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Viruses 2018, 10(9), 474; https://doi.org/10.3390/v10090474

Why Are Algal Viruses Not Always Successful?

1
Community Dynamics Group, Max-Planck for Evolutionary Biology, 24306 Plön, Germany
2
Limnology-Aquatic Ecology and Evolution, Limnological Institute, University of Konstanz, 78464 Konstanz, Germany
3
Department of Microbial Population Biology, Max-Planck for Evolutionary Biology, 24306 Plön, Germany
*
Author to whom correspondence should be addressed.
Received: 30 July 2018 / Revised: 31 August 2018 / Accepted: 2 September 2018 / Published: 5 September 2018
(This article belongs to the Special Issue Algae Virus)
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Abstract

Algal viruses are considered to be key players in structuring microbial communities and biogeochemical cycles due to their abundance and diversity within aquatic systems. Their high reproduction rates and short generation times make them extremely successful, often with immediate and strong effects for their hosts and thus in biological and abiotic environments. There are, however, conditions that decrease their reproduction rates and make them unsuccessful with no or little immediate effects. Here, we review the factors that lower viral success and divide them into intrinsic—when they are related to the life cycle traits of the virus—and extrinsic factors—when they are external to the virus and related to their environment. Identifying whether and how algal viruses adapt to disadvantageous conditions will allow us to better understand their role in aquatic systems. We propose important research directions such as experimental evolution or the resurrection of extinct viruses to disentangle the conditions that make them unsuccessful and the effects these have on their surroundings. View Full-Text
Keywords: stressors; algal viruses; intrinsic and extrinsic factors; viral life cycle traits; temperature; sunlight; effects; latent period; burst size; host resistance stressors; algal viruses; intrinsic and extrinsic factors; viral life cycle traits; temperature; sunlight; effects; latent period; burst size; host resistance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Horas, E.L.; Theodosiou, L.; Becks, L. Why Are Algal Viruses Not Always Successful? Viruses 2018, 10, 474.

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