Acanthamoeba sp. promotes the survival and growth of Acinetobacter baumanii.

Abstract:

:Acinetobacter baumanii, which may be found in water, is an important emerging hospital-acquired pathogen. Free-living amoebae can be recovered from the same water networks, and it has been shown that these protozoa may support the growth of other bacteria. In this paper, we have studied potential relationships between A. baumanii and Acanthamoeba species. Two strains of A. baumanii isolated from hospital water were co-cultivated with the trophozoites or supernatants of two free-living amoebae strains: Acanthamoeba castellanii or Acanthamoeba culbertsoni. Firstly, the presence of the amoebae or their supernatants induced a major increase in A. baumanii growth, compared with controls. Secondly, A. baumanii affected only the viability of A. culbertsonii, with no effect on A. castellanii. Electron microscopy observations of the cultures investigating the bacterial location in the protozoa showed persistence of the bacteria within cyst wall even after 60 days of incubation. In our study, the survival and growth of A. baumanii could be favored by Acanthamoeba strains. Special attention should consequently be paid to the presence of free-living amoebae in hospital water systems, which can promote A. baumanii persistence.

journal_name

FEMS Microbiol Lett

authors

Cateau E,Verdon J,Fernandez B,Hechard Y,Rodier MH

doi

10.1111/j.1574-6968.2011.02261.x

subject

Has Abstract

pub_date

2011-06-01 00:00:00

pages

19-25

issue

1

eissn

0378-1097

issn

1574-6968

journal_volume

319

pub_type

杂志文章
  • Envelope ultrastructure of uncultured naturally occurring magnetotactic cocci.

    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

    pub_type: 杂志文章

    doi:10.1016/S0378-1097(02)01187-4

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

    更新日期:2003-02-14 00:00:00

  • Cell-fies: sharing microbiology with global audiences through Instagram.

    abstract::For the dissemination of microbiology and science in general, social media is an underutilized but increasingly powerful tool, and one that transcends traditional avenues for scientific outputs. In order to reach and potentially inspire a deeply interested and general public, scientists should engage with platforms su...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1093/femsle/fnz205

    authors: Hines HN

    更新日期:2019-08-01 00:00:00

  • Bacterial degradation of natural rubber: a privilege of actinomycetes?

    abstract::Using natural rubber latex as the sole source of carbon and energy 50 rubber-degrading bacteria were isolated. Out of those 50 isolates, 33 were identified as Streptomyces species and 8 as Micromonospora species. Screening of 1220 bacteria obtained from different culture collections revealed 46 additional rubber-degra...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/s0378-1097(97)00072-4

    authors: Jendrossek D,Tomasi G,Kroppenstedt RM

    更新日期:1997-05-15 00:00:00

  • Bacillus thuringiensis serovar israelensis is highly toxic to the coffee berry borer, Hypothenemus hampei Ferr. (Coleoptera: Scolytidae).

    abstract::A native collection of Bacillus thuringiensis strains was screened, once a reliable bioassay technique to assess the toxicity against the coffee berry borer (CBB) first-instar larvae was developed. A first round of bioassays with 170 strains indicated that the great majority of them showed no or very little insecticid...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/S0378-1097(03)00557-3

    authors: Méndez-López I,Basurto-Ríos R,Ibarra JE

    更新日期:2003-09-12 00:00:00

  • Respiration of [14C]alanine by the ectomycorrhizal fungus Paxillus involutus.

    abstract::The ectomycorrhizal fungus Paxillus involutus efficiently took up exogenously supplied [14C]alanine and rapidly converted it to pyruvate, citrate, succinate, fumarate and to CO2, thus providing direct evidence for the utilisation of alanine as a respiratory substrate. [14C]alanine was further actively metabolised to g...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1994.tb07080.x

    authors: Chalot M,Brun A,Finlay RD,Söderström B

    更新日期:1994-08-01 00:00:00

  • Enzymatic cocktails produced by Fusarium graminearum under submerged fermentation using different lignocellulosic biomasses.

    abstract::Fusarium graminearum was grown on four lignocellulosic substrates (corn cobs, wheat bran, hop cell walls, and birchwood) and glucose as the sole carbon source. Proteomic studies performed on the resulting enzymatic cocktails highlighted a great diversity in the number and type of proteins secreted. The cell wall-degra...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/1574-6968.12467

    authors: Debeire P,Delalande F,Habrylo O,Jeltsch JM,Van Dorsselaer A,Phalip V

    更新日期:2014-06-01 00:00:00

  • Implication of a regulator of G protein signalling (BbRGS1) in conidiation and conidial thermotolerance of the insect pathogenic fungus Beauveria bassiana.

