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Gu W, Wu S, Liu X, Wang L, Wang X, Qiu Q, Wang G. Algal-bacterial consortium promotes carbon sink formation in saline environment. J Adv Res 2024; 60:111-125. [PMID: 37597746 PMCID: PMC11156706 DOI: 10.1016/j.jare.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/26/2023] [Accepted: 08/05/2023] [Indexed: 08/21/2023] Open
Abstract
INTRODUCTION The level of atmospheric CO2 has continuously been increasing and the resulting greenhouse effects are receiving attention globally. Carbon removal from the atmosphere occurs naturally in various ecosystems. Among them, saline environments contribute significantly to the global carbon cycle. Carbonate deposits in the sediments of salt lakes are omnipresent, and the biological effects, especially driven by halophilic microalgae and bacteria, on carbonate formation remain to be elucidated. OBJECTIVES The present study aims to characterize the carbonates formed in saline environments and demonstrate the mechanisms underlying biological-driven CO2 removal via microalgal-bacterial consortium. METHODS The carbonates naturally formed in saline environments were collected and analyzed. Two saline representative organisms, the photosynthetic microalga Dunaliella salina and its mutualistic halophilic bacteria Nesterenkonia sp. were isolated from the inhabiting saline environment and co-cultivated to study their biological effects on carbonates precipitation and isotopic composition. During this process, electrochemical parameters and Ca2+ flux, and expression of genes related to CaCO3 formation were analyzed. Genome sequencing and metagenomic analysis were conducted to provide molecular evidence. RESULTS The results showed that natural saline sediments are enriched with CaCO3 and enrichment of genes related to photosynthesis and ureolysis. The co-cultivation stimulated 54.54% increase in CaCO3 precipitation and significantly promoted the absorption of external CO2 by 49.63%. A pH gradient was formed between the bacteria and algae culture, creating 150.22 mV of electronic potential, which might promote Ca2+ movement toward D. salina cells. Based on the results of lab-scale induction and 13C analysis, a theoretical calculation indicates a non-negligible amount of 0.16 and 2.3 Tg C/year carbon sequestration in China and global saline lakes, respectively. CONCLUSION The combined effects of these two typical representative species have contributed to the carbon sequestration in saline environments, by promoting Ca2+ influx and increase of pH via microalgal and bacterial metabolic processes.
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Affiliation(s)
- Wenhui Gu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Songcui Wu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Xuehua Liu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Lijun Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Xulei Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Qi Qiu
- Tianjin Changlu Hangu Saltern Co., LTD, 300480, China
| | - Guangce Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China.
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2
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Floyd M, East HK, Traganos D, Musthag A, Guest J, Hashim AS, Evans V, Helber S, Unsworth RKF, Suggitt AJ. Rapid seagrass meadow expansion in an Indian Ocean bright spot. Sci Rep 2024; 14:10879. [PMID: 38740840 DOI: 10.1038/s41598-024-61088-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024] Open
Abstract
The areal extent of seagrass meadows is in rapid global decline, yet they provide highly valuable societal benefits. However, their conservation is hindered by data gaps on current and historic spatial extents. Here, we outline an approach for national-scale seagrass mapping and monitoring using an open-source platform (Google Earth Engine) and freely available satellite data (Landsat, Sentinel-2) that can be readily applied in other countries globally. Specifically, we map contemporary (2021) and historical (2000-2021; n = 10 maps) shallow water seagrass extent across the Maldives. We found contemporary Maldivian seagrass extent was ~ 105 km2 (overall accuracy = 82.04%) and, notably, that seagrass area increased threefold between 2000 and 2021 (linear model, + 4.6 km2 year-1, r2 = 0.93, p < 0.001). There was a strongly significant association between seagrass and anthropogenic activity (p < 0.001) that we hypothesize to be driven by nutrient loading and/or altered sediment dynamics (from large scale land reclamation), which would represent a beneficial anthropogenic influence on Maldivian seagrass meadows. National-scale tropical seagrass expansion is unique against the backdrop of global seagrass decline and we therefore highlight the Maldives as a rare global seagrass 'bright spot' highly worthy of increased attention across scientific, commercial, and conservation policy contexts.
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Affiliation(s)
- Matthew Floyd
- Department of Geography and Environmental Sciences, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK.
| | - Holly K East
- Department of Geography and Environmental Sciences, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Dimosthenis Traganos
- German Aerospace Centre (DLR), Remote Sensing Technology Institute, 12489, Berlin, Germany
| | - Azim Musthag
- Small Island Research Group, Faresmaathoda, 10780, Maldives
| | - James Guest
- School of Natural and Environmental Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - Aminath S Hashim
- Blue Marine Foundation, M. Beach Side, Handhuvaree Hingun, Malé, 20285, Maldives
| | - Vivienne Evans
- Blue Marine Foundation, Somerset House, Strand, London, WC2R 1LA, UK
| | - Stephanie Helber
- Department of Geography and Environmental Sciences, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Richard K F Unsworth
- Seagrass Ecosystem Research Group, Faculty of Science and Engineering, Swansea University, Swansea, SA2 8PP, Wales, UK
| | - Andrew J Suggitt
- Department of Geography and Environmental Sciences, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
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3
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Nguyen HM, Hong UVT, Ruocco M, Dattolo E, Marín-Guirao L, Pernice M, Procaccini G. Thermo-priming triggers species-specific physiological and transcriptome responses in Mediterranean seagrasses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108614. [PMID: 38626655 DOI: 10.1016/j.plaphy.2024.108614] [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: 12/10/2023] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 04/18/2024]
Abstract
Heat-priming improves plants' tolerance to a recurring heat stress event. The underlying molecular mechanisms of heat-priming are largely unknown in seagrasses. Here, ad hoc mesocosm experiments were conducted with two Mediterranean seagrass species, Posidonia oceanica and Cymodocea nodosa. Plants were first exposed to heat-priming, followed by a heat-triggering event. A comprehensive assessment of plant stress response across different levels of biological organization was performed at the end of the triggering event. Morphological and physiological results showed an improved response of heat-primed P. oceanica plants while in C. nodosa both heat- and non-primed plants enhanced their growth rates at the end of the triggering event. As resulting from whole transcriptome sequencing, molecular functions related to several cellular compartments and processes were involved in the response to warming of non-primed plants, while the response of heat-primed plants involved a limited group of processes. Our results suggest that seagrasses acquire a primed state during the priming event, that eventually gives plants the ability to induce a more energy-effective response when the thermal stress event recurs. Different species may differ in their ability to perform an improved heat stress response after priming. This study provides pioneer molecular insights into the emerging topic of seagrass stress priming and may benefit future studies in the field.
