Emerging Interaction Patterns in the Emiliania huxleyi-EhV System.
Viruses are thought to be fundamental in driving microbial diversity in the oceanic planktonic realm. That role and associated emerging infection patterns remain particularly elusive for eukaryotic phytoplankton and their viruses. Here we used a vast number of strains from the model systemEmiliania huxleyi/Emiliania huxleyi Virus to quantify parameters such as growth rate (µ), resistance (R), and viral production (Vp) capacities. Algal and viral abundances were monitored by flow cytometry during 72-h incubation experiments. The results pointed out higher viral production capacity in generalist EhV strains, and the virus-host infection network showed a strong co-evolution pattern betweenE. huxleyiand EhV populations. The existence of a trade-off between resistance and growth capacities was not confirmed.
Department of Biology, University of Bergen, Bergen 5006, Norway. Eliana.Martinez@uib.no.
Eliana
E
Ruiz
Department of Biology, University of Bergen, Bergen 5006, Norway. Ruth.Sandaa@uib.no.|NRL for fish, Shellfish and Crustacean Diseases, Central Veterinary Institute of Wageningen UR, Lelystad 8221 RA, The Nederlands. Ruth.Sandaa@uib.no.
Monique
M
Oosterhof
Department of Biology, University of Bergen, Bergen 5006, Norway. Antonio.Pagarete@uib.no.
Ruth-Anne
RA
Sandaa
Department of Biology, University of Bergen, Bergen 5006, Norway. Aud.Larsen@uni.no.|Uni Research Environment, Nygårdsgaten 112, Bergen 5008, Norway. Aud.Larsen@uni.no.
Aud
A
Larsen
Department of Biology, University of Bergen, Bergen 5006, Norway.
António
A
Pagarete
D002452:Cell Count; D005434:Flow Cytometry; D058087:Haptophyta / Q000821:virology*; D006790:Host-Parasite Interactions; D017862:Phycodnaviridae / Q000254:growth & development*; D010839:Phytoplankton / Q000821:virology*; D019562:Viral Load
Coccolithophore; Coccolithovirus; Haptophyta; Killing-the-winner; Phycodnaviridae; algae virus; cost of resistance; infectivity trade-offs; marine viral ecology; viral-host interactions