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Provera I, Martinez M, Zenone A, Giacalone VM, D'Anna G, Badalamenti F, Marín-Guirao L, Procaccini G. Exploring priming strategies to improve stress resilience of Posidonia oceanica seedlings. MARINE POLLUTION BULLETIN 2024; 200:116057. [PMID: 38301434 DOI: 10.1016/j.marpolbul.2024.116057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/12/2024] [Accepted: 01/14/2024] [Indexed: 02/03/2024]
Abstract
Seagrasses' ability to store information after exposure to stress (i.e. stress memory) and to better respond to further stress (i.e. priming) have recently been observed, although the temporal persistence of the memory and the mechanisms for priming induction remain to be defined. Here, we explored three priming strategies in Posidonia oceanica seedlings, each inducing a different level of stress, for temperature and salinity. We investigated changes in morphometry, growth rate and biomass between primed and non-primed seedlings. The results showed similar behaviour of seedlings when exposed to an acute stress event, regardless of whether they had been primed or not and of the priming strategy received. This opens the debate on the level of stress necessary for inducing a priming status and the persistence of the stress memory in P. oceanica seedlings. Although no priming-induced stress resistance was observed, seedlings showed unexpectedly high resilience to extreme levels of both abiotic stressors.
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Affiliation(s)
- I Provera
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy.
| | - M Martinez
- Institute 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, Italy
| | - A Zenone
- Stazione Zoologica Anton Dohrn, Lungomare Cristoforo Colombo 4521, 90149 Palermo, Italy; National Biodiversity Future Centre (NBFC), Palermo, Italy
| | - V M Giacalone
- Institute of Anthropic Impacts and Sustainability in Marine Environment, National Research Council (IAS-CNR), Via del Mare 3, 91021 Torretta Granitola, Italy; National Biodiversity Future Centre (NBFC), Palermo, Italy
| | - G D'Anna
- Institute of Anthropic Impacts and Sustainability in Marine Environment, National Research Council (IAS-CNR), via Giovanni da Verrazzano 17, 91014 Castellammare del Golfo, Italy; National Biodiversity Future Centre (NBFC), Palermo, Italy
| | - F Badalamenti
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy; Institute 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, Italy; National Biodiversity Future Centre (NBFC), Palermo, Italy
| | - L Marín-Guirao
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy; Centro Oceanográfico de Murcia (IEO-CSIC), Varadero 1, 30740 San Pedro del Pinatar, Spain
| | - G Procaccini
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, 80121 Naples, Italy; National Biodiversity Future Centre (NBFC), Palermo, Italy
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Alberti M. Cities of the Anthropocene: urban sustainability in an eco-evolutionary perspective. Philos Trans R Soc Lond B Biol Sci 2024; 379:20220264. [PMID: 37952615 PMCID: PMC10645089 DOI: 10.1098/rstb.2022.0264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 09/18/2023] [Indexed: 11/14/2023] Open
Abstract
Cities across the globe are driving systemic change in social and ecological systems by accelerating the rates of interactions and intensifying the links between human activities and Earth's ecosystems, thereby expanding the scale and influence of human activities on fundamental processes that sustain life. Increasing evidence shows that cities not only alter biodiversity, they change the genetic makeup of many populations, including animals, plants, fungi and microorganisms. Urban-driven rapid evolution in species traits might have significant effects on socially relevant ecosystem functions such as nutrient cycling, pollination, water and air purification and food production. Despite increasing evidence that cities are causing rapid evolutionary change, current urban sustainability strategies often overlook these dynamics. The dominant perspectives that guide these strategies are essentially static, focusing on preserving biodiversity in its present state or restoring it to pre-urban conditions. This paper provides a systemic overview of the socio-eco-evolutionary transition associated with global urbanization. Using examples of observed changes in species traits that play a significant role in maintaining ecosystem function and resilience, I propose that these evolutionary changes significantly impact urban sustainability. Incorporating an eco-evolutionary perspective into urban sustainability science and planning is crucial for effectively reimagining the cities of the Anthropocene. This article is part of the theme issue 'Evolution and sustainability: gathering the strands for an Anthropocene synthesis'.
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Affiliation(s)
- Marina Alberti
- Department of Urban Design and Planning, University of Washington, Seattle, WA, 98195, USA
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Nguyen HM, Ruocco M, Dattolo E, Cassetti FP, Calvo S, Tomasello A, Marín-Guirao L, Pernice M, Procaccini G. Signs of local adaptation by genetic selection and isolation promoted by extreme temperature and salinity in the Mediterranean seagrass Posidonia oceanica. Mol Ecol 2023; 32:4313-4328. [PMID: 37271924 DOI: 10.1111/mec.17032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 05/10/2023] [Accepted: 05/17/2023] [Indexed: 06/06/2023]
Abstract
Adaptation to local conditions is known to occur in seagrasses; however, knowledge of the genetic basis underlying this phenomenon remains scarce. Here, we analysed Posidonia oceanica from six sites within and around the Stagnone di Marsala, a semi-enclosed coastal lagoon where salinity and temperature exceed the generally described tolerance thresholds of the species. Sea surface temperatures (SSTs) were measured and plant samples were collected for the assessment of morphology, flowering rate and for screening genome-wide polymorphisms using double digest restriction-site-associated DNA sequencing. Results demonstrated more extreme SSTs and salinity levels inside the lagoon than the outer lagoon regions. Morphological results showed significantly fewer and shorter leaves and reduced rhizome growth of P. oceanica from the inner lagoon and past flowering events were recorded only for a meadow farthest away from the lagoon. Using an array of 51,329 single nucleotide polymorphisms, we revealed a clear genetic structure among the study sites and confirmed the genetic isolation and high clonality of the innermost site. In all, 14 outlier loci were identified and annotated with several proteins including those relate to plant stress response, protein transport and regulators of plant-specific developmental events. Especially, five outlier loci showed maximum allele frequency at the innermost site, likely reflecting adaptation to the extreme temperature and salinity regimes, possibly due to the selection of more resistant genotypes and the progressive restriction of gene flow. Overall, this study helps us to disentangle the genetic basis of seagrass adaptation to local environmental conditions and may support future works on assisted evolution in seagrasses.
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Affiliation(s)
| | | | | | | | - Sebastiano Calvo
- Dipartimento di Scienze della Terra e del Mare, Università di Palermo, Palermo, Italy
| | - Agostino Tomasello
- Dipartimento di Scienze della Terra e del Mare, Università di Palermo, Palermo, Italy
| | - Lázaro Marín-Guirao
- Stazione Zoologica Anton Dohrn, Napoli, Italy
- Oceanographic Center of Murcia, Seagrass Ecology Group, Spanish Institute of Oceanography (IEO-CSIC), Murcia, Spain
| | - Mathieu Pernice
- Faculty of Science, Climate Change Cluster (C3), University of Technology Sydney, Ultimo, New South Wales, Australia
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