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Affiliation(s)
- Hung Manh Nguyen
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
| | - Uyen V T Hong
- La Trobe University, AgriBio Building, Bundoora, 3086, VIC, Australia; Department of Plant Biotechnology & Biotransformation, University of Science, Vietnam National University, 700000, Ho Chi Minh City, Viet Nam
| | - Miriam Ruocco
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
| | - Emanuela Dattolo
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, 90133, Palermo, Italy
| | - Lázaro Marín-Guirao
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy; Oceanographic Center of Murcia, Seagrass Ecology Group, Spanish Institute of Oceanography (IEO-CSIC), C/Varadero, San Pedro del Pinatar, 30740, Murcia, Spain.
| | - Mathieu Pernice
- Faculty of Science, Climate Change Cluster (C3), University of Technology Sydney, Sydney, 2007, NSW, Australia
| | - Gabriele Procaccini
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, 90133, Palermo, Italy
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4
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Simantiris N. The impact of climate change on sea turtles: Current knowledge, scientometrics, and mitigation strategies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171354. [PMID: 38460688 DOI: 10.1016/j.scitotenv.2024.171354] [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: 12/11/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/11/2024]
Abstract
Sea turtles are one of the most significant groups of marine species, playing a key role in the sustainability and conservation of marine ecosystems and the food chain. These emblematic species are threatened by several natural and anthropogenic pressures, and climate change is increasingly reported as one of the most important threats to sea turtles, affecting sea turtles at all stages of their life cycle and at both their marine and coastal habitats. The effect of climate change is expressed as global warming, sea-level rise, extreme storms, and alterations in predation and diseases' patterns, posing a potentially negative impact on sea turtles. In this systematic review, the author presented the current knowledge and research outcomes on the impact of climate change on sea turtles. Moreover, this study determined trends and hotspots in keywords, country collaborations, authors, and publications in the field through a scientometric analysis. Finally, this article reviewed proposed mitigation strategies by researchers, marine protected area (MPA) managers, and non-governmental organizations (NGOs) to reduce the impact of climate change on the conservation of sea turtles.
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Affiliation(s)
- Nikolaos Simantiris
- MEDASSET (Mediterranean Association to Save the Sea Turtles), Likavittou 1C, Athens, 10632, Greece; Ionian University, Department of Informatics, Corfu, 49132, Greece.
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5
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Unsworth RKF, Jones BLH. Map and protect seagrass for biodiversity. Science 2024; 384:394. [PMID: 38662848 DOI: 10.1126/science.adp0937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Affiliation(s)
- R K F Unsworth
- Seagrass Ecosystem Research Group, Swansea University, Swansea SA2 8PP, UK
- Project Seagrass, Bridgend CF31 2AQ, UK
| | - B L H Jones
- Project Seagrass, Bridgend CF31 2AQ, UK
- Department of Earth and Environment, Institute of Environment, Florida International University, FL, Miami 33199, USA
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6
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Luo A, Li Y, Shrestha N, Xu X, Su X, Li Y, Lyu T, Waris K, Tang Z, Liu X, Lin L, Chen Y, Zu K, Song W, Peng S, Zimmermann NE, Pellissier L, Wang Z. Global multifaceted biodiversity patterns, centers, and conservation needs in angiosperms. SCIENCE CHINA. LIFE SCIENCES 2024; 67:817-828. [PMID: 38217639 DOI: 10.1007/s11427-023-2430-2] [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: 05/12/2023] [Accepted: 08/03/2023] [Indexed: 01/15/2024]
Abstract
The Convention on Biological Diversity seeks to conserve at least 30% of global land and water areas by 2030, which is a challenge but also an opportunity to better preserve biodiversity, including flowering plants (angiosperms). Herein, we compiled a large database on distributions of over 300,000 angiosperm species and the key functional traits of 67,024 species. Using this database, we constructed biodiversity-environment models to predict global patterns of taxonomic, phylogenetic, and functional diversity in terrestrial angiosperms and provide a comprehensive mapping of the three diversity facets. We further evaluated the current protection status of the biodiversity centers of these diversity facets. Our results showed that geographical patterns of the three facets of plant diversity exhibited substantial spatial mismatches and nonoverlapping conservation priorities. Idiosyncratic centers of functional diversity, particularly of herbaceous species, were primarily distributed in temperate regions and under weaker protection compared with other biodiversity centers of taxonomic and phylogenetic facets. Our global assessment of multifaceted biodiversity patterns and centers highlights the insufficiency and unbalanced conservation among the three diversity facets and the two growth forms (woody vs. herbaceous), thus providing directions for guiding the future conservation of global plant diversity.
