International Microbiology Journal Impact Factor & Information

Publisher: Sociedad Española de Microbiología, Hemeroteca Científica Catalana

Journal description

International Microbiology, the official journal of the Spanish Society for Microbiology (SEM), aims to advance and disseminate information in the fields of basic and applied microbiology among microbiologists around the world. The journal publishes two kinds of contributions: Articles (original research and short reviews) and Complements (perspectives, opinion, book reviews, editorials, etc). A feature of International Microbiology that distinguishes it from many other microbiology journals is a broadening of the term ''microbiology'' to include eukaryotic microorganisms, as well as the publication of articles about microbiologists and their work and questions related to the history and sociology of this science. It offers short publication times and a complete copy-editing service. The journal encourages submissions in the following areas: Microorganisms (viruses, prokaryotes, protists, moulds, yeast); Microbial biology (taxonomy, genetics, morphology, physiology, ecology, pathogenesis); Microbial applications (environmental, soil, industrial, food and medical microbiology, biodeterioration, bioremediation, biotechnology); State of the art of microbiology in different regions of the world; Outstanding microbiologists; Microbiology and education; The history and sociology of microbiology.

Current impact factor: 1.34

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 1.341
2012 Impact Factor 2.556
2011 Impact Factor 1.8
2010 Impact Factor 1.635
2009 Impact Factor 1.8
2008 Impact Factor 2.197
2007 Impact Factor 2.617
2006 Impact Factor 2.455
2005 Impact Factor 1.868

Impact factor over time

Impact factor

Additional details

5-year impact 2.07
Cited half-life 7.90
Immediacy index 0.00
Eigenfactor 0.00
Article influence 0.57
Website International Microbiology website
Other titles International microbiology (Online)
ISSN 1139-6709
OCLC 48268850
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Hemeroteca Científica Catalana

  • Pre-print
    • Author cannot archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Creative Commons Attribution Non-Commercial Share Alike 3.0 España License
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Publisher's version/PDF may be used
    • All titles are open access journals
    • This policy is an exception to the default policies of 'Hemeroteca Científica Catalana'
  • Classification
    ​ blue

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Hepatitis C virus (HCV) is one of the major causes of chronic hepatitis, cirrhosis, and hepatocellular carcinoma, and the development of HCV-related disease is accelerated in individuals coinfected with human immunodeficiency-1 virus (HIV). In the present study, we correlated different host single-nucleotide polymorphisms (SNPs) in the IL28B, CTLA4, LDLr, and HFE genes and mitochondrial DNA (mtDNA) haplogroups with the outcome of HCV infection and the response to pegylated-interferon plus ribavirin (pegIFN-RBV) treatment. Our study population consisted of 63 Majorcan patients coinfected with HCV and HIV and 59 anonymous unrelated controls. Whereas the population frequency of IL28B alleles was similar to that found in a North-American cohort of European descent, the frequency of the rs12979860 C allele was lower than that determined in other cohorts from Spain. The frequencies of CTLA4 and LDLr polymorphisms were comparable to those reported in other populations. Significant differences between cases and control cohorts occurred only for the H63D mutation of the HFE gene. There were no other differences in the frequencies of other polymorphisms or mtDNA haplogroups. The IL28B rs12979860 CC genotype was shown to be associated with a rapid virological response, and the spontaneous viral clearance rate for HCV was higher in patients with the CTLA4+49 G allele. There was no relationship between SNPs in the LDLr and HFE genes and mtDNA haplogroups and the response to treatment. Our results suggest that the host genetic background plays a significant role in the pegIFN-RBV response of patients coinfected with HCV and HIV.
    International Microbiology 03/2014; 17(1):11-20. DOI:10.2436/20.1501.01.203
  • [Show abstract] [Hide abstract]
    ABSTRACT: The term amyloidosis is used to refer to a family of pathologies altering the homeostasis of human organs. Despite having a name that alludes to starch content, the amyloid accumulations are made up of proteins that polymerize as long and rigid fibers. Amyloid proteins vary widely with respect to their amino acid sequences but they share similarities in their quaternary structure; the amyloid fibers are enriched in beta-sheets arranged perpendicular to the axis of the fiber. This structural feature provides great robustness, remarkable stability, and insolubility. In addition, amyloid proteins specifically stain with certain dyes such as Congo red and thioflavin-T. The aggregation into amyloid fibers, however, it is not restricted to pathogenic processes, rather it seems to be widely distributed among proteins and polypeptides. Amyloid fibers are present in insects, fungi and bacteria, and they are important in maintaining the homeostasis of the organism. Such findings have motivated the use of the term "functional amyloid" to differentiate these amyloid proteins from their toxic siblings. This review focuses on systems that have evolved in bacteria that control the expression and assembly of amyloid proteins on cell surfaces, such that the robustness of amyloid proteins are used towards a beneficial end.
    International Microbiology 01/2014; 17(2):65-73. DOI:10.2436/20.1501.01.208
  • International Microbiology 01/2014;
  • International Microbiology 01/2014; 17(1):41-48. DOI:10.2436/20.1501.01.206
  • [Show abstract] [Hide abstract]
    ABSTRACT: A specific and sensitive multiplex PCR (mPCR) method was developed as a useful tool for the simultaneous detection of two important flatfish pathogens in marine aquaculture, Tenacibaculum maritimum and Edwardsiella tarda. In fish tissues, the average detection limit for these mPCR-amplified organisms was 2 x 10(5) +/- 0.2 CFU/g and 4 x 10(5) +/- 0.3 CFU/g, respectively. These values are similar or even lower than those previously obtained using the corresponding single PCR. Moreover, mPCR did not produce any nonspecific amplification products when tested against 36 taxonomically related and unrelated strains belonging to 33 different bacterial species. Large amounts of DNA from one of the target bacterial species in the presence of low amounts from the other did not have a significant effect on the amplification sensitivity of the latter.
    International Microbiology 01/2014; 17(2):111-117. DOI:10.2436/20.1501.01.213
  • [Show abstract] [Hide abstract]
    ABSTRACT: A microcosm cultivation-based method was set up to investigate the growth of ammonia-oxidizing archaea (AOA), isolated from a water sample acquired at a depth of 50 m from the northern basin of Lake Kivu. For this purpose, both CARD-FISH and qPCR targeting of archaeal 16S rRNA and amoA genes were used. Archaeal cell growth at the end of the 246-day microcosm experiment accounted for 35 % of the SybrGold-stained cells, which corresponded to 6.61 × 10^6 cells/ml and 1.76 ± 0.09 × 10^6 archaeal 16S rRNA gene copies/ml. Clone libraries and DGGE fingerprinting confirmed the dominance of AOA phylotypes in the archaeal community microcosm. The majority of the identified archaeal 16S rRNA gene sequences in the clone libraries were affiliated with Thaumarchaeota Marine Group 1.1a. Subsequent cultivation of the AOA community on deep-well microtiter plates in medium containing different carbon sources to stimulate archaeal growth failed to show significant differences in archaeal abundance (ANOVA t14 = –1.058, P = 0.308 and ANOVA t14 = 1.584, P = 0.135 for yeast extract and simple organic acids, respectively). The lack of growth stimulation by organic compounds is in concordance with the oligotrophic status of Lake Kivu. Finally, the addition of antibiotics to the growth medium resulted in archaeal cell counts that were signifi cantly lower than those obtained from cultures in antibiotic-free medium (ANOVA t14 = 12.12, P < 0.001).
    International Microbiology 12/2013; 16(3):177-189. