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Categories: Biology: Molecular, Paleontology: Fossils

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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: 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.

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

The genetic 'switches' of bone growth      (via sciencedaily.com)     Original source 

In mammals, only 3% of the genome consists of coding genes which, when transcribed into proteins, ensure the biological functions of the organism and the in-utero development of future individuals. But genes do not function alone. They are controlled by other sequences in the genome, called enhancers, which, like switches, activate or deactivate them as required. A team has now identified and located 2700 enhancers -- among millions of non-coding genetic sequences -- that precisely regulate the genes responsible for bone growth. This discovery sheds light on one of the major factors influencing the size of individuals in adulthood, and explains why their failure could be the cause of certain bone malformations.

Biology: General Ecology: Extinction Ecology: Nature Ecology: Research Ecology: Sea Life Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils Paleontology: General
Published

Sharks have depleted functional diversity compared to the last 66 million years      (via sciencedaily.com)     Original source 

New research has found that sharks retained high levels of functional diversity for most of the last 66 million years, before steadily declining over the last 10 million years to its lowest value in the present day.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Paleontology: Climate Paleontology: Fossils Paleontology: General
Published

Ancient ocean slowdown warns of future climate chaos      (via sciencedaily.com)     Original source 

When it comes to the ocean's response to global warming, we're not in entirely uncharted waters. A new study shows that episodes of extreme heat in Earth's past caused the exchange of waters from the surface to the deep ocean to decline.

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

The gender gap in life expectancy: Are eggs and sperm partly responsible?      (via sciencedaily.com)     Original source 

Researchers have found that germ cells, which develop into eggs and sperm, drive sex-dependent differences in lifespan in vertebrates. Female and male germ cells increase and reduce lifespan, respectively. These effects are controlled via estrogen and growth factor hormones in females and vitamin D in males. Vitamin D supplementation extends lifespan in both males and females. The results clarify the link between reproduction and aging and show that vitamin D may improve longevity in vertebrates.

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

No bones about it: 100-million-year-old bones reveal new species of pterosaur      (via sciencedaily.com)     Original source 

New research has identified 100-million-year-old fossilized bones discovered in western Queensland as belonging to a newly identified species of pterosaur, which was a formidable flying reptile that lived among the dinosaurs.

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

Scientists engineer yellow-seeded camelina with high oil output      (via sciencedaily.com)     Original source 

Using tools of modern genetics, plant biochemists have produced a new high-yielding oilseed crop variety -- a yellow-seeded variety of Camelina sativa, a close relative of canola, that accumulates 21.4% more oil than ordinary camelina.

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

Virus-like nanoparticles control the multicellular organization and reproduction of host bacteria      (via sciencedaily.com)     Original source 

Researchers have discovered that virus-like nanoparticles can promote the multicellular organization and reproduction of host bacteria. These particles, which are evolutionarily related to phages (viruses that infect bacteria), contain an enzyme that helps shape the multicellular architecture and ultimately enhances morphological differentiation.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Molecular Chemistry: Biochemistry Chemistry: Organic Chemistry Computer Science: General Energy: Alternative Fuels Energy: Technology Offbeat: Computers and Math Offbeat: General Offbeat: Plants and Animals
Published

Algae offer real potential as a renewable electricity source      (via sciencedaily.com)     Original source 

The need to transition away from fossil fuels to more sustainable energy production is critical. That's why a team of researchers is looking at a potential power source that not only produces no carbon emissions but removes carbon as it works: algae.

Anthropology: General Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology Environmental: General Geoscience: Earth Science Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Plants and Animals Paleontology: Fossils
Published

Scientists unlock secrets of how archaea, the third domain of life, makes energy      (via sciencedaily.com)     Original source 

An international scientific team has redefined our understanding of archaea, a microbial ancestor to humans from two billion years ago, by showing how they use hydrogen gas. The findings explain how these tiny lifeforms make energy by consuming and producing hydrogen. This simple but dependable strategy has allowed them to thrive in some of Earth's most hostile environments for billions of years.

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

Protein study could help researchers develop new antibiotics      (via sciencedaily.com)     Original source 

A team has found a way to make the bacterial enzyme histidine kinase water-soluble, which could make it possible to rapidly screen potential antibiotics that might interfere with its functions.