Oestrogenicity of prenylflavonoids from hops: activation of pro-oestrogens by intestinal bacteria.

abstract：:Pseudomonas aeruginosa produces the toxic secondary metabolite hydrogen cyanide (HCN) at high cell population densities and low aeration. Here, we investigated the impact of HCN as a signal in cell-cell communication by comparing the transcriptome of the wild-type strain PAO1 to that of an HCN-negative mutant under cy...

journal_title：Environmental microbiology reports

authors： Frangipani E,Pérez-Martínez I,Williams HD,Cherbuin G,Haas D

更新日期：2014-02-01 00:00:00

abstract：:A multiplex PCR was developed to detect pre-CTXΦ and CTXΦ in Vibrio cholerae. A total of 115 V. cholerae were tested, of which 42 V. cholerae O1 and 18 V. cholerae O139 contained CTXΦ. Six V. cholerae O139 contained only pre-CTXΦ and three V. cholerae O1 and 23 V. cholerae O139 contained both pre-CTXΦ and CTXΦ. None o...

journal_title：Environmental microbiology reports

authors： Mantri CK,Mohapatra SS,Colwell RR,Singh DV

更新日期：2010-02-01 00:00:00

abstract：:Although cyanobacterial diazotrophs are common in Arctic terrestrial and freshwater habitats, they have been assumed to be absent from Arctic marine habitats. We report here a high diversity of cyanobacterial nifH genes in Fram Strait and the Greenland Sea. The nifH gene encodes the iron protein of the nitrogenase enz...

journal_title：Environmental microbiology reports

authors： Díez B,Bergman B,Pedrós-Alió C,Antó M,Snoeijs P

更新日期：2012-06-01 00:00:00

abstract：:In Pseudomonas species, production of secondary metabolites and exoenzymes is regulated by the GacS/GacA two-component regulatory system. In Pseudomonas fluorescens SBW25, mutations in the Gac-system cause major transcriptional changes and abolished production of the lipopeptide viscosin and of an exoprotease. In cont...

journal_title：Environmental microbiology reports

authors： Cheng X,van der Voort M,Raaijmakers JM

更新日期：2015-02-01 00:00:00

abstract：:Rhizobacteria with biocontrol ability exploit a range of mechanisms to compete successfully with other microorganisms and to ensure their growth and survival in the rhizosphere, ultimately promoting plant growth. The rhizobacterium Serratia plymuthica AS13 is able to promote oilseed rape growth and improve seedling su...

journal_title：Environmental microbiology reports

authors： Neupane S,Finlay RD,Alström S,Elfstrand M,Högberg N

更新日期：2015-02-01 00:00:00

abstract：:In this study, we developed and validated a culture-independent method for diversity surveys to specifically detect endospore-forming Firmicutes. The global transcription regulator of sporulation (spo0A) was identified as a gene marker for endospore-forming Firmicutes. To enable phylogenetic classification, we designe...

journal_title：Environmental microbiology reports

authors： Wunderlin T,Junier T,Roussel-Delif L,Jeanneret N,Junier P

更新日期：2013-12-01 00:00:00

abstract：:Magnetotactic bacteria (MTB) biomineralize intracellular, membrane-bounded crystals of magnetite (Fe3 O4 ) and/or greigite (Fe3 S4 ) called magnetosomes. MTB play important roles in the geochemical cycling of iron, sulfur, nitrogen and carbon. Significantly, they also represent an intriguing model system not just for ...

journal_title：Environmental microbiology reports

authors： Lin W,Pan Y,Bazylinski DA

更新日期：2017-08-01 00:00:00

abstract：:Manganese (Mn) and iron (Fe)-enriched sediment layers were discovered in Lake Superior within, above and below the oxic-anoxic interface. While the role of bacteria in redox reactions with Mn is known to be significant, little information exists about indigenous microbial communities in many freshwater environments. T...

journal_title：Environmental microbiology reports

authors： Palermo C,Dittrich M

更新日期：2016-04-01 00:00:00

abstract：:Provalidator is a web-based tool that facilitates the design and validation of generalized profiles of protein families in prokaryotes. This tool combines the nearly full automation of profile building with a search for family members in all available databases. The tool is useful for assigning a given protein to a sp...

journal_title：Environmental microbiology reports

authors： Molina-Henares AJ,Godoy P,Duque E,Ramos JL

更新日期：2009-12-01 00:00:00

abstract：:Pyrrolysine (Pyl), the 22nd canonical amino acid, is only decoded and synthesized by a limited number of organisms in the domains Archaea and Bacteria. Pyl is encoded by the amber codon UAG, typically a stop codon. To date, all known Pyl-decoding archaea are able to carry out methylotrophic methanogenesis. The functio...