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Affiliation(s)
- Ao Luo
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Yaoqi Li
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
- Department of Health and Environmental Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, China
| | - Nawal Shrestha
- State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Xiaoting Xu
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Xiangyan Su
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
- Land Consolidation and Rehabilitation Center, Ministry of Natural Resources, Beijing, 100035, China
| | - Yichao Li
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Tong Lyu
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Kilara Waris
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Zhiyao Tang
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Xiaojuan Liu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Luxiang Lin
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yongsheng Chen
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Kuiling Zu
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Wenqi Song
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Shijia Peng
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Niklaus E Zimmermann
- Swiss Federal Research Institute WSL, Birmensdorf, 8903, Switzerland
- Department of Environmental Systems Science, ETH Zürich, Zürich, 8092, Switzerland
| | - Loïc Pellissier
- Swiss Federal Research Institute WSL, Birmensdorf, 8903, Switzerland
- Department of Environmental Systems Science, ETH Zürich, Zürich, 8092, Switzerland
| | - Zhiheng Wang
- Institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
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7
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Ma X, Vanneste S, Chang J, Ambrosino L, Barry K, Bayer T, Bobrov AA, Boston L, Campbell JE, Chen H, Chiusano ML, Dattolo E, Grimwood J, He G, Jenkins J, Khachaturyan M, Marín-Guirao L, Mesterházy A, Muhd DD, Pazzaglia J, Plott C, Rajasekar S, Rombauts S, Ruocco M, Scott A, Tan MP, Van de Velde J, Vanholme B, Webber J, Wong LL, Yan M, Sung YY, Novikova P, Schmutz J, Reusch TBH, Procaccini G, Olsen JL, Van de Peer Y. Seagrass genomes reveal ancient polyploidy and adaptations to the marine environment. NATURE PLANTS 2024; 10:240-255. [PMID: 38278954 PMCID: PMC7615686 DOI: 10.1038/s41477-023-01608-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 12/05/2023] [Indexed: 01/28/2024]
Abstract
We present chromosome-level genome assemblies from representative species of three independently evolved seagrass lineages: Posidonia oceanica, Cymodocea nodosa, Thalassia testudinum and Zostera marina. We also include a draft genome of Potamogeton acutifolius, belonging to a freshwater sister lineage to Zosteraceae. All seagrass species share an ancient whole-genome triplication, while additional whole-genome duplications were uncovered for C. nodosa, Z. marina and P. acutifolius. Comparative analysis of selected gene families suggests that the transition from submerged-freshwater to submerged-marine environments mainly involved fine-tuning of multiple processes (such as osmoregulation, salinity, light capture, carbon acquisition and temperature) that all had to happen in parallel, probably explaining why adaptation to a marine lifestyle has been exceedingly rare. Major gene losses related to stomata, volatiles, defence and lignification are probably a consequence of the return to the sea rather than the cause of it. These new genomes will accelerate functional studies and solutions, as continuing losses of the 'savannahs of the sea' are of major concern in times of climate change and loss of biodiversity.
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Affiliation(s)
- Xiao Ma
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- Center for Plant Systems Biology, VIB, Ghent, Belgium
| | - Steffen Vanneste
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Jiyang Chang
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- Center for Plant Systems Biology, VIB, Ghent, Belgium
| | - Luca Ambrosino
- Department of Research Infrastructure for Marine Biological Resources, Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Kerrie Barry
- DOE Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Till Bayer
- Marine Evolutionary Ecology, GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, Germany
| | | | - LoriBeth Boston
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Justin E Campbell
- Coastlines and Oceans Division, Institute of Environment, Florida International University-Biscayne Bay Campus, Miami, FL, USA
| | - Hengchi Chen
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- Center for Plant Systems Biology, VIB, Ghent, Belgium
| | - Maria Luisa Chiusano
- Department of Research Infrastructure for Marine Biological Resources, Stazione Zoologica Anton Dohrn, Naples, Italy
- Department of Agricultural Sciences, University Federico II of Naples, Naples, Italy
| | - Emanuela Dattolo
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
- National Biodiversity Future Centre, Palermo, Italy
| | - Jane Grimwood
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Guifen He
- DOE Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Jerry Jenkins
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Marina Khachaturyan
- Marine Evolutionary Ecology, GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, Germany
- Institute of General Microbiology, University of Kiel, Kiel, Germany
| | - Lázaro Marín-Guirao
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
- Seagrass Ecology Group, Oceanographic Center of Murcia, Spanish Institute of Oceanography (IEO-CSIC), Murcia, Spain
| | - Attila Mesterházy
- Centre for Ecological Research, Wetland Ecology Research Group, Debrecen, Hungary
| | - Danish-Daniel Muhd
- Institute of Climate Adaptation and Marine Biotechnology, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Jessica Pazzaglia
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
- National Biodiversity Future Centre, Palermo, Italy
| | - Chris Plott
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | | | - Stephane Rombauts
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- Center for Plant Systems Biology, VIB, Ghent, Belgium
| | - Miriam Ruocco
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
- Fano Marine Center, Fano, Italy
| | - Alison Scott
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Köln, Germany
| | - Min Pau Tan
- Institute of Climate Adaptation and Marine Biotechnology, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Jozefien Van de Velde
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Köln, Germany
| | - Bartel Vanholme
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- Center for Plant Systems Biology, VIB, Ghent, Belgium
| | - Jenell Webber
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Li Lian Wong
- Institute of Climate Adaptation and Marine Biotechnology, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Mi Yan
- DOE Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Yeong Yik Sung
- Institute of Climate Adaptation and Marine Biotechnology, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Polina Novikova
- Department of Chromosome Biology, Max Planck Institute for Plant Breeding Research, Köln, Germany
| | - Jeremy Schmutz
- DOE Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Thorsten B H Reusch
- Marine Evolutionary Ecology, GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel, Kiel, Germany.
| | - Gabriele Procaccini
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy.
- National Biodiversity Future Centre, Palermo, Italy.
| | - Jeanine L Olsen
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands.
| | - Yves Van de Peer
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium.
- Center for Plant Systems Biology, VIB, Ghent, Belgium.
- Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa.
- College of Horticulture, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing, China.
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8
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Vivanco-Bercovich M, Sandoval-Gil JM, Bonet-Meliá P, Cabello-Pasini A, Muñiz-Salazar R, Montoya LR, Schubert N, Marín-Guirao L, Procaccini G, Ferreira-Arrieta A. Marine heatwaves recurrence aggravates thermal stress in the surfgrass Phyllospadix scouleri. MARINE POLLUTION BULLETIN 2024; 199:115943. [PMID: 38176159 DOI: 10.1016/j.marpolbul.2023.115943] [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: 06/03/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 01/06/2024]
Abstract
The surfgrass Phyllospadix scouleri grows in highly productive meadows along the Pacific coast of North America. This region has experienced increasingly severe marine heatwaves (MHWs) in recent years. Our study evaluated the impact of consecutive MHWs, simulated in mesocosms, on essential ecophysiological features of P. scouleri. Overall, our findings show that the plants' overall physiological status has been progressively declining. Interestingly, the indicators of physiological stress in photosynthesis only showed up once the initial heat exposure stopped (i.e., during the recovery period). The warming caused increased oxidative damage and a decrease in nitrate uptake rates. However, the levels of non-structural carbohydrates and relative growth rates were not affected. Our findings emphasize the significance of incorporating recovery periods in this type of study as they expose delayed stress responses. Furthermore, experiencing consecutive intense MHWs can harm surfgrasses over time, compromising the health of their meadows and the services they offer to the ecosystem.
