michaelSep 26

24-Sep-2025
Trojan Horse in #Water: #Amoebae as carriers for human #Norovirus and #Adenovirus

https://www.eurekalert.org/news-releases/1099578

#science #ecology #publicHealth

Trojan Horse in Water: Amoebae as carriers for human Norovirus and Adenovirus

In a new study titled “Enteric Viruses and Free-Living Amoebae: Protozoa as Potential Reservoirs and Transport Vessels for human Norovirus and Adenovirus,” published in Water & Ecology, an international team of researchers demonstrated that human norovirus (HNoV) and adenovirus (HAdV) can reside within environmental free-living amoebae (FLA) for up to 12 days. Viruses remained infectious within amoebae while encapsulated, protected from amoebal digestion and structural degradation. The detection of HAdV mRNA further suggests possible viral replication. These findings indicate that FLA may serve as environmental reservoirs and transmission vessels for enteric viruses—challenging the current water treatment efficacy and underscoring the need for updated public health guidance.

EurekAlert!
Draws_Shoots_And_LeavesJul 1
#amoeba #amoebida #amoebae #amoebas any of the microscopic unicellular protozoans of the #rhizopodan order Amoeba. Each amoeba contains a small mass of jellylike #cytoplasm which is differentiated into a thin other plasma #membrane, a layer of stiff clear #ectoplasm just within the plasma membrane, and a central granular #endoplasm
#sketchbook #pixelfedart #mastoart
Academic EuropeMay 23

Job - Alert 📢

👉🏼 RESEARCH ASSISTANT / PHD STUDENT (ALL GENDERS) - CELL BIOLOGY OF THE VAMPIRE AMOEBAE

Deadline: 2025-06-15
Location: Germany, Darmstadt, Hessen

🔗 https://www.academiceurope.com/job/?id=7426

#hiring #PhD #CellBiology #Protists #Amoebae #ElectronMicroscopy #LifeSciences #biology

Leibniz-HKIApr 3
🦠#Microbes are in a constant battle for survival! Researchers from @LeibnizHKI @unijena @microverse_exc @unibayreuth discovered how the plant pathogen Pseudomonas syringae uses a chemical radar to detect and eliminate predatory #amoebae .The #bacteria produce harmless molecules that the amoebae modify, revealing their presence. P. syringae detects this and produces toxic substances to eliminate the predator. This mechanism could inspire new drugs and pest control strategies! 💊 @dfg_public #EFRE
Lukas VFN 🇪🇺Dec 14, 2024

This #amoeba eats prey like #owls do https://www.sciencenews.org/article/amoeba-eats-removes-shell

The vampyrellid amoeba #Strigomyxa ruptor gen. et sp. nov. and its remarkable strategy to acquire algal cell contents https://onlinelibrary.wiley.com/doi/10.1002/ece3.70191

"The microscopic predator engulfs #algae, drains the cells and spits out the shell"

#Protists #Amoebae #Microbes #Biology

This amoeba eats prey like owls do

Meet the ‘owl slime’ amoeba, which drains its prey and spits out the shell.

Science News
Lukas VFN 🇪🇺Dec 12, 2024

It's time to consider the Arcellinida shell as a weapon https://www.isep-protists.com/post/arcellinida-shell-weapon

"why is there such a large morphological diversity in shell-bearing #amoebae and what is the function of shells anyway? We knew for a long time that #Arcellinida are masters of the #cytoskeleton as they use it to build their elaborate shells. It was unknown that they use both, the cytoskeleton and shell, in combination to function as small apex #predators in their systems."

#Protists #ISEPpapers #Microbes

It's time to consider the Arcellinida shell as a weapon

Did you ever wonder why there is such a large morphological diversity in shell-bearing amoebae and what is the function of shells anyway?

ISEP
ISEPDec 11, 2024

It's time to consider the Arcellinida shell as a weapon https://www.isep-protists.com/post/arcellinida-shell-weapon #ISEPpapers by Kenneth Dumack et al.: https://www.sciencedirect.com/science/article/pii/S0932473924000014

"why there is such a large morphological diversity in shell-bearing #amoebae and what is the function of shells anyway? It was long assumed shells are for defense, well let me try to convince you that their purpose is attack"

#protists #microbes #biology #predators #fungi #algae #diatoms #microscopy

It's time to consider the Arcellinida shell as a weapon

Did you ever wonder why there is such a large morphological diversity in shell-bearing amoebae and what is the function of shells anyway?

ISEP
Lukas VFN 🇪🇺Oct 27, 2024

Bacteria & Fungi Come Together in Endosymbiosis Study https://www.labroots.com/trending/cell-and-molecular-biology/27876/bacteria-fungi-endosymbiosis-study

Inducing novel #endosymbioses by implanting bacteria in fungi https://www.nature.com/articles/s41586-024-08010-x

"After several generations, the health of the #fungi began to improve. They were changing and adapting to their new resident #bacteria. The bacteria also changed. Both bacterial and fungal cells were found to produce molecules that helped the fungi collect nutrients and battle predators like #amoebae or #nematodes."

Bacteria & Fungi Come Together in Endosymbiosis Study | Cell And Molecular Biology

Endosymbiotic organisms have to live inside of another to survive, and this relationship often provides benefits for both the host and its resident. | Cell And Molecular Biology

Labroots
michaelOct 5, 2024

4-Oct-2024
Life on Earth was more diverse than classical theory suggests 800 million years ago, a Brazilian study shows

According to an article published in the journal PNAS, different lineages of #amoebae and ancestors of #plants, #algae and animals were already established in the #Neoproterozoic period and survived the two glaciations that covered the entire planet.

https://www.eurekalert.org/news-releases/1060345

#science #evolution #SnowballEarth

Life on Earth was more diverse than classical theory suggests 800 million years ago, a Brazilian study shows

According to an article published in the journal PNAS, different lineages of amoebae and ancestors of plants, algae and animals were already established in the Neoproterozoic period and survived the two glaciations that covered the entire planet.

EurekAlert!
Lukas VFN 🇪🇺May 6, 2024

Biologists study trade-offs of microscopic predators https://phys.org/news/2024-05-biologists-offs-microscopic-predators.html

Costs of being a diet generalist for the #protist predator #Dictyostelium discoideum https://www.pnas.org/doi/10.1073/pnas.2313203121

"The #amoebae prey on a very diverse group of #bacteria. But when they switch from one bacteria to another, there's a physiological cost."

#protists #microbes #ecology #predation #biology #amoeba #SlimeMolds

Biologists study trade-offs of microscopic predators

The drama of predators vs. prey—hunting, stalking, fleeing—isn't limited to the animal kingdom. Underneath our feet, hungry amoebae in the soil pursue and eat bacteria in a microscopic wild kingdom. But being a predator has its own costs, and that's as true for amoebae as it is for lions or wolves.

Phys.org