Macroalgal virosphere assists with host–microbiome equilibrium regulation and affects prokaryotes in surrounding marine environments DOI Creative Commons
Jiulong Zhao, Shailesh Nair, Zenghu Zhang

и другие.

The ISME Journal, Год журнала: 2024, Номер 18(1)

Опубликована: Янв. 1, 2024

The microbiomes in macroalgal holobionts play vital roles regulating growth and ocean carbon cycling. However, the virospheres remain largely underexplored, representing a critical knowledge gap. Here we unveil that holobiont of kelp (Saccharina japonica) harbors highly specific unique epiphytic/endophytic viral species, with novelty (99.7% unknown) surpassing even extreme marine habitats (e.g. deep-sea hadal zones), indicating virospheres, despite being closest to us, are among least understood. These viruses potentially maintain microbiome equilibrium for health via lytic-lysogenic infections expression folate biosynthesis genes. In-situ mesocosm cultivation metagenomic mining revealed profoundly reshaped surrounding seawater sediment virus-prokaryote pairings through changing environmental conditions virus-host migrations. Some epiphytic could infect autochthonous bacteria after deposition. Moreover, presence ample auxiliary metabolic genes polysaccharide laminarin) degradation underscores underappreciated influence on This study provides key insights into understanding previously overlooked ecological significance within macroalgae-prokaryotes-virus tripartite relationship.

Язык: Английский

Molecular-level insights into dissolved organic matter and its variations of the full-scale processes in a typical petrochemical wastewater treatment plant DOI
Min Li, Zhouyang Li,

Liya Fu

и другие.

Water Research, Год журнала: 2024, Номер 261, С. 121990 - 121990

Опубликована: Июнь 25, 2024

Язык: Английский

Процитировано

10

Dissolved Organic Carbon Estimation in Lakes: Improving Machine Learning with Data Augmentation on Fusion of Multi-Sensor Remote Sensing Observations DOI

Seyed Babak Haji Seyed Asadollah,

Ahmadreza Safaeinia,

Sina Jarahizadeh

и другие.

Water Research, Год журнала: 2025, Номер 277, С. 123350 - 123350

Опубликована: Фев. 22, 2025

Язык: Английский

Процитировано

2

Air‐sea carbon dioxide equilibrium: Will it be possible to use seaweeds for carbon removal offsets? DOI Creative Commons
Catriona L. Hurd, Jean‐Pierre Gattuso, Philip W. Boyd

и другие.

Journal of Phycology, Год журнала: 2023, Номер 60(1), С. 4 - 14

Опубликована: Ноя. 9, 2023

Abstract To limit global warming below 2°C by 2100, we must drastically reduce greenhouse gas emissions and additionally remove ~100–900 Gt CO 2 from the atmosphere (carbon dioxide removal, CDR) to compensate for unavoidable emissions. Seaweeds (marine macroalgae) naturally grow in coastal regions worldwide where they are crucial primary production carbon cycling. They being considered as a biological method CDR use trading schemes offsets. seaweeds requires verification that seaweed photosynthesis fixes into organic results CDR, along with safe secure storage of removed more than 100 years (sequestration). There is much ongoing research magnitude pools (e.g., living biomass particulate dissolved sediments deep ocean), but these do not equate unless amount result can be quantified verified. The draw‐down atmospheric seawater via air‐sea equilibrium, which operates on time scales weeks depending upon ecosystem considered. Here, explain why quantifying equilibrium linking this process critical step needed verify discrete beds nearshore open ocean aquaculture systems prior their trading.

Язык: Английский

Процитировано

22

Patterns and drivers of macroalgal ‘blue carbon’ transport and deposition in near-shore coastal environments DOI Creative Commons

Erlania Erlania,

Alecia Bellgrove, Peter I. Macreadie

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 890, С. 164430 - 164430

Опубликована: Май 27, 2023

The role of macroalgae (seaweed) as a global contributor to carbon drawdown within marine sediments - termed 'blue carbon' remains uncertain and controversial. While studies are needed validate the potential for macroalgal‑carbon sequestration in coastal sediments, fundamental questions regarding fate dislodged macroalgal biomass need be addressed. Evidence suggests may advected deposited other vegetated ecosystems down deep ocean; however, contributions near-shore waters remain uncertain. In this study combination eDNA metabarcoding surficial sediment sampling informed by seabed mapping from different physical environments was used test presence south-eastern Australia, factors influencing patterns transport deposition. DNA products total 68 taxa, representing all major groups (Phaeophyceae, Rhodophyta, Chlorophyta) were successfully detected at 112 locations. These findings confirm exported into suggest donors could both speciose diverse. Modelling suggested that deposition, organic (TOC), influenced complex interactions between several environmental including water depth, grain size, wave orbital velocity, current speed, direction, extent infralittoral zone around depositional areas. Extrapolation optimised model predict spatial deposition TOC across coastline identify potentially important sinks. This builds on recent providing empirical evidence deposits framework predicting distribution sinks informing future surveys aimed determining long-term sediments.

