%0 Journal Article %T Virus-to-prokaryote ratio in spring waters along a gradient of natural radioactivity %+ Laboratoire Microorganismes : Génome et Environnement (LMGE) %+ Laboratoire de Géographie Physique et Environnementale (GEOLAB) %+ Laboratoire de Physique de Clermont (LPC) %+ Laboratoire de physique subatomique et des technologies associées (SUBATECH) %+ Institut de Chimie de Nice (ICN) %A Baker, Lory-Anne %A Biron, David, G %A Beauger, Aude %A Kolovi, Sofia %A Colombet, Jonathan %A Allain, Elisabeth %A Voldoire, Olivier %A Breton, Vincent %A Chardon, Patrick %A Sime-Ngando, Télesphore %A David, Karine %A Montavon, Gilles, F %A Michel, Hervé %A Angia Sriram, Pradeep Ram %< avec comité de lecture %@ 0018-8158 %J Hydrobiologia %I Springer %V 850 %N Mars 2023 %P 1109-1121 %8 2023-01-31 %D 2023 %R 10.1007/s10750-023-05146-1 %K viruses %K prokaryotes %K virus to prokaryote ratio %K mineral springs %K naturally enhanced radioactivity %K extreme environment %Z Life Sciences [q-bio]/Microbiology and Parasitology %Z Environmental Sciences/Biodiversity and EcologyJournal articles %X Although a strong link between viruses and prokaryotes is commonly known to exist in aquatic systems, few studies have investigated their relationship in spring waters. In the French Massif Central, certain springs are known to exhibit varying levels of naturally occurring radioactivity. Therefore, the aim of this study was to examine the standing stock of viruses together with prokaryotes, and determine the potential environmental factors influencing them in springs characterized by contrasted radioactivity gradient. Among the investigated 15 spring habitats, flow cytometry analyses indicated that both viral (VA) and prokaryotic abundances (PA) varied by an order of magnitude accompanied by virus-to-prokaryote ratio ranging between 8 and 144.2. Significant differences in VA was evident among springs where low abundances (mean ± SD: 21.3 ± 7.0 x 107 VLP l-1) corresponded to high (mean ± SD: 1911 ± 814.0 nGy.h-1) gamma (γ) dose radiation (222Rn) and vice versa. Adverse effect of water radioactivity (222Rn) on VA could perhaps corroborate our hypothesis of drastic effect of ionizing radiations on viruses, which might explain for lack of significant relationship between PA and VA. In such a scenario of prevailing low VA, the adopted phage life strategies could define their existence in these specialized ecosystems. %G English %2 https://hal.science/hal-03979377/document %2 https://hal.science/hal-03979377/file/Baker_Viruses_HAL.pdf %L hal-03979377 %U https://hal.science/hal-03979377 %~ IN2P3 %~ SDE %~ UNICE %~ UNILIM %~ INSTITUT-TELECOM %~ MINES-NANTES %~ PRES_CLERMONT %~ LPC-CLERMONT %~ SUBATECH %~ CNRS %~ UNIV-BPCLERMONT %~ GEOLAB %~ LMGE %~ GIP-BE %~ SUB %~ ACL-SVSAE %~ INC-CNRS %~ IR-SHS %~ UNIV-COTEDAZUR %~ IMTA_SUBATECH %~ IMT-ATLANTIQUE %~ GEOLAB-DGA %~ INSTITUTS-TELECOM %~ INSTITUT-CHIMIE-NICE %~ NANTES-UNIVERSITE %~ NANTES-UNIV %~ TEST2-HALCNRS %~ TEST3-HALCNRS