Genomic heterogeneity in Chlorobium limicola: chromosomic and plasmidic differences among strains.

abstract：:The spirochaete, Serpulina pilosicoli, is the agent of intestinal spirochaetosis, a diarrhoeal disease of humans and other species. By mechanisms as yet unknown, large numbers of these spirochaetes intimately attach to the colonic mucosa by one cell end. In some infected individuals, the spirochaetes may invade the la...

journal_title：FEMS microbiology letters

authors： Hartland EL,Mikosza AS,Robins-Browne RM,Hampson DJ

更新日期：1998-08-01 00:00:00

abstract：:Bacteria carry a number of genes that cause cell growth arrest or cell lysis upon expression. Notably, defective prophages retain many lysis proteins. Here, we identified a novel lytic gene, ydfD, on the Qin prophage segment of the Escherichia coli genome. YdfD lyses 99.9% of cells within 2 h of its induction. The co-...

journal_title：FEMS microbiology letters

authors： Masuda H,Awano N,Inouye M

更新日期：2016-03-01 00:00:00

abstract：:Streptomyces coelicolor A3(2) produces an antibiotic, actinorhodin, which belongs to the aromatic polyketides and which can function as an acid/base indicator. Its production results in the death of microorganisms in the vicinity of S. coelicolor A3(2), and this phenomenon can be used in concert with biopesticides. Th...

journal_title：FEMS microbiology letters

authors： Lee Y,Kim K,Suh JW,Rhee S,Lim Y

更新日期：2007-01-01 00:00:00

abstract：:Bacteriophages co-exist and co-evolve with their hosts in natural environments. Virulent phages lyse infected cells through lytic cycles, whereas temperate phages often remain dormant and can undergo lysogenic or lytic cycles. In their lysogenic state, prophages are actually part of the host genome and replicate passi...

journal_title：FEMS microbiology letters

authors： Menouni R,Hutinet G,Petit MA,Ansaldi M

更新日期：2015-01-01 00:00:00

abstract：:Rifampicin is a principal drug used to combat infections by mycobacteria and related organisms. Most strains of Mycobacterium are able to inactivate this antibiotic by ribosylation via an ADP-ribosylated intermediate. We found that this inactivation was inhibited by light at levels similar to those prevailing in labor...

journal_title：FEMS microbiology letters

authors： Dabbs ER,Quan S

更新日期：2000-01-01 00:00:00

abstract：:Pseudomonas aeruginosa strains exhibiting a heterogeneous mode of growth against carbapenems have been described recently. This study investigated the underlying molecular mechanisms in four genetically unrelated P. aeruginosa clinical isolates that were previously characterized by population analyses as heterogeneous...

journal_title：FEMS microbiology letters

authors： Ikonomidis A,Tsakris A,Kantzanou M,Spanakis N,Maniatis AN,Pournaras S

更新日期：2008-02-01 00:00:00

abstract：:NadR is the repressor protein that controls the expression of genes for NAD synthesis. It is also believed to be involved in nucleotide transport. Point mutations conferring different phenotypes were localized to six different regions within the nadR gene. That mutations affecting repression and transport all mapped w...

journal_title：FEMS microbiology letters

authors： Foster JW,Penfound T

更新日期：1993-09-01 00:00:00

abstract：:Abstract The emergence of the nontuberculosis mycobacteria (NTM) as clinically relevant pathogens has warranted the study of these ubiquitous organisms in the context of their likely environmental niche, the biofilm. We assayed the NTM bacterium Mycobacterium marinum strain 1218R, a fish outbreak isolate, for biofilm ...

journal_title：FEMS microbiology letters

authors： Hall-Stoodley L,Brun OS,Polshyna G,Barker LP

更新日期：2006-04-01 00:00:00

abstract：:This communication presents experimental evidence that intact fragile (osmotic sensitive) yeasts can be electrofused and give viable hybrids. The yield increases with one order of magnitude for electrofusion of intact fragile yeasts with protoplasts of non-fragile ones. The yield of viable hybrids, obtained by electro...

journal_title：FEMS microbiology letters

authors： Tsoneva I,Doinov P,Dimitrov DS

更新日期：1989-07-01 00:00:00

abstract：:Three different whole cell biosensor constructs were made by fusing the mercury inducible promoter, P(mer), and its regulatory gene, merR, from transposon Tn21 with reporter genes luxCDABE, lacZYA, or gfp. In Escherichia coli these biosensor constructs responded to low levels of mercury by producing light, beta-galact...

journal_title：FEMS microbiology letters

authors： Hansen LH,Sørensen SJ

更新日期：2000-12-01 00:00:00

abstract：:As shown by both bioassay and high-performance liquid chromatographic (HPLC) analysis, penicillin G production by Aspergillus nidulans is subject to regulation by the pH of the growth medium. Penicillin titres were highest at alkaline pH and in strains carrying mutations in the regulatory gene pacC which mimics the ef...

