The faulty SOS response of Pseudomonas putida KT2440 stems from an inefficient RecA-LexA interplay.

abstract：:Molecular signatures of new, as yet uncultured mollicute-like organisms (MLOs) have been detected in total rRNA and DNA extracted from tissues, gut contents and casts of four species of the earthworm family Lumbricidae. The MLO 16S rRNA sequences exhibited low identity to those of known Mollicutes species and formed a...

journal_title：Environmental microbiology

authors： Nechitaylo TY,Timmis KN,Golyshin PN

更新日期：2009-04-01 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：:Tropical ecosystems remain poorly understood and this is particularly true for belowground soil fungi. Soil fungi may respond to plant identity when, for example, plants differentially allocate resources belowground. However, spatial and temporal heterogeneity in factors such as plant inputs, moisture, or nutrients ca...

journal_title：Environmental microbiology

authors： Kivlin SN,Hawkes CV

更新日期：2016-12-01 00:00:00

abstract：:Vibrio cholerae's capacity to cause outbreaks of cholera is linked to its survival and adaptability to changes in aquatic environments. One of the environmental conditions that can vary in V. cholerae's natural aquatic habitats is calcium (Ca(+2)). In this study, we investigated the response of V. cholerae to changes ...

journal_title：Environmental microbiology

authors： Bilecen K,Yildiz FH

更新日期：2009-08-01 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：: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：:In a future scenario of increasing temperatures in North-Atlantic waters, the risk associated with the expansion of the harmful, benthic dinoflagellate Ostreopsis cf. siamensis has to be evaluated and monitored. Microscopy observations and spatio-temporal surveys of environmental DNA (eDNA) were associated with Lagran...

journal_title：Environmental microbiology

authors： Drouet K,Jauzein C,Herviot-Heath D,Hariri S,Laza-Martinez A,Lecadet C,Plus M,Seoane S,Sourisseau M,Lemée R,Siano R

更新日期：2021-01-26 00:00:00

abstract：:Mucormycosis is an emergent, fatal fungal infection of humans and warm-blooded animals caused by species of the order Mucorales. Immune cells of the innate immune system serve as the first line of defence against inhaled spores. Alveolar macrophages were challenged with the mucoralean fungus Lichtheimia corymbifera an...

journal_title：Environmental microbiology

authors： Hassan MIA,Kruse JM,Krüger T,Dahse HM,Cseresnyés Z,Blango MG,Slevogt H,Hörhold F,Ast V,König R,Figge MT,Kniemeyer O,Brakhage AA,Voigt K

更新日期：2020-09-01 00:00:00

abstract：:The well-known role of antibiotics in killing sensitive organisms has been challenged by the effects they exert at subinhibitory concentrations. Unfortunately, there are very few published reports on the advantages these molecules may confer to their producers. This study describes the construction of a genetically ve...

journal_title：Environmental microbiology

authors： Prajapati D,Kumari N,Dave K,Chatupale V,Pohnerkar J

更新日期：2019-02-01 00:00:00

abstract：:While the dynamics of microbial community assembly driven by environmental perturbations have been extensively studied, our understanding is far from complete, particularly for light-induced perturbations. Extremely halophilic communities thriving in coastal solar salterns are mainly influenced by two environmental fa...

journal_title：Environmental microbiology

authors： Viver T,Orellana LH,Díaz S,Urdiain M,Ramos-Barbero MD,González-Pastor JE,Oren A,Hatt JK,Amann R,Antón J,Konstantinidis KT,Rosselló-Móra R

更新日期：2019-11-01 00:00:00

abstract：:Phytoplankton influence the composition of bacterial communities, but the taxonomic specificity of algal-bacterial interactions is unclear due to the aggregation of ecologically distinct bacterial populations by community characterization methods. Here we examine whether phytoplankton seasonal succession affects the c...

journal_title：Environmental microbiology

authors： Paver SF,Youngblut ND,Whitaker RJ,Kent AD

更新日期：2015-03-01 00:00:00

abstract：:How to explore protein sequence space efficiently and how to generate high-quality mutant libraries that allow to identify improved variants with current screening technologies are key questions for any directed protein evolution experiment. High-quality mutant libraries can be generated through improved random mutage...

