Rhodoferax ferrireducens sp. nov., a psychrotolerant, facultatively anaerobic bacterium that oxidizes acetate with the reduction of Fe(III)

Finneran, Kevin T.

doi:10.1099/ijs.0.02298-0

Cited by 346 publications

(237 citation statements)

References 27 publications

Supporting

Mentioning

224

Contrasting

Unclassified

Order By: Relevance

“…The sequence of the other DGGE band obtained from the same sample was closely related to that of another Fe(III)-reducing bacterium Rhodoferax ferrireducens (6). These data suggest the presence of an unknown specific interaction between Thioploca and Fe(III)-reducing bacteria.…”

Section: Phylogenetic Affiliations Of Sheath-associated Bacteriamentioning

confidence: 54%

Community Structure of Bacteria Associated with Sheaths of Freshwater and Brackish Thioploca Species

2006

View full text Add to dashboard Cite

Bacterial communities associated with sheaths of Thioploca spp. from two freshwater lakes (Lake Biwa, Japan, and Lake Constance, Germany) and one brackish lake (Lake Ogawara, Japan) were analyzed with denaturing gradient gel electrophoresis (DGGE) of 16S rRNA gene fragments. The comparison between the DGGE band patterns of bulk sediment and Thioploca filaments of Lake Biwa suggested the presence of specific bacterial communities associated with Thioploca sheaths. As members of sheath-associated communities, bacteria belonging to Bacteroidetes were detected from the samples of both freshwater lakes. A DGGE band from Thioploca of Lake Biwa, belonging to candidate division OP8, was quite closely related to another DGGE band detected from that of Lake Constance. In contrast to the case of freshwater lakes, no bacterium of Bacteroidetes or OP8 was detected from Thioploca of Lake Ogawara.However, two DGGE bands from Lake Ogawara, belonging to Chloroflexi, were quite closely related to a DGGE band from Lake Constance. Two DGGE bands obtained from Lake Biwa were closely related to phylogenetically distant dissimilatory

show abstract

Section: Phylogenetic Affiliations Of Sheath-associated Bacteriamentioning

confidence: 54%

Community Structure of Bacteria Associated with Sheaths of Freshwater and Brackish Thioploca Species

2006

View full text Add to dashboard Cite

show abstract

“…It was most abundant in June and in the top part of the sediment column section and it showed a significant positive correlation with Phyto_PUFA. It was 100% identical to Rhodoferax ferrireducens, strain T118, an iron reducing nonfermenting facultative aerobe that can also use iron nitrate and Mn(IV) oxide as electron acceptor (Finneran et al, 2003) and several smaller organic acids (for example, acetate, lactate and butyrate) as electron donors.…”

Section: Discussionmentioning

confidence: 96%

River organic matter shapes microbial communities in the sediment of the Rhône prodelta

et al. 2014

View full text Add to dashboard Cite

Microbial-driven organic matter (OM) degradation is a cornerstone of benthic community functioning, but little is known about the relation between OM and community composition. Here we use Rhô ne prodelta sediments to test the hypothesis that OM quality and source are fundamental structuring factors for bacterial communities in benthic environments. Sampling was performed on four occasions corresponding to contrasting river-flow regimes, and bacterial communities from seven different depths were analyzed by pyrosequencing of 16S rRNA gene amplicons. The sediment matrix was characterized using over 20 environmental variables including bulk parameters (for example, total nitrogen, carbon, OM, porosity and particle size), as well as parameters describing the OM quality and source (for example, pigments, total lipids and amino acids and d 13 C), and molecular-level biomarkers like fatty acids. Our results show that the variance of the microbial community was best explained by d 13 C values, indicative of the OM source, and the proportion of saturated or polyunsaturated fatty acids, describing OM lability. These parameters were traced back to seasonal differences in the river flow, delivering OM of different quality and origin, and were directly associated with several frequent bacterial operational taxonomic units. However, the contextual parameters, which explained at most 17% of the variance, were not always the key for understanding the community assembly. Co-occurrence and phylogenetic diversity analysis indicated that bacteria-bacteria interactions were also significant. In conclusion, the drivers structuring the microbial community changed with time but remain closely linked with the river OM input.

show abstract

“…Genera in the Comamonadaceae family and neighbouring phylogenetic groups are phenotypically highly diverse, even if they are phylogenetically closely related , so the similarity is not evidence of shared metabolic pathways. Nonetheless it is interesting to note that several species in the closely related genera of Rhodoferax and Hydrogenophaga are facultive anaerobes that can couple oxidation of simple organic molecules such as glucose, lactate and acetate to the reduction of nitrate (Finneran et al 2003;. Thus the dominance of OTU A6 within the bacterial population suggests that it is capable of nitrate reduction.…”

Section: Discussionmentioning

confidence: 99%

Biogeochemical Reduction Processes in a Hyper-Alkaline Leachate Affected Soil Profile

Burke

Mortimer

Palaniyandi

et al. 2012

Geomicrobiology Journal

View full text Add to dashboard Cite

Hyperalkaline surface environments can occur naturally or because of contamination by hydroxide-rich wastes. The high pH produced in these areas has the potential to lead to highly specialised microbial communities and unusual biogeochemical processes. This paper reports an investigation into the geochemical processes that are occurring in a buried, saturated, organicrich soil layer at pH 12.3. The soil has been trapped beneath calcite precipitate (tufa) that is accumulating where highly alkaline leachate from a lime kiln waste tip is emerging to atmosphere. A population of anaerobic alkaliphilic bacteria dominated by a single, unidentified species within the Comamonadaceae family of -proteobacteria has established itself near the top of the soil layer. This bacterial population appears to be capable of nitrate reduction using electron donors derived from the soil organic matter. Below the zone of nitrate reduction a significant proportion of the 0.5N HCl extractable iron (a proxy for microbial available iron) is in the Fe(II) oxidation state indicating there is increasing anoxia with depth and suggesting that microbial iron reduction is occurring.

show abstract

Rhodoferax ferrireducens sp. nov., a psychrotolerant, facultatively anaerobic bacterium that oxidizes acetate with the reduction of Fe(III)

Cited by 346 publications

References 27 publications

Community Structure of Bacteria Associated with Sheaths of Freshwater and Brackish Thioploca Species

Community Structure of Bacteria Associated with Sheaths of Freshwater and Brackish Thioploca Species

River organic matter shapes microbial communities in the sediment of the Rhône prodelta

Biogeochemical Reduction Processes in a Hyper-Alkaline Leachate Affected Soil Profile

Contact Info

Product

Resources

About