FEMS Microbiology Letters (FEMS MICROBIOL LETT)

Publisher: Federation of European Microbiological Societies, Oxford University Press (OUP)

Journal description

FEMS Microbiology Letters publishes original articles and MiniReviews on all aspects of microbiology except virology (other than bacteriophages). The Editors give priority to concise papers that merit urgent publication by virtue of their originality, general interest and their contribution to new developments in microbiology. Areas of special interest include: molecular biology and genetics; genomics; microbial biochemistry and physiology; structure and development; pathogenicity; medical and veterinary microbiology; plant-microbial interactions; applied microbiology and microbial biotechnology; systematics, genomics and bioinformatics. Papers can deal with any sort of microorganisms: bacteria and bacteriophage, filamentous fungi and yeasts, or protozoa.

Current impact factor: 2.72

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 2.723
2012 Impact Factor 2.049
2011 Impact Factor 2.044
2010 Impact Factor 2.04
2009 Impact Factor 2.199
2008 Impact Factor 2.021
2007 Impact Factor 2.274
2006 Impact Factor 2.068
2005 Impact Factor 2.057
2004 Impact Factor 1.84
2003 Impact Factor 1.932
2002 Impact Factor 1.804
2001 Impact Factor 1.806
2000 Impact Factor 1.615
1999 Impact Factor 1.673
1998 Impact Factor 1.581
1997 Impact Factor 1.56
1996 Impact Factor 1.735
1995 Impact Factor 1.488
1994 Impact Factor 1.597
1993 Impact Factor 1.296
1992 Impact Factor 1.334

Impact factor over time

Impact factor

Additional details

5-year impact 2.29
Cited half-life 9.50
Immediacy index 0.93
Eigenfactor 0.02
Article influence 0.75
Website FEMS Microbiology Letters website
Other titles FEMS microbiology letters, Federation of European Microbiological Societies microbiology letters, Microbiology letters, FEMS microbiology ecology, FEMS microbiology reviews, FEMS microbiology index, FEMS microbiology immunology
ISSN 0378-1097
OCLC 3217327
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

Oxford University Press (OUP)

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 months embargo
  • Conditions
    • Pre-print can only be posted prior to acceptance
    • Pre-print must be accompanied by set statement (see link)
    • Pre-print must not be replaced with post-print, instead a link to published version with amended set statement should be made
    • Pre-print on author's personal website, employer website, free public server or pre-prints in subject area
    • Post-print in Institutional repositories or Central repositories
    • Publisher's version/PDF cannot be used
    • Published source must be acknowledged
    • Must link to publisher version
    • Set phrase to accompany archived copy (see policy)
    • Eligible authors may deposit in OpenDepot
    • The publisher will deposit in PubMed Central on behalf of NIH authors
    • Publisher last contacted on 19/02/2015
    • This policy is an exception to the default policies of 'Oxford University Press (OUP)'
  • Classification
    ​ yellow

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The stability of the plasmid mediated virulence factors of Bacillus anthracis, a tripartite toxin located on pXO1 and an anti-phagocytic capsule encoded by genes located on pXO2, following long term storage was investigated. A collection of 159 isolates of B. anthracis were collected from the Kars region of Turkey between 2000 and 2013 and stored at -20°C in Brucella broth supplemented with 20% glycerine. 142 isolates were recovered of which one failed to express a capsule upon primary culture. A further 35 isolates yielded a mixture of mucoid and non-mucoid colonies, the majority of which had lost the pXO2 plasmid as determined by PCR analysis. Results would suggest that pXO2 is more unstable than pXO1 and that this instability increases with the length of storage. It is possible that the pXO2 deficient isolates of B. anthracis described here could be developed into a vaccine to treat at risk animals in the Kars region as many animal vaccines are based upon pXO2 deficiency. © FEMS 2015. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
    FEMS Microbiology Letters 06/2015; DOI:10.1093/femsle/fnv102
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    ABSTRACT: Urinary tract infection (UTI) is one of the most prevalent infections in humans. In ≥80% of cases, the etiologic agents are strains of uropathogenic Escherichia coli (UPEC), which commonly reside in the gastrointestinal tract. Lactobacilli have been shown to prevent UTI reoccurrence by restoring the urogenital microbiota when administered vaginally or orally. The goal of this study was to determine if commercial probiotic Lactobacillus spp. reduce or clear uropathogenic Escherichia coli in vitro. Results show that it is likely that lactobacilli may, in addition to restoring a healthy urogenital microbiota through acidification of their environment, also displace adhering UPEC and cause a reduction of infection. © FEMS 2015. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
    FEMS Microbiology Letters 06/2015; DOI:10.1093/femsle/fnv096
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    ABSTRACT: Facsimile microscopes have been used to examine the possibilities of van Leeuwenhoek microscopes with a range of magnifications, particularly to confirm that bacteria can be seen if the microscope is strong enough. The relevance of historical microbiology in education is also illustrated by adapting versions of van Leeuwenhoek's pepper water experiment and Beijerinck's use of bioluminescent bacteria as oxygen probes. These experiments can demonstrate fundamentals such as enrichment and isolation cultures, physiology and experimental planning as well as critical reading of published material. © FEMS 2015. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.
    FEMS Microbiology Letters 04/2015; 362(9). DOI:10.1093/femsle/fnv057
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    ABSTRACT: Environmental factors can cause changes in the content of the fungal genome during evolution. In this study, a fungus used as a biocontrol agent, Trichoderma virens FT-333 (from a tropical marine climate) has been isolated. The genome (38.6 Mbp; GC content, 49.43%) has a total of 12 751 proteins. Gene ontology (GO) terms (cellular component and molecular function) and KEGG analyses demonstrated the importance of the secretion function in FT-333. Compared to the other Trichoderma species, copy number of genes related to defense and nutrient utilization was variable. © FEMS 2015. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.
    FEMS Microbiology Letters 03/2015; DOI:10.1093/femsle/fnv036
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    ABSTRACT: Conventional mycological identifications based on the recognition of morphological characteristics can be problematic. A relatively new methodology applicable for the identification of microorganisms is based on the exploitation of taxon- specific mass patterns recorded from abundant cell proteins directly from whole-cell preparations, using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). This study reports the application of MALDI-TOF MS for the differentiation and identifications of black yeasts, isolated from the respiratory tracts of patients with cystic fibrosis (CF). Initial phenotypic and DNA sequence-based analyses identified these isolates to be Exophiala dermatitidis. The type strains of E. dermatitidis (CBS 207.35(T)) and other species of Exophiala were included in the MALDI-TOF MS analyses to establish the references for comparing the mass spectra of the clinical isolates of Exophiala. MALDI-TOF MS analyses exhibited extremely close relationships among the clinical isolates and with the spectra generated from the type strain of E. dermatitidis. The relationships observed between the E. dermatitidis strains from the MALDI-TOF MS profiling analyses were supported by DNA sequence-based analyses of the rRNA ITS1 and ITS2 regions. These data demonstrated the applicability of MALDI-TOF MS as a reliable, rapid and cost-effective method for the identification of isolates of E. dermatitidis and other clinically relevant fungi and yeasts that typically are difficult to identify by conventional methods. © FEMS 2014. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
    FEMS Microbiology Letters 01/2015; 362(1):1 - 6. DOI:10.1093/femsle/fnu016