 80 Million Years

About 80 million years ago, a group of bees began exhibiting social behavior, which includes raising young together, sharing food resources and defending their colony. Today, their descendants—honey bees, stingless bees and bumble bees—carry stowaways from their ancient ancestors: five species of gut bacteria that have evolved along with the host bees.

Genetic Signatures Reveal Environment Where Bacteria Evolved

Genetic Signatures Reveal Environment Where Bacteria Evolved

Just as the fossil record reveals clues about the conditions in which prehistoric animals and plants once lived, newly discovered genetic signatures in bacterial evolution may one day allow hospitals, doctors and scientists to know more about the environment where a bacterial infection originated.