The Effect of Zero-Valent Iron Nanoparticles (nZVI) on Bacteriophages

Raza, Sada; Folga, Michał; Łoś, Marcin; Foltynowicz, Zenon; Paczesny, Jan

doi:10.3390/v14050867

Cited by 7 publications

(3 citation statements)

References 72 publications

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“…The inactivating effect of 1 mg/ml of Fe 3+ ions on various unrelated phages was previously noticed by Raza et al (2022). Similar, but weaker activity of 5 mM Cu 2+ ions, was observed against dsDNA phages by Li and Dennehy (2011).…”

Section: Phage Stabilitysupporting

confidence: 79%

Genome, biology and stability of the Thurquoise phage – A new virus from the Bastillevirinae subfamily

Węglewska

Barylski²,

Wojnarowski³

et al. 2023

Front. Microbiol.

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Bacteriophages from the Bastillevirinae subfamily (Herelleviridae family) have proven to be effective against bacteria from the Bacillus genus including organisms from the B. cereus group, which cause food poisoning and persistent contamination of industrial installations. However, successful application of these phages in biocontrol depends on understanding of their biology and stability in different environments. In this study, we isolated a novel virus from garden soil in Wrocław (Poland) and named it ‘Thurquoise’. The genome of that phage was sequenced and assembled into a single continuous contig with 226 predicted protein-coding genes and 18 tRNAs. The cryo-electron microscopy revealed that Thurquoise has complex virion structure typical for the Bastillevirinae family. Confirmed hosts include selected bacteria from the Bacillus cereus group–specifically B. thuringiensis (isolation host) and B. mycoides, but susceptible strains display different efficiency of plating (EOP). The eclipse and latent periods of Thurquoise in the isolation host last ~ 50 min and ~ 70 min, respectively. The phage remains viable for more than 8 weeks in variants of the SM buffer with magnesium, calcium, caesium, manganese or potassium and can withstand numerous freeze–thaw cycles if protected by the addition of 15% glycerol or, to a lesser extent, 2% gelatine. Thus, with proper buffer formulation, this virus can be safely stored in common freezers and refrigerators for a considerable time. The Thurquoise phage is the exemplar of a new candidate species within the Caeruleovirus genus in the Bastillevirinae subfamily of the Herelleviridae family with a genome, morphology and biology typical for these taxa.

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Section: Phage Stabilitysupporting

confidence: 79%

Genome, biology and stability of the Thurquoise phage – A new virus from the Bastillevirinae subfamily

Węglewska

Barylski²,

Wojnarowski³

et al. 2023

Front. Microbiol.

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“…The most investigated NPs are based on metals, e.g., silver, copper oxide, and titanium dioxide. Nanoparticles might act via three distinct mechanisms: (i) adsorbing on the surface and destabilizing the protein structure, (ii) releasing ions, and (iii) generating reactive oxygen species [ 150 ]. The same mechanisms are also valid while considering the antibacterial properties of nanoparticles.…”

Section: Future Outlook: New Antiphagentsmentioning

confidence: 99%

“…It was also observed that the higher the concentration of iron ions, the more phages are inactivated [ 157 ]. Another interesting example was the zero-valent iron particles [ 150 ].…”

Section: Future Outlook: New Antiphagentsmentioning

confidence: 99%

Bacteriophage Challenges in Industrial Processes: A Historical Unveiling and Future Outlook

Kamiński,

Paczesny

2024

Pathogens

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Humans have used fermentation processes since the Neolithic period, mainly to produce beverages. The turning point occurred in the 1850s, when Louis Pasteur discovered that fermentation resulted from the metabolism of living microorganisms. This discovery led to the fast development of fermented food production. The importance of industrial processes based on fermentation significantly increased. Many branches of industry rely on the metabolisms of bacteria, for example, the dairy industry (cheese, milk, yogurts), pharmaceutical processes (insulin, vaccines, antibiotics), or the production of chemicals (acetone, butanol, acetic acid). These are the mass production processes involving a large financial outlay. That is why it is essential to minimize threats to production. One major threat affecting bacteria-based processes is bacteriophage infections, causing substantial economic losses. The first reported phage infections appeared in the 1930s, and companies still struggle to fight against phages. This review shows the cases of phage infections in industry and the most common methods used to prevent phage infections.

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Antagonistic effect of the beneficial bacterium Enterobacter hormaechei against the heavy metal Cu2+ in housefly larvae

Yin,

Wang,

et al. 2024

Ecotoxicology and Environmental Safety

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The Effect of Zero-Valent Iron Nanoparticles (nZVI) on Bacteriophages

Cited by 7 publications

References 72 publications

Genome, biology and stability of the Thurquoise phage – A new virus from the Bastillevirinae subfamily

Genome, biology and stability of the Thurquoise phage – A new virus from the Bastillevirinae subfamily

Bacteriophage Challenges in Industrial Processes: A Historical Unveiling and Future Outlook

Antagonistic effect of the beneficial bacterium Enterobacter hormaechei against the heavy metal Cu2+ in housefly larvae

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