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Affiliation(s)
- Manuel Vivanco-Bercovich
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Marine Botany Research Group, Ensenada, Baja California, Mexico
| | - Jose Miguel Sandoval-Gil
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Marine Botany Research Group, Ensenada, Baja California, Mexico.
| | - Paula Bonet-Meliá
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Marine Botany Research Group, Ensenada, Baja California, Mexico
| | - Alejandro Cabello-Pasini
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Marine Botany Research Group, Ensenada, Baja California, Mexico
| | - Raquel Muñiz-Salazar
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Marine Botany Research Group, Ensenada, Baja California, Mexico; Universidad Autónoma de Baja California (UABC), Escuela de Ciencias de la Salud, Ensenada, Baja California, Mexico
| | - Leonardo Ruiz Montoya
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Marine Botany Research Group, Ensenada, Baja California, Mexico
| | - Nadine Schubert
- CCMAR - Center of Marine Sciences, University of Algarve, Faro, Portugal
| | - Lázaro Marín-Guirao
- Instituto Español de Oceanografía (IEO), Centro Oceanográfico de Murcia, Seagrass Ecology Group, C/Varadero s/n, 30740 San Pedro del Pinatar, Murcia, Spain
| | - Gabriele Procaccini
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine Ecology, Villa Comunale, Naples, Italy
| | - Alejandra Ferreira-Arrieta
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Marine Botany Research Group, Ensenada, Baja California, Mexico
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9
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Losciale R, Day JC, Rasheed MA, Heron SF. The vulnerability of World Heritage seagrass habitats to climate change. GLOBAL CHANGE BIOLOGY 2024; 30:e17113. [PMID: 38273578 DOI: 10.1111/gcb.17113] [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: 02/16/2023] [Revised: 10/13/2023] [Accepted: 11/28/2023] [Indexed: 01/27/2024]
Abstract
Seagrass is an important natural attribute of 28 World Heritage (WH) properties. These WH seagrass habitats provide a wide range of services to adjacent ecosystems and human communities, and are one of the largest natural carbon sinks on the planet. Climate change is considered the greatest and fastest-growing threat to natural WH properties and evidence of climate-related impacts on seagrass habitats has been growing. The main objective of this study was to assess the vulnerability of WH seagrass habitats to location-specific key climate stressors. Quantitative surveys of seagrass experts and site managers were used to assess exposure, sensitivity and adaptive capacity of WH seagrass habitats to climate stressors, following the Climate Vulnerability Index approach. Over half of WH seagrass habitats have high vulnerability to climate change, mainly from the long-term increase in sea-surface temperature and short-term marine heatwaves. Potential impacts from climate change and certainty scores associated with them were higher than reported by a similar survey-based study from 10 years prior, indicating a shift in stakeholder perspectives during the past decade. Additionally, seagrass experts' opinions on the cumulative impacts of climate and direct-anthropogenic stressors revealed that high temperature in combination with high suspended sediments, eutrophication and hypoxia is likely to provoke a synergistic cumulative (negative) impact (p < .05). A key component contributing to the high vulnerability assessments was the low adaptive capacity; however, discrepancies between adaptive capacity scores and qualitative responses suggest that managers of WH seagrass habitats might not be adequately equipped to respond to climate change impacts. This thematic assessment provides valuable information to help prioritize conservation actions, monitoring activities and research in WH seagrass habitats. It also demonstrates the utility of a systematic framework to evaluate the vulnerability of thematic groups of protected areas that share a specific attribute.
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Affiliation(s)
- Riccardo Losciale
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Jon C Day
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Michael A Rasheed
- Centre for Tropical Water and Aquatic Ecosystem Research, James Cook University, Cairns, Queensland, Australia
| | - Scott F Heron
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
- Physics and Marine Geophysical Laboratory, College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
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10
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Xu C, Silliman BR, Chen J, Li X, Thomsen MS, Zhang Q, Lee J, Lefcheck JS, Daleo P, Hughes BB, Jones HP, Wang R, Wang S, Smith CS, Xi X, Altieri AH, van de Koppel J, Palmer TM, Liu L, Wu J, Li B, He Q. Herbivory limits success of vegetation restoration globally. Science 2023; 382:589-594. [PMID: 37917679 DOI: 10.1126/science.add2814] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/21/2023] [Indexed: 11/04/2023]
Abstract
Restoring vegetation in degraded ecosystems is an increasingly common practice for promoting biodiversity and ecological function, but successful implementation is hampered by an incomplete understanding of the processes that limit restoration success. By synthesizing terrestrial and aquatic studies globally (2594 experimental tests from 610 articles), we reveal substantial herbivore control of vegetation under restoration. Herbivores at restoration sites reduced vegetation abundance more strongly (by 89%, on average) than those at relatively undegraded sites and suppressed, rather than fostered, plant diversity. These effects were particularly pronounced in regions with higher temperatures and lower precipitation. Excluding targeted herbivores temporarily or introducing their predators improved restoration by magnitudes similar to or greater than those achieved by managing plant competition or facilitation. Thus, managing herbivory is a promising strategy for enhancing vegetation restoration efforts.