    abstract::Beauveria bassiana is an insect pathogenic fungus widely used as a biocontrol agent to infect and control insect pests. The conidium initiates pathogenesis and mediates disease transmission, however, little is known about genetic elements that control conidiation. Here, the cloning and characterization of a regulatory...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2007.00978.x

    authors: Fang W,Scully LR,Zhang L,Pei Y,Bidochka MJ

    更新日期:2008-02-01 00:00:00

  • Ergosterol levels in two L-methionine-enriched mutants of the methylotrophic yeast Candida boidinii ICCF26.

    abstract::Two L-methionine-enriched mutants, SN-78 and SE-57, were isolated in a sulphur-deficient medium from the methylotrophic yeast Candida boidinii ICCF26. No significant differences were detected between the L-cysteine pools of the mutants and the wild-type. In mutant strain SE-57, S-adenosylmethionine and ergosterol leve...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/0378-1097(92)90144-d

    authors: Avram D,Stan R

    更新日期:1992-11-01 00:00:00

  • Characterization of Xanthomonas oryzae pv. oryzae recX, a gene that is required for high-level expression of recA.

    abstract::Analysis of the nucleotide sequence downstream from the Xanthomonas oryzae pv. oryzae recA gene reveals two orfs designated orfX and recX. The former has the potential to code for a 5.6 kDa protein of unknown function while the latter encodes for a putative 14.6 kDa protein with homology to RecX from various bacteria....

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2001.tb10929.x

    authors: Sukchawalit R,Vattanaviboon P,Utamapongchai S,Vaughn G,Mongkolsuk S

    更新日期:2001-11-27 00:00:00

  • Screening for basidiomycetous fungi capable of degrading 2,7-dichlorodibenzo-p-dioxin.

    abstract::We devised a screening method to obtain basidiomycetous fungi capable of degrading dioxins. About 200 fungal strains were selected from more than 1500 strains by their ability to decolorize Remazol brilliant blue R dye as an indicator. To attempt to eliminate the factor of dioxin sorption by mycelia, we prepared two s...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2002.tb11308.x

    authors: Sato A,Watanabe T,Watanabe Y,Harazono K,Fukatsu T

    更新日期:2002-08-06 00:00:00

  • Growth and adhesion of Enterococcus faecium L-forms.

    abstract::Comparisons of growth and surface colonisation of Enterococcus faecium L-forms and their cell-walled forms were undertaken to produce information about their ability to form sessile cells. The growth of L-forms in liquid culture was slower than that of the parent. This was reflected in their longer lag phase and slowe...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1994.tb06631.x

    authors: Jass J,Phillips LE,Allan EJ,Costerton JW,Lappin-Scott HM

    更新日期:1994-01-15 00:00:00

  • Lysogenic phage in Salmonella enterica serovar heidelberg (Salmonella Heidelberg): implications for organism tracing.

    abstract::A phage typing system using a group of 11 closely related phage (as judged by Southern analysis and restriction fragment length polymorphism analysis) was able to distinguish at least six phage types in Salmonella heidelberg of human and animal origin. Restriction fragment length polymorphism analysis using cosmid pro...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1993.tb06118.x

    authors: Harvey D,Harrington C,Heuzenroeder MW,Murray C

    更新日期:1993-04-15 00:00:00

  • High-frequency occurrence of virus-like particles with double-stranded RNA genome in Fusarium poae.

    abstract::Fifty-five geographically different strains of Fusarium poae were assayed for the presence of extrachromosomal nucleic acid elements. All strains were found to harbour double-stranded RNA (dsRNA) elements and encapsidated virus-like particles (VLP). There were great individual differences in dsRNA patterns of the vari...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1995.tb07790.x

    authors: Fekete C,Giczey G,Papp I,Szabó L,Hornok L

    更新日期:1995-09-15 00:00:00

  • Characterization of a recombinant transferrin-binding protein A (TbpA) fragment from Haemophilus parasuis serovar 5.

    abstract::Haemophilus parasuis, the etiological agent of Glässer's disease in pigs, possesses iron acquisition pathways mediated by a surface receptor that specifically bind porcine transferrin. This receptor is composed of transferrin-binding protein A (TbpA) and TbpB. As it has been reported for other gram-negative organisms,...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2010.01970.x

    authors: Martínez S,Frandoloso R,Rodríguez-Ferri EF,González-Zorn B,Gutiérrez-Martín CB

    更新日期:2010-06-01 00:00:00

  • Purification and partial characterization of an antigen specific to Lactobacillus brevis strains with beer spoilage activity.

