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Categories: Biology: Microbiology, Space: General

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Biology: Microbiology
Published

Scientists get fungi to spill their secrets      (via sciencedaily.com) 

Using multiplex base-editing, an approach that simultaneously modifies multiple sites in fungal genomes, chemical and biomolecular engineers coax fungi into revealing their best-kept secrets, ramping up the pace of new drug discovery.

Biology: Microbiology
Published

'Jumping genes' help fungus kill salamanders      (via sciencedaily.com) 

A fungus that infects salamanders contains multiple copies of the same 'jumping genes', scientists have discovered.

Biology: Microbiology Ecology: Endangered Species Ecology: Invasive Species
Published

Ethereal color variant of mysterious plant is actually a new species      (via sciencedaily.com) 

It was thought that there was only one species of the ghost-like Monotropastrum humile plant found in woodlands across East and Southeast Asia. In a major new discovery, botanists reveal that a rosy pink colored variant is actually a distinct new species, shaking up our understanding of this unusual-looking genus of plants. This 20-year study emphasizes the importance of combining various analytical methods to fully understand and protect biodiversity.

Biology: Microbiology
Published

Two fungi work together to kill fig trees, study finds      (via sciencedaily.com) 

Research finds that fungus carried by ambrosia beetles works together with a second fungus to cause fig wilting disease.

Biology: Microbiology
Published

A deep red, cranberry-tinted lipstick that's also antimicrobial      (via sciencedaily.com) 

Lipstick can be a confidence booster, enhance a costume and keep lips from chapping. But sharing a tube with a friend or family member can also spread infections. To develop a version with antimicrobial properties, researchers have added cranberry extract to the formulation. Their deep red cream quickly inactivates disease-causing viruses, bacteria and a fungus that come in contact with it.

Biology: Microbiology
Published

Harmful fungal toxins in wheat: a growing threat      (via sciencedaily.com) 

Wheat -- the most widely cultivated crop in the world -- is under growing attack from harmful toxins. Across Europe, almost half of wheat crops are impacted by the fungal infection that gives rise to these toxins, according to a new study.

Anthropology: Cultures Biology: Microbiology Paleontology: Climate Paleontology: Early Mammals and Birds Paleontology: General
Published

Increasing forest cover in the Eifel region 11,000 years ago resulted in the local loss of megafauna      (via sciencedaily.com) 

Sediment cores obtained from Eifel maar sites provide insight into the presence of large Ice Age mammals in Central Europe over the past 60,000 years: Overkill hypothesis not confirmed. Herds of megafauna, such as mammoth and bison, have roamed the prehistoric plains in what is today's Central Europe for several tens of thousands of years. As woodland expanded at the end of the last Ice Age, the numbers of these animals declined and by roughly 11,000 years ago, they had completely vanished from this region. Thus, the growth of forests was the main factor that determined the extinction of such megafauna in Central Europe.

Biology: Microbiology
Published

Understanding the cryptic role fungi play in ecosystems      (via sciencedaily.com) 

It is estimated that there are approximately 3 to 13 million fungal species on Earth, many of which are microscopic in size. They live in a range of environments such as in soils, inside the tissues of leaves in rainforests, and in deep oceans. Understanding how fungi move across a range of spatial scales is important to understanding ecosystems and has implications for agriculture and human health, according to a new review.

Biology: Microbiology
Published

Accelerating pathogen identification in infants and children with bloodstream infections      (via sciencedaily.com) 

A collaborative team has re-engineered the process of microbial pathogen identification in blood samples from pediatric sepsis patients using broad-spectrum pathogen capture technology. The advance enables accurate pathogen detection with a combination of unprecedented sensitivity and speed, and could significantly improve clinical outcomes for pediatric and older patients with bloodstream infections (BSIs) and sepsis.

Biology: Microbiology
Published

Fungi in sink drains act as 'reservoirs for mold'      (via sciencedaily.com) 

Sinks and P-traps are home to a surprising number of fungal organisms.

