Have model organisms evolved too far?
A model organism used in laboratories for the past 100 years has evolved so extensively that it may no longer be fit for purpose.
Evolution
Feb 7, 2023
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25
News tagged with bacterial genomes
Legionella bononiensis: A new Legionella species has been identified
They call it Legionella bononiensis: it is the 64th species of Legionella identified worldwide, the second to be isolated in Italy since the discovery of the pathogen. It was discovered in 2019 in a hotel facility by researchers ...
Evolution
Jan 10, 2023
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14
Belt and suspenders: Alpine lake bacteria deploy two light-harvesting systems
Though humans, along with other vertebrate and invertebrate organisms, don't photosynthesize, we're definitely the downstream beneficiaries of the life forms that do. Phototrophic organisms at the bottom of the food chain ...
New CRISPR-based tool inserts large DNA sequences at desired sites in cells
Building on the CRISPR gene-editing system, MIT researchers have designed a new tool that can snip out faulty genes and replace them with new ones, in a safer and more efficient way.
Biotechnology
Nov 24, 2022
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738
Revealing biochemical 'rings of power'
Benzobactins are bacterial natural products that have special biological activity due to a compound consisting of two ring structures. The bacterial genes responsible for the formation of the compound were previously unclear. ...
Biochemistry
Nov 18, 2022
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47
Pockets of resistance found in survey of pathogen diversity
Unparalleled insights into the secret life of Streptococcus pneumoniae, the bacterium responsible for hundreds of thousands of infant deaths each year, have been revealed by new research from the Wellcome Sanger Institute, ...
Cell & Microbiology
Oct 10, 2022
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30
Viruses knowledge unlocked by new metagenomics technologies
Metagenomic sequencing techniques allows the study of microbiomes from all sorts of habitats, and using this to explore phages (bacteriophage genomes integrated into the circular bacterial chromosome) has expanded knowledge ...
Molecular & Computational biology
Oct 5, 2022
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61
New bacterial species discovered in the intestine
Whether plant, animal or human, living organisms are colonized by a multitude of bacteria. Research findings in recent years show that bacteria not only co-exist with their host, but form mutual interactions in the form of ...
Cell & Microbiology
Sep 29, 2022
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41
New model captures erratic speed of DNA copying proteins in bacteria
Cell division is fundamental for life, allowing organisms to grow, repair tissues, and reproduce. For a cell to divide, all the DNA inside the cell (the genome) must first be copied, in a process called DNA replication. But ...
Cell & Microbiology
Sep 29, 2022
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8
Nanoparticle sensor can distinguish between viral and bacterial pneumonia
Many different types of bacteria and viruses can cause pneumonia, but there is no easy way to determine which microbe is causing a particular patient's illness. This uncertainty makes it harder for doctors to choose effective ...
Biochemistry
Jun 13, 2022
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