    abstract::Certain Lactobacillus brevis strains are resistant to hop-derived compounds such as isohumulone and are able to grow in beer. In this study, we raised an antiserum against our beer spoilage laboratory strain L. brevis 578 which reacted with 23 of 24 beer spoilers and two of 13 non-spoilers in precipitation reactions u...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1997.tb12566.x

    authors: Yasui T,Yoda K

    更新日期:1997-06-15 00:00:00

  • Oligonucleotide microarray for identification of Bacillus anthracis based on intergenic transcribed spacers in ribosomal DNA.

    abstract::We developed a DNA microarray for identification of Bacillus anthracis and other phylogenetic groupings within the "Bacillus cereus group". Nucleotide sequences of 16S-23S ribosomal DNA internal transcribed spacers containing genes for tRNA(Ile) from 52 B. anthracis strains were found to be identical to sequences from...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/j.femsle.2004.09.042

    authors: Nübel U,Schmidt PM,Reiss E,Bier F,Beyer W,Naumann D

    更新日期:2004-11-15 00:00:00

  • Biosynthesis of glyantrypine by Aspergillus clavatus.

    abstract::The biosynthesis of glyantrypine from radiolabelled amino acid precursors has been shown experimentally to involve anthranilic acid, tryptophan and glycine. Low values for percentage incorporation of radiolabel into glyantrypine were partly influenced by a complex array of other novel alkaloids shown by the radiolabel...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/0378-1097(92)90714-y

    authors: Penn J,Purcell M,Mantle PG

    更新日期:1992-05-01 00:00:00

  • Routine identification of Campylobacter jejuni and Campylobacter coli from human stool samples.

    abstract::Correct identification of Campylobacter jejuni and Campylobacter coli isolates to the species or subspecies level is a cumbersome but nevertheless important task for a routine diagnostic laboratory. The widely used biochemical tests might be often misleading while more sophisticated phenotypic or genotypic methods are...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1999.tb08732.x

    authors: Steinbrueckner B,Haerter G,Pelz K,Kist M

    更新日期:1999-10-15 00:00:00

  • A rapid method for differentiating Saccharomyces sensu stricto strains from other yeast species in an enological environment.

    abstract::During programs for the selection of enological yeasts, several hundred natural isolates are usually screened. The scope of these operations is to isolate strains possessing good fermentative properties without necessarily arriving at a precise species designation: in other words, to detect strains belonging to the Sa...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2006.00450.x

    authors: Nardi T,Carlot M,De Bortoli E,Corich V,Giacomini A

    更新日期:2006-11-01 00:00:00

  • Detection and quantification of virulent Aeromonas hydrophila in channel catfish tissues following waterborne challenge.

    abstract::The aim of this study was to understand the pathogenesis of motile aeromonas septicemia caused by an emergent, high virulent Aeromonas hydrophila (vAh) in channel catfish, Ictalurus punctatus Adipose fin clipped catfish were challenged with vAh using a waterborne challenge method, and the distribution of vAh over a ti...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1093/femsle/fnw080

    authors: Zhang D,Moreira GS,Shoemaker C,Newton JC,Xu DH

    更新日期:2016-05-01 00:00:00

  • Addiction systems antagonize bacterial adaptive immunity.

    abstract::CRISPR-Cas systems provide adaptive immunity against mobile genetic elements, but employment of this resistance mechanism is often reported with a fitness cost for the host. Whether or not CRISPR-Cas systems are important barriers for the horizontal spread of conjugative plasmids, which play a crucial role in the spre...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1093/femsle/fnz047

    authors: van Sluijs L,van Houte S,van der Oost J,Brouns SJ,Buckling A,Westra ER

    更新日期:2019-03-01 00:00:00

  • A new cis-encoded sRNA, BsrH, regulating the expression of hemH gene in Brucella abortus 2308.

    abstract::A total of 129 sRNA candidates were identified in Brucella abortus 2308 in our previous work, and one candidate with potential to regulate expression of hemH gene was further analyzed in this study. We found that the novel sRNA can inhibit the expression of hemH and called it BsrH (Brucella sRNA regulating HemH). The ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1093/femsle/fnu017

    authors: Peng X,Dong H,Wu Q

    更新日期:2015-01-01 00:00:00

  • Allelic exchange and site-directed mutagenesis probe the contribution of ActA amino-acid variability to phosphorylation and virulence-associated phenotypes among Listeria monocytogenes strains.

