Association of marine viral and bacterial communities with reference black carbon particles under experimental conditions: an analysis with scanning electron, epifluorescence and confocal laser scanning microscopy

Cattaneo, Raffaela; Rouvière, Christian; Rassoulzadegan, Fereidoun; Weinbauer, Markus G.

doi:10.1111/j.1574-6941.2010.00953.x

Cited by 25 publications

(27 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The majority of BC reference material particles are within the size range of 1.5 to 4 µm equivalent spherical diameter (ESD). Details on the size distribution of SRM 2975 are given by Cattaneo et al (2010).…”

Section: Experimental Set-upmentioning

confidence: 99%

“…Associations between BC particles, bacteria, and viruses were investigated by epifluorescence and confocal laser scanning microscopy (CLSM), respectively, in experiment BC-grad following the protocol of Cattaneo et al (2010). The size and number of colonized particles were high enough to allow enumeration only in the treatment with the addition of BC at the highest concentration (2000 µg l −1 ).…”

Section: Bc Particle Size and Attachment Of Viruses And Bacteriamentioning

confidence: 99%

“…These thermogenic compounds are chemically heterogeneous and are all characterized by high carbon content and aromatic structures, which are particularly resistant to biodegradation (Goldberg 1985, Schmidt & Noack 2000. BC particles constitute aggregates of small carbon spheres (Cattaneo et al 2010), whose fractal morphology, i.e. their high porosity, offers an important surface area for the adsorption of organic matter , Koelmans et al 2006.…”

Section: Introductionmentioning

confidence: 99%

“…It has been demonstrated that BC reference material rapidly adsorbs viruses and bacteria (Cattaneo et al 2010) and stimulates the aggregation of organic particles and bacterial production (Mari et al 2014). Also, there is evidence that BC can have an influence on viral and bacterial diversity (Cattaneo et al 2010, Weinbauer et al 2012.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Potential impacts of black carbon on the marine microbial community

Malits¹,

Cattaneo²,

Sintes³

et al. 2015

Aquat. Microb. Ecol.

View full text Add to dashboard Cite

Black carbon (BC) is the carbonaceous residue of the incomplete combustion of fossil fuels and biomass and encompasses a range of chemically heterogeneous substances from partly charred plant material to highly condensed soot aerosols. We addressed the potential role of BC aerosol deposition on marine microbial processes in the ocean by investigating the effects of BC reference material (and its exposure to simulated solar radiation) on viral and bacterial activity in batch cultures with aged seawater. Viruses and bacteria were rapidly adsorbed to BC. No difference between the effect of irradiated and non-irradiated BC on free viral parameters was observed. Bacterial leucine incorporation was higher in the BC treatments than in the BC-free controls. The stimulated bacterial production in the dark BC treatments might be caused by the reduction of viral infection due to adsorption of organic material or by direct use of BC material. Viral production was significantly lower in BC-amended treatments than in BC-free controls, and the estimated fraction of infected cells decreased with increasing BC concentration. Moreover, bacterial activity in the solar-radiation-exposed BC treatments was higher than in the dark BC treatments, indicating that radiation made BC more accessible to bacteria. Our data reveal that BC has the potential to stimulate bacterial activity in the water column, particularly after exposure to solar radiation. Rising BC levels in the atmosphere due to increasing anthropogenic emissions could have far-reaching effects, including potential stimulation of seawater heterotrophy and CO 2 production, through its effects on bacteria and viruses.

show abstract

Section: Experimental Set-upmentioning

confidence: 99%

Section: Bc Particle Size and Attachment Of Viruses And Bacteriamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Potential impacts of black carbon on the marine microbial community

Malits¹,

Cattaneo²,

Sintes³

et al. 2015

Aquat. Microb. Ecol.

View full text Add to dashboard Cite

show abstract

“…There is also recent indication that black carbon, i.e. the incomplete combustion of fossil fuels and biomass, influences the performance of marine microbial food webs (Cattaneo et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Autotrophic and heterotrophic metabolism of microbial planktonic communities in an oligotrophic coastal marine ecosystem: seasonal dynamics and episodic events

et al. 2010

View full text Add to dashboard Cite

Abstract. A 18 month study was performed in the Bay of Villefranche to assess the episodic and seasonal variation of autotrophic and heterotrophic ecosystem processes. A typical spring bloom was encountered, where maximum of gross primary production (GPP) was followed by maxima of bacterial respiration (BR) and production (BP). The trophic balance (heterotrophy vs. autotrophy) of the system did not exhibit any seasonal trend although a strong intraannual variability was observed. On average, the community tended to be net heterotrophic with a GPP threshold for a balanced metabolism of 1.1 µmol O 2 l −1 d −1 . Extended forest fires in summer 2003 and a local episodic upwelling in July 2003 likely supplied orthophosphate and nitrate into the system. These events were associated with an enhanced bacterioplankton production (up to 2.4-fold), respiration (up to 4.5-fold) and growth efficiency (up to 2.9-fold) but had no effect on GPP. A Sahara dust wet deposition event in February 2004 stimulated bacterial abundance, production and growth efficiency but not GPP. Our study suggests that short-term disturbances such as wind-driven upwelling, forest fires and Sahara dust depositions can have a significant but previously not sufficiently considered influence on phytoplanktonand bacterioplankton-mediated ecosystem functions and can modify or even mask the seasonal dynamics. The study also indicates that atmospheric deposition of nutrients and particles not only impacts phytoplankton but also bacterioplankton and could, at times, also shift systems stronger towards net heterotrophy.

show abstract

Effects of soot deposition on particle dynamics and microbial processes in marine surface waters

Mari

Lefêvre

Torréton

et al. 2014

Global Biogeochemical Cycles

Self Cite

View full text Add to dashboard Cite

Large amounts of soot are continuously deposited on the global ocean. Even though significant concentrations of soot particles are found in marine waters, the effects of these aerosols on ocean ecosystems are currently unknown. Using a combination of in situ and experimental data, and results from an atmospheric transport model, we show that the deposition of soot particles from an oil-fired power plant impacted biogeochemical properties and the functioning of the pelagic ecosystem in tropical oligotrophic oceanic waters off New Caledonia. Deposition was followed by a major increase in the volume concentration of suspended particles, a change in the particle size spectra that resulted from a stimulation of aggregation processes, a 5% decrease in the concentration of dissolved organic carbon (DOC), a decreases of 33 and 23% in viral and free bacterial abundances, respectively, and a factor~2 increase in the activity of particle-attached bacteria suggesting that soot introduced in the system favored bacterial growth. These patterns were confirmed by experiments with natural seawater conducted with both soot aerosols collected in the study area and standard diesel soot. The data suggest a strong impact of soot deposition on ocean surface particles, DOC, and microbial processes, at least near emission hot spots.

show abstract

Association of marine viral and bacterial communities with reference black carbon particles under experimental conditions: an analysis with scanning electron, epifluorescence and confocal laser scanning microscopy

Cited by 25 publications

References 61 publications

Potential impacts of black carbon on the marine microbial community

Potential impacts of black carbon on the marine microbial community

Autotrophic and heterotrophic metabolism of microbial planktonic communities in an oligotrophic coastal marine ecosystem: seasonal dynamics and episodic events

Effects of soot deposition on particle dynamics and microbial processes in marine surface waters

Contact Info

Product

Resources

About