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Affiliation(s)
- Changlin Xu
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, School of Life Sciences, Fudan University, Shanghai, China
| | - Brian R Silliman
- Nicholas School of the Environment, Duke University, Beaufort, NC, USA
| | - Jianshe Chen
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, School of Life Sciences, Fudan University, Shanghai, China
| | - Xincheng Li
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, School of Life Sciences, Fudan University, Shanghai, China
| | - Mads S Thomsen
- Marine Ecology Research Group and Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
- Department of Bioscience, Aarhus University, Roskilde, Denmark
| | - Qun Zhang
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, School of Life Sciences, Fudan University, Shanghai, China
| | - Juhyung Lee
- Marine Science Center, Northeastern University, Nahant, MA, USA
- Department of Oceanography and Marine Research Institute, Pusan National University, Busan, Republic of Korea
| | - Jonathan S Lefcheck
- Tennenbaum Marine Observatories Network and MarineGEO Program, Smithsonian Environmental Research Center, Edgewater, MD, USA
- University of Maryland Center for Environmental Science, Cambridge, MD, USA
| | - Pedro Daleo
- Instituto de Investigaciones Marinas y Costeras (IIMyC), UNMdP, CONICETC, Mar del Plata, Argentina
| | - Brent B Hughes
- Department of Biology, Sonoma State University, Rohnert Park, CA, USA
| | - Holly P Jones
- Department of Biological Sciences and Institute for the Study of the Environment, Sustainability, and Energy, Northern Illinois University, DeKalb, IL, USA
| | - Rong Wang
- School of Ecological and Environmental Sciences, Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, East China Normal University, Shanghai, China
| | - Shaopeng Wang
- Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Carter S Smith
- Nicholas School of the Environment, Duke University, Beaufort, NC, USA
| | - Xinqiang Xi
- Department of Ecology, School of Life Science, Nanjing University, Nanjing, Jiangsu, China
| | - Andrew H Altieri
- Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL, USA
| | - Johan van de Koppel
- Department of Estuarine and Delta Systems, Royal Netherlands Institute for Sea Research, Yerseke, Netherlands
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, Netherlands
| | - Todd M Palmer
- Department of Biology, University of Florida, Gainesville, FL, USA
| | - Lingli Liu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Jihua Wu
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, and College of Ecology, Lanzhou University, Lanzhou, Gansu, China
| | - Bo Li
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology and Centre for Invasion Biology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan, China
| | - Qiang He
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering, National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, School of Life Sciences, Fudan University, Shanghai, China
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11
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Muller A, Dubois SF, Boyé A, Becheler R, Droual G, Chevalier M, Pasquier M, Roudaut L, Fournier‐Sowinski J, Auby I, Nunes FLD. Environmental filtering and biotic interactions act on different facets of the diversity of benthic assemblages associated with eelgrass. Ecol Evol 2023; 13:e10159. [PMID: 38034328 PMCID: PMC10682608 DOI: 10.1002/ece3.10159] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 05/15/2023] [Accepted: 05/19/2023] [Indexed: 12/02/2023] Open
Abstract
Eelgrass supports diverse benthic communities that ensure a variety of ecosystem functions. To better understand the ecological processes that shape community composition in eelgrass at local and regional scales, taxonomic and functional α- and β-diversity were quantified for communities inhabiting five meadows in France. The extent to which environmental factors affected local and regional benthic communities was quantified by considering their direct and indirect effects (through morphological traits of eelgrass) using piecewise structural equation modeling (pSEM). Communities supported by eelgrass had higher species abundances, as well as taxonomic and functional diversity compared to nearby bare sediments. No significant differences were found between communities from the center relative to the edges of meadows, indicating that both habitats provide similar benefits to biodiversity. The presence of a few abundant species and traits suggests moderate levels of habitat filtering and close associations of certain species with eelgrass. Nevertheless, high turnover of a large number of rare species and traits was observed among meadows, resulting in meadows being characterized by their own distinct communities. High turnover indicates that much of the community is not specific to eelgrass, but rather reflects local species pools. pSEM showed that spatial variation in community composition (β-diversity) was primarily affected by environmental conditions, with temperature, current velocity, and tidal amplitude being the most significant explanatory variables. Local richness and abundance (α-diversity) were affected by both environment and morphological traits. Importantly, morphological traits of Zostera marina were also influenced by environmental conditions, revealing cascading effects of the environment on assemblages. In sum, the environment exerted large effects on community structure at both regional and local scales, while plant traits were only pertinent in explaining local diversity. This complex interplay of processes acting at multiple scales with indirect effects should be accounted for in conservation efforts that target the protection of biodiversity.
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Affiliation(s)
- Alexandre Muller
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
| | - Stanislas F. Dubois
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
| | - Aurélien Boyé
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
| | - Ronan Becheler
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
| | - Gabin Droual
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
- DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAEInstitut Agrocampus OuestNantesFrance
| | - Mathieu Chevalier
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
| | - Marine Pasquier
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
| | - Loïg Roudaut
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
| | - Jérôme Fournier‐Sowinski
- CNRS, Centre d'Écologie et des Sciences de la Conservation (CESCO)Station de Biologie Marine MNHNConcarneauFrance
| | - Isabelle Auby
- IFREMER, Laboratoire Environnement Ressources d'ArcachonArcachonFrance
| | - Flávia L. D. Nunes
- IFREMER Centre de Bretagne, DYNECOLaboratoire d'Ecologie Benthique CôtièrePlouzanéFrance
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12
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Yao N, Zhang Z, Yu L, Hazarika R, Yu C, Jang H, Smith LM, Ton J, Liu L, Stachowicz JJ, Reusch TBH, Schmitz RJ, Johannes F. An evolutionary epigenetic clock in plants. Science 2023; 381:1440-1445. [PMID: 37769069 DOI: 10.1126/science.adh9443] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/08/2023] [Indexed: 09/30/2023]
Abstract
Molecular clocks are the basis for dating the divergence between lineages over macroevolutionary timescales (~105 to 108 years). However, classical DNA-based clocks tick too slowly to inform us about the recent past. Here, we demonstrate that stochastic DNA methylation changes at a subset of cytosines in plant genomes display a clocklike behavior. This "epimutation clock" is orders of magnitude faster than DNA-based clocks and enables phylogenetic explorations on a scale of years to centuries. We show experimentally that epimutation clocks recapitulate known topologies and branching times of intraspecies phylogenetic trees in the self-fertilizing plant Arabidopsis thaliana and the clonal seagrass Zostera marina, which represent two major modes of plant reproduction. This discovery will open new possibilities for high-resolution temporal studies of plant biodiversity.