journal_title：Environmental microbiology

authors： Wong TS,Roccatano D,Schwaneberg U

更新日期：2007-11-01 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：:The distribution and the metabolic pathways of bacteria degrading steroid compounds released by eukaryotic organisms were investigated using the bile salt cholate as model substrate. Cholate-degrading bacteria could be readily isolated from freshwater environments. All isolated strains transiently released steroid deg...

journal_title：Environmental microbiology

authors： Holert J,Yücel O,Suvekbala V,Kulić Z,Möller H,Philipp B

更新日期：2014-05-01 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：:In two recent studies, clinical isolates in the Fusarium solani species complex (FSSC) were sequenced; one of the most common lineages was FSSC Group 1 (FSSC 1), a phylogenetic species that is synonymous with F. solani f. sp. cucurbitae race 2, a pathogen of cucurbit fruits. FSSC 1 was also identified in sink and show...

journal_title：Environmental microbiology

authors： Mehl HL,Epstein L

更新日期：2008-01-01 00:00:00

abstract：:The depth distribution and diversity of sulphate-reducing bacteria (SRB) was analysed in the upper intertidal zone of a sandy marine sediment of the Dutch island Schiermonnikoog. The upper centimetre of the sediment included the oxic-anoxic interface and was cut into five slices. With each slice, most probable number ...

journal_title：Environmental microbiology

authors： Wieringa EB,Overmann J,Cypionka H

更新日期：2000-08-01 00:00:00

abstract：:Although the roles of introns have been much debated in eukaryotic organisms, none of them have been functionally characterized in Fusarium graminearum. In this study, we characterized the roles of introns in regulation of fungicide-sensitivity of F. graminearum. β2 tub, cyp51A and myosin-5 are important target genes ...

journal_title：Environmental microbiology

authors： Li Y,Luo S,Jia X,Zhu Y,Chen D,Duan Y,Hou Y,Zhou M

更新日期：2017-10-01 00:00:00

abstract：:The characteristics that allow one Campylobacter jejuni genotype to succeed over another under the influence of bacteriophage predation have been examined in experimental broiler chickens following the observation that this succession appeared to occur in naturally colonized broiler chicken flocks. Examination of thre...

journal_title：Environmental microbiology

authors： Scott AE,Timms AR,Connerton PL,El-Shibiny A,Connerton IF

更新日期：2007-09-01 00:00:00

abstract：:Secondary metabolites (SMs) are crucial for fungi and vary in function from beneficial antibiotics to pathogenicity factors. To generate diversified SMs that enable different functions, SM-coding regions rapidly evolve in fungal genomes. However, the driving force and genetic mechanism of fungal SM diversification in ...

journal_title：Environmental microbiology

authors： Zhong Z,Lin L,Zheng H,Bao J,Chen M,Zhang L,Tang W,Ebbole DJ,Wang Z

更新日期：2020-07-01 00:00:00

abstract：:Stable carbon isotope fractionation during dichloromethane (DCM) degradation by methylotrophic bacteria was investigated under aerobic and nitrate-reducing conditions. The strains studied comprise several Hyphomicrobium strains, Methylobacterium, Methylopila, Methylophilus and Methylorhabdus spp. that are considered t...

journal_title：Environmental microbiology

authors： Nikolausz M,Nijenhuis I,Ziller K,Richnow HH,Kästner M

更新日期：2006-01-01 00:00:00

abstract：:Actinobacteria are highly abundant in pelagic freshwater habitats and also occur in estuarine environments such as the Baltic Sea. Because of gradients in salinity and other environmental variables estuaries offer natural systems for examining factors that determine Actinobacteria distribution. We studied abundance an...