journal_title：FEMS microbiology letters

authors： Shah AJ,Tilburn J,Adlard MW,Arst HN Jr

更新日期：1991-01-15 00:00:00

abstract：:To exert a beneficial effect on the host, adequate doses of probiotics must be administered and maintaining their viability until consumption is thus essential. Dehydrated probiotics exhibit enhanced long-term viability and can be incorporated into low-moisture food matrices, which also possess high stability at refri...

journal_title：FEMS microbiology letters

authors： Marcial-Coba MS,Knøchel S,Nielsen DS

更新日期：2019-01-01 00:00:00

abstract：:Cronobacter sakazakii is associated with severe and often fatal cases of infant meningitis and necrotizing enterocolitis. The form of meningitis differs from that due to Neisseria meningitidis and Streptococcus spp., in that it is highly invasive and destructive towards human brain cells. However, there is relatively ...

journal_title：FEMS microbiology letters

authors： Alzahrani H,Winter J,Boocock D,De Girolamo L,Forsythe SJ

更新日期：2015-06-01 00:00:00

abstract：:Antibacterial effects in terms of biofilm formation and swarming motility were studied using polyacrylate plates having protruding or recessed shark skin micropatterned surfaces with a shallow groove (2 μm pattern width and spacing, 0.4 μm pattern height). It was found that biofilm formation and swarming motility of P...

journal_title：FEMS microbiology letters

authors： Sakamoto A,Terui Y,Horie C,Fukui T,Masuzawa T,Sugawara S,Shigeta K,Shigeta T,Igarashi K,Kashiwagi K

更新日期：2014-12-01 00:00:00

abstract：:The mating response of the fission yeast Schizosaccharomyces pombe is mediated by mating pheromones, M-factor and P-factor, produced by h- and h+ cells, respectively. When the M-factor receptor (Map3) was ectopically expressed in h- cells lacking the P-factor receptor (Mam2), they acquired mating competence in respons...

journal_title：FEMS microbiology letters

authors： Kitamura K,Nakamura T,Miki F,Shimoda C

更新日期：1996-09-15 00:00:00

abstract：:A succinate semialdehyde dehydrogenase gene (gabD) was identified to be disrupted in a transposon-induced mutant of Ralstonia eutropha exhibiting the phenotype 4-hydroxybutyric acid-leaky. The native gabD gene was cloned by colony hybridization using a homologous gabD-specific DNA probe. DNA sequencing revealed an 145...

journal_title：FEMS microbiology letters

authors： Lütke-Eversloh T,Steinbüchel A

更新日期：1999-12-01 00:00:00

abstract：:We have constructed a DNA library from a virulent Salmonella typhimurium strain, in an avirulent strain. The process of selecting the components of interest from the library involved iterative growth in liquid culture. This resulted, after four cycles, in the culture becoming homogeneous for a single plasmid, which wa...

journal_title：FEMS microbiology letters

authors： Lodge JM,Robey M,Stephen J,Brown NL

更新日期：1999-01-15 00:00:00

abstract：:An 18-kDa protein that occurs in Vibrio cholerae has been described as an in vivo and low-iron regulated outer membrane antigen. Monoclonal antibodies which recognized this antigen were protective as passive vaccines in the infant rabbit model of cholera disease. In this study, those monoclonal antibodies were used in...

journal_title：FEMS microbiology letters

authors： Sciortino CV Jr

更新日期：1993-07-15 00:00:00

abstract：:Immunoassays are increasingly used to investigate the production, properties and fates of the cyanobacterial hepatotoxic microcystins in vitro and in vivo. Responses of an ELISA immunoassay to microcystins have been determined using the authentic toxin antigen, microcystin-LR, and conjugation products between the toxi...

journal_title：FEMS microbiology letters

authors： Metcalf JS,Beattie KA,Pflugmacher S,Codd GA

更新日期：2000-08-15 00:00:00

abstract：:Outer membrane-associated proteins of 18 kDa were expressed by enteroaggregative Escherichia coli (EAggEC) belonging to serotypes O126:H27 and O44:H18, which hybridized with a probe derived from a plasmid necessary for enteroaggregative adhesion. The 18 kDa proteins expressed by strains of E. coli, belonging to these ...

journal_title：FEMS microbiology letters

authors： Chart H,Smith HR,Rowe B

更新日期：1995-10-01 00:00:00

abstract：:One hundred and ninety-eight clinical isolates of Mycobacterium kansasii collected between 2003 and 2004 in Japan were genotyped by PCR and restriction enzyme analysis (PRA) and 16S-23S internal transcribed spacer (ITS) sequencing. The results demonstrated that clinical isolates of M. kansasii in Japan are almost excl...