journal_title：Environmental microbiology reports

authors： Guan Y,Haroon MF,Alam I,Ferry JG,Stingl U

更新日期：2017-08-01 00:00:00

abstract：:Vibrio vulnificus, an inhabitant of marine and estuarine environments around the world, is the leading cause of reported seafood-related deaths in the United States. Disease is caused by opaque colony-forming strains that produce capsular polysaccharide, loss of which results in an unencapsulated translucent phenotype...

journal_title：Environmental microbiology reports

authors： Kaluskar ZM,Garrison-Schilling KL,McCarter KS,Lambert B,Simar SR,Pettis GS

更新日期：2015-10-01 00:00:00

abstract：:Although dissimilatory sulfate-reducing bacteria (SRB) are generally described as strictly anaerobic organisms with regard to growth, several reports have shown that some SRB, particularly Desulfovibrio species, are quite resistant to O2 . For example, SRB remain viable in many aerobic environments while some even red...

journal_title：Environmental microbiology reports

authors： Lefèvre CT,Howse PA,Schmidt ML,Sabaty M,Menguy N,Luther GW 3rd,Bazylinski DA

更新日期：2016-12-01 00:00:00

abstract：:Pseudomonas putida S12.49, a mutant stain of P. putida S12 that tolerates up to 20 mM benzene, was obtained by evolutionary selection. The genetic basis for the strongly enhanced benzene tolerance was investigated by proteome and transcriptome analysis. Indications were found that the highly benzene-tolerant phenotype...

journal_title：Environmental microbiology reports

authors： Volkers RJ,Ballerstedt H,De Winde JH,Ruijssenaars HJ

更新日期：2010-06-01 00:00:00

abstract：:The TM6 phylum belongs to the so-called microbial dark matter that gathers uncultivated bacteria detected only via DNA sequencing. Recently, the genome sequence of a TM6 bacterium (TM6SC1) has led to suggest that this bacterium would adopt an endosymbiotic life. In the present paper, free-living amoebae bearing a TM6 ...

journal_title：Environmental microbiology reports

authors： Delafont V,Samba-Louaka A,Bouchon D,Moulin L,Héchard Y

更新日期：2015-12-01 00:00:00

abstract：:Dehalococcoides mccartyi is a small, slow-growing bacterium of the phylum Chloroflexi that conserves energy using aliphatic and aromatic organohalides as electron acceptors, and hydrogen as sole electron donor. A recent study identified a protein complex in the membrane of strain CBDB1 comprising a Hup hydrogenase, a ...

journal_title：Environmental microbiology reports

authors： Hartwig S,Dragomirova N,Kublik A,Türkowsky D,von Bergen M,Lechner U,Adrian L,Sawers RG

更新日期：2017-10-01 00:00:00

abstract：:We undertook a large-scale epidemiological survey of commensal Escherichia coli in Trois-Sauts, an isolated village located in the south of French Guiana where human population exchanges are restricted and source of antibiotics controlled. Stools from 162 Wayampi Amerindians and rectal swabs from 33 human associated a...

journal_title：Environmental microbiology reports

authors： Lescat M,Clermont O,Woerther PL,Glodt J,Dion S,Skurnik D,Djossou F,Dupont C,Perroz G,Picard B,Catzeflis F,Andremont A,Denamur E

更新日期：2013-02-01 00:00:00

abstract：:Pseudomonas putida KT2440 is an efficient colonizer of the rhizosphere of plants of agronomical and basic interest. We have demonstrated that KT2440 can protect the model plant Arabidopsis thaliana against infection by the phytopathogen Pseudomonas syringae pv. tomato DC3000. P. putida extracellular haem-peroxidase (P...

journal_title：Environmental microbiology reports

authors： Matilla MA,Ramos JL,Bakker PA,Doornbos R,Badri DV,Vivanco JM,Ramos-González MI

更新日期：2010-06-01 00:00:00

abstract：:Ectosymbiotic Nanoarchaeota live on the surface of diverse archaeal hosts. Despite being broadly distributed in global geothermal systems, only three Nanoarchaeota have been successfully co-cultivated with their hosts, and until now no nanoarchaeotal cultures or genomes have been described from deep-sea hydrothermal v...

journal_title：Environmental microbiology reports

authors： St John E,Flores GE,Meneghin J,Reysenbach AL

更新日期：2019-04-01 00:00:00

abstract：:In anoxic environments such as swamps, rice fields and sludge digestors, syntrophic microbial communities are important for decomposition of organic matter to CO2 and CH4 . The most difficult step is the fermentative degradation of short-chain fatty acids such as propionate and butyrate. Conversion of these metabolite...

journal_title：Environmental microbiology reports

authors： Müller N,Worm P,Schink B,Stams AJ,Plugge CM

更新日期：2010-08-01 00:00:00

abstract：:Antibiotic resistance is a rising threat for human health. Although in clinical settings and terrestrial environments the rise of antibiotic resistant bacteria is well documented, their dissemination and spread in the marine environment, covering almost two-thirds of the Earth's surface, is still poorly understood. In...

