Emergence of a hybrid PKS-NRPS secondary metabolite cluster in a clonal population of the rice blast fungus Magnaporthe oryzae.

abstract：:Geothermal springs are essentially unaffected by environmental conditions aboveground as they are continuously supplied with subsurface water with little variability in chemistry. Therefore, changes in their microbial community composition and function, especially over a long period, are expected to be limited but thi...

journal_title：Environmental microbiology

authors： Meziti A,Nikouli E,Hatt JK,Konstantinidis KT,Kormas KA

更新日期：2020-12-21 00:00:00

abstract：:In diseased piglets from two Dutch pig-breeding farms with neonatal diarrhoea for more than a year, culture and PCR analyses identified the involved microorganism as Clostridium difficile PCR ribotype 078 harbouring toxin A (tcdA) and B (tcdB), and binary toxin genes. Isolated strains showed a 39 bp deletion in the tc...

journal_title：Environmental microbiology

authors： Debast SB,van Leengoed LA,Goorhuis A,Harmanus C,Kuijper EJ,Bergwerff AA

更新日期：2009-02-01 00:00:00

abstract：:A study was conducted in a Castanea sativa forest that produces large quantities of the edible mushroom porcini (Boletus edulis sensu lato). The primary aim was to study porcini mycelia in the soil, and to determine if there were any possible ecological and functional interactions with other dominant soil fungi. Three...

journal_title：Environmental microbiology

authors： Peintner U,Iotti M,Klotz P,Bonuso E,Zambonelli A

更新日期：2007-04-01 00:00:00

abstract：:Marine sponges often harbour communities of symbiotic microorganisms that fulfil necessary functions for the well-being of their hosts. Microbial communities associated with the sponge Rhopaloeides odorabile were used as bioindicators for sublethal cupric ion (Cu2+) stress. A combined strategy incorporating molecular,...

journal_title：Environmental microbiology

authors： Webster NS,Webb RI,Ridd MJ,Hill RT,Negri AP

更新日期：2001-01-01 00:00:00

abstract：:Molecular approaches have revealed considerable diversity and uncultured novelty in natural prokaryotic populations, but not direct links between the new genotypes detected and ecosystem processes. Here we describe the influence of the structure of communities of ammonia-oxidizing bacteria on nitrogen cycling in micro...

journal_title：Environmental microbiology

authors： Webster G,Embley TM,Freitag TE,Smith Z,Prosser JI

更新日期：2005-05-01 00:00:00

abstract：:The HprK serine kinase is a component of the phosphoenolpyruvate phosphotransferase system (PTS) of bacteria that generally regulates catabolite repression through phosphorylation/dephosphorylation of the PTS protein PtsH at a conserved serine residue. However, many bacteria do not encode a complete PTS or even have a...

journal_title：Environmental microbiology

authors： Li RF,Cui P,Wei PZ,Liu XY,Tang JL,Lu GT

更新日期：2019-12-01 00:00:00

abstract：:Marine Crenarchaeota represent an abundant component of the oceanic microbiota that play an important role in the global nitrogen cycle. Here we report the association of the colonial ascidian Cystodytes dellechiajei with putative ammonia-oxidizing Crenarchaeota that could actively be involved in nitrification inside ...

journal_title：Environmental microbiology

authors： Martínez-García M,Stief P,Díaz-Valdés M,Wanner G,Ramos-Esplá A,Dubilier N,Antón J

更新日期：2008-11-01 00:00:00

abstract：:Among human faecal bacteria, many members of the Clostridium leptum subgroup are fibrolytic and butyrate producing microorganisms thereby contributing to processes important to colonic health. Yet this phylogenetic subgroup remains poorly described to date. To improve detection and description of members of the C. lep...

journal_title：Environmental microbiology

authors： Lay C,Sutren M,Rochet V,Saunier K,Doré J,Rigottier-Gois L

更新日期：2005-07-01 00:00:00

abstract：:Halophilic Bacteriovorax (Bx), formerly known as the marine Bdellovibrio, are Gram-negative, predatory bacteria found in saltwater systems. To assess their genetic diversity and geographical occurrence, the small subunit rRNA (ssu-rRNA) gene sequences were analysed from 111 marine, salt lake and estuarine isolates rec...

journal_title：Environmental microbiology

authors： Pineiro SA,Stine OC,Chauhan A,Steyert SR,Smith R,Williams HN

更新日期：2007-10-01 00:00:00

abstract：:In the rhizosphere, phosphorus (P) levels are low because of P uptake into the roots. Rhizobacteria live on carbon (C) exuded from roots, and may contribute to plant nutrition by liberating P from organic compounds such as phytates. We isolated over 300 phytate (Na-inositol hexa-phosphate; Na-IHP)-utilizing bacterial ...

