Abstract:
:Subsurface removal of arsenic by injection with oxygenated groundwater has been proposed as a viable technology for obtaining 'safe' drinking water in Bangladesh. While the oxidation of ferrous iron to solid ferric iron minerals, to which arsenic adsorbs, is assumed to be driven by abiotic reactions, metal-cycling microorganisms may potentially affect arsenic removal. A cultivation-independent survey covering 24 drinking water wells in several geographical regions in Bangladesh was conducted to obtain information on microbial community structure and diversity in general, and on specific functional groups capable of the oxidation or reduction of arsenic or iron. Each functional group, targeted by either group-specific 16S rRNA or functional gene amplification, occurred in at least 79% of investigated samples. Putative arsenate reducers and iron-oxidizing Gallionellaceae were present at low diversity, while more variation in potentially arsenite-oxidizing microorganisms and iron-reducing Desulfuromonadales was revealed within and between samples. Relations between community composition on the one hand and hydrochemistry on the other hand were in general not evident, apart from an impact of salinity on iron-cycling microorganisms. Our data suggest widespread potential for a positive contribution of arsenite and iron oxidizers to arsenic removal upon injection with oxygenated water, but also indicate a potential risk for arsenic re-mobilization by anaerobic arsenate and iron reducers once injection is halted.
journal_name
FEMS Microbiol Ecoljournal_title
FEMS microbiology ecologyauthors
Hassan Z,Sultana M,van Breukelen BM,Khan SI,Röling WFdoi
10.1093/femsec/fiv026subject
Has Abstractpub_date
2015-04-01 00:00:00issue
4eissn
0168-6496issn
1574-6941pii
fiv026journal_volume
91pub_type
杂志文章abstract::In the present study, it was sought to compare yeast microbiota of wild and captive Macrobrachium amazonicum and evaluate the antifungal susceptibility and production of virulence factors by the recovered isolates of Candida spp. Additionally, cultivation water was monitored for the presence of fungi. Overall, 26 yeas...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2011.01050.x
更新日期:2011-05-01 00:00:00
abstract::Bacterial diversity is believed to be controlled both by bottom-up and top-down mechanisms such as nutrient competition, predation and viral lysis. We hypothesise that lytic viruses create trophic niches within bacterial communities, and thus primarily control richness and evenness, while substrate composition primari...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01463.x
更新日期:2013-01-01 00:00:00
abstract::Although experiments indicate that the abiotic environment plays an important role in bacterial interactions with their parasitic viruses (bacteriophages or phages), it is not yet clear how exposure to compounds present in nature alters the impact of phages on bacterial growth and evolution. To address this question, ...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiw211
更新日期:2017-01-01 00:00:00
abstract::Methane production was studied in an Italian rice field over two consecutive years (1998, 1999) by measuring the rates of total and acetate-dependent methanogenesis in soil and root samples. Population dynamics of methanogens were followed by terminal restriction fragment length polymorphism and real-time PCR targetin...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1016/j.femsec.2004.09.004
更新日期:2005-02-01 00:00:00
abstract::Anthropogenic hyperalkaline sites provide an environment that is analogous to proposed cementitious geological disposal facilities (GDF) for radioactive waste. Under anoxic, alkaline conditions cellulosic wastes will hydrolyze to a range of cellulose degradation products (CDP) dominated by isosaccharinic acids (ISA). ...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiv085
更新日期:2015-08-01 00:00:00
abstract::Matrix-embedded, surface-attached microbial communities, known as biofilms, profusely colonise industrial cooling water systems, where the availability of nutrients and organic matter favours rapid microbial proliferation and their adhesion to surfaces in the evaporative fill material, heat exchangers, water reservoir...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章,评审
doi:10.1093/femsec/fiy044
更新日期:2018-05-01 00:00:00
abstract::Bacillus pumilus is a Gram-positive bacterium with a wide range of attributed applications, namely as a plant growth promoting rhizobacteria (PGPR), animal, and human probiotic. However, a rare putative role in human diseases has been reported, namely in food poisoning or as anthrax-like cutaneous infectious agent. Th...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/1574-6941.12426
更新日期:2014-12-01 00:00:00
