All articles by Linda Stewart – Page 20
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NewsWetlands do not need to be flooded to provide the greatest climate benefit
Contrary to expectations, wetlands do not need to be completely flooded to provide the greatest climate benefit. Instead, the water table should be below the soil surface and remain stable, according to a new study.
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NewsHow brick-building bacteria react to toxic chemical in Martian soil
Researchers investigated how bacteria that can mould Martian soil into brick-like structures fare in the presence of perchlorate, a toxic chlorine-containing chemical discovered in Martian soil. It slows down bacterial growth - but surprisingly leads to the formation of stronger bricks.
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NewsResearchers uncover the invisible worlds beneath our feet
An analysis of a natural aquifer revealed that despite their close spatial contact and possible interactions, the microorganisms in the water and on the rock form two strongly contrasting ecological communities.
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NewsHow bacteria learned to target numerous cell types, revealed
A new study shows how bacteria adapted a virus-derived injection system to recognize and attach to many different types of cells. By identifying thousands of rapidly evolving receptor-binding proteins, the researchers explain how these systems can be retargeted in nature by swapping the part that binds to cells.
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NewsSediment core yields evidence of an unexpected climate feedback in Antarctica
Researchers have concluded that global warming may lead to reduced uptake of carbon dioxide than at present in the Pacific sector of the Southern Ocean if the West Antarctic Ice Sheet, which is considered unstable, continues to shrink.
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NewsHow fire-loving fungi learned to eat charcoal
Wildfire causes most living things to flee or die, but some fungi thrive afterward, even feasting on charred remains. A new study is among the first to investigate how fungi that are barely detectable in the soil before a fire are able to proliferate wildly once an area has burned.
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NewsVaping zebrafish suggest E-cigarette exposure disrupts gut microbial networks and neurobehavior
Researchers hope to spark broader public discussion on the health risks of e-cigarettes and provide scientific evidence to support a reassessment of existing regulations.
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NewsNew dashboard helps predict and plan for disease outbreaks
When infectious diseases surge, response often comes down to whether communities can position the right people and supplies before case counts spike. Researchers have designed a new platform to translate academic disease forecasting into actionable guidance for decision-makers.
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NewsFrom sea to soil: Molecular changes suggest how algae evolved into plants
A research team used cryo-electron microscopy to look at the three-dimensional structure and function of Lhcp, a unique prasinophyte LHC, from the microscopic alga Ostreococcus tauri. The team compared their results to LHCII, which is found in terrestrial plants.
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NewsLaunch of clinical trial of investigative nasal spray medicine to prevent illnesses from respiratory viruses
A new clinical trial will test a new experimental intranasal spray designed to boost immune defenses and reduce illness from respiratory viruses.
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NewsGenetic system makes worker cells more resilient producers of nanostructures
Researchers report the development of a new genetic regulatory system to improve cell viability during the production of gas vesicles.
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NewsPediatric investigation study reports significant shifts in post-COVID respiratory infection trends in children
To explore how the pandemic changed respiratory infection trends in children, researchers examined data from 73,096 pediatric patients hospitalized with acute respiratory tract infections in two coastal cities in eastern China with similar climates.
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NewsResearchers enable microorganisms to build molecules with light
Researchers are continually looking for new ways to hack the cellular machinery of microbes to make useful products. A new study shows they can expand the biosynthetic capabilities of these microbes by using light to help access new types of chemical transformations.
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NewsSynthetic compound has the potential to treat malaria and prevent its transmission
Tests on cell cultures and rodents have shown that the new molecule acts on all three stages of the disease cycle, eliminating the parasite from human blood and liver and preventing transmission to mosquitoes.
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NewsSix years after COVID-19’s global alarm: Is the world better prepared for the next pandemic?
Six years ago, the Director-General of the World Health Organization sounded the highest global alarm available under international law at the time, declaring the outbreak of a new coronavirus disease. As we cross this six-year mark, WHO asks: Is the world better prepared for the next pandemic?
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NewsStudy suggests far fewer cervical cancer screenings are needed for HPV‑vaccinated women
In a modeling study of women vaccinated against human papillomavirus (HPV), researchers found that cervical cancer screening could be done far less often than current recommendations without compromising health benefits.
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NewsDanish pediatrician warns Denmark’s childhood vaccine schedule is not one the U.S. can copy
Danish pediatrician Lone Graff Stensballe DMSc, PhD warns that the U.S. should not replicate Denmark’s childhood vaccine strategy due to major social and health disparities between the two countries.
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NewsOne of Earth’s most abundant organisms is surprisingly fragile
A group of ocean bacteria long considered perfectly adapted to life in nutrient-poor waters may be more vulnerable to environmental change than scientists realized. The bacteria, known as SAR11, dominate surface seawater worldwide and can make up as much as 40% of marine bacterial cells.
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NewsResearchers uncover hidden toxin risks during nutrient-starved algal blooms
Researchers have shown that extended nutrient deprivation can significantly increase toxin content per cell in the benthic dinoflagellate Prorocentrum lima, even when cell numbers remain relatively stable. Toxin risk may increase quietly under nutrient-poor conditions without obvious bloom expansion.
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NewsNew research finds crosstalk inside cells helps pathogens evade drugs
Biologists have uncovered a new mode of communication inside cells that helps bacterial pathogens learn how to evade drugs. Their findings describe how these mechanisms drive antimicrobial resistance in Listeria monocytogenes, the foodborne bacteria that causes listeriosis.