journal_title：Environmental microbiology

authors： Holmfeldt K,Dziallas C,Titelman J,Pohlmann K,Grossart HP,Riemann L

更新日期：2009-08-01 00:00:00

abstract：:The anterior nares are an important reservoir for opportunistic pathogens and commensal microorganisms. A barcoded Illumina paired-end sequencing method targeting the 16S ribosomal RNA V1-2 hypervariable region was developed to compare the bacterial diversity of the anterior nares across distinct human populations (vo...

journal_title：Environmental microbiology

authors： Camarinha-Silva A,Jáuregui R,Chaves-Moreno D,Oxley AP,Schaumburg F,Becker K,Wos-Oxley ML,Pieper DH

更新日期：2014-09-01 00:00:00

abstract：:Within-lake horizontal heterogeneity of bacterioplankton community composition (BCC) was investigated in the large and shallow subtropical Taihu Lake (2338 km(2), maximum depth < 3 m). Samples were collected at 17 sites along a trophic gradient ranging from mesotrophic to hypertrophic areas in August and September 200...

journal_title：Environmental microbiology

authors： Wu QL,Zwart G,Wu J,Kamst-van Agterveld MP,Liu S,Hahn MW

更新日期：2007-11-01 00:00:00

abstract：:Reactive oxygen species (ROS) induce the synthesis of a myriad of secondary metabolites, including aflatoxins. It raises significant concern as it is a potent environmental contaminant. In Aspergillus flavus., antioxidant enzymes link ROS stress response with coordinated gene regulation of aflatoxin biosynthesis. In t...

journal_title：Environmental microbiology

authors： Zhu Z,Yang M,Bai Y,Ge F,Wang S

更新日期：2020-07-01 00:00:00

abstract：:Toxin-antitoxin (TA) systems are small genetic modules usually consisting of two elements-a toxin and an antitoxin. The abundance of TA systems among various bacterial strains may indicate an important evolutionary role. Pseudomonas aeruginosa, which can be found in a variety of niches in nature, is an opportunistic p...

journal_title：Environmental microbiology

authors： Zander I,Shmidov E,Roth S,Ben-David Y,Shoval I,Shoshani S,Danielli A,Banin E

更新日期：2020-12-01 00:00:00

abstract：:Although plants introduced for site restoration are pre-selected for specific traits (e.g. trace element bioaccumulation, rapid growth in poor soils), the in situ success of these plants likely depends on the recruitment of appropriate rhizosphere microorganisms from their new environment. We introduced three willow (...

journal_title：Environmental microbiology

authors： Bell TH,Cloutier-Hurteau B,Al-Otaibi F,Turmel MC,Yergeau E,Courchesne F,St-Arnaud M

更新日期：2015-08-01 00:00:00

abstract：:The spatial organization of gut microorganisms is important with respect to their functional role in the gut ecosystem. Regional differences in the longitudinal and lateral direction are, however, not frequently studied, given the difficulty to sample these human gut regions in vivo. Particularly the insoluble food pa...

journal_title：Environmental microbiology

authors： De Paepe K,Verspreet J,Verbeke K,Raes J,Courtin CM,Van de Wiele T

更新日期：2018-09-01 00:00:00

abstract：:Metarhizium robertsii occupies a wide array of ecological niches and has diverse lifestyle options (saprophyte, insect pathogen and plant symbiont), that renders it an unusually effective model for studying genetic mechanisms for fungal adaptation. Here over 20,000 M. robertsii T-DNA mutants were screened in order to ...

journal_title：Environmental microbiology

authors： Zeng G,Chen X,Zhang X,Zhang Q,Xu C,Mi W,Guo N,Zhao H,You Y,Dryburgh FJ,Bidochka MJ,St Leger RJ,Zhang L,Fang W

更新日期：2017-10-01 00:00:00

abstract：:The presence of two insertion sequences, IS406 and IS407, was tested by polymerase chain reaction (PCR) amplification in 25 strains representing 15 Burkholderia species and the close relative Ralstonia pickettii. A total of 50% of the 25 strains contained at least one of the two insertion sequences (ISs) and a statist...

journal_title：Environmental microbiology

authors： Miché L,Faure D,Blot M,Cabanne-Giuli E,Balandreau J

更新日期：2001-12-01 00:00:00