Biology: Microbiology
Published

Antibiotics' effect on the mycobiome varies from person to person      (via sciencedaily.com) 

Antibiotic treatment disrupts the balance of beneficial and harmful bacteria in a person's gut. That disruption can lead to the overgrowth of fungal species in the gut mycobiota, including the common intestinal yeast Candida albicans. However, researchers only have a limited understanding of the underlying mechanisms. Researchers now report on how treatment with a common beta-lactam antibiotic led to significant changes in C. albicans in patients.

Biology: Microbiology Ecology: Trees Environmental: Ecosystems
Published

Forests benefit from tree species variety and genetic diversity      (via sciencedaily.com)     Original source 

Reforestation projects should include a variety of tree species and ensure genetic diversity within each species to maximize new forests' health and productivity.

Biology: Microbiology Ecology: Trees
Published

Genome studies uncover a new branch in fungal evolution      (via sciencedaily.com)     Original source 

About 600 seemingly disparate fungi that had resisted categorization have been shown to have a common ancestor, according to a a research team that used genome sequencing to give these peculiar creatures a new classification home.

Biology: Microbiology
Published

Physicians urged to consider fungal infections as possible cause for lung inflammation      (via sciencedaily.com) 

Infectious diseases experts warn of the rising threat and apparent spread of disease-causing fungi outside their traditional hot spots. Fungal lung infections are commonly misdiagnosed, leading to delays in treatment and increase in antimicrobial resistance in the community.

Biology: Microbiology
Published

A Tale of Terroir: Porcini mushrooms have evolved with a preference to local adaptation      (via sciencedaily.com) 

A genetic survey of porcini mushrooms across the Northern Hemisphere found that these delicious fungi evolved in surprising ways -- contrary to the expectations of many who think that geographic isolation would be the primary driver for species diversity. In fact, there are regions in the world where porcini maintain their genetic distinctiveness in local ecological niches, even if they are not isolated geographically from other genetic lineages.

Biology: Microbiology
Published

How a common fungus eliminates toxic mercury from soil and water      (via sciencedaily.com) 

Researchers found that the fungus Metarhizium robertsii removes mercury from the soil around plant roots, and from fresh and saltwater. The researchers also genetically engineered the fungus to amplify its mercury detoxifying effects. This new work suggests Metarhizium could provide an inexpensive and efficient way to protect crops grown in polluted areas and remediate mercury-laden waterways.

Biology: Microbiology
Published

Lung infections caused by soil fungi are a problem nationwide      (via sciencedaily.com) 

Researchers have discovered that the three main kinds of soil fungi that cause lung infections have all expanded their ranges in recent decades. Reliance on outdated maps could be causing delayed or missed diagnoses.

Biology: Microbiology
Published

Starved yeast poisons clones      (via sciencedaily.com) 

Yeast is not the simple single-celled microorganism we once thought, but a competitive killer. When starved of glucose, yeast releases a toxin that will poison other microorganisms that have entered its surrounding habitat, even its own clones. This venomous phenomenon was previously unknown and contributes to our understanding of unicellular microorganism behavior, the evolution of unicellular to multicellular organisms, as well as having potentially useful applications for the food industry.

Biology: Microbiology
Published

Defect in cellular respiration renders sac fungi infertile      (via sciencedaily.com) 

The formation of fruiting bodies for sexual reproduction is a central developmental process in fungi. Even though genetic methods have been applied in recent decades to identify a large number of factors involved in this process, we still lack an understanding of how the formation of different cell types is regulated. A research team has gained new insights by studying a mutant sac fungus that is infertile. The mutant is impaired in its respiratory chain, thus lacking the energy to form fruiting bodies.

Biology: Microbiology Ecology: Trees
Published

Ambrosia beetles breed and maintain their own food fungi      (via sciencedaily.com)     Original source 

A recent experiment provides evidence of a bark beetle species' agricultural capability. The fruit-tree pinhole borer can suppress the growth of weed fungi and promote food fungi.