Proteomics of Colwellia psychrerythraea at subzero temperatures - a life with limited movement, flexible membranes and vital DNA repair.

abstract：:Microorganisms regulate the composition of their membranes in response to environmental cues. Many Archaea maintain the fluidity and permeability of their membranes by adjusting the number of cyclic moieties within the cores of their glycerol dibiphytanyl glycerol tetraether (GDGT) lipids. Cyclized GDGTs increase memb...

journal_title：Environmental microbiology

authors： Zhou A,Weber Y,Chiu BK,Elling FJ,Cobban AB,Pearson A,Leavitt WD

更新日期：2020-01-01 00:00:00

abstract：:The distribution of nitrifying bacteria of the genera Nitrosomonas, Nitrosospira, Nitrobacter and Nitrospira was investigated in a membrane-bound biofilm system with opposed supply of oxygen and ammonium. Gradients of oxygen, pH, nitrite and nitrate were determined by means of microsensors while the nitrifying populat...

journal_title：Environmental microbiology

authors： Schramm A,De Beer D,Gieseke A,Amann R

更新日期：2000-12-01 00:00:00

abstract：:We report here a molecular survey based on 16S rRNA genes of the bacterial diversity found in two deep-sea vent niches at the Mid-Atlantic Ridge: hydrothermal sediment (Rainbow site), and microcolonizers made of three different substrates (organic-rich, iron-rich and pumice) that were exposed for 15 days to a vent emi...

journal_title：Environmental microbiology

authors： López-García P,Duperron S,Philippot P,Foriel J,Susini J,Moreira D

更新日期：2003-10-01 00:00:00

abstract：:The diversity of microbial eukaryotes was surveyed by environmental sequencing from tropical lagoon sites of the South Pacific, collected through the American Museum of Natural History (AMNH)'s Explore21 expedition to the Solomon Islands in September 2013. The sampled lagoons presented low nutrient concentrations typi...

journal_title：Environmental microbiology

authors： Kim E,Sprung B,Duhamel S,Filardi C,Kyoon Shin M

更新日期：2016-12-01 00:00:00

abstract：:Hopanoids are bacterial surrogates of eukaryotic membrane sterols and among earth's most abundant natural products. Their molecular fossils remain in sediments spanning more than a billion years. However, hopanoid metabolism and function are not fully understood. Burkholderia species are environmental opportunistic pa...

journal_title：Environmental microbiology

authors： Schmerk CL,Welander PV,Hamad MA,Bain KL,Bernards MA,Summons RE,Valvano MA

更新日期：2015-03-01 00:00:00

abstract：:The bacterial metabolite and transition metal chelator pyridine-2,6-dithiocarboxylic acid (PDTC), promotes a novel and effective means of dechlorination of the toxic and carcinogenic pollutant, carbon tetrachloride. Pyridine-2,6-dithiocarboxylic acid has been presumed to act as a siderophore in the Pseudomonas strains...

journal_title：Environmental microbiology

authors： Lewis TA,Leach L,Morales S,Austin PR,Hartwell HJ,Kaplan B,Forker C,Meyer JM

更新日期：2004-02-01 00:00:00

abstract：:At deep-sea hydrothermal vents, microbial communities thrive across geochemical gradients above, at, and below the seafloor. In this study, we determined the gene content and transcription patterns of microbial communities and specific populations to understand the taxonomy and metabolism both spatially and temporally...

journal_title：Environmental microbiology

authors： Fortunato CS,Larson B,Butterfield DA,Huber JA

更新日期：2018-02-01 00:00:00

abstract：:Fungi have been observed to exhibit resistance to high levels of ionizing radiation despite sharing most DNA repair mechanisms with other eukaryotes. Radioresistance, in fact, is such a common feature in fungi that it is difficult to identify species that exhibit widely different radiosensitivities, which in turn has ...

journal_title：Environmental microbiology

authors： Romsdahl J,Schultzhaus Z,Chen A,Liu J,Ewing A,Hervey J,Wang Z

更新日期：2020-10-19 00:00:00

abstract：:Photosynthetic microorganisms play a crucial role in the marine environment. In vast areas of the oceans, marine primary productivity is performed by cells smaller than 2-3 micro m (picoplankton). Here, we report on molecular analyses of the conserved photosynthetic psbA gene (coding for protein D1 of photosystem II r...

journal_title：Environmental microbiology

authors： Zeidner G,Preston CM,Delong EF,Massana R,Post AF,Scanlan DJ,Béjà O

更新日期：2003-03-01 00:00:00

abstract：:The depolymerase enzyme (DpoL1) encoded by the T7-like phage L1 efficiently degrades amylovoran, an important virulence factor and major component of the extracellular polysaccharide (EPS) of its host, the plant pathogen Erwinia amylovora. Mass spectrometry analysis of hydrolysed EPS revealed that DpoL1 cleaves the ga...