journal_title：Environmental microbiology reports

authors： Di Cesare A,Petrin S,Fontaneto D,Losasso C,Eckert EM,Tassistro G,Borello A,Ricci A,Wilson WH,Pruzzo C,Vezzulli L

更新日期：2018-08-01 00:00:00

abstract：:Mycophagous (=fungus feeding) soil bacteria of the genus Collimonas have been shown to colonize and grow on hyphae of different fungal hosts as the only source of energy and carbon. The ability to exploit fungal nutrient resources might require a strategy for collimonads to sense fungi in the soil matrix. Oxalic acid ...

journal_title：Environmental microbiology reports

authors： Rudnick MB,van Veen JA,de Boer W

更新日期：2015-10-01 00:00:00

abstract：:Dual stable isotope probing has been used to infer rates of microbial biomass production and modes of carbon fixation. In order to validate this approach for assessing archaeal production, the methanogenic archaeon Methanosarcina barkeri was grown either with H2 , acetate or methanol with D2 O and 13 C-dissolved inorg...

journal_title：Environmental microbiology reports

authors： Wu W,Meador TB,Könneke M,Elvert M,Wegener G,Hinrichs KU

更新日期：2020-10-01 00:00:00

abstract：:Copper is an essential element but in excess is highly toxic and therefore cytoplasmic levels must be tightly controlled. Member of the genus Burkholderia are highly resistant to various heavy metals and are often isolated from acidic soils where copper bioavailability is high. In this study, we employed transposon se...

journal_title：Environmental microbiology reports

authors： Higgins S,Gualdi S,Pinto-Carbó M,Eberl L

更新日期：2020-04-01 00:00:00

abstract：:Mutualistic and beneficial relationships between nematodes and bacteria are highly present in nature, mostly occurring because of nutritional dependence and pathogen protection, and intrinsically related with the environment, the ecological conditions and the nematode life stages. Thirty-four years have passed since t...

journal_title：Environmental microbiology reports

authors： Nascimento FX,Hasegawa K,Mota M,Vicente CS

更新日期：2015-02-01 00:00:00

abstract：:Free-living bacteria such as Pseudomonas putida are frequently exposed to temperature shifts and non-optimal growth conditions. We compared the transcriptome and metabolome of the cold adaptation of P. putida KT2440 and isogenic cold-sensitive transposon mutants carrying transposons in their cbrA, cbrB, pcnB, vacB, an...

journal_title：Environmental microbiology reports

authors： Dethlefsen S,Jäger C,Klockgether J,Schomburg D,Tümmler B

更新日期：2019-12-01 00:00:00

abstract：:Tunicates are useful models for exploring microbiomes because they have an innate immune system resembling that of chordates. Automated ribosomal RNA intergenic spacer analysis and High-Throughput Sequencing were used to compare the tunic microbiomes of Ciona robusta (formerly Ciona intestinalis type A), Ciona savigny...

journal_title：Environmental microbiology reports

authors： Cahill PL,Fidler AE,Hopkins GA,Wood SA

更新日期：2016-08-01 00:00:00

abstract：:Interpretation of bacteriohopanepolyol (BHP) biomarkers tracing microbiological processes in modern and ancient sediments relies on understanding environmental controls of production and preservation. BHPs from methanotrophs (35-aminoBHPs) were studied in methane-amended aerobic river-sediment incubations at different...

journal_title：Environmental microbiology reports

authors： Osborne KA,Gray ND,Sherry A,Leary P,Mejeha O,Bischoff J,Rush D,Sidgwick FR,Birgel D,Kalyuzhnaya MG,Talbot HM

更新日期：2017-10-01 00:00:00

abstract：:ITS primers commonly used to describe soil fungi are flawed for AMF although it is unknown the extent to which they distort the interpretation of community patterns. Here, we focus on how the use of a specific ITS2 fungal barcoding primer pair biased for AMF changes the interpretation of AMF community patterns from th...

journal_title：Environmental microbiology reports

authors： Berruti A,Desirò A,Visentin S,Zecca O,Bonfante P

更新日期：2017-10-01 00:00:00

abstract：:Many species in the order Bacillales form a specialized cell type called a spore that is resistant to a range of environmental stresses. Transmission electron microscopy (TEM) reveals that the spore is comprised of a series of concentric shells, surrounding an interior compartment harbouring the spore DNA. The outermo...

journal_title：Environmental microbiology reports

authors： de Andrade Cavalcante D,De-Souza MT,de Orem JC,de Magalhães MIA,Martins PH,Boone TJ,Castillo JA,Driks A

更新日期：2019-04-01 00:00:00

abstract：:The first Thiomicrospira species was isolated in 1972 and was described as a sulfur-oxidizing chemolithoautotroph. Since then, several other Thiomicrospira species have been recovered from around the globe and have been classified as common sulfur oxidizers. In the past, attempts to demonstrate hydrogen consumption of...

journal_title：Environmental microbiology reports

authors： Hansen M,Perner M

更新日期：2016-02-01 00:00:00