Язык: Английский

Процитировано

21

Seaweed farming environments do not always function as CO2 sink under synergistic influence of macroalgae and microorganisms DOI
Tianqi Xiong, Hongmei Li, Yubin Hu

и другие.

Agriculture Ecosystems & Environment, Год журнала: 2023, Номер 361, С. 108824 - 108824

Опубликована: Ноя. 23, 2023

Язык: Английский

Процитировано

19

Effectiveness of Chemical Oxygen Demand as an Indicator of Organic Pollution in Aquatic Environments DOI Creative Commons

Zongqing Lv,

Xiangbin Ran, Jun Liu

и другие.

Ocean-Land-Atmosphere Research, Год журнала: 2024, Номер 3

Опубликована: Янв. 1, 2024

The chemical oxygen demand (COD) is an essential indicator of organic pollution that represents the amount bulk carbon in water. COD strongly correlated with nutrient cycles and other pollutants environment, but it has a limited ability to quantify (OC), which large proportion made up refractory dissolved (RDOC) potential sink. Moreover, biodegradability OC terms its fate destination should be explored, as well how this reflected by COD. Methods based on particle size, spectroscopy, isotopic tracing are expected help deciphering bioavailability COD-responsive explore processes biogeochemical cycles. As pressure environment from anthropogenic inputs increases, understanding associated will developing more precise scientific indicators for environmental monitoring identifying new tools increase knowledge cycle. In review, we discuss application, scope, means, advances measurement. Based data literature, estimate global RDOC stock assess impact cycle offshore bays. This review presents insights into behavior aquatic environments pathway ocean negative emissions expanding role sink offset effect emissions.

Язык: Английский

Процитировано

8

The bioavailability and component characteristics of the aging dissolved organic matter (DOM) from the macroalgae Ulva prolifera in seawater DOI
Xinyu Li, Cheng Zeng,

Xiurong Han

и другие.

Marine Environmental Research, Год журнала: 2025, Номер 204, С. 106946 - 106946

Опубликована: Янв. 4, 2025

Язык: Английский

Процитировано

1

Can the Emerging European Seaweed Industry Contribute to Climate Change Mitigation by Enhancing Carbon Sequestration? DOI Creative Commons

Maxine C. Canvin,

Ana R. Borrero‐Santiago,

Tom Brook

и другие.

Reviews in Aquaculture, Год журнала: 2025, Номер 17(2)

Опубликована: Март 1, 2025

ABSTRACT Blue carbon habitats, which exhibit high rates of natural sequestration, typically refer to salt marshes, seagrass meadows, and mangrove forests. Recent studies, however, have argued for the inclusion seaweed‐dominated like kelp forests, into blue frameworks. Farmed seaweed may also function as a habitat, with large‐scale aquaculture suggested climate change mitigation strategy, but evidence base remains limited. Here, existing knowledge on mechanisms influencing uptake, release, transport, storage from farms was synthesised, literature review conducted quantify associated sequestration. We identified strong geographical methodological biases in literature, majority studies Asia focusing primary production proxy sequestration potential. Estimates release were highly variable across locations, species, approaches, scarcity research dissolved organic carbon, sedimentary net ecosystem productivity identified. Although European farming industry is its infancy, it predicted expand meet increasing demand biomass. This incentivised by perceived service benefits such enhanced However, multiple factors including environmental concerns, lack quantitative evidence, operational challenges, regulatory complexities hinder expansion. Based both synthesised empirical an examination key barriers gaps, we identify future challenges priorities needed assess role mitigation.

Язык: Английский

Процитировано

1

Characteristics of microbial carbon pump in the sediment of kelp aquaculture zone and its contribution to recalcitrant dissolved organic carbon turnover: insights into metabolic patterns and ecological functions DOI

Jun‐Yang Ma,

Jihua Liu,

Cheng-Zhuang Chen

и другие.

Environmental Research, Год журнала: 2025, Номер unknown, С. 121559 - 121559

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

1

Green Tides Significantly Alter the Molecular Composition and Properties of Coastal DOC and Perform Dissolved Carbon Sequestration DOI
Hongmei Li,

Xiuting Feng,

Tianqi Xiong

и другие.

Environmental Science & Technology, Год журнала: 2022, Номер 57(1), С. 770 - 779

Опубликована: Дек. 13, 2022

Despite green tides (or macroalgal blooms) having multiple negative effects, it is thought that they have a positive effect on carbon sequestration, although this aspect rarely studied. Here, during the world's largest tide (caused by Ulva prolifera) in Yellow Sea, concentration of dissolved organic (DOC) increased 20-37% intensive areas, and thousands new molecular formulas rich CHNO CHOS were introduced. The DOC species derived from U. prolifera constituted ∼18% total seawater bloom area, indicating profound shaping coastal DOC. In addition, 46% macroalgae-derived was labile (LDOC), which had only short residence time due to rapid microbial utilization. remaining 54% recalcitrant (RDOC) humic-like substances, polycyclic aromatics, highly aromatic compounds resisted degradation therefore potential play role long-term sequestration. Notably, source analysis showed addition pump, macroalgae are also an important RDOC. number RDOC contributed even exceed (77 vs 23%) microorganisms.

Язык: Английский

Процитировано

27