journal_title：Environmental microbiology

authors： Born Y,Fieseler L,Klumpp J,Eugster MR,Zurfluh K,Duffy B,Loessner MJ

更新日期：2014-07-01 00:00:00

abstract：:Iron(III) profiles of flooded paddy soil incubated in the greenhouse indicated oxidation of iron(II) in the upper 6 mm soil layer. Measurement of oxygen with a Clark-type microelectrode showed that oxygen was only responsible for the oxidation of iron(II) in the upper 3 mm. In the soil beneath, nitrate could be used a...

journal_title：Environmental microbiology

authors： Ratering S,Schnell S

更新日期：2001-02-01 00:00:00

abstract：:The functioning of natural microbial ecosystems is influenced by various biotic and abiotic conditions. The careful experimental manipulation of environmental conditions can drive microbial ecosystems toward exhibiting desirable types of functionality. Such manipulations can be systematically approached by viewing the...

journal_title：Environmental microbiology

authors： Vandecasteele FP,Crawford RL,Hess TF

更新日期：2008-07-01 00:00:00

abstract：:The anaerobic oxidation of methane (AOM) is one of the major sinks for methane on earth and is known to be mediated by at least two phylogenetically different groups of anaerobic methanotrophic Archaea (ANME-I and ANME-II). We present the first comparative in vitro study of the environmental regulation and physiology ...

journal_title：Environmental microbiology

authors： Nauhaus K,Treude T,Boetius A,Krüger M

更新日期：2005-01-01 00:00:00

abstract：:In recent years, the importance of the Gram-negative bacterium Stenotrophomonas as an opportunistic pathogen as well as in biotechnology has increased. The aim of the present study was to develop new methods for distinguishing between strains closely related to the potentially human pathogenic Stenotrophomonas maltoph...

journal_title：Environmental microbiology

authors： Ribbeck-Busch K,Roder A,Hasse D,de Boer W,Martínez JL,Hagemann M,Berg G

更新日期：2005-11-01 00:00:00

abstract：:The transcription of S-PM2 phage following infection of Synechococcus sp. WH7803, a marine cyanobacterium, was analysed by quantitative real-time PCR. Unlike the distantly related coliphage T4, there were only two (early and late) instead of three (early, middle and late) classes of transcripts during the developmenta...

journal_title：Environmental microbiology

authors： Clokie MR,Shan J,Bailey S,Jia Y,Krisch HM,West S,Mann NH

更新日期：2006-05-01 00:00:00

abstract：:Fungi are important decomposers of leaf litter in streams and may have knock-on effects on other microbes and carbon cycling. To elucidate such potential effects, we designed an experiment in outdoor experimental channels simulating sand-bottom streams in an early-successional state. We hypothesized that the presence ...

journal_title：Environmental microbiology

authors： Frossard A,Gerull L,Mutz M,Gessner MO

更新日期：2012-11-01 00:00:00

abstract：:This study investigated analytical parameters that are inherently relevant to identifying and quantifying fungal communities based on polymerase chain reaction amplicons. Specifically, we evaluated the accuracy of the BLASTn-based identification for internal transcribed spacer (ITS) sequences generated from pure cultu...

journal_title：Environmental microbiology

authors： Yamamoto N,Dannemiller KC,Bibby K,Peccia J

更新日期：2014-09-01 00:00:00

abstract：:Nitrogen (N) deposition affects myriad aspects of terrestrial ecosystem structure and function, and microbial communities may be particularly sensitive to anthropogenic N inputs. However, our understanding of N deposition effects on microbial communities is far from complete, especially for drylands where data are com...

journal_title：Environmental microbiology

authors： McHugh TA,Morrissey EM,Mueller RC,Gallegos-Graves V,Kuske CR,Reed SC

更新日期：2017-04-01 00:00:00

abstract：:Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is an important disease in Canada. The worldwide genetic structure of Pst populations have been characterized, excluding Canada. Here, we elucidated the genetic structure of the western Canadian Pst population using molecular markers, revealing th...

journal_title：Environmental microbiology

authors： Brar GS,Ali S,Qutob D,Ambrose S,Lou K,Maclachlan R,Pozniak CJ,Fu YB,Sharpe AG,Kutcher HR

更新日期：2018-04-01 00:00:00

abstract：:The haemolysin from enterohaemorrhagic Escherichia coli (EHEC-Hly) and the serine protease EspPα are putative virulence factors of EHEC. We investigated the interplay between these secreted factors and demonstrate that EspPα cleaves the 107 kDa large EHEC-Hly. Degradation was observed when purified EspPα was added to ...

