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Scientists discover organism that hasn't evolved in more than 2 billion years

Researchers discovered a type of sulfur bacteria preserved in rocks over 1.8 billion years old, which remain unchanged and indistinguishable from modern bacteria found in the same region. This finding supports Charles Darwin's theory of evolution by suggesting that evolution occurs only when environmental conditions change.

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateFeb 2, 2015

As temperatures rise, soil will relinquish less carbon to the atmosphere than predicted

A new computer model developed by researchers from the Lawrence Berkeley National Laboratory predicts that warming temperatures will return less soil carbon to the atmosphere than previously thought. The model takes into account the complex interactions between soil microbes and their surroundings, which vary over time and place.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Climate Change·DateNov 17, 2014

Argonne researchers create more accurate model for greenhouse gases from peatlands

A new model developed by Argonne National Laboratory scientists predicts that peatlands in the Arctic will release more methane and less carbon dioxide as they warm, significantly affecting climate change forecasts. The research aims to improve greenhouse gas emission models and address concerns about accelerated warming in the Arctic.

SourceDOE/Argonne National Laboratory·JournalBiogeochemistry·DateOct 3, 2014

UTHealth researchers find up to 3,000 times the bacterial growth on hollow-head toothbrushes

UTHealth researchers discovered that hollow-head toothbrushes harbor up to 3,000 times more bacteria than their solid-head counterparts. The study's findings highlight the importance of choosing a solid-head power toothbrush to minimize bacterial growth and prevent disease transmission.

SourceUniversity of Texas Health Science Center at Houston·JournalJournal of dental hygiene science·DateAug 28, 2014

Choosing cheese

Researchers at Harvard University studied 137 varieties of cheese from 10 countries to identify three general types of microbial communities. These findings provide a model for studying microbial communities and their interactions, with potential applications in understanding various biological processes. The study also reveals the imp...

SourceHarvard University·JournalCell·DateJul 17, 2014

Identifying microbial species

Researchers at Northeastern University developed a device that cultivates a single bacterial species, allowing scientists to study and identify the millions of microorganisms that populate the world. The device solves the problem of natural competition between species, enabling the isolation of pure, single-species samples.

SourceNortheastern University·JournalPLOS ONE·DateJul 3, 2014

For the first time in the lab, researchers see stem cells take key step toward development

University of Illinois researchers develop new technique to induce mouse embryonic stem cells to form three distinct germ layers, a crucial step towards regenerative medicine. The study provides insights into the biological process controlling tissue development and opens doors for efficient organ generation.

Mars mineral could be linked to microbes

Researchers have found microbes create an environment that allows stevensite to form, raising new questions about the Martian deposits and their possible links to life on Mars. Microbialites are the earliest large-scale evidence of life on Earth, demonstrating how microscopic organisms join together to build enormous structures.

SourceAustralian National University·JournalGeology·DateMay 19, 2014

Antarctic moss lives after 1,500+ years under ice

Researchers have discovered that Antarctic mosses can regenerate after 1,500 years of dormancy under the ice. This finding has significant implications for understanding polar ecosystems and climate change, as mosses play a crucial role in storing carbon in both northern and southern polar regions.

SourceCell Press·JournalCurrent Biology·DateMar 17, 2014

The nitrogen puzzle in the oceans

A team of scientists has revealed the details of a microbial process regulating the global nitrogen budget in the oceans. They found that anammox, a process converting fixed nitrogen to N2, affects primary productivity and isocyan signature patterns in oxygen minimum zones.

SourceMax-Planck-Gesellschaft·JournalProceedings of the National Academy of Sciences·DateNov 4, 2013

Lots of oxygen does not necessarily lead to the evolution of advanced life

A Danish/Swedish/French research team has shown that oxygen content in the atmosphere was probably the same as when life exploded 500 million years ago, contradicting textbooks' claim of oxygen's necessity for advanced life. This finding contributes to a new understanding of the Earth's development and oxygen dynamics.

SourceUniversity of Southern Denmark·JournalProceedings of the National Academy of Sciences·DateOct 18, 2013

Farm and germ education go hand in hand

A study published in PLOS ONE found that interactive farm hygiene lessons improved students' knowledge of germ spread and prevention, especially among girls. The lesson increased post-lesson scores by 21% for girls and 14% for boys, with a total increase of 13% in hand-to-mouth behavior awareness.

SourcePLOS·JournalPLOS ONE·DateOct 16, 2013

A microbe's trick for staying young

Researchers have discovered a microbe called S. pombe that can escape aging when treated well and reproduce by splitting into two halves with new fully-functional material. The team found that under favourable growth conditions, the yeast is immune to aging and produces offspring that are younger than the parent.

SourceUniversity of Bristol·JournalCurrent Biology·DateSep 12, 2013

High-angle helix helps bacteria swim

Researchers from Brown University and the University of Wisconsin discovered that a high-angle helix enables bacteria to swim faster in viscoelastic fluids, clearing up previously conflicting findings. The study's findings have implications for understanding bacterial infection and fertility.

SourceBrown University·JournalPhysical Review Letters·DateAug 13, 2013

Phytoplankton social mixers

Research shows that phytoplankton form concentrated patches in turbulent ocean water, counterintuitive to expectations of uniform distribution. This phenomenon, known as 'turbulent un-mixing,' helps phytoplankton find cells of the same species without sensory information.

SourceMassachusetts Institute of Technology·JournalNature Communications·DateJul 15, 2013

Buckling up to turn

Researchers at MIT used high-speed video to record individual marine bacteria and found that a small flexible rod called the hook bucks during forward swims, causing the cell to tumble and reorient. This unusual mechanism helps bacteria navigate toward food in nutrient-sparse ocean waters.

SourceMassachusetts Institute of Technology·JournalNature Physics·DateJul 8, 2013

New phytase effective in improving phosphorus, calcium digestibility in pigs

A new microbial phytase derived from Aspergillus oryzae has been found to be highly effective at releasing phosphorus from the phytate molecule. The enzyme, Ronozyme HiPhos, improves phosphorus and calcium digestibility in pigs by up to 68.7% and 84.7%, respectively.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalJournal of Animal Science and Biotechnology·DateJun 5, 2013