Triggers, cascades, and endpoints: connecting the dots of coral bleaching mechanisms

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2024, Volume and Issue: 99(3), P. 715 - 752

Published: Jan. 12, 2024

ABSTRACT The intracellular coral–dinoflagellate symbiosis is the engine that underpins success of coral reefs, one most diverse ecosystems on planet. However, breakdown and loss microalgal symbiont (i.e. bleaching) due to environmental changes are resulting in rapid degradation reefs globally. There an urgent need understand cellular physiology bleaching at mechanistic level help develop solutions mitigate reef crisis. Here, unprecedented scope, we present novel models integrate putative mechanisms within a common framework according triggers (initiators bleaching, e.g. heat, cold, light stress, hypoxia, hyposalinity), cascades (cellular pathways, photoinhibition, unfolded protein response, nitric oxide), endpoints (mechanisms loss, apoptosis, necrosis, exocytosis/vomocytosis). supported by direct evidence from cnidarian systems, indirectly through comparative evolutionary analyses non‐cnidarian systems. With this approach, new have been established between initiated different triggers. In particular, provide insights into poorly understood connections highlight role mechanism i.e. ‘symbiolysosomal digestion’, which symbiophagy. This review also increases approachability for specialists non‐specialists mapping vast landscape atlas comprehensible detailed models. We then discuss major knowledge gaps how future research may improve understanding cascade pathways (endpoints).

Language: Английский

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Metal-organic framework (MOF) derived In2O3 and g-C3N4 composite for superior NOx gas-sensing performance at room temperature

Sensors and Actuators B Chemical, Journal Year: 2021, Volume and Issue: 352, P. 131001 - 131001

Published: Oct. 27, 2021

Language: Английский

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Water quality thresholds for coastal contaminant impacts on corals: A systematic review and meta-analysis

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 794, P. 148632 - 148632

Published: June 23, 2021

Language: Английский

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Cropland degradation and nutrient overload on Hainan Island: A review and synthesis

Environmental Pollution, Journal Year: 2022, Volume and Issue: 313, P. 120100 - 120100

Published: Sept. 5, 2022

Language: Английский

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A critical review on the effect of nitrate pollution in aquatic invertebrates and fish

Water Air & Soil Pollution, Journal Year: 2023, Volume and Issue: 234(6)

Published: May 17, 2023

Language: Английский

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Including environmental and climatic considerations for sustainable coral reef restoration

PLoS Biology, Journal Year: 2024, Volume and Issue: 22(3), P. e3002542 - e3002542

Published: March 19, 2024

Coral reefs provide ecosystem benefits to millions of people but are threatened by rapid environmental change and ever-increasing human pressures. Restoration is becoming a priority strategy for coral reef conservation, yet implementation remains challenging it increasingly apparent that indirect conservation restoration approaches will not ensure the long-term sustainability reefs. The important role conditions in practice currently undervalued, carrying substantial implications success. Giving paramount importance conditions, particularly during pre-restoration planning phase, has potential bring about considerable improvements innovation. This Essay argues risk may be reduced adopting an environmentally aware perspective gives historical, contemporary, future context decisions. Such approach open up new opportunities with improved have capacity dynamically respond trajectories.

Language: Английский

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Environmental Concentrations of Herbicide Prometryn Render Stress-Tolerant Corals Susceptible to Ocean Warming

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(10), P. 4545 - 4557

Published: Feb. 22, 2024

Global warming has caused the degradation of coral reefs around world. While stress-tolerant corals have demonstrated ability to acclimatize ocean warming, it remains unclear whether they can sustain their thermal resilience when superimposed with other coastal environmental stressors. We report combined impacts a photosystem II (PSII) herbicide, prometryn, and on Galaxea fascicularis through physiological omics analyses. The results demonstrate that heat-stress-induced inhibition photosynthetic efficiency in G. is exacerbated presence prometryn. Transcriptomics metabolomics analyses indicate prometryn exposure may overwhelm repair mechanism corals, thereby compromising capacity for acclimation. Moreover, might amplify adverse effects heat stress key energy nutrient metabolism pathways induce stronger response oxidative corals. findings at environmentally relevant concentrations would render more susceptible exacerbate breakdown Symbiodiniaceae symbiosis. present study provides valuable insights into necessity prioritizing PSII herbicide pollution reduction reef protection efforts while mitigating climate change.

Language: Английский

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Response of coral bacterial composition and function to water quality variations under anthropogenic influence

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 884, P. 163837 - 163837

Published: May 1, 2023

Language: Английский

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Quantifying the ecological consequences of climate change in coastal ecosystems

Cambridge Prisms Coastal Futures, Journal Year: 2023, Volume and Issue: 1

Published: Jan. 1, 2023

Abstract Few coastal ecosystems remain untouched by direct human activities, and none are unimpacted anthropogenic climate change. These drivers interact with exacerbate each other in complex ways, yielding a mosaic of ecological consequences that range from adaptive responses, such as geographic shifts changes phenology, to severe impacts, mass mortalities, regime loss biodiversity. Identifying the role change these phenomena requires corroborating evidence multiple lines evidence, including laboratory experiments, field observations, numerical models palaeorecords. Yet few studies can confidently quantify magnitude effect attributable solely change, because seldom acts alone ecosystems. Projections future risk further complicated scenario uncertainty – is, our lack knowledge about degree which humanity will mitigate greenhouse-gas emissions, or make ways we impact Irrespective, ocean warming would be impossible reverse before end century, sea levels likely continue rise for centuries elevated millennia. Therefore, risks projected mirror impacts already observed, severity escalating cumulative emissions. Promising avenues progress beyond qualitative assessments include collaborative modelling initiatives, model intercomparison projects, use broader systems. But reduce rapidly reducing emissions greenhouse gases, restoring damaged habitats, regulating non-climate stressors using climate-smart conservation actions, implementing inclusive coastal-zone management approaches, especially those involving nature-based solutions.

Language: Английский

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Drivers of coastal benthic communities in a complex environmental setting

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 203, P. 116462 - 116462

Published: May 14, 2024

Language: Английский

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