Will free-living microbial community composition drive biogeochemical responses to global change?

Yang, Philip F.; Spanier, Nicole; Aldredge, Parker; Shahid, Nabiha; Coleman, Ashley; Lyons, Jordan; Langley, J. Adam

doi:10.1007/s10533-023-01015-0

Cited by 9 publications

(5 citation statements)

References 208 publications

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“…The consequences of these shifts might include negative impacts on DOM biodegradation rates and the efficiency of the bacterial communities in producing biomass, potentially disrupting alpine and subarctic lake food webs and carbon cycling. Yet, an intriguing possibility arises from the potential adaptation and evolution of microbial communities, both in catchment soils and lake water, at faster timescales than global changes 42 . Such adaptations could alter ecosystem-scale biogeochemical trajectories, offering a glimpse into potential resilience within these ecosystems amidst shifting environmental dynamics.…”

Section: Resultsmentioning

confidence: 99%

Treeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes

Catalán,

Rofner,

Verpoorter

et al. 2024

Nat Commun

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Climate change induced shifts in treeline position, both towards higher altitudes and latitudes induce changes in soil organic matter. Eventually, soil organic matter is transported to alpine and subarctic lakes with yet unknown consequences for dissolved organic matter (DOM) diversity and processing. Here, we experimentally investigate the consequences of treeline shifts by amending subarctic and temperate alpine lake water with soil-derived DOM from above and below the treeline. We use ultra-high resolution mass spectrometry (FT-ICR MS) to track molecular DOM diversity (i.e., chemodiversity), estimate DOM decay and measure bacterial growth efficiency. In both lakes, soil-derived DOM from below the treeline increases lake DOM chemodiversity mainly through the enrichment with polyphenolic and highly unsaturated compounds. These compositional changes are associated with reductions in bulk and compound-level DOM reactivity and reduced bacterial growth efficiency. Our results suggest that treeline advancement has the potential to enrich a large number of lake ecosystems with less biodegradable DOM, affecting bacterial community function and potentially altering the biogeochemical cycling of carbon in lakes at high latitudes and altitudes.

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Section: Resultsmentioning

confidence: 99%

Treeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes

Catalán,

Rofner,

Verpoorter

et al. 2024

Nat Commun

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“…Bacteria respond rapidly to environmental changes, such as hydrocarbon contamination due to installation and production activity around platforms, with a corresponding increase in hydrocarbon degrading bacteria and petrogenic polycyclic aromatic hydrocarbons (PAHs) [46]. Microbial community responses tend to be rapid (hours or days) compared to higher trophic levels [47], and crude oil consists of a mix of hydrocarbons and other compounds, including heavy metals [48], which will impact benthic microbial diversity. Most studies on benthic or microbial biodiversity in response to oil and gas activity have focused on acute pollution events [12], such as the Deepwater Horizon disaster [49], and not on the continuous chronic effect of the presence, or disturbance through removal, of the artificial structures on the surrounding seabed.…”

Section: Epifauna and Benthosmentioning

confidence: 99%

Haven or hell? A perspective on the ecology of offshore oil and gas platforms

Fortune,

Madgett,

Scarborough Bull

et al. 2024

PLOS Sustain Transform

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Offshore oil and gas platforms (OGP) have been installed worldwide and initially with limited consideration given to the nature of their positive or negative long-term interactions with the natural marine habitats. However, as OGP reach the end of their useful life, with many being decommissioned and removed, it is timely to review the growing evidence of the association of marine biota with OGP to provide a summary and synthesis for policy makers and to give insight to decisions in increasingly crowded marine spatial plans. In the last decade, there has been rapid increase in studies concerning the ecological role of OGP. This research reveals strong contextual difference between platforms in different geographical regions, but all OGP add to local biodiversity particularly where hard substrata are introduced to areas dominated by depositional (mud and sand) habitats. This includes the attraction and increased productivity of fish, sessile invertebrates, and algae while also affecting change in the benthic habitats beneath platforms. There also evidence of the OGP changing local hydrodynamics conditions with effects on phytoplankton and local scour. In terms of the biota associated with OGP, water depth is a major driver of community type across systems. This study emphasises that while knowledge of OGP communities and species has improved, there are still significant knowledge gaps that may prevent the most environmentally beneficial decisions being made around decommissioning. There are few studies following the effect of decommissioning (topping, toppling, or removal) on the ecology of the systems as they change with time (longitudinal research) for the decommissioning event. There is also a need for more studies comparing the biodiversity and functionality of OGP system to artificial and natural reefs and habitats to better understand the ecological cost-benefit of decommissioning scenarios. Finally, commercial data is often unavailable and even when available, surveys are often conducted using varied methodology that prevents comparative analysis. By imposing/agreeing standards and sharing data around the ecological cost-benefit of decommissioning strategies, improve policy guidance concerning OGP planning, and management might emerge.

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“…In comparison to fungi, bacteria are abundant in soil. Although previous studies have explored the capacity of fungi to sequester carbon than bacteria, some bacterial strains possess the capability of reducing CO 2 and hence could help with carbon sequestration and CO 2 mitigation (Han et al, 2013; Komala & Khun, 2014; Li et al, 2015; Nie et al, 2015; Six et al, 2006; Yang et al, 2023). This suggests that bacteria would further participate in sequestering carbon via a variety of metabolic mechanisms and processes.…”

Section: Microbial Inoculants For Carbon Sequestrationmentioning

confidence: 99%

Harnessing the power of microbes for sustainable development: Climate change mitigation and sustainable food security

Ahmed,

McKay

2023

Ecological Research

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The effects of releasing carbon from the terrestrial pool into the atmosphere have significant long‐term and short‐term implications that affect many parts of our globe. Agricultural fields might help to address these concerns and provide cost‐effective solutions, such as lowering carbon dioxide levels (CO2) in the atmosphere while raising carbon levels in the soil. In order to increase agricultural land's potential to absorb and store carbon, the proper selection of suitable microbial inoculants with the capability to sequester carbon into soils is critical. Soil quality and characteristics would improve as a result, and atmospheric carbon would therefore be reduced. Soil microbes have the potential to influence the level of organic matter, which has an impact on the soil's ecological system and characteristics. Soil microbes play a role in carbon sequestration in soils by regulating multiple and distinct pathways for CO2 inputs and losses, such as biochemical processes that could sequester CO2, the capacity to sediment carbonates, the rigid nature of their components and vegetative tissues, or the composition of complex substances that preserve carbon in the soil. Further research is needed to investigate if particular microbial strains that can sequester carbon will help enhance soil quality and prevent climate change.

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Will free-living microbial community composition drive biogeochemical responses to global change?

Cited by 9 publications

References 208 publications

Treeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes

Treeline displacement may affect lake dissolved organic matter processing at high latitudes and altitudes

Haven or hell? A perspective on the ecology of offshore oil and gas platforms

Harnessing the power of microbes for sustainable development: Climate change mitigation and sustainable food security

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