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Characterization and Temperature Dependence of Arctic Micromonas polaris Viruses
- Source :
- Viruses, 9(6). Multidisciplinary Digital Publishing Institute (MDPI), Viruses; Volume 9; Issue 6; Pages: 134, Viruses, Viruses, 9, 6, pp. E134-E134, Viruses, 9, E134-E134
- Publication Year :
- 2017
-
Abstract
- Contains fulltext : 174127.pdf (Publisher’s version ) (Open Access) Global climate change-induced warming of the Artic seas is predicted to shift the phytoplankton community towards dominance of smaller-sized species due to global warming. Yet, little is known about their viral mortality agents despite the ecological importance of viruses regulating phytoplankton host dynamics and diversity. Here we report the isolation and basic characterization of four prasinoviruses infectious to the common Arctic picophytoplankter Micromonas. We furthermore assessed how temperature influenced viral infectivity and production. Phylogenetic analysis indicated that the putative double-stranded DNA (dsDNA) Micromonas polaris viruses (MpoVs) are prasinoviruses (Phycodnaviridae) of approximately 120 nm in particle size. One MpoV showed intrinsic differences to the other three viruses, i.e., larger genome size (205 +/- 2 vs. 191 +/- 3 Kb), broader host range, and longer latent period (39 vs. 18 h). Temperature increase shortened the latent periods (up to 50%), increased the burst size (up to 40%), and affected viral infectivity. However, the variability in response to temperature was high for the different viruses and host strains assessed, likely affecting the Arctic picoeukaryote community structure both in the short term (seasonal cycles) and long term (global warming).
- Subjects :
- 0301 basic medicine
food.ingredient
Micromonas virus
prasinovirus
Virus Replication
Arctic algal viruses
Article
03 medical and health sciences
food
Chlorophyta
Virology
Tumours of the digestive tract Radboud Institute for Molecular Life Sciences [Radboudumc 14]
Dominance (ecology)
Phycodnaviridae
Genome size
Micromonas
virus-host interactions
Picoeukaryote
biology
Ecology
Arctic Regions
infectivity
Temperature
temperature
biology.organism_classification
Prasinovirus
climate change
030104 developmental biology
Infectious Diseases
Viral replication
Arctic
13. Climate action
DNA, Viral
Subjects
Details
- Language :
- English
- ISSN :
- 19994915
- Database :
- OpenAIRE
- Journal :
- Viruses, 9(6). Multidisciplinary Digital Publishing Institute (MDPI), Viruses; Volume 9; Issue 6; Pages: 134, Viruses, Viruses, 9, 6, pp. E134-E134, Viruses, 9, E134-E134
- Accession number :
- edsair.doi.dedup.....0ac7eda8f4a74ce3cf08a7eade4e54ce