journal_title：Environmental microbiology

authors： Unno Y,Okubo K,Wasaki J,Shinano T,Osaki M

更新日期：2005-03-01 00:00:00

abstract：:Chytrids are ubiquitous fungal parasites in aquatic ecosystems, infecting representatives of all major phytoplankton groups. They repack carbon from inedible phytoplankton hosts into easily ingested chytrid propagules (zoospores), rendering this carbon accessible to zooplankton. Grazing on zoospores may circumvent bot...

journal_title：Environmental microbiology

authors： Gerphagnon M,Agha R,Martin-Creuzburg D,Bec A,Perriere F,Rad-Menéndez C,Gachon CMM,Wolinska J

更新日期：2019-03-01 00:00:00

abstract：:Previous studies have shown that the rate of settlement of zoospores of the green alga Enteromorpha is stimulated by mixed microbial biofilms and that the number of zoospores settling is positively correlated with the number of bacteria in the biofilm. In the present study the specificity of this relationship has been...

journal_title：Environmental microbiology

authors： Patel P,Callow ME,Joint I,Callow JA

更新日期：2003-05-01 00:00:00

abstract：:Bacterial assemblages in coastal pelagic environments are exposed to pronounced temporal and spatial fluctuations in the availability of monomeric substrates. Little is known about the response of particular bacterial groups to such variability. We studied glucose incorporation at various concentrations (0.1-100 nM) b...

journal_title：Environmental microbiology

authors： Alonso C,Pernthaler J

更新日期：2006-11-01 00:00:00

abstract：:Gcn5 is a core histone acetyltransferase that catalyzes histone H3 acetylation on N-terminal lysine residues in yeasts and was reported to catalyze H3K9/K14 acetylation required for activating asexual development in Aspergillus. Here, we report a localization of Gcn5 ortholog in the nucleus and cytoplasm of Beauveria ...

journal_title：Environmental microbiology

authors： Cai Q,Wang JJ,Fu B,Ying SH,Feng MG

更新日期：2018-04-01 00:00:00

abstract：:Although increasing knowledge suggests that bacteriophages play important roles in regulating microbial ecosystems, phage-bacteria interaction in human oral cavities remains less understood. Here we performed a metagenomic analysis to explore the composition and variation of oral dsDNA phage populations and potential ...

journal_title：Environmental microbiology

authors： Wang J,Gao Y,Zhao F

更新日期：2016-07-01 00:00:00

abstract：:Bioremediation of contaminated sites has been accepted as an efficient and cheaper alternative to physicochemical means of remediation in several cases. Although chemotactic behaviour of many bacteria has been studied earlier and assays have been developed to study bacterial chemotaxis in semi-solid media, this phenom...

journal_title：Environmental microbiology

authors： Paul D,Singh R,Jain RK

更新日期：2006-10-01 00:00:00

abstract：:Intensive microbial growth typically observed in laboratory rarely occurs in nature. Because of severe nutrient deficiency, natural populations exhibit near-zero growth (NZG). There is a long-standing controversy about sustained NZG, specifically whether there is a minimum growth rate below which cells die or whether ...

journal_title：Environmental microbiology

authors： Panikov NS,Mandalakis M,Dai S,Mulcahy LR,Fowle W,Garrett WS,Karger BL

更新日期：2015-01-01 00:00:00

abstract：:Substrate supply and protist grazing are two of the most important forces that determine the composition and properties of bacterial assemblages. General ecological theory predicts that the relative importance of these factors is changing with the environmental productivity. In the present study, the interplay between...

journal_title：Environmental microbiology

authors： Corno G,Jürgens K

更新日期：2008-10-01 00:00:00

abstract：:Nosema ceranae is currently one of the major pathogens of honeybees, related to the worldwide colony losses phenomenon. The genotyping of strains based on ribosomal DNA (rDNA) can be misleading if the repeated units are not identical. The analysis of cloned rDNA fragments containing the intergenic spacer (IGS) and par...

journal_title：Environmental microbiology

authors： Sagastume S,Del Águila C,Martín-Hernández R,Higes M,Henriques-Gil N

更新日期：2011-01-01 00:00:00

abstract：:Although truffles are cultivated since decades, their life cycle and the conditions stimulating ascocarp formation still remain mysterious. A role for bacteria in the development of several truffle species has been suggested but few is known regarding the natural bacterial communities of Périgord Black truffle. Thus, ...

journal_title：Environmental microbiology

authors： Antony-Babu S,Deveau A,Van Nostrand JD,Zhou J,Le Tacon F,Robin C,Frey-Klett P,Uroz S

