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The metastable associations of bacteriophages and Erwinia amylovora

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Abstract

Bacteriophages are often considered as possible agents of biological control of unwanted bacterial populations in medicine, agriculture and food industry. Although the virulent phages can efficiently kill the infected host cells but at the population level phage attack not always leads to the host population collapse but may result in establishment of a more or less stable co-existence. The mechanism of the long-term stabilization of the mixed phage-host cultures is poorly understood. Here we describe bacteriophages VyarbaL and Hena2, the members of the Molineuxvirinae and the Ounavirinae subfamilies, respectively, that are able to form the pseudolysogenic associations (PA) with their host Erwinia amylovora 1/79Sm on solid media. These PAs were stable through multiple passages. The phenomenon of the PA formation between a bacterial culture and bacteriophages decreases the effectiveness of bacteriophage-mediated biological control agents based on lytic bacteriophages.

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All data that support the findings of the phage and bacterial culture associations study are included within this paper and its Supplementary Information files.

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Funding

The work of N.V. Besarab, A.L. Lagonenko and A.N. Evtushenkov was partially supported by Ministry of education of Belarus (project no. 20211371).

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All authors contributed to the study conception and design, all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Natalya V. Besarab.

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The authors declare that they have no conflict of interest. The authors report no relevant financial or non-financial interests to disclose.

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This article does not contain any studies with human participants or animals performed by any of the authors.

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Communicated by Yusuf Akhter.

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Besarab, N.V., Letarova, M.A., Babenko, V.V. et al. The metastable associations of bacteriophages and Erwinia amylovora. Arch Microbiol 205, 214 (2023). https://doi.org/10.1007/s00203-023-03550-8

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  • DOI: https://doi.org/10.1007/s00203-023-03550-8

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