abstract::Coral reefs are among the most productive ecosystems on the planet, but are rapidly declining due to global-warming-mediated changes in the oceans. Particularly for the Caribbean region, Acropora sp. stony corals have lost ∼80% of their original coverage, resulting in vast extensions of dead coral rubble. We analyzed ...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiv162
更新日期:2016-01-01 00:00:00
abstract::A yearlong study was conducted to determine factors that affect the abundance and distribution of lysogens and free viruses at fresh-, brackish-, and saltwater stations in Newport Bay, CA. The viral and bacterial abundance were highest in the freshwater (average 1.1 x 10(8) and 1.1 x 10(7) mL(-1), respectively) and lo...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2009.00705.x
更新日期:2009-08-01 00:00:00
abstract::This study tests the hypothesis that altering the mineral composition of soil influences microbial community structure in a nutrient-deficient soil. Microcosms were established by adding mica (M), basalt (B) and rock phosphate (P) to soil separately, and in combination (MBP), and by planting with Lolium rigidum, Trifo...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2007.00361.x
更新日期:2007-09-01 00:00:00
abstract::Abstract Peucedanum alsaticum and Peucedanum cervaria represent characteristic umbellifers (Apiaceae) of calcareous grasslands in Central and Eastern Europe. Both accumulate glucose, fructose, mannitol and sucrose as dominant carbohydrates in their roots. The objective of the study was to determine if endophytes utili...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2002.tb00977.x
更新日期:2002-08-01 00:00:00
abstract::Abstract The protocol used in the present study was a long-term mesocosm experiment where the microbial succession around live barley roots and subsequent decomposing roots was assessed after seed coating with either the antagonistic strain Pseudomonas fluorescens DR54-BN14 or the fungicide imazalil. Four diversity me...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2003.tb01079.x
更新日期:2003-04-01 00:00:00
abstract::A roundtable discussion held at the fourth International Symposium on the Environmental Dimension of Antibiotic Resistance (EDAR4) considered key issues concerning the impact on the environment of antibiotic use in agriculture and aquaculture, and emissions from antibiotic manufacturing. The critical control points fo...
journal_title:FEMS microbiology ecology
pub_type: 共识发展会议,杂志文章
doi:10.1093/femsec/fix185
更新日期:2018-03-01 00:00:00
abstract::The abilities of some ascomycetes (Myxotrichaceae) from a Sphagnum bog in Alberta to degrade cellulose, phenolics, and Sphagnum tissue were compared with those of two basidiomycetes. Most Myxotrichaceae degraded cellulose and tannic acid, and removed cell-wall components simultaneously from Sphagnum tissues, whereas t...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2006.00071.x
更新日期:2006-06-01 00:00:00
abstract::Isolates of ectomycorrhizal Pisolithus albus were sampled from both ultramafic and volcano-sedimentary soils in New Caledonia, a tropical hotspot of biodiversity, to investigate the relationships between genetic diversity and edaphic constraint through tolerance to nickel (Ni). Carpophore description, spore morphology...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2010.00843.x
更新日期:2010-05-01 00:00:00
abstract::The advent of next-generation sequencing has allowed huge amounts of DNA sequence data to be produced, advancing the capabilities of microbial ecosystem studies. The current challenge is to identify from which microorganisms and genes the DNA originated. Several tools and databases are available for annotating DNA seq...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiw095
更新日期:2016-07-01 00:00:00
abstract::The biology and biochemistry of plasmid transfer in soil bacteria is currently under active investigation because of its central role in prokaryote adaptation and evolution. In this work, we examined the conjugal properties of the cryptic plasmids present in a collection of the N(2)-fixing legume-symbiont Sinorhizobiu...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2008.00509.x
更新日期:2008-09-01 00:00:00
abstract::The microbial community structure was investigated together with the path of methane production in Italian rice field soil incubated at moderate (35 degrees C) and high (45 degrees C) temperature using terminal restriction fragment length polymorphism and stable isotope fractionation. The structure of both the archaea...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2010.00883.x
更新日期:2010-08-01 00:00:00
abstract::Abstract The impact of salinity on the composition and functional performance (biomass production, growth efficiency and growth rates) of bacterial communities was investigated using batch cultures growing on dissolved organic carbon from a river draining into the Northern Baltic Sea. The cultures were adjusted to riv...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1016/S0168-6496(03)00149-1
