Characterisation of three novel giant viruses reveals huge diversity among viruses infecting Prymnesiales (Haptophyta)

被引：35

作者：

Johannessen, Torill Vik ^{[1
]}

Bratbak, Gunnar ^{[1
]}

Larsen, Aud ^{[2
]}

Ogata, Hiroyuki ^{[3
]}

Egge, Elianne S. ^{[4
]}

Edvardsen, Bente ^{[4
]}

Eikrem, Wenche ^{[4
]}

Sandaa, Ruth-Anne ^{[1
]}

机构：

[1] Univ Bergen, Dept Biol, N-5020 Bergen, Norway

[2] Uni Res Environm Thormohlensgt, N-5006 Bergen, Norway

[3] Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan

[4] Univ Oslo, Dept Biosci, N-0316 Oslo, Norway

来源：

VIROLOGY | 2015年 / 476卷

基金：

欧洲研究理事会;

关键词：

Marine; Virus; Algae; Phycodnaviridae; Mimiviridae; NCLDV; Prymnesiophyte; Haptophyta; Diversity; 18S RDNA SEQUENCES; LARGE DNA VIRUSES; PHYLOGENETIC ANALYSIS; PHAEOCYSTIS-GLOBOSA; POPULATION-DYNAMICS; GEL-ELECTROPHORESIS; MIMIVIRUS RELATIVES; ENGLISH-CHANNEL; VIRAL MORTALITY; FLOW-CYTOMETRY;

D O I：

10.1016/j.virol.2014.12.014

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

We have isolated three novel lytic dsDNA-viruses from Raunefjorden (Norway) that are putative members of the Mimiviridae family, namely Haptolina ericina virus RF02 (Hey RF02), Piymnesium kappa virus RF01 (PkV RF01), and Prymnesium kappa virus RF02 (PkV RF02). Each of the novel haptophyte viruses challenges the common conceptions of algal viruses with respect to host range, phylogenetic affiliation and size. PkV RF01 has a capsid of similar to 310 nm and is the largest algal virus particle ever reported while PkV RF01 and HeV RF02 were able to infect different species, even belonging to different genera. Moreover, PkV RF01 and Hey RF02 infected the same hosts, but phylogenetic analysis placed them in different groups. Our results reveal large variation among viruses infecting closely related microalgae, and challenge the common conception that algal viruses have narrow host range, and phylogeny reflecting their host affiliation. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：180 / 188

页数：9

共 82 条

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