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Affiliation(s)
- N Yao
- Department of Genetics, University of Georgia, Athens, GA, USA
| | - Z Zhang
- Plant Epigenomics, Technical University of Munich, Freising, Germany
| | - L Yu
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - R Hazarika
- Plant Epigenomics, Technical University of Munich, Freising, Germany
| | - C Yu
- Plant Epigenomics, Technical University of Munich, Freising, Germany
| | - H Jang
- Department of Genetics, University of Georgia, Athens, GA, USA
| | - L M Smith
- School of Biosciences, University of Sheffield, Sheffield, UK
| | - J Ton
- School of Biosciences, University of Sheffield, Sheffield, UK
| | - L Liu
- Department of Statistics, University of Georgia, Athens, GA, USA
| | - J J Stachowicz
- Department of Evolution and Ecology, University of California, Davis, CA, USA
| | - T B H Reusch
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - R J Schmitz
- Department of Genetics, University of Georgia, Athens, GA, USA
| | - F Johannes
- Plant Epigenomics, Technical University of Munich, Freising, Germany
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13
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Reconstructing the worldwide colonization history of the world's most widespread marine plant. NATURE PLANTS 2023; 9:1180-1181. [PMID: 37507571 DOI: 10.1038/s41477-023-01465-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
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14
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Yu L, Khachaturyan M, Matschiner M, Healey A, Bauer D, Cameron B, Cusson M, Emmett Duffy J, Joel Fodrie F, Gill D, Grimwood J, Hori M, Hovel K, Hughes AR, Jahnke M, Jenkins J, Keymanesh K, Kruschel C, Mamidi S, Menning DM, Moksnes PO, Nakaoka M, Pennacchio C, Reiss K, Rossi F, Ruesink JL, Schultz ST, Talbot S, Unsworth R, Ward DH, Dagan T, Schmutz J, Eisen JA, Stachowicz JJ, Van de Peer Y, Olsen JL, Reusch TBH. Ocean current patterns drive the worldwide colonization of eelgrass (Zostera marina). NATURE PLANTS 2023; 9:1207-1220. [PMID: 37474781 PMCID: PMC10435387 DOI: 10.1038/s41477-023-01464-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 06/21/2023] [Indexed: 07/22/2023]
Abstract
Currents are unique drivers of oceanic phylogeography and thus determine the distribution of marine coastal species, along with past glaciations and sea-level changes. Here we reconstruct the worldwide colonization history of eelgrass (Zostera marina L.), the most widely distributed marine flowering plant or seagrass from its origin in the Northwest Pacific, based on nuclear and chloroplast genomes. We identified two divergent Pacific clades with evidence for admixture along the East Pacific coast. Two west-to-east (trans-Pacific) colonization events support the key role of the North Pacific Current. Time-calibrated nuclear and chloroplast phylogenies yielded concordant estimates of the arrival of Z. marina in the Atlantic through the Canadian Arctic, suggesting that eelgrass-based ecosystems, hotspots of biodiversity and carbon sequestration, have only been present there for ~243 ky (thousand years). Mediterranean populations were founded ~44 kya, while extant distributions along western and eastern Atlantic shores were founded at the end of the Last Glacial Maximum (~19 kya), with at least one major refuge being the North Carolina region. The recent colonization and five- to sevenfold lower genomic diversity of the Atlantic compared to the Pacific populations raises concern and opportunity about how Atlantic eelgrass might respond to rapidly warming coastal oceans.
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Affiliation(s)
- Lei Yu
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Marina Khachaturyan
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
- Institute of General Microbiology, Kiel University, Kiel, Germany
| | - Michael Matschiner
- Department of Paleontology and Museum, University of Zurich, Zurich, Switzerland
- Natural History Museum, University of Oslo, Oslo, Norway
| | - Adam Healey
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Diane Bauer
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Brenda Cameron
- Department of Evolution and Ecology, University of California, Davis, CA, USA
| | - Mathieu Cusson
- Département des sciences fondamentales, Université du Québec à Chicoutimi, Chicoutimi, Quebec, Canada
| | - J Emmett Duffy
- Tennenbaum Marine Observatories Network, Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - F Joel Fodrie
- Institute of Marine Sciences (UNC-CH), Morehead City, NC, USA
| | - Diana Gill
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Jane Grimwood
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Masakazu Hori
- Japan Fisheries Research and Education Agency, Yokohama, Japan
| | - Kevin Hovel
- Department of Biology, San Diego State University, San Diego, CA, USA
| | | | - Marlene Jahnke
- Tjärnö Marine Laboratory, Department of Marine Sciences, University of Gothenburg, Strömstad, Sweden
| | - Jerry Jenkins
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | - Keykhosrow Keymanesh
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | | | - Sujan Mamidi
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
| | | | - Per-Olav Moksnes
- Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden
| | | | - Christa Pennacchio
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | | | - Francesca Rossi
- Department of Integrative Marine Ecology (EMI), Stazione Zoologica Anton Dohrn-National Institute of Marine Biology, Ecology and Biotechnology, Genoa, Italy
| | | | | | - Sandra Talbot
- Far Northwestern Institute of Art and Science, Anchorage, AK, USA
| | - Richard Unsworth
- Department of Biosciences, Swansea University, Swansea, UK
- Project Seagrass, the Yard, Bridgend, UK
| | - David H Ward
- US Geological Survey, Alaska Science Center, Anchorage, AK, USA
| | - Tal Dagan
- Institute of General Microbiology, Kiel University, Kiel, Germany
| | - Jeremy Schmutz
- Genome Sequencing Center, HudsonAlpha Institute for Biotechnology, Huntsville, AL, USA
- US Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Jonathan A Eisen
- Department of Evolution and Ecology, University of California, Davis, CA, USA
| | - John J Stachowicz
- Department of Evolution and Ecology, University of California, Davis, CA, USA
- Center for Population Biology, University of California, Davis, CA, USA
| | - Yves Van de Peer
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Gent, Belgium
- Center for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Pretoria, South Africa
- College of Horticulture, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing, China
- VIB-UGent Center for Plant Systems Biology, Gent, Belgium
| | - Jeanine L Olsen
- Groningen Institute for Evolutionary Life Sciences, Groningen, The Netherlands
| | - Thorsten B H Reusch
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
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15
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Nguyen HM, Andolina C, Vizzini S, Gambi MC, Winters G. Effects of anthropogenic pressures on the seagrass Halophila stipulacea and its associated macrozoobenthic communities in the northern Gulf of Aqaba. MARINE ENVIRONMENTAL RESEARCH 2023; 189:106073. [PMID: 37413952 DOI: 10.1016/j.marenvres.2023.106073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 06/22/2023] [Accepted: 06/25/2023] [Indexed: 07/08/2023]
Abstract
Halophila stipulacea is a tropical seagrass species, native to the Red Sea, Persian Gulf, and Indian Ocean, while invasive to the Mediterranean and Caribbean Seas. The benthic fauna assemblages associated with H. stipulacea in its native habitats and the potential effects of anthropogenic stressors on these assemblages remain unknown. We compared meadow characteristics, associated fauna assemblages and trophic niche structures of H. stipulacea from an impacted and a pristine site in the northern Red Sea. Seagrass cover and biomass were higher in the impacted site, however, the associated fauna community was more abundant and diverse in the pristine site. Both meadows showed comparable trophic niches based on stable isotope analysis. This study provides first insights into the macrozoobenthos associated with H. stipulacea in its native habitat and highlights the importance of better understanding the relationship between seagrasses and their associated biota and the potential effects of urbanization on this relationship.