更新日期:2003-07-01 00:00:00
abstract::Bacterioplankton play a pivotal role in marine ecosystems. However, their temporal dynamics and underlying control mechanisms are poorly understood in tropical regions such as the Red Sea. Here, we assessed the impact of bottom-up (resource availability) and top-down (viruses and heterotrophic nanoflagellates) control...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa033
更新日期:2020-04-01 00:00:00
abstract::The development of nitrogen-fixing nodules of the Rhizobium-legume symbiosis, especially the early stages of root hair deformation and curling, infection thread formation, and nodule initiation, has been well studied from a genetic standpoint. In contrast, the factors important for the colonization of surfaces by rhiz...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2005.00044.x
更新日期:2006-05-01 00:00:00
abstract::A field-scale manipulation experiment conducted for 16 years in a Norway spruce forest at Solling, Central Germany, was used to follow the long-term response of total soil bacteria, nitrate reducers and denitrifiers under conditions of reduced N deposition. N was experimentally removed from throughfall by a roof const...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2008.00632.x
更新日期:2009-03-01 00:00:00
abstract::Managed agricultural ecosystems are unique systems where crops and microbes are intrinsically linked. This study focuses on discerning microbiome successional patterns across all plant organs and tests for evidence of niche differentiation along temporal and spatial axes. Soybean plants were grown in an environmental ...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiaa206
更新日期:2021-01-08 00:00:00
abstract::Methane is used as an alternative carbon source in the denitrification of wastewater lacking organic carbon sources because it is nontoxic and may be efficiently produced by anaerobic biological processes. Methane-dependent denitrification (MDD) in the presence of oxygen requires the co-occurrence of methanotrophy and...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2008.00473.x
更新日期:2008-06-01 00:00:00
abstract::Abstract The bacterial activity in sediments is often low considering the generally high bacterial abundance. Still, a large fraction of bacteria have been found active even in deep sediments. These findings suggest that sediment bacteria have comparatively low cell-specific production. We studied bacterial activity a...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1016/S0168-6496(03)00190-9
更新日期:2003-10-01 00:00:00
abstract::Glacial ice and snow are known habitats for cold-adapted microorganisms. Research on cold-adapted yeast biodiversity from Perito Moreno and Mount Tronador glaciers (Patagonia, Argentina), and production of extracellular enzymatic activity at low temperatures (5 and 18 °C), was performed and described in this study. Ni...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2012.01470.x
更新日期:2012-11-01 00:00:00
abstract::In view of their key roles in many soil- and plant-related processes, we hypothesized that soil microorganisms could play a larger role in determining wheat baking quality than nitrogen fertilization. A field experiment was conducted under bread wheat production conditions, where different fertilization treatments, ra...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1093/femsec/fiz205
更新日期:2020-02-01 00:00:00
abstract::The involvement of microbial interactions in natural transformation of bacteria was evaluated using an aquatic model system. For this purpose, the naturally transformable Bacillus subtilis was used as the model bacterium which was co-cultivated with the protist Tetrahymena thermophila (a consumer) and/or the photosynt...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1016/S0168-6496(03)00148-X
更新日期:2003-08-01 00:00:00
abstract::The annually reoccurring blooms that characterize the surface waters of the Baltic Sea are dominated by filamentous, heterocystous cyanobacteria such as Nodularia spumigena. In a previous study, we have demonstrated that N. spumigena strain AV1 differentiates heterocysts in the absence of detectable nitrogen fixation ...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2011.01127.x
更新日期:2011-08-01 00:00:00
abstract::The effect of a brief (24 h) temperature shift to 4 degrees C (low-temperature stress) or 50 degrees C (high-temperature stress) was studied in methanogenic slurries of Italian rice field soil incubated at either constant 30 degrees C or 15 degrees C. Low-temperature (low-T) stress showed no effect in either the 30 de...
journal_title:FEMS microbiology ecology
pub_type: 杂志文章
doi:10.1111/j.1574-6941.2002.tb00923.x
更新日期:2002-03-01 00:00:00