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Posted: 15 Oct 2021 10:32 AM PDT Bacteria can store extra resources for the lean times. It's a bit like keeping a piggy bank or carrying a backup battery pack. One important reserve is known as cyanophycin granules, which were first noticed by an Italian scientist about 150 years ago. He saw big, dark splotches in the cells of the blue-green algae (cyanobacteria) he was studying without understanding either what they were or their purpose. Since then, scientists have realized that cyanophycin was made of a natural green biopolymer, that bacteria use it as a store of nitrogen and energy, and that it could have many biotechnological applications. |
Key protein linked to appetite and obesity in mice Posted: 15 Oct 2021 10:32 AM PDT Researchers have identified a protein that plays a key role in how the brain regulates appetite and metabolism. Loss of the protein, XRN1, from the forebrain, resulted in obese mice with an insatiable appetite, according to a new study. |
Posted: 15 Oct 2021 08:12 AM PDT Between 2016 and 2018, researchers studied wild boar and rat snakes across a range of radiation exposures in Fukushima. The team examined biomarkers of DNA damage and stress and did not find any significant adverse health effects. |
How to program DNA robots to poke and prod cell membranes Posted: 15 Oct 2021 08:12 AM PDT A discovery of how to build little blocks out of DNA and get them to stick to lipids has implications for biosensing and mRNA vaccines. |
New model to assess for flood hazards Posted: 14 Oct 2021 02:27 PM PDT A new article presents a new methodology to create a watershed-scale flood model based on LiDAR data. |
New theories and materials aid the transition to clean energy Posted: 14 Oct 2021 02:27 PM PDT Scientists have explored different approaches to catalysis, a chemical process that plays an essential role in biological reactions, as well as many industrial applications. Chemical catalysts have been used in a variety of human applications, ranging from pharmaceutical development to biodegradable plastics and environmentally safe fertilizers. They may also advance the development of green energy solutions to address the climate crisis. |
Filling the gaps: Connecting genes to diseases through proteins Posted: 14 Oct 2021 11:18 AM PDT Hundreds of connections between different human diseases have been uncovered through their shared origin in our genome, challenging the categorization of diseases by organ, symptoms, or clinical specialty. A new study has generated data on thousands of proteins circulating in our blood and combined this with genetic data to produce a map showing how genetic differences that affect these proteins link together seemingly diverse as well as related diseases. |
Shedding light on mysterious jellyfish diets Posted: 14 Oct 2021 10:39 AM PDT Jellyfish have voracious appetites, and they aren't considered the most selective eaters. Almost anything that gets stuck to their tentacles winds up in the gelatinous sack that they use to digest their food. This 'take what comes' feeding strategy has clouded our understanding of which foods jellyfish survive on and how they fit in food webs. However, new research using two biochemical tools, stable isotopes and fatty acids, are beginning to unlocking the secrets of jellyfish feeding. |
Americans are eating more ultra-processed foods Posted: 14 Oct 2021 07:20 AM PDT Consumption of ultra-processed foods has increased over the past two decades across nearly all segments of the U.S. population, according to a new study. |
Don’t go green with envy, but fish might be able to distinguish color more effectively than humans Posted: 13 Oct 2021 12:22 PM PDT Researchers have revealed that non-mammalian vertebrates might have a much more simple and effective way of deciphering between colour and greyscale information than humans, tracking explanations back to early evolution. |
First global estimate of importance of pollinators for seed production in plants Posted: 13 Oct 2021 12:21 PM PDT Without pollinators, a third of flowering plant species would produce no seeds and half would suffer an 80% or more reduction in fertility. Therefore, even though auto-fertility is common, it by no means fully compensates for reductions in pollination service in most plant species. |
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