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Affiliation(s)
- Hung Manh Nguyen
- Dead Sea and Arava Science Center, Masada National Park, Mount Masada, 8698000, Israel; French Associates Institute for Agriculture and Biotechnology of Dryland, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, 8499000, Israel.
| | - Cristina Andolina
- Department of Earth and Marine Sciences, University of Palermo, Palermo, Italy; National Inter-University Consortium for Marine Sciences-CoNISMa, Rome, Italy
| | - Salvatrice Vizzini
- Department of Earth and Marine Sciences, University of Palermo, Palermo, Italy; National Inter-University Consortium for Marine Sciences-CoNISMa, Rome, Italy
| | | | - Gidon Winters
- Dead Sea and Arava Science Center, Masada National Park, Mount Masada, 8698000, Israel; Eilat Campus, Ben-Gurion University of the Negev, Hatmarim Blv, Eilat, 8855630, Israel
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16
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Shayka BF, Hesselbarth MHK, Schill SR, Currie WS, Allgeier JE. The natural capital of seagrass beds in the Caribbean: evaluating their ecosystem services and blue carbon trade potential. Biol Lett 2023; 19:20230075. [PMID: 37340807 PMCID: PMC10282569 DOI: 10.1098/rsbl.2023.0075] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 06/07/2023] [Indexed: 06/22/2023] Open
Abstract
Seagrass beds provide tremendous services to society, including the storage of carbon, with important implications for climate change mitigation. Prioritizing conservation of this valuable natural capital is of global significance, and including seagrass beds in global carbon markets through projects that minimize loss, increase area or restore degraded areas represents a mechanism towards this end. Using newly available Caribbean seagrass distribution data, we estimated carbon storage in the region and calculated economic valuations of total ecosystem services and carbon storage. We estimated the 88 170 km2 of seagrass in the Caribbean stores 1337.8 (360.5-2335.0, minimum and maximum estimates, respectively) Tg carbon. The value of these seagrass ecosystems in terms of total ecosystem services and carbon alone was estimated to be $255 billion yr-1 and $88.3 billion, respectively, highlighting their potential monetary importance for the region. Our results show that Caribbean seagrass beds are globally substantial pools of carbon, and our findings underscore the importance of such evaluation schemes to promote urgently needed conservation of these highly threatened and globally important ecosystems.
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Affiliation(s)
- Bridget F. Shayka
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Steven R. Schill
- Caribbean Division, The Nature Conservancy, Coral Gables, FL 33134, USA
| | - William S. Currie
- School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jacob E. Allgeier
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA
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17
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Luo Q, Chen S, Nian H, Ma Q, Ding Y, Hao Q, Wei J, Patel JD, McElroy JS, Liu Y, Chen Y. Establishment of an Efficient Agrobacterium-Mediated Genetic Transformation System to Enhance the Tolerance of the Paraquat Stress in Engineering Goosegrass (Eleusine Indica L.). Int J Mol Sci 2023; 24:ijms24076629. [PMID: 37047599 PMCID: PMC10095498 DOI: 10.3390/ijms24076629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/25/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
Eleusine indica (goosegrass) is a problematic weed worldwide known for its multi-herbicide tolerance/resistance biotype. However, a genetic transformation method in goosegrass has not been successfully established, making a bottleneck for functional genomics studies in this species. Here, we report a successful Agrobacterium-mediated transformation method for goosegrass. Firstly, we optimized conditions for breaking seed dormancy and increasing seed germination rate. A higher callus induction rate from germinated seeds was obtained in N6 than in MS or B5 medium. Then the optimal transformation efficiency of the gus reporter gene was obtained by infection with Agrobacterium tumefaciens culture of OD600 = 0.5 for 30 min, followed by 3 days of co-cultivation with 300 μmol/L acetosyringone. Concentrations of 20 mg L−1 kanamycin and 100 mg L−1 timentin were used to select the transformed calli. The optimal rate of regeneration of the calli was generated by using 0.50 mg L−1 6-BA and 0.50 mg L−1 KT in the culture medium. Then, using this transformation method, we overexpressed the paraquat-resistant EiKCS gene into a paraquat-susceptible goosegrass biotype MZ04 and confirmed the stable inheritance of paraquat-resistance in the transgenic goosegrass lines. This approach may provide a potential mechanism for the evolution of paraquat-resistant goosegrass and a promising gene for the manipulation of paraquat-resistance plants. This study is novel and valuable in future research using similar methods for herbicide resistance.
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Affiliation(s)
- Qiyu Luo
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
- Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL 36830, USA
| | - Shu Chen
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Hai Nian
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Qibing Ma
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Yuyao Ding
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Qinwen Hao
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Jiping Wei
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Jinesh D. Patel
- Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL 36830, USA
| | - Joseph Scott McElroy
- Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL 36830, USA
| | - Yaoguang Liu
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Yong Chen
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China
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18
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Yao N, Zhang Z, Yu L, Hazarika R, Yu C, Jang H, Smith LM, Ton J, Liu L, Stachowicz J, Reusch T, Schmitz RJ, Johannes F. An evolutionary epigenetic clock in plants. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.15.532766. [PMID: 36993545 PMCID: PMC10055040 DOI: 10.1101/2023.03.15.532766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Molecular clocks are the basis for dating the divergence between lineages over macro-evolutionary timescales (~10 5 -10 8 years). However, classical DNA-based clocks tick too slowly to inform us about the recent past. Here, we demonstrate that stochastic DNA methylation changes at a subset of cytosines in plant genomes possess a clock-like behavior. This 'epimutation-clock' is orders of magnitude faster than DNA-based clocks and enables phylogenetic explorations on a scale of years to centuries. We show experimentally that epimutation-clocks recapitulate known topologies and branching times of intra-species phylogenetic trees in the selfing plant A. thaliana and the clonal seagrass Z. marina , which represent two major modes of plant reproduction. This discovery will open new possibilities for high-resolution temporal studies of plant biodiversity.