    abstract::To test the hypothesis that actA allelic variation contributes to virulence differences among Listeria monocytogenes strains, cell-to-cell spread and intracellular ActA phosphorylation patterns were characterized for 14 wild-type isolates and selected isogenic mutants. Our data show that (i) while actA allelic variati...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2005.00041.x

    authors: Roberts AJ,Wiedmann M

    更新日期:2006-01-01 00:00:00

  • Purification and characterization of membrane-bound CO-reactive hemoprotein from Tetrahymena pyriformis mitochondria.

    abstract::A CO-reactive hemoprotein was purified from the mitochondrial membrane fraction of Tetrahymena pyriformis. It showed absorption peaks at 615 and 455 nm in the reduced form and an alpha peak at 565 nm in the pyridine ferrohemochrome spectrum. Although the spectral properties were apparently similar to those of 'cytochr...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1993.tb06423.x

    authors: Inokuchi A,Fukumori Y

    更新日期:1993-08-15 00:00:00

  • Comparative analysis of Methicillin-Resistant Staphylococcus aureus (MRSA) and Borderline Oxacillin Resistant Staphylococcus aureus (BORSA) in community and food of animal origin.

    abstract::The aim of this study was to illustrate the relative pervasiveness of Borderline Oxacillin Resistant Staphylococcus aureus (BORSA) and Methicillin-Resistant Staphylococcus aureus (MRSA) in community and food of animal origin and their relationship with other genetic determinants. Staphylococcus aureus isolates were su...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1093/femsle/fnaa201

    authors: Zehra A,Gulzar M,Singh R,Kaur S,Gill JPS

    更新日期:2020-12-22 00:00:00

  • Efflux of choline and glycine betaine from osmoregulating cells of Escherichia coli.

    abstract::We present evidence that glycine betaine (betaine) which was synthesized from choline was excreted and reaccumulated in osmoregulating cells of Escherichia coli. Choline which was accumulated in bet mutants defective in betaine synthesis was shown to be excreted in response to betaine uptake. Our data suggest that E. ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1016/0378-1097(92)90395-5

    authors: Lamark T,Styrvold OB,Strøm AR

    更新日期:1992-09-15 00:00:00

  • Predicting sigma28 promoters in eleven Shewanella genomes.

    abstract::An iterative position-specific score matrix (PSSM)-based approach was used to predict sigma(28) promoters in 11 Shewanella genomes. The Shewanella Correlation Browser was used to distinguish true-positive predictions from false-positive predictions in Shewanella oneidensis MR-1 by generating a sigma(28)-regulated tran...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2008.01175.x

    authors: Song W,Juhn FS,Naiman DQ,Konstantinidis KT,Gardner TS,Ward MJ

    更新日期:2008-06-01 00:00:00

  • MJ0400 from Methanocaldococcus jannaschii exhibits fructose-1,6-bisphosphate aldolase activity.

    abstract::The central carbon metabolism is well investigated in bacteria, but this is not the case for archaea. MJ0400-His(6) from Methanocaldococcus jannaschii catalyzes the cleavage of fructose-1,6-bisphosphate (FBP) to glyceraldehyde-3-phosphate and dihydroxyacetone phosphate with a V(max) of 33 mU mg(-1) and a K(m) of 430 m...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2008.01079.x

    authors: Samland AK,Wang M,Sprenger GA

    更新日期:2008-04-01 00:00:00

  • The ability of Vibrio vulnificus to use a synthetic hydrophilic heme compound, Fe-TPPS, as a single iron source.

    abstract::Vibrio vulnificus, an opportunistic human pathogen, can obtain iron from a variety of heme proteins. This process involves the digestion of heme proteins by an exoprotease to liberate protoheme (iron-protoporphyrin IX). In the present study, we tested whether this pathogen also uses a synthetic heme compound, Fe-alpha...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.1999.tb13452.x

    authors: Miyoshi S,Kamei T,Inami Y,Ota Y,Yamamoto S,Tomochika K,Shinoda S

    更新日期:1999-03-01 00:00:00

  • New genus-specific primers for the PCR identification of novel isolates of the genus Streptomonospora.

    abstract::The halophilic actinomycete genus Streptomonospora, forming a distinct branch in the 16S rRNA gene phylogenetic tree adjacent to the genera Nocardiopsis and Thermobifida, was first proposed by Cui et al. to accommodate the species type Streptomonospora salina. During a biodiversity and taxonomic study on halophilic fi...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章

    doi:10.1111/j.1574-6968.2006.00402.x

    authors: Zhi XY,Tang SK,Li WJ,Xu LH,Jiang CL

    更新日期:2006-10-01 00:00:00