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Categories: Biology: Genetics, Paleontology: Fossils

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Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Unlocking the world of bacteria      (via sciencedaily.com)     Original source 

Bacteria possess unique traits with great potential for benefiting society. However, current genetic engineering methods to harness these advantages are limited to a small fraction of bacterial species. A team has now introduced a novel approach that can make many more bacteria amenable to genetic engineering. Their method, called IMPRINT, uses cell-free systems to enhance DNA transformation across various bacterial strains.

Archaeology: General Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Paleontology: Fossils
Published

Almonds, pottery, wood help date famed Kyrenia shipwreck      (via sciencedaily.com)     Original source 

Researchers have identified the likeliest timeline of the famous Hellenistic-era Kyrenia shipwreck, discovered and recovered off the north coast of Cyprus in the 1960s.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

The on-and-off affair in DNA      (via sciencedaily.com)     Original source 

Researchers have discovered that in thale cresses histone H3 lysine-9 (H3K9) methylation, conventionally thought to be a mark of turning off gene transcription, can also turn on gene expression via the interactions of two other proteins and histone marks. The molecular mechanisms demonstrate that rather than functioning as a simple 'off switch,' H3K9 methylation is more like a 'dimmer switch' that fine-tunes DNA transcription. The discovery suggests there might be similar mechanisms in other organisms, too.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Chemistry: Biochemistry Engineering: Nanotechnology
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Revealing the dynamic choreography inside multilayer vesicles      (via sciencedaily.com)     Original source 

Our cells and the machinery inside them are engaged in a constant dance. This dance involves some surprisingly complicated choreography within the lipid bilayers that comprise cell membranes and vesicles -- structures that transport waste or food within cells. In a recent paper, researchers shed some light on how these vesicles self-assemble, knowledge that could help scientists design bio-inspired vesicles for drug-delivery or inspire them to create life-like synthetic materials.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Zebrafish reveal how bioelectricity shapes muscle development      (via sciencedaily.com)     Original source 

New research describes how nerve cells and muscle cells communicate through electrical signals during development -- a phenomenon known as bioelectricity. The communication, which takes place via specialized channels between cells, is vital for proper development and behavior. The study identifies specific genes that control the process, and pins down what happens when it goes wrong. The finding offers clues to the genetic origins of muscle disorders in humans.

Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: Evolutionary Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Discovery of vast sex differences in cellular activity has major implications for disease treatment      (via sciencedaily.com)     Original source 

The study reveals vast differences in gene activity within the mitochondria of males compared to females. This is the first study to test effects of all 37 genes in the mitochondrial genome -- genes that copepods and humans share. The study found that males demonstrate more activity across all protein-coding mitochondrial genes than females. Although the study looks at tiny marine organisms called copepods, the findings have weighty implications for human medicine.

Biology: Biochemistry Biology: Biotechnology Biology: Botany Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular Ecology: Endangered Species
Published

Removal of excess chloride ions by plants when subjected to salt stress      (via sciencedaily.com)     Original source 

Researchers have discovered a salt adaptation mechanism in plants that facilitates chloride removal from the roots and enhancing salinity tolerance. A research team has uncovered a novel mechanism of plant adaptation to salt stress involving the NaCl-induced translocation of a specific chloride channel protein, AtCLCf.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

How cells boost gene expression      (via sciencedaily.com)     Original source 

The function of non-coding RNA in the cell has long been a mystery to researchers. Unlike coding RNA, non-coding RNA does not produce proteins -- yet it exists in large quantities. A research team has now discovered an important function of antisense RNA (asRNA): the researchers found that asRNA acts as a 'superhighway' in cell transport and thus accelerates gene expression.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology
Published

How to make aging a 'fairer game' for all wormkind      (via sciencedaily.com)     Original source 

Researchers have discovered a new fundamental mechanism governing the rules of ageing in worms. The researchers were able to manipulate the mechanism through genetic interventions which dramatically extend not just the lifespan of the worms, but also their health-span. In other words, trading weak, frail old age with vigorous golden years -- all without altering their diet, environment or other external factors.

Biology: Biochemistry Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Animals
Published

Wild yeasts from Patagonia could yield new flavors of lagers      (via sciencedaily.com)     Original source 

New strains of yeast for brewing lager beers, created by hybridizing wild strains of yeast from Patagonia with brewer's yeast, can yield novel flavors and aromas, researchers report.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics
Published

Is coffee good for you or bad for you?      (via sciencedaily.com)     Original source 

The effects of coffee consumption on human health is a knotty question, but one thing is sure: coffee is a psychoactive substance.

Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular
Published

How targeted nutrients can fight cancer      (via sciencedaily.com)     Original source 

An international research team has discovered a new way to effectively treat cancer, by using nutrients to reactivate suppressed metabolic pathways in cancer cells.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Molecular Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Where to put head and tail?      (via sciencedaily.com)     Original source 

Formation of the body axes is a critical part of embryonic development. They guarantee that all body parts end up where they belong and that no ears grow on our backs. The head-tail axis, for example, determines the orientation of the two ends of the body. It was previously assumed that this axis is largely determined by the interplay between the Nodal and BMP signals. However, there appears to be another player in this system, as researchers have now discovered by using an embryo-like model system they developed. In the absence of BMP, the signalling molecule beta-catenin takes on the role of the Nodal antagonist. This new mechanism could be a flexible solution for axis formation in embryos with different shapes.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Genetics Biology: Molecular
Published

How the ketogenic diet improves healthspan and memory in aging mice      (via sciencedaily.com)     Original source 

The ketogenic diet has its fanatics and detractors among dieters, but either way, the diet has a scientifically documented impact on memory in mice. While uncovering how the high fat, low carbohydrate diet boosts memory in older mice, scientists identified a new molecular signaling pathway that improves synapse function and helps explain the diet's benefit on brain health and aging.

Anthropology: General Biology: Evolutionary Biology: Marine Biology: Zoology Ecology: Extinction Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Dinosaurs Paleontology: Fossils Paleontology: General
Published

Ancient polar sea reptile fossil is oldest ever found in Southern Hemisphere      (via sciencedaily.com)     Original source 

An international team of scientists has identified the oldest fossil of a sea-going reptile from the Southern Hemisphere -- a nothosaur vertebra found on New Zealand's South Island. 246 million years ago, at the beginning of the Age of Dinosaurs, New Zealand was located on the southern polar coast of a vast super-ocean called Panthalassa. 'The nothosaur found in New Zealand is over 40 million years older than the previously oldest known sauropterygian fossils from the Southern Hemisphere.