Vermamoeba Vermiformis
Vermamoeba Vermiformis - Related Videos
09:27
A Rapid Strategy for the Isolation of New Faustoviruses from Environmental Samples Using Vermamoeba vermiformis
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Cited by 15 •
2016
We describe here the latest advances in viral isolation for the characterization of new genotypes of Faustovirus, a new asfarvirus-related lineage of giant viruses. This protocol can be applied to the high throughput isolation of viruses, especially giant viruses infecting amoeba.
09:50
Single Cell Micro-aspiration as an Alternative Strategy to Fluorescence-activated Cell Sorting for Giant Virus Mixture Separation
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Cited by 5 •
2019
Here, we describe a single cell micro-aspiration method for the separation of infected amoebae. In order to separate viral subpopulations in Vermamoeba vermiformis infected by Faustoviruses and unknown giant viruses, we developed the protocol detailed below and demonstrated its ability to separate two low-abundance novel giant viruses.
03:25
Amoeba-Based Enrichment of Giant Viruses from an Environmental Water Sample
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2026
Source: Bou Khalil, J. Y.,et al. A Rapid Strategy for the Isolation of New Faustoviruses from Environmental Samples Using Vermamoeba vermiformis. J. Vis. Exp. (2016)This video demonstrates the enrichment of giant viruses from an environmental water sample using amoeba-based co-culture to enable downstream detection and analysis.
04:12
Isolation of a Single Giant Virus from a Mixed Viral Population Using Amoebae
0 Views •
2026
Source: Sahmi-Bounsiar, D. et al. Single Cell Micro-aspiration as an Alternative Strategy to Fluorescence-activated Cell Sorting for Giant Virus Mixture Separation. J. Vis. Exp. (2019)This video demonstrates single-cell micro-aspiration to isolate and expand a single giant virus population from a mixed viral population using amoebae as host cells.
FAQs
The feeding stage captures bacteria by phagocytosis, meaning it engulfs them into the cell. Some bacteria, including Legionella, can use the amoeba as an intracellular habitat rather than remaining only in the surrounding water. This relationship gives researchers a way to examine how amoebal feeding behavior intersects with bacterial persistence in engineered water systems.
Environmental stress changes the amoeba’s state: active trophozoites form environmentally resistant cysts when conditions become unfavorable. This transition separates active movement and feeding from a more durable survival form. Studying when these stages occur helps explain how V. vermiformis may remain present as water or soil conditions change.
Trophozoite movement through water films places feeding activity within the thin water layers found in relevant environments. Because these cells can encounter and engulf bacteria while moving, their behavior connects physical water conditions with microbial interactions. This provides a biological perspective on how local movement may influence contact between the amoeba and bacterial communities.
A study can compare active trophozoites and resistant cysts while examining their association with bacteria in soil, freshwater, or engineered water systems. Researchers can then interpret the findings across feeding, survival, and microbial-interaction contexts. Keeping these components together helps connect cellular behavior with the broader ecology of environments where V. vermiformis occurs.
This organism is relevant to water-system ecology because its interactions with bacteria can affect how microorganisms persist in engineered networks. It also matters to public-health research when intracellular shelter for bacteria such as Legionella may influence their survival and potential transmission. The topic therefore links environmental biology with microbial persistence in managed water environments.
In biology, V. vermiformis supports examination of relationships between a free-living amoeba and bacterial partners. Its study brings together amoebal life-stage changes, phagocytosis, intracellular habitation, and environmental survival. These connections make it useful for investigating microbial survival mechanisms rather than treating bacteria and their habitats as separate subjects.