Bacterial DGGE fingerprints of biofilms on electrodes of membraneless microbial fuel cells

Cristiani, Pierangela; Franzetti, Andrea; Gandolfi, Isabella; Guerrini, E.; Bestetti, Giuseppina

doi:10.1016/j.ibiod.2012.05.040

Cited by 57 publications

(50 citation statements)

References 26 publications

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“…Also, Enterococcus sp. was reported that could generate electricity in MFC without the providing of an exogenous mediator (Cristiani et al, 2013). Paludibacter, the fermentative bacteria, was also determined with the relative low abundance.…”

Section: Bacterial Taxonomic Identification In Genus Levelmentioning

confidence: 99%

Cathodic bacterial community structure applying the different co-substrates for reductive decolorization of Alizarin Yellow R

Sun

Wang

et al. 2016

Bioresource Technology

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h i g h l i g h t sFeeding with glucose obtained higher AYR decolorization efficiency than acetate. Diverse cathodic bacterial communities were observed with different co-substrates. Glucose-fed condition was dominated with Citrobacter, Enterococcus and Alkaliflexus. Acetate-fed condition was dominated with Acinetobacter and Achromobacter. Co-substrate types impacted performance and the cathodic bacterial communities. a r t i c l e i n f o t r a c tSelective enrichment of cathodic bacterial community was investigated during reductive decolorization of AYR fedding with glucose or acetate as co-substrates in biocathode. A clear distinction of phylotype structures were observed between glucose-fed and acetate-fed biocathodes. In glucose-fed biocathode, Citrobacter (29.2%), Enterococcus (14.7%) and Alkaliflexus (9.2%) were predominant, and while, in acetate-fed biocathode, Acinetobacter (17.8%) and Achromobacter (6.4%) were dominant. Some electroactive or reductive decolorization genera, like Pseudomonas, Delftia and Dechloromonas were commonly enriched. Both of the higher AYR decolorization rate (k AYR = 0.46) and p-phenylenediamine (PPD) generation rate (k PPD = 0.38) were obtained fed with glucose than acetate (k AYR = 0.18; k PPD = 0.16). The electrochemical behavior analysis represented a total resistance in glucose-fed condition was about 73.2% lower than acetate-fed condition. The different co-substrate types, resulted in alteration of structure, richness and composition of bacterial communities, which significantly impacted the performances and electrochemical behaviors during reductive decolorization of azo dyes in biocathode.

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Section: Bacterial Taxonomic Identification In Genus Levelmentioning

confidence: 99%

Cathodic bacterial community structure applying the different co-substrates for reductive decolorization of Alizarin Yellow R

Sun

Wang

et al. 2016

Bioresource Technology

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“…The role of PNS bacteria in the electron transfer mechanisms in SCMFCs was previously reported. PNS were hypothesized to take part in oxygen reduction by a cycling oxidation of sulfide to sulfate through the cathode in a synergistic mechanism together with sulfate-reducing bacteria, described to have a role both in the anodic [34] and in the cathodic EET [41], and spirochetes [11]. Rhodopseudomonas palustris, a PNS bacterium, was also found to be dominant together with Geobacter sulfurreducens in the anodic biofilm of an SCMFC in which power production increased when exposed to high light intensities [42].…”

Section: Figurementioning

confidence: 99%

“…In a previous study a Denaturing Gradient Gel Electrophoresis (DGGE) technique was used to describe both anodic and cathodic communities in Single Chamber MFCs (SCMFCs) fed with acetate dissolved in an inoculum of raw municipal wastewater. The results suggested that the sulfur cycle could have a crucial role in cathodic EET [9][10][11]. Other studies used DGGE for molecular fingerprinting to assess the effect of the sediment matrix, the inoculum [12], the operational time [13], the electron donors [14] and to understand how the taxonomic composition can affect the power density [15].…”

Section: Introductionmentioning

confidence: 99%

Anodic and cathodic microbial communities in single chamber microbial fuel cells

et al. 2015

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“…IR11 also formed matrix with other microorganisms on the anodic biofilm, and it might provide a microenvironment for the growth of anaerobic microorganisms in the MFC reactor in our study. Spirochaetes and Synergistetes are known as candidates for electron shuttle in MFC systems (Cristiani et al, 2013). It might be possible that Candida sp.…”

Section: Comparison Of Bacterial and Archaeal Communities On The Anodmentioning

confidence: 99%

Isolation and characterization of a novel electricity-producing yeast, Candida sp. IR11

Lee

Kim

Cho

2015

Bioresource Technology

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Bacterial DGGE fingerprints of biofilms on electrodes of membraneless microbial fuel cells

Cited by 57 publications

References 26 publications

Cathodic bacterial community structure applying the different co-substrates for reductive decolorization of Alizarin Yellow R

Cathodic bacterial community structure applying the different co-substrates for reductive decolorization of Alizarin Yellow R

Anodic and cathodic microbial communities in single chamber microbial fuel cells

Isolation and characterization of a novel electricity-producing yeast, Candida sp. IR11

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