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#bacteria

2 posts2 participants0 posts today
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

Leading scientists warn against developing ‘mirror-image’ #bacteria
Looking-glass organisms would pose existential threat, they say, mirror-image bacteria whose chemical makeup differs in a fundamental way from that of naturally existing organisms. Others say restrictions are premature.
It could be a nightmare lab leak: Synthetic bacteria escape the petri dish and unleash a global plague that life on Earth is incapable of defending itself against.
science.org/content/article/le
archive.ph/alkfb

Public
elegance@socialhome.network

Nature to the Rescue - A Treehugger Article

"Avoiding pollution in the first place would be best. But as we transition to a post-carbon future, biological solutions can help us find a path forward."

"Bioremediation is a fascinating area to explore if you are interested in ecology, ecosystems, and nature restoration. This is the process by which we use plants, bacteria, or fungi to clean up contaminated air, soil, or water. There is a wide range of natural processes that can be co-opted to clean up the mess we make.

We all know that human development often comes at a cost to the environment. Many landscapes and ecosystems have been severely degraded by human activity—and polluted by industry and poor waste management. But the good news is that bioremediation techniques can be utilized to remove or reduce pollutants and "fix" ecosystems that have already been damaged.

Here are a few examples of bioremediation, which serve as illustrations of what can be done... read on..."

#environment #plants #fungi #bacteria #allies in #regeneration #Earth #Gaia #hope

TreehuggerHow Plants and Microorganisms Can Clean up the Mess We MakeAvoiding pollution in the first place would be best. But as we transition to a post-carbon future, biological solutions can help us find a path forward.
Public
O=C=O

How a Changing Climate Is Reshaping the Spread of Infectious Diseases

"...Then you have this convergence of crises—the #ClimateCrisis overlapping with the #PollutionCrisis. So you get this intersection between air pollution and respiratory #diseases, and then infectious diseases more broadly, all layered on top of a changing #climate.

When it comes to waterborne and foodborne diseases, the link to #ClimateChange is even more direct. As temperatures rise, you create more favorable conditions for #bacteria and other #pathogens to multiply. They thrive in warm environments—soil, water, contaminated areas—so warming can increase their abundance.

#ExtremeWeather events are also a big factor here. Aedes #mosquitoes need water to complete their life cycle—from egg to larva to pupa, it all happens in #water. When #floods occur, all the discarded #plastic and #trash lying around fill with water and becomes the ideal breeding ground for mosquitoes.

What’s interesting is that these diseases aren’t just associated with floods—they’re also linked to #droughts. That might seem counterintuitive at first, but in many parts of the world, people don’t have safe, reliable access to clean water, especially during drought conditions. So they store water in containers that aren’t properly sealed or protected, which too can become the perfect breeding sites for mosquitoes.

Infections—particularly vector-borne diseases—are increasingly reemerging and emerging in new areas around the world for a lot of different reasons. Climate change is definitely part of that, with rising temperatures and more extreme weather events like floods and droughts. But the way we live our lives and interact with the environment also plays a huge role. I mean, first and foremost, most of us now live in urban areas rather than rural ones..."

insideclimatenews.org/news/260

#Health
#ClimateChange

Swarms of mosquitoes near Wainwright, Alaska in 2011. Credit: Bonnie Jo Mount/The Washington Post via Getty Images
Mosquitoes, for example, rely heavily on ambient temperature. They’re ectotherms, meaning they depend on room temperature to function. Every vector species has multiple traits that are influenced by temperature. If you map all those temperature-dependent traits, you can build a curve that shows the optimal temperature range for that vector. Depending on where you fall on that curve, if you’re already past the peak and temperatures keep rising, there’s actually the potential for a decrease in transmission risk. But these systems are highly nuanced. It’s not just about temperature—it’s also about human behavior and how we alter natural habitats. And vectors can evolve, too. So it’s almost like we’re in a race with other organisms to adapt more quickly.
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

#GenerativeAI tool marks a milestone in #biology
Trained on a dataset of 100,000 organisms from #bacteria to #humans – and a few extinct ones – #Evo2 can predict the form and function of #proteins in the #DNA of all domains of life and run experiments in a fraction of the time it would take a traditional lab.The system can quickly determine what #gene mutations contribute to certain #diseases and what mutations are mostly harmless.
news.stanford.edu/stories/2025
#genetics

news.stanford.eduGenerative AI tool marks a milestone in biologyTrained on a dataset that includes all known living species – and a few extinct ones – Evo 2 can predict the form and function of proteins in the DNA of all domains of life.
Public
Mikko Tuomi

The origin of the eukaryotic cell corresponded to the most significant increase in #complexity in the history of #life's evolution on Earth.

The billions of years that have passed since the fusion of an #archaea and a #bacteria have resulted in a lack of evolutionary intermediates in the phylogenetic tree until the emergence of the #eukaryotes.

Now researchers present theoretical and observational evidence that a phase transition in genetic complexity was involved.

phys.org/news/2025-04-evolutio

Phys.org · An evolutionary algorithmic phase transition 2.6 billion years ago may have sparked the emergence of eukaryotic cellsBy Kathrin Voigt
Public
preLights

Bring bacteria back! 🦠 The influence of microbial manipulation on sugar kelp development.

Jasmine Talevi covers work from Jungsoo Park & team (#ParfreyLab) that highlights the fundamental role microbiomes play across diverse biological systems. #preprint

#preLight ⬇️ 👀
prelights.biologists.com/highl

preLightsAn experimental test of the influence of microbial manipulation on sugar kelp (Saccharina latissima) supports the core influences host function hypothesis - preLightsBring bacteria back: The influence of microbial manipulation on sugar kelp development
#biology#ecology#kelp
Public *
Lukas VFN 🇪🇺

With new database, researchers may be able to predict rare 'milky seas' bioluminescent event
phys.org/news/2025-04-database

From Sailors to Satellites: A Curated Database of Bioluminescent #MilkySeas Spanning 1600-Present agupubs.onlinelibrary.wiley.co

"For generations, sailors around the globe have reported a mysterious phenomenon: Vast areas of the ocean glow steadily at night, sometimes for months on end. The light is bright enough to read by... it likely comes from activity of Vibrio harveyi #bacteria."

Satellite image showing a bright blue-green discoloration in the sea
Public
Paul Houle

🦠 Emulsion technique boosts plant growth with bacteria

phys.org/news/2025-03-emulsion

phys.orgEmulsion technique boosts plant growth with bacteriaResearchers have demonstrated a technique for successfully encapsulating bacteria that can then be stored and applied to plants to improve plant growth and protect against pests and pathogens. The technique opens the door to creating a wide range of crop applications that allow farmers to make use of these beneficial bacteria in conjunction with agrochemicals. The paper, "Pickering Emulsion for Enhanced Viability of Plant Growth Promoting Bacteria and Combined Delivery of Agrochemicals and Biologics," is published in the journal Advanced Functional Materials.
#agriculture#plants#microbes
Public
Lukas VFN 🇪🇺

#MolecularClock analysis shows #bacteria used oxygen long before widespread photosynthesis
phys.org/news/2025-04-molecula

A geological timescale for bacterial #evolution and oxygen adaptation science.org/doi/10.1126/scienc

"the earliest aerobic transition occurred in an ancestor of photosynthetic #cyanobacteria, indicating that the ability to utilize trace amounts of oxygen may have allowed the development of genes central to oxygenic #photosynthesis."

Illustration of chains of green bacteria and geologic layers
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