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Title:Discovery of novel and known viruses associated with toxigenic and non-toxigenic bloom forming diatoms from the Northern Adriatic Sea
Authors:ID Turk Dermastia, Timotej (Author)
ID Kutnjak, Denis (Author)
ID Gutiérrez-Aguirre, Ion (Author)
ID Brussaard, Corina P. D. (Author)
ID Bačnik, Katarina (Author)
Files:URL URL - Source URL, visit https://doi.org/10.1016/j.hal.2024.102737
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo NIB - National Institute of Biology
Abstract:Algal blooms impact trophic interactions, community structure and element fluxes. Despite playing an important role in the demise of phytoplankton blooms, only few viruses infecting diatoms have been cultured. Pseudo-nitzschia is a widespread diatom genus that commonly blooms in coastal waters and contains toxin-producing species. This study describes the characterization of a novel virus infecting the toxigenic species Pseudo-nitzschia galaxiae isolated from the northern Adriatic Sea. The ssRNA virus PnGalRNAV has 29.5 nm ± 1.2 nm icosahedral virions and a genome size of 8.8 kb. It belongs to the picorna-like Marnaviridae family and shows high specificity for P. galaxiae infecting two genetically and morphologically distinct strains. We found two genetically distinct types of this virus and screening of the global virome database revealed matching sequences from the Mediterranean region and China, suggesting its global distribution. Another virus of similar shape and size infecting Pseudo-nitzschia calliantha was found, but its genome could not be determined. In addition, we have obtained and characterized a new virus that infects Chaetoceros tenuissimus. The replicase protein of this virus is very similar to the previously described ChTenDNAV type-II virus, but it has a unique genome and infection pattern. Our study is an important contribution to the collective diatom virus culture collection and will allow further investigation into how these viruses control diatom bloom termination, carbon export and toxin release in the case of Pseudo-nitzschia.
Keywords:algal blooms, diatoms, virus, PnGalRNAV, genome, Adriatic Sea, marine virology, phytoplankton ecology, marine biology
Publication status:Submitted to the publisher
Publication version:Submitted Version
Publication date:15.10.2024
Year of publishing:2024
Numbering:[Art. no.] ǂ102737
PID:20.500.12556/DiRROS-20575 New window
UDC:574
ISSN on article:1568-9883
DOI:10.1016/j.hal.2024.102737 New window
COBISS.SI-ID:212651523 New window
Note:Ostali soavtorji: Denis Kutnjak, Ion Gutierrez-Aguirre, Corina P. D. Brussaard, Katarina Bačnik; Online first: 15 Oct. 2024; Članek v PDF formatu obsega 44 str.;
Publication date in DiRROS:23.10.2024
Views:11
Downloads:7
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Record is a part of a journal

Title:Harmful algae
Publisher:Elsevier
ISSN:1568-9883
COBISS.SI-ID:512209945 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0237-2020
Name:Raziskave obalnega morja

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P4-0407-2019
Name:Okoljska in aplikativna virologija: virusi, prijatelji in sovražniki

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P4-0165-2022
Name:Biotehnologija in sistemska biologija rastlin

Funder:ARIS - Slovenian Research and Innovation Agency
Funding programme:postdoctoral grant
Project number:01Z14396

Funder:EC - European Commission
Funding programme:FP7
Project number:211372
Name:Life Watch
Acronym:LIFEWATCH

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

Language:Slovenian
Keywords:cvetenje alg, diatomeje, virus, genom, Jadransko morje, morska virologija, ekologija fitoplanktona, morska biologija, Pseudo-nitzschia, Chaetoceros, Marnaviridae


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