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Categories: Biology: General, Geoscience: Severe Weather

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Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology
Published

Researchers pinpoint brain cells that delay first bite of food      (via sciencedaily.com)     Original source 

Do you grab a fork and take a first bite of cake, or say no and walk away? Our motivation to eat is driven by a complex web of cells in the brain that use signals from within the body, as well as sensory information about the food in front of us, to determine our behaviors. Now, scientists have identified a group of neurons in a small and understudied region of the brain -- the parasubthalamic nucleus (PSTN) -- that controls when an animal decides to take a first bite of food.

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

Novel genome editing approach restores hearing in adult preclinical models with genetic deafness      (via sciencedaily.com)     Original source 

Researchers restored hearing in preclinical mouse models with a specific form of inherited deafness called DFNA50 caused by mutations in microRNA, by using a novel in vivo CRISPR genome editing approach. Since mouse and human microRNAs have identical sequences, the researchers hope this work can one day be translated into applications for humans.

Ecology: Nature Environmental: Ecosystems Environmental: General Geoscience: Severe Weather
Published

Planted mangroves' ability to store carbon      (via sciencedaily.com)     Original source 

Ecologists have published new findings on how planted mangroves can store up to 70% of carbon stock to that found in intact stands after only 20 years.

Biology: Biochemistry Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology
Published

Pumpkin disease not evolving, could make a difference for management      (via sciencedaily.com)     Original source 

The pathogen that causes bacterial spot is very good at what it does. Forming small lesions on the rinds of pumpkins, melons, cucumbers, and other cucurbits, it mars the fruits' appearance and ushers in secondary pathogens that lead to rot and severe yield loss. The bacterium, Xanthomonas cucurbitae, is so successful that it has had no reason to evolve through time or space.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology
Published

Discovery of a new defense mechanism in bacteria      (via sciencedaily.com)     Original source 

When confronted with an antibiotic, toxic substance, or other source of considerable stress, bacteria are able to activate a defense mechanism using cell-to-cell communication to 'warn' unaffected bacteria, which can then anticipate, shield themselves and spread the warning signal.

Biology: Biochemistry Biology: Botany Biology: Cell Biology Biology: Evolutionary Biology: General Biology: Genetics Biology: Microbiology Ecology: Endangered Species Ecology: Nature
Published

Not so simple: Mosses and ferns offer new hope for crop protection      (via sciencedaily.com)     Original source 

Mosses, liverworts, ferns and algae may offer an exciting new research frontier in the global challenge of protecting crops from the threat of disease.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Marine Ecology: Sea Life
Published

The detection of a massive harmful algal bloom in the Arctic prompts real-time advisories to western Alaskan communities      (via sciencedaily.com)     Original source 

A summer 2022 research cruise that detected a massive and highly toxic harmful algal bloom (HAB) in the Bering Strait has provided a dramatic example of science that utilized new technology to track a neurotoxic HAB and effectively communicate that information in real-time to protect remote communities in coastal Alaska.

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

Phage-derived enzyme targets E. faecalis biofilms to mitigate acute graft-versus-host disease      (via sciencedaily.com)     Original source 

Acute graft-versus-host disease occurs when donor immune cells attack the recipient's tissues after an allogeneic hematopoietic stem cell transplantation (allo-HCT). Researchers recently identified a bacteriophage-derived enzyme called endolysin capable of targeting biofilms formed by Enterococcus faecalis. Their findings offer hope for tailored interventions in allo-HCT.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather
Published

The Gulf Stream is wind-powered and could weaken from climate change      (via sciencedaily.com)     Original source 

New evidence of changes to the Gulf Stream during the last ice age could indicate additional sensitivity to future climatic changes, finds a new study.

Biology: Biochemistry Biology: Botany Biology: Evolutionary Biology: General Ecology: Animals Ecology: Endangered Species
Published

Tackling the challenge of coca plant ID: Wild vs cultivated for cocaine      (via sciencedaily.com)     Original source 

A new paper reveals that it's not as straightforward as it might seem. Despite decades of data collection by the United Nations Office on Drugs and Crime (UNODC), which has been valuable to monitor changes in areas occupied by illegal coca plantations in South America, there is no reliable scientific method to distinguish between different types of coca plants.

Biology: Biochemistry Biology: Botany Biology: General Ecology: Invasive Species Ecology: Nature Ecology: Trees
Published

Study examines tree adaptability to climate change      (via sciencedaily.com)     Original source 

Many trees could expand their ranges by more than 25 percent based on their potential temperature tolerances.

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

New one-step method to make multiple edits to a cell's genome      (via sciencedaily.com)     Original source 

A team of scientists have developed a new method that enables them to make precise edits in multiple locations within a cell -- all at once. Using molecules called retrons, they created a tool that can efficiently modify DNA in bacteria, yeast, and human cells.

Biology: Biochemistry Biology: Marine Biology: Zoology Ecology: Sea Life Environmental: Ecosystems Environmental: General Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather Offbeat: Earth and Climate Offbeat: General Offbeat: Plants and Animals
Published

Groundbreaking study reveals oceanic seabirds chase tropical cyclones      (via sciencedaily.com)     Original source 

A new study reveals that the rare Desertas Petrels (Pterodroma deserta), a wide-ranging seabird in the North Atlantic, exhibit unique foraging behaviors during hurricane season. Contrary to other pelagic seabirds, these petrels do not avoid intense tropical cyclones but instead exploit the dynamic conditions for their benefit, providing new insights into the impact of cyclones on open ocean marine life.

Biology: Botany Biology: General Ecology: Endangered Species Ecology: General Ecology: Nature Ecology: Research Environmental: Ecosystems
Published

How a plant app helps identify the consequences of climate change      (via sciencedaily.com)     Original source 

A research team has developed an algorithm that analyses observational data from a plant identification app. The novel approach can be used to derive ecological patterns that could provide valuable information about the effects of climate change on plants.