Effects of temperature and fertilization on the structure of total versus active bacterial communities from sub-Antarctic seawater exposed to crude oil and diesel fuel

Rodríguez-Blanco, Arturo; Duval, Audrey; Pelletier, Émilien; Delille, Daniel; Ghiglione, Jean-François

doi:10.3402/polar.v32i0.18521

Cited by 6 publications

(6 citation statements)

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“…The relatively high background of hydrocarbon degrader microorganisms present in the sediments could suggest contamination at the collection site by accidental marine fuel contamination from the elevated naval traffic in the region, or runoff from fuel contaminated land. In the sediments, indigenous (naturally occurring) microbial community is increasing in numbers and activity when re-exposed to subsequent contamination events (Rodrıguez-Blanco et al, 2013).…”

Section: Increases In Respiration Rates and Hydrocarbon Degrading Micmentioning

confidence: 99%

Input of organic matter enhances degradation of weathered diesel fuel in sub-tropical sediments

Horel

Mortazavi

Sobecky

2015

Science of The Total Environment

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Section: Increases In Respiration Rates and Hydrocarbon Degrading Micmentioning

confidence: 99%

Input of organic matter enhances degradation of weathered diesel fuel in sub-tropical sediments

Horel

Mortazavi

Sobecky

2015

Science of The Total Environment

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“…To avoid this issue, analyses based on RNA are required as well. Studies that aim to analyze bacterial activity by using 16S rRNA transcripts are well established for marine environments ( Wemheuer et al, 2012 , 2014 ; Rodríguez-Blanco et al, 2013 ; Zhang et al, 2014 ; Stibal et al, 2015 ). In soil and other terrestrial environments, however, only a limited number of RNA-based studies are available, which address the effects on land use conversion and showed that entire community analysis alone can lead to false conclusions regarding community activity ( Foesel et al, 2014 ; Herzog et al, 2015 ; Mueller et al, 2016 ; Ragot et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

How Rainforest Conversion to Agricultural Systems in Sumatra (Indonesia) Affects Active Soil Bacterial Communities

et al. 2018

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Palm oil production in Indonesia increased constantly over the last decades, which led to massive deforestation, especially on Sumatra island. The ongoing conversion of rainforest to agricultural systems results in high biodiversity loss. Here, we present the first RNA-based study on the effects of rainforest transformation to rubber and oil palm plantations in Indonesia for the active soil bacterial communities. For this purpose, bacterial communities of three different converted systems (jungle rubber, rubber plantation, and oil palm plantation) were studied in two landscapes with rainforest as reference by RT-PCR amplicon-based analysis of 16S rRNA gene transcripts. Active soil bacterial communities were dominated by Frankiales (Actinobacteria), subgroup 2 of the Acidobacteria and Alphaproteobacteria (mainly Rhizobiales and Rhodospirillales). Community composition differed significantly between the converted land use systems and rainforest reference sites. Alphaproteobacteria decreased significantly in oil palm samples compared to rainforest samples. In contrast, relative abundances of taxa within the Acidobacteria increased. Most important abiotic drivers for shaping soil bacterial communities were pH, calcium concentration, base saturation and C:N ratio. Indicator species analysis showed distinct association patterns for the analyzed land use systems. Nitrogen-fixing taxa including members of Rhizobiales and Rhodospirillales were associated with rainforest soils while nitrifiers and heat-resistant taxa including members of Actinobacteria were associated with oil palm soils. Predicted metabolic profiles revealed that the relative abundances of genes associated with fixation of nitrogen significantly decreased in plantation soils. Furthermore, predicted gene abundances regarding motility, competition or gene transfer ability indicated rainforest conversion-induced changes as well.

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“…The first is based on a cultivationbased approach that has been successfully employed to estimate the number of hydrocarbon-degrading bacteria in situ, as well as in laboratory conditions (Delille et al 2009;Johnsen and Henriksen 2009;Rodríguez-Blanco et al 2013). The second is a more recent molecular technique that quantifies the number of copies of genes responsible for the metabolism of pollutants, such as PAHs (Cebron et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Influence of PAHs among other coastal environmental variables on total and PAH-degrading bacterial communities

Sauret

Tedetti

Guigue

et al. 2015

Environ Sci Pollut Res

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We evaluated the relative impact of anthropogenic polycyclic aromatic hydrocarbons (PAHs) among biogeochemical variables on total, metabolically active, and PAH bacterial communities in summer and winter in surface microlayer (SML) and subsurface seawaters (SSW) across short transects along the NW Mediterranean coast from three harbors, one wastewater effluent, and one nearshore observatory reference site. At both seasons, significant correlations were found between dissolved total PAH concentrations and PAH-degrading bacteria that formed a gradient from the shore to nearshore waters. Accumulation of PAH degraders was particularly high in the SML, where PAHs accumulated. Harbors and wastewater outfalls influenced drastically and in a different way the total and active bacterial community structure, but they only impacted the communities from the nearshore zone (<2 km from the shore). By using direct multivariate statistical analysis, we confirmed the significant effect of PAH concentrations on the spatial and temporal dynamic of total and active communities in this area, but this effect was putted in perspective by the importance of other biogeochemical variables.

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Effects of temperature and fertilization on the structure of total versus active bacterial communities from sub-Antarctic seawater exposed to crude oil and diesel fuel

Abstract: François Ghiglione (2013) Effects of temperature and fertilization on the structure of total versus active bacterial communities from sub-Antarctic seawater exposed to crude oil and diesel fuel, Polar Research, 32:1, 18521,

Cited by 6 publications

References 50 publications

Input of organic matter enhances degradation of weathered diesel fuel in sub-tropical sediments

Input of organic matter enhances degradation of weathered diesel fuel in sub-tropical sediments

How Rainforest Conversion to Agricultural Systems in Sumatra (Indonesia) Affects Active Soil Bacterial Communities

Influence of PAHs among other coastal environmental variables on total and PAH-degrading bacterial communities

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