Bacteria and the viruses that infect themβknown as phagesβcoexist in soils, oceans and living organisms. Scientists have long thought this coexistence reflects a microscopic version of an evolutionary arms race: As parasites and hosts continually adapt to one another, both evolve ways to survive. But a joint study by researchers at the University of Maryland and the University of Exeter shows different pathways to coexistence.
Bacteria and the viruses that infect themβknown as phagesβcoexist in soils, oceans and living organisms. Scientists have long thought this coexistence reflects a microscopic version of an evolutionary arms race: As parasites and hosts continually adapt to one another, both evolve ways to survive. But a joint study by researchers at the University of Maryland and the University of Exeter shows different pathways to coexistence.
Whenever a cell divides, it has to split its chromosomes perfectly between two daughter cells, and even a single mistake can be disastrous. Now, researchers from Japan have found that one of the key structures that makes this possible takes a surprising shape: a hollow sphere.
Biofilms are complex microbial communities that adhere to a surface and encase themselves in a viscous matrix they produce. This structure protects bacteria from antibiotics and the immune system far more effectively than if they lived in a free-floating state, making biofilms one of the most common causes of hard-to-treat chronic infectionsβsuch as respiratory infections in people with cystic fibrosis and chronic obstructive pulmonary disease (COPD), chronic wounds, or infections associated with catheters and prosthetic devices. Added to this is the global rise in antibiotic resistance, which makes it increasingly urgent to have tools capable of predicting which treatment will work in each case.
The ocean's aphotic zoneβthe dark, high-pressure region below the surface, where sunlight cannot reachβis home to a vast wealth of microbial life. Yet scientists know relatively little about the genetic makeup, growth and function of many of these enigmatic organisms.
The ocean's aphotic zoneβthe dark, high-pressure region below the surface, where sunlight cannot reachβis home to a vast wealth of microbial life. Yet scientists know relatively little about the genetic makeup, growth and function of many of these enigmatic organisms.
Researchers at Queen Mary University of London are closer to understanding tendinopathy, a common condition that can cause persistent pain and impaired movement in people and many animals.
The mammalian gut microbiome teems with a delicate balance of bacteria and the viruses that keep them in check, called bacteriophages, or phages. Each bacterial species usually has its own set of phage partners.
The mammalian gut microbiome teems with a delicate balance of bacteria and the viruses that keep them in check, called bacteriophages, or phages. Each bacterial species usually has its own set of phage partners.
Even highly antibiotic-resistant bacteria become more vulnerable when their cell wall transport system is disrupted, according to a new study from UmeΓ₯ University. The discovery reveals a previously overlooked weakness that could help researchers develop new strategies to combat antibiotic resistance.
Even highly antibiotic-resistant bacteria become more vulnerable when their cell wall transport system is disrupted, according to a new study from UmeΓ₯ University. The discovery reveals a previously overlooked weakness that could help researchers develop new strategies to combat antibiotic resistance.
Research underway in the lab of Rebecca Alexander, a professor in Wake Forest University's Department of Chemistry, is shedding light on an unusual human bacterium, Mycoplasma penetrans. Alexander's work to understand how and why this unique pathogen acts as it does could one day lead to new classes of drugs that better target illnesses associated with this particular pathogen, as well as others that act similarly.
During the COVID-19 pandemic, we wore masks and kept 2 meters (6.6 feet) apart in an effort to reduce the spread of the tiny droplets we release into the air with every breath, conversation or cough. The main goal was to reduce the number of virus particlesβknown as virionsβto which we were exposed. For each virus, a person must be exposed to a minimum infectious dose to develop disease, and in many cases, the larger the dose, the more severe the illness.
It can't be heard, but different parts of the human body are in constant conversation, communicating to keep the entire system running efficiently. For biologists, being able to listen in on this discussion is a long-sought-after goal. Over the years, researchers have caught snippets of these exchanges, but the complete dialogue has remained out of reach.
It can't be heard, but different parts of the human body are in constant conversation, communicating to keep the entire system running efficiently. For biologists, being able to listen in on this discussion is a long-sought-after goal. Over the years, researchers have caught snippets of these exchanges, but the complete dialogue has remained out of reach.
New research from Indiana University has uncovered a previously unknown vulnerability in how bacteria build the whip-like tails they use to move. The researchers found that building these tails can put stress on the protective wall surrounding a bacterial cell and uncovered systems bacteria use to keep that stress from becoming destructive.
A new study has demonstrated that regional microbial imprints can remain detectable under commercial winemaking conditions. The research, appearing in Applied and Environmental Microbiology, shows that inoculated fermentations do not "override" native microbial diversity and that vineyard management and environmental conditions affect wine quality. The study helps explain why wines from different regions taste distinct even when made with similar techniques and supports regional flavors and branding.
A book sits atop a table. Although it's closed, its title, "Encyclopedia of Human Tissue," promises untold secrets. Perhaps with this book, you can learn about different cell types and what they look like under normal conditions or conditions of disease. Maybe you can learn how gene expression differs in the cells of younger and older people, or whether different patients' cells respond differently to the same treatments.
A genetically engineered bacterium can rapidly break down one of Earth's most abundant minerals, opening a promising new pathway for simultaneously removing carbon dioxide from the atmosphere and recovering critical elements used in electric vehicle batteries, according to new Cornell research.