journal_title：Environmental microbiology

authors： Brockmeyer J,Aldick T,Soltwisch J,Zhang W,Tarr PI,Weiss A,Dreisewerd K,Müthing J,Bielaszewska M,Karch H

更新日期：2011-05-01 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：:Mercury (Hg) is a highly toxic and widely distributed heavy metal, which some Bacteria and Archaea detoxify by the reduction of ionic Hg (Hg[II]) to the elemental volatile form, Hg(0). This activity is specified by the mer operon. The mer operon of the deeply branching thermophile Thermus thermophilus HB27 encodes for...

journal_title：Environmental microbiology

authors： Norambuena J,Miller M,Boyd JM,Barkay T

更新日期：2020-04-01 00:00:00

abstract：:Soda lakes are an environment with an unusually high pH and often high salinity. To identify the active methanotrophs in the Soda lake sediments, sediment slurries were incubated with a 10% (v/v) (13)CH(4) headspace and the (13)C-labelled DNA was subsequently extracted from these sediments following CsCl density gradi...

journal_title：Environmental microbiology

authors： Lin JL,Radajewski S,Eshinimaev BT,Trotsenko YA,McDonald IR,Murrell JC

更新日期：2004-10-01 00:00:00

abstract：:The microbial consumption of nitrous oxide (N2O) has gained great interest since it was revealed that this process could mitigate the greenhouse effect of N2O. The consumption of N2O results from its reduction to dinitrogen gas (N2) as part of the denitrification process. However, there is ongoing debate regarding an ...

journal_title：Environmental microbiology

authors： Desloover J,Roobroeck D,Heylen K,Puig S,Boeckx P,Verstraete W,Boon N

更新日期：2014-10-01 00:00:00

abstract：:The common polysaccharide antigen (CPA) of the lipopolysaccharide (LPS) from Pseudomonas syringae is highly variable, but the genetic basis for this is poorly understood. We have characterized the CPA locus from P. syringae pv. actinidiae (Psa). This locus has genes for l- and d-rhamnose biosynthesis and an operon cod...

journal_title：Environmental microbiology

authors： Jayaraman J,Jones WT,Harvey D,Hemara LM,McCann HC,Yoon M,Warring SL,Fineran PC,Mesarich CH,Templeton MD

更新日期：2020-12-01 00:00:00

abstract：:Since Robert Koch and colleagues found agar to be an effective gelling agent over a century ago, the pure culture method using agar plates has long been a standard of microbiology. Agar is undoubtedly easy to handle and useful for culture of microorganisms, but recent discovery of the ubiquity of microorganisms that c...

journal_title：Environmental microbiology

authors： Tamaki H,Hanada S,Sekiguchi Y,Tanaka Y,Kamagata Y

更新日期：2009-07-01 00:00:00

abstract：:The underlying mechanisms of microbial community assembly in connective coastal environments are unclear. The coastal water area of northern Zhejiang, East China Sea, is a complex marine ecosystem with multiple environmental gradients, where the distributions and determinants of bacterioplankton communities remain unc...

journal_title：Environmental microbiology

authors： Wang K,Ye X,Chen H,Zhao Q,Hu C,He J,Qian Y,Xiong J,Zhu J,Zhang D

更新日期：2015-10-01 00:00:00

abstract：:Antibiotics have been proposed as supplements in re-feeding programmes for malnourished children. A review of paediatric literature showed that growth promotion by antibiotics, when it was observed, was mostly mediated by its anti-infective properties. Despite the widespread use of antibiotics as growth promoters in a...

journal_title：Environmental microbiology

authors： Brüssow H

更新日期：2015-07-01 00:00:00

abstract：:Using DNA obtained from the metagenome of an anaerobic digestor in a waste water treatment plant, we constructed a gene library cloned in the wide host-range cosmid pLAFR3. One cosmid enabled Rhizobium leguminosarum to grow on ethanol as sole carbon and energy source, this being due to the presence of a gene, termed a...

journal_title：Environmental microbiology

authors： Wexler M,Bond PL,Richardson DJ,Johnston AW

更新日期：2005-12-01 00:00:00

abstract：:Avoparcin, a vancomycin analogue, was banned as a feed additive in Taiwan in 2000. A nationwide surveillance was conducted to study the prevalence of vancomycin-resistant enterococci (VRE) on chicken farms between 2000 and 2003. Among the 1021 E. faecalis and 967 E. faecium isolates studied, resistance to tetracycline...

journal_title：Environmental microbiology

authors： Lauderdale TL,Shiau YR,Wang HY,Lai JF,Huang IW,Chen PC,Chen HY,Lai SS,Liu YF,Ho M

更新日期：2007-03-01 00:00:00