更新日期：2014-09-01 00:00:00

abstract：:The presence of aerobic anoxygenic phototrophs (AAPs) was recently reported from various marine environments; however, there is little information regarding their distribution in fresh waters. We surveyed a number of freshwater systems in central Europe, by infra-red fluorometry, infra-red epifluorescence microscopy, ...

journal_title：Environmental microbiology

authors： Masín M,Nedoma J,Pechar L,Koblízek M

更新日期：2008-08-01 00:00:00

abstract：:Temperate oceans are inhabited by diverse and temporally dynamic bacterioplankton communities. However, the role of the environment, resources and phytoplankton dynamics in shaping marine bacterioplankton communities at different time scales remains poorly constrained. Here, we combined time series observations (time ...

journal_title：Environmental microbiology

authors： El-Swais H,Dunn KA,Bielawski JP,Li WK,Walsh DA

更新日期：2015-10-01 00:00:00

abstract：:Over the last 15 years classical culturing and environmental PCR techniques have revealed a modest number of genuinely new major lineages of protists; however, some new groups have greatly influenced our understanding of eukaryote evolution. We used culturing techniques to examine the diversity of free-living protists...

journal_title：Environmental microbiology

authors： Kolisko M,Silberman JD,Cepicka I,Yubuki N,Takishita K,Yabuki A,Leander BS,Inouye I,Inagaki Y,Roger AJ,Simpson AG

更新日期：2010-10-01 00:00:00

abstract：:Aerotaxis of two sulphate-reducing bacteria, the freshwater strain Desulfovibrio desulfuricans CSN (DSM 9104) and the marine strain Desulfovibrio oxyclinae N13 (DSM 11498), was studied using capillary microslides, microscopy and oxygen microsensors. The bacteria formed ring-shaped bands in oxygen diffusion gradients s...

journal_title：Environmental microbiology

authors： Eschemann A,Kühl M,Cypionka H

更新日期：1999-12-01 00:00:00

abstract：:The ability of the product of a desired reaction to activate a bacterial transcriptional regulator was exploited to develop genetic traps that render the catalytic activity born by a DNA clone into a selectable/scorable phenotype. We established this strategy with a system to expose the activity of dehydrochlorinases ...

journal_title：Environmental microbiology

authors： Mohn WW,Garmendia J,Galvao TC,de Lorenzo V

更新日期：2006-03-01 00:00:00

abstract：:Iron is the most abundant redox-active metal in the Earth's crust. The one electron transfer between the two most common redox states, Fe(II) and Fe(III), plays a role in a huge range of environmental processes from mineral formation and dissolution to contaminant remediation and global biogeochemical cycling. It has ...

journal_title：Environmental microbiology

authors： Bryce C,Blackwell N,Schmidt C,Otte J,Huang YM,Kleindienst S,Tomaszewski E,Schad M,Warter V,Peng C,Byrne JM,Kappler A

更新日期：2018-10-01 00:00:00

abstract：:Methyl-coenzyme M reductase (MCR) has been originally identified to catalyse the final step of the methanogenesis pathway. About 20 years ago anaerobic methane-oxidizing archaea (ANME) were discovered that use MCR enzymes to activate methane. ANME thrive at the thermodynamic limit of life, are slow-growing, and in mos...

journal_title：Environmental microbiology

authors： Wang Y,Wegener G,Ruff SE,Wang F

更新日期：2020-05-04 00:00:00

abstract：:The influence of geographic distribution and type of habitat on the molecular epidemiology of ciprofloxacin resistant Escherichia coli was investigated. Ciprofloxacin resistant E. coli from wastewater, urban water with faecal contamination and faeces of gulls, pigeons and birds of prey, from Portugal, Spain and Sweden...

journal_title：Environmental microbiology

authors： Vredenburg J,Varela AR,Hasan B,Bertilsson S,Olsen B,Narciso-da-Rocha C,Bonnedahl J,Stedt J,Da Costa PM,Manaia CM

更新日期：2014-04-01 00:00:00

abstract：:The molecular mechanisms behind the mutagenic effect of reactive oxygen species (ROS) released by defective metabolization of xenobiotic 2,4-dinitrotoluene (DNT) by a still-evolving degradation pathway were studied. To this end, the genes required for biodegradation of DNT from Burkholderia cepacia R34 were implanted ...

journal_title：Environmental microbiology

authors： Akkaya Ö,Nikel PI,Pérez-Pantoja D,de Lorenzo V

更新日期：2019-01-01 00:00:00

abstract：:Investigations of antibiotic resistance from an environmental prospective shed new light on a problem that was traditionally confined to a subset of clinically relevant antibiotic-resistant bacterial pathogens. It is clear that the environmental microbiota, even in apparently antibiotic-free environments, possess an e...

journal_title：Environmental microbiology

authors： Aminov RI

更新日期：2009-12-01 00:00:00