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Categories: Biology: Microbiology, Space: The Solar System
Published Rapid, simultaneous detection of multiple bacteria achieved with handheld sensor
(via sciencedaily.com) Original source A team has developed a method for simultaneous detection of multiple disease-causing bacterial species within one hour using a handheld device.
Published CHEOPS detects a 'rainbow' on an exoplanet
(via sciencedaily.com) Original source The CHEOPS space telescope is providing new information on the mysterious exoplanet WASP-76b. This ultra-hot giant is characterized by an asymmetry between the amount of light observed on its eastern terminator -- the fictitious line that separates its night side from its day side -- and that observed on its western terminator. This peculiarity is thought to be due to a 'glory', a luminous phenomenon similar to a rainbow, which occurs if the light from the star -- the 'sun' around which the exoplanet orbits -- is reflected by clouds made up of a perfectly uniform substance. If this hypothesis is confirmed, this would be the first detection of this phenomenon outside our solar system.
Published What four decades of canned salmon reveal about marine food webs
(via sciencedaily.com) Original source Researchers have shown that levels of anisakid worms -- a common marine parasite -- rose in two salmon species in the Gulf of Alaska and Bristol Bay over a 42-year period. The team discovered this by studying salmon caught, killed and canned from 1979 to 2021. Since anisakid worms have a complex life cycle involving multiple types of hosts, the researchers interpret their rising numbers as a potential sign of ecosystem recovery, possibly driven by rising numbers of marine mammals thanks to the 1972 Marine Mammal Protection Act.
Published New research offers insight into the future understanding of MS and its treatments
(via sciencedaily.com) Original source Researchers have developed a new and unique blood test to measure the immune response to the Epstein Barr Virus (EBV) which is the leading risk factor for developing multiple sclerosis (MS). Their findings have implications for future basic research in further understanding the biology of EBV in MS, but also has the potential to be applied in clinical trials that target the virus.
Published Heat flows the secret to order in prebiotic molecular kitchen
(via sciencedaily.com) Original source Biophysicists have demonstrated how heat flows through rock fissures could have created the conditions for the emergence of life.
Published Microbial signature of colorectal cancer-associated mutations identified in new study
(via sciencedaily.com) Original source Researchers have connected KRAS mutations in colorectal cancer to microbial signatures in the gut.
Published New tools reveal how genes work and cells organize
(via sciencedaily.com) Original source Researchers have discovered how certain proteins can attach to special structures in RNA, called G-quadruplexes. Additionally, they have developed computational tools capable of predicting these protein-RNA interactions. The newfound ability to predict these interactions can help future work in understanding molecular pathways in the cell and pave the way for developing drugs targeting these RNA G-quadruplex binding proteins, that are found to be involved in disease such as cancer.
Published Evolution in action? New study finds possibility of nitrogen-fixing organelles
(via sciencedaily.com) Original source A new study finds that UCYN-A, a species of nitrogen-fixing cyanobacteria, may be evolving organelle-like characteristics.
Published Giant phage holds promise as treatment for lung infections
(via sciencedaily.com) Original source Researchers have discovered a new bacterial killer that can target common lung infection caused by Burkholderia bacteria that has exciting potential for biotechnological applications.
Published Discovery could end global amphibian pandemic
(via sciencedaily.com) Original source A fungus devastating frogs and toads on nearly every continent may have an Achilles heel. Scientists have discovered a virus that infects the fungus, and that could be engineered to save the amphibians.
Published Plastic-free vegan leather that dyes itself grown from bacteria
(via sciencedaily.com) Original source Researchers have genetically engineered bacteria to grow animal- and plastic-free leather that dyes itself.
Published New discovery unravels malaria invasion mechanism
(via sciencedaily.com) Original source A recent breakthrough sheds light on how the malaria parasite, Plasmodium falciparum, invades human red blood cells. The study reveals the role of a sugar called sialic acid in this invasion process. The findings have major implications for malaria vaccine and drug development.
Published Scientists further our understanding of how a foodborne bacterium can survive in food preparation environments
(via sciencedaily.com) Original source Scientists have discovered that bacterial populations remain stable on factory floor despite cleaning efforts in ready-to-eat food production facilities.
Published Scientists link certain gut bacteria to lower heart disease risk
(via sciencedaily.com) Original source Changes in the gut microbiome have been implicated in a range of diseases including type 2 diabetes, obesity, and inflammatory bowel disease. Now, a team of researchers has found that microbes in the gut may affect cardiovascular disease as well. The team has identified specific species of bacteria that consume cholesterol in the gut and may help lower cholesterol and heart disease risk in people.
Published Infant gut microbes have their own circadian rhythm, and diet has little impact on how the microbiome assembles
(via sciencedaily.com) Original source Infant gut microbiomes oscillate with a circadian rhythm, even when they are cultivated outside of the body. Researchers report that the rhythm is detectable as early as 2 weeks after birth but becomes more pronounced with age. The finding comes from a randomized controlled trial that also showed that diet has less impact on the development and composition of the infant microbiome than previously thought.
Published New method reveals hidden activity of life below ground
(via sciencedaily.com) Original source Researchers have refined an innovative method for measuring the activity level of microbes and linking that to their individual genetic code, providing new insights into the microbial communities that thrive in extreme environments.
Published New antibiotic class effective against multidrug-resistant bacteria
(via sciencedaily.com) Original source Scientists have discovered a new class of antibiotics with potent activity against multi-drug resistant bacteria, and have shown that it cures bloodstream infections in mice. Two publicly-funded initiatives dedicated to advancing early-stage antibiotic development, ENABLE and ENABLE-2, provided the resources and expert support without which this antibiotic would not have been developed.
Published When inequality is more than 'skin-deep': Social status leaves traces in the epigenome of spotted hyenas in Tanzania
(via sciencedaily.com) Original source A research consortium provides evidence that social behavior and social status are reflected at the molecular level of gene activation (epigenome) in juvenile and adult free-ranging spotted hyenas. They analyzed non-invasively collected gut epithelium samples from both high-ranking and low-ranking female hyenas and showed that rank differences were associated with epigenetic signatures of social inequality, i.e., the pattern of activation or switching off of genes that regulate important physiological processes such as energy conversion and immune response in several genome regions.
Published How the Crimean-Congo hemorrhagic fever virus enters our cells
(via sciencedaily.com) Original source Researchers have identified how the tick-borne Crimean-Congo haemorrhagic fever virus enters our cells. The results are an important step in the development of drugs against the deadly disease.
Published Genomic research may help explain cancer resistance in Tasmanian devils
(via sciencedaily.com) Original source Through DNA sequencing of Tasmanian devils and their tumors, researchers have tracked the genomic interactions between the animals and the cancer.