All Bacteria articles – Page 3
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NewsLab tackles antibiotic resistance across multiple fronts in new trio of studies
To defeat multidrug-resistant superbugs, bacterial defenses must be confronted wherever they may emerge, from basic genetic mutations in a laboratory, to complex real-world transmission in hospital rooms. A new trio of studies demonstrates how an integrated approach might yet expose and overcome these diverse survival mechanisms.
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NewsKey regulator helps seafood-associated bacterium balance iron and oxidative stress
Bacteria need iron, but bioavailable iron is often scarce, and too much can fuel chemical reactions that damage cells. Many Gram-negative bacteria balance iron through ferric uptake regulator (Fur), a metal-responsive protein that controls iron-related genes. Fur’s role in V. parahaemolyticus, however, had not been clearly defined.
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NewsCan AI find drugs to fight infection?
Researchers have used artificial intelligence (AI) to identify approved drugs that may be effective against Streptococcus pneumoniae. Using a dataset of molecules shown to be active against S. pneumoniae and a larger dataset of molecules inactive against another drug-resistant bacterium, the scientists trained three different learning algorithms.
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NewsBreakthrough optimization of chlamydospore fermentation for Cladophialophora guangxiense HX2
The dark septate endophyte Cladophialophora guangxiense HX2 exhibits excellent control efficacy against tomato bacterial wilt but industrial production of its chlamydospores has been challenging. Researchers have optimized the liquid fermentation process using chlamydospore yield of strain HX2 as the key response indicator.
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NewsCan probiotics help T cells fight solid tumors more effectively?
Transferred T cells often have difficulty reaching tumors and overcoming the strongly immunosuppressive environment surrounding cancer cells. Researchers have combined therapeutic T cells with engineered probiotics, physically attaching the bacteria to the surface of T cells to create a hybrid system called T-FOLactis.
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NewsBacteria in airway shape air pollution health risk
A study suggests that the subtype of the bacterium Streptococcus pneumoniae, together with air pollution exposure impacts the rate and timing of invasive disease — with some strains linked to immediate infection after air pollution exposure, and some taking several weeks.
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NewsGut bacterial enzyme worsens colitis by switching off a protective intestinal signal
Microbiome research often focuses on which microbes are present in the gut and what small molecules they produce. But gut bacteria also make enzymes that can act directly on molecules produced by the host. Researchers report that one such bacterial enzyme can weaken a protective intestinal signal and aggravate colitis in a preclinical model.
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NewsDogs and cats carry antibiotic-resistant bacteria also found in people, study finds
Pets may carry strains of Klebsiella pneumoniae — a potentially serious bacterium that can cause infections that are also found in humans. The study is the first to map the global genetic makeup of K.pneumoniae carried by domestic dogs and cats, and to compare it on a large scale with the same bacteria in people.
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NewsShapeshifting plant roots rely on a balance of anatomy, metabolism, and microbes to maximize survival
Scientists have identified the mechanisms that allow plants to change their root anatomy to maximise survival when nutrients are scarce. The findings could pave the way for developing new ways to improve beneficial plant-microbe interactions in agriculture.
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NewsScientists break down shoe foam by genetically tweaking a microbe found in compost
Researchers have developed a new kind of enzyme based on a bacterium found in compost that can degrade the polyurethane material in shoe foams. The results could one day help recycle plastic waste from shoes, mattresses, kitchen sponges, and more.
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NewsResearchers find plastic-degrading enzymes in nature
Danish researchers have found 12 new polyurethane- and nylon-degrading enzymes by bioprospecting bacteria at the largest scale and broadest range of environments so far: in a compost heap, in a landfill in Kenya, a tropical zoo and in guts of larvae.
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NewsUnder pressure: How a deep-sea protein adapts to an extreme environment
Researchers have uncovered a molecular strategy that enables a deep-sea protein to remain stable under extreme pressure. As pressure increases, the protein assembles into groups of three, called a trimeric structure, and stabilizes itself through a process known as oligomerization-mediated structural stabilization.
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NewsThe usefulness of labelled white blood cells in diagnosing necrotizing external otitis
Using radiopharmaceutical technology, researchers can reliably and conveniently diagnose and monitor necrotizing external otitis, a rare disease of the skull base.
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NewsDangerous strings of bacteria use flow to spread colonies
Researchers have identified how certain dangerous bacteria are spread. They studied chain-like adherence pattern (CLAP) varieties of Shiga toxin-producing E. coli (STEC), finding that single bacteria attach to a surface and elongate before dividing, producing chains without ever separating.
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NewsResearchers discover first PLP-dependent enzyme that influences bacterial protein production
Researchers discovered aminovaleramididine synthetase (AvaS), the first pyridoxal phosphate (PLP)-dependent enzyme involved in tRNA modification, expanding scientific understanding of how RNA shapes the reading of genetic information. The discovery reveals a previously unknown mechanism that bacteria use to regulate protein production.
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NewsThese bacteria can change their diet to survive inside the body
The team have found that Staphylococcus aureus can adjust its diet depending on what sources remain available. The bacterium can adjust its inner workings in response to any one of a number of different sulfur-containing compounds — like cysteine, glutathione or thiosulfate.
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NewsAMI welcomes new member to its Board of Trustees
Applied Microbiology International has welcomed Professor Les Baillie as the latest member of its Board of Trustees. We also bid a fond farewell and thank you to Professor Diane Purchase who is leaving the Board.
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NewsC. diff coordinates threat response to survive in gut
Researchers have discovered a unique system C. diff uses to simultaneously sense and respond to two different threats: host-mediated nutrient deprivation and a microbiota-produced antibiotic compound, suggesting new therapeutic options for preventing and treating C. diff infections.
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NewsEngineering bacterial surfaces with glucan nanofilms creates a potent vaccine platform against invasive fungal infections
A research team has developed a synthetic bacterium-based vaccine platform that uses engineered bacterial surfaces to assemble glucan nanofilms for enhanced antifungal immunity against pathogens such as Candida albicans.
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NewsFusobacterium nucleatum drives immunosuppression and metastasis in TNBC
A new study identifies Fusobacterium nucleatum, a Gram-negative anaerobic bacterium associated with several cancers, as a key driver of tryptophan metabolic reprogramming, immunosuppression and lung metastasis in triple-negative breast cancer.