journal_title：FEMS microbiology letters

authors： Iwamoto T,Saito H

更新日期：2006-01-01 00:00:00

abstract：:Using labelled, gamma-32P rRNA of mycobacteria as a probe restriction fragment length polymorphism (RFLP) of rRNA genes of strains belonging to the Mycobacterium fortuitum-chelonei complex was analysed. Each DNA sample was cleaved with EcoRI restriction endonuclease, the fragments were separated by agarose gel electro...

journal_title：FEMS microbiology letters

authors： Kanaujia GV,Katoch VM,Shivannavar CT,Sharma VD,Patil MA

更新日期：1991-01-15 00:00:00

abstract：:Crystalline 3-methylaspartase (EC 4.3.1.2) from Escherichia coli strain YG1002 that had been isolated from soil was characterized. The enzyme activity was induced when the organism was grown statically on medium containing (S)-glutamic acid. Its molecular mass is about 84 kDa, and it may be composed of two identical s...

journal_title：FEMS microbiology letters

authors： Asano Y,Kato Y

更新日期：1994-05-15 00:00:00

abstract：:Two isolates, belonging to a new species of a novel genus of the Phylum "Deinococcus/Thermus ", were recovered from hot spring runoffs on the Island of São Miguel in the Azores. Strains RQ-24(T) and TU-8 are the first cultured representatives of a distinct phylogenetic lineage within this phylum. These strains form or...

journal_title：FEMS microbiology letters

authors： Albuquerque L,Simões C,Nobre MF,Pino NM,Battista JR,Silva MT,Rainey FA,da Costa MS

更新日期：2005-06-15 00:00:00

abstract：:Alcaligenes sp. strain PPH degrades phenanthrene via 1-hydroxy-2-naphthoic acid (1-H2NA), 1,2-dihydroxynaphthalene (1,2-DHN), salicylic acid and catechol. Enzyme activity versus growth profile and heat stability studies suggested the presence of two distinct hydroxylases, namely 1-hydroxy-2-naphthoic acid hydroxylase ...

journal_title：FEMS microbiology letters

authors： Deveryshetty J,Phale PS

更新日期：2010-10-01 00:00:00

abstract：:Magnetotactic bacteria are microorganisms that respond to magnetic fields. We studied the surface ultrastructure of uncultured magnetotactic cocci collected from a marine environment by transmission electron microscopy using freeze-fracture and freeze-etching. All bacteria revealed a Gram-negative cell wall. Many bact...

journal_title：FEMS microbiology letters

authors： Freitas F,Keim CN,Kachar B,Farina M,Lins U

更新日期：2003-02-14 00:00:00

abstract：:A Ca(2+)/calmodulin-dependent protein kinase (CaMK) gene was cloned and characterized from Arthrobotrys dactyloides, a nematode-trapping fungus. The resulting 373-amino-acid protein, FCaMK, has significant homology to mammalian CaMKs. FCaMK contains a serine/threonine kinase domain followed by a calmodulin-binding dom...

journal_title：FEMS microbiology letters

authors： Tsai PJ,Tu J,Chen TH

更新日期：2002-06-18 00:00:00

abstract：:Plastocyanin, encoded by the petE gene, can transfer electrons to photosystem I (PSI) and cytochrome c oxidase during photosynthetic and respiratory metabolism in cyanobacteria. We constructed a petE mutant of Synechocystis sp. strain PCC 6803 and investigated its phenotypic properties under different light conditions...

journal_title：FEMS microbiology letters

authors： Wang XQ,Jiang HB,Zhang R,Qiu BS

更新日期：2013-04-01 00:00:00

abstract：:A 1.8-kb cryptic plasmid pFR18 was isolated from Leuconostoc mesenteroides ssp. mesenteroides FR52 and characterized. The identification of single-stranded DNA intermediate (ssDNA) in Leuconostoc demonstrated that the replication of pFR18 is directed by a rolling-circle mechanism (RCR). Sequence analysis revealed a si...

journal_title：FEMS microbiology letters

authors： Biet F,Cenatiempo Y,Fremaux C

更新日期：1999-10-15 00:00:00

abstract：:The cellulase-producing fungal strain Y-94, isolated in Japan and invalidly described as Acremonium cellulolyticus nom. nud. strain Y-94, seldom forms enteroarthric conidia under nutrient starvation conditions. Phylogenetic analysis using ITS1-5.8S-ITS2 and RNA polymerase II large subunit gene sequences revealed that ...

journal_title：FEMS microbiology letters

authors： Fujii T,Hoshino T,Inoue H,Yano S

更新日期：2014-02-01 00:00:00