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Affiliation(s)
- N Yao
- Department of Genetics, University of Georgia, Athens, USA
| | - Z Zhang
- Plant Epigenomics, Technical University of Munich, Freising, Germany
| | - L Yu
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - R Hazarika
- Plant Epigenomics, Technical University of Munich, Freising, Germany
| | - C Yu
- Plant Epigenomics, Technical University of Munich, Freising, Germany
| | - H Jang
- Department of Genetics, University of Georgia, Athens, USA
| | - L M Smith
- School of Biosciences, University of Sheffield, UK
| | - J Ton
- School of Biosciences, University of Sheffield, UK
| | - L Liu
- Department of Statistics, University of Georgia, Athens, USA
| | - J Stachowicz
- Department of Evolution and Ecology, University of California, Davis, USA
| | - Tbh Reusch
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - R J Schmitz
- Department of Genetics, University of Georgia, Athens, USA
| | - F Johannes
- Plant Epigenomics, Technical University of Munich, Freising, Germany
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19
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Du J, Chen B, Nagelkerken I, Chen S, Hu W. Protect seagrass meadows in China's waters. Science 2023; 379:447. [PMID: 36730396 DOI: 10.1126/science.adg2926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jianguo Du
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.,Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
| | - Bin Chen
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.,Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
| | - Ivan Nagelkerken
- School of Biological Sciences and the Environment Institute, The University of Adelaide, Adelaide, Australia
| | - Shiquan Chen
- Hainan Academy of Ocean and Fisheries Sciences, Haikou 570125, China
| | - Wenjia Hu
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.,Key Laboratory of Marine Ecological Conservation and Restoration, Ministry of Natural Resources, Xiamen 361005, China
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20
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Lee KM, Ballard MS, McNeese AR, Wilson PS, Venegas GR, Zeh MC, Rahman AF. Inter-seasonal comparison of acoustic propagation in a Thalassia testudinum seagrass meadow in a shallow sub-tropical lagoon. JASA EXPRESS LETTERS 2023; 3:010801. [PMID: 36725540 DOI: 10.1121/10.0016752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Acoustic propagation measurements were collected in a seagrass meadow in a shallow lagoon for periods of over 65 h in winter and 93 h in summer. A bottom-deployed sound source transmitted chirps (0.1-100 kHz) every 10 min that were received on a four-receiver horizontal hydrophone array. Oceanographic probes measured various environmental parameters. Daytime broadband acoustic attenuation was 2.4 dB greater in summer than winter, and the median received acoustic energy levels were 8.4 dB lower in summer compared to winter. These differences were attributed in part to seasonal changes in photosynthesis bubble production and above-ground seagrass biomass.
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Affiliation(s)
- Kevin M Lee
- Applied Research Laboratories, The University of Texas at Austin, Austin, Texas 78713, USA
| | - Megan S Ballard
- Applied Research Laboratories, The University of Texas at Austin, Austin, Texas 78713, USA
| | - Andrew R McNeese
- Applied Research Laboratories, The University of Texas at Austin, Austin, Texas 78713, USA
| | - Preston S Wilson
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Gabriel R Venegas
- Applied Research Laboratories, The University of Texas at Austin, Austin, Texas 78713, USA
| | - Mathew C Zeh
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Abdullah F Rahman
- School of Earth, Environmental, and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, Texas 78520, , , , , , ,
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21
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Unsworth R, Rees S, Bertelli C, Esteban N, Furness E, Walter B. Nutrient additions to seagrass seed planting improve seedling emergence and growth. FRONTIERS IN PLANT SCIENCE 2022; 13:1013222. [PMID: 36507401 PMCID: PMC9728802 DOI: 10.3389/fpls.2022.1013222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 10/24/2022] [Indexed: 06/17/2023]
Abstract
To maximize the opportunities of seagrass as a nature-based solution requires restoration to occur on a large scale. New methods and knowledge are required that can solve ecological bottlenecks, improving its reliability and effectiveness. Although there is increasing interest in the use of seeds for seagrass restoration there exists a limited understanding of how best to plant them with the most knowledge on germination and seedling emergence coming from laboratory studies. Here we present the results of a novel field study on the emergence success of seeds of the seagrass Zostera marina when subjected to varied planting treatments. Seeds were planted into hessian bags according to a factorial design of three treatments (sediment type, detritus addition, and nutrient addition). By adding nutrients to natural sediment, the present study provides some evidence of seagrass shoot emergence and maximum shoot length doubling. The present study provides evidence that even in heavily nutrient-rich environments, seagrass sediments may require additional nutrients to improve seedling emergence and growth. It also highlights the highly variable nature of planting seagrass seeds in shallow coastal environments. Critically this study provides increasing levels of evidence that small subtleties in the method can have large consequences for seagrass restoration and that for restoration to scale to levels that are relevant for nature-based solutions there remain many unknowns that require consideration.
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Affiliation(s)
- R.K.F. Unsworth
- Seagrass Ecosystem Research Group, Swansea University, Swansea, United Kingdom
- Project Seagrass, The Yard, Cardiff, Wales, Bridgend, United Kingdom
| | - S.C. Rees
- Seagrass Ecosystem Research Group, Swansea University, Swansea, United Kingdom
- Project Seagrass, The Yard, Cardiff, Wales, Bridgend, United Kingdom
| | - C.M. Bertelli
- Seagrass Ecosystem Research Group, Swansea University, Swansea, United Kingdom
| | - N.E. Esteban
- Seagrass Ecosystem Research Group, Swansea University, Swansea, United Kingdom
| | - E.J. Furness
- Seagrass Ecosystem Research Group, Swansea University, Swansea, United Kingdom
- Project Seagrass, The Yard, Cardiff, Wales, Bridgend, United Kingdom
| | - B. Walter
- Project Seagrass, The Yard, Cardiff, Wales, Bridgend, United Kingdom
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