Ocean Acidification Induces Changes in Virus–Host Relationships in Mediterranean Benthic Ecosystems

Acidified marine systems represent “natural laboratories”, which provide opportunities to investigate the impacts of ocean acidification on different living components, including microbes. Here, we compared the benthic microbial response in four naturally acidified sites within the Southern Tyrrheni...

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Main Authors: Michael Tangherlini, Cinzia Corinaldesi, Francesca Ape, Silvestro Greco, Teresa Romeo, Franco Andaloro, Roberto Danovaro
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/9/4/769
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author Michael Tangherlini
Cinzia Corinaldesi
Francesca Ape
Silvestro Greco
Teresa Romeo
Franco Andaloro
Roberto Danovaro
author_facet Michael Tangherlini
Cinzia Corinaldesi
Francesca Ape
Silvestro Greco
Teresa Romeo
Franco Andaloro
Roberto Danovaro
author_sort Michael Tangherlini
collection DOAJ
description Acidified marine systems represent “natural laboratories”, which provide opportunities to investigate the impacts of ocean acidification on different living components, including microbes. Here, we compared the benthic microbial response in four naturally acidified sites within the Southern Tyrrhenian Sea characterized by different acidification sources (i.e., CO<sub>2</sub> emissions at Ischia, mixed gases at Panarea and Basiluzzo and acidified freshwater from karst rocks at Presidiana) and pH values. We investigated prokaryotic abundance, activity and biodiversity, viral abundance and prokaryotic infections, along with the biochemical composition of the sediment organic matter. We found that, despite differences in local environmental dynamics, viral life strategies change in acidified conditions from mainly lytic to temperate lifestyles (e.g., chronic infection), also resulting in a lowered impact on prokaryotic communities, which shift towards (chemo)autotrophic assemblages, with lower organic matter consumption. Taken together, these results suggest that ocean acidification exerts a deep control on microbial benthic assemblages, with important feedbacks on ecosystem functioning.
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spelling doaj.art-933e9dd0297f4439b892e6da256763ae2023-11-21T14:26:38ZengMDPI AGMicroorganisms2076-26072021-04-019476910.3390/microorganisms9040769Ocean Acidification Induces Changes in Virus–Host Relationships in Mediterranean Benthic EcosystemsMichael Tangherlini0Cinzia Corinaldesi1Francesca Ape2Silvestro Greco3Teresa Romeo4Franco Andaloro5Roberto Danovaro6Fano Marine Centre, Department of Research Infrastructures for Marine Biological Resources, Stazione Zoologica Anton Dohrn, Viale Adriatico 1-N, 61032 Fano, ItalyDepartment of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyInstitute of Anthropic Impacts and Sustainability in Marine Environment-National Research Council (IAS-CNR), Lungomare Cristoforo Colombo n. 4521 (ex Complesso Roosevelt), Località Addaura, 90149 Palermo, ItalyDepartment of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Via Po 25c, 00198 Rome, ItalySicily Marine Centre, Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Via dei Mille 46, 98057 Milazzo, ItalySicily Marine Centre, Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Via dei Mille 46, 98057 Milazzo, ItalyDepartment of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, ItalyAcidified marine systems represent “natural laboratories”, which provide opportunities to investigate the impacts of ocean acidification on different living components, including microbes. Here, we compared the benthic microbial response in four naturally acidified sites within the Southern Tyrrhenian Sea characterized by different acidification sources (i.e., CO<sub>2</sub> emissions at Ischia, mixed gases at Panarea and Basiluzzo and acidified freshwater from karst rocks at Presidiana) and pH values. We investigated prokaryotic abundance, activity and biodiversity, viral abundance and prokaryotic infections, along with the biochemical composition of the sediment organic matter. We found that, despite differences in local environmental dynamics, viral life strategies change in acidified conditions from mainly lytic to temperate lifestyles (e.g., chronic infection), also resulting in a lowered impact on prokaryotic communities, which shift towards (chemo)autotrophic assemblages, with lower organic matter consumption. Taken together, these results suggest that ocean acidification exerts a deep control on microbial benthic assemblages, with important feedbacks on ecosystem functioning.https://www.mdpi.com/2076-2607/9/4/769ocean acidificationbiodiversityecosystem functioningprokaryotesmetabarcodingviral impact
spellingShingle Michael Tangherlini
Cinzia Corinaldesi
Francesca Ape
Silvestro Greco
Teresa Romeo
Franco Andaloro
Roberto Danovaro
Ocean Acidification Induces Changes in Virus–Host Relationships in Mediterranean Benthic Ecosystems
Microorganisms
ocean acidification
biodiversity
ecosystem functioning
prokaryotes
metabarcoding
viral impact
title Ocean Acidification Induces Changes in Virus–Host Relationships in Mediterranean Benthic Ecosystems
title_full Ocean Acidification Induces Changes in Virus–Host Relationships in Mediterranean Benthic Ecosystems
title_fullStr Ocean Acidification Induces Changes in Virus–Host Relationships in Mediterranean Benthic Ecosystems
title_full_unstemmed Ocean Acidification Induces Changes in Virus–Host Relationships in Mediterranean Benthic Ecosystems
title_short Ocean Acidification Induces Changes in Virus–Host Relationships in Mediterranean Benthic Ecosystems
title_sort ocean acidification induces changes in virus host relationships in mediterranean benthic ecosystems
topic ocean acidification
biodiversity
ecosystem functioning
prokaryotes
metabarcoding
viral impact
url https://www.mdpi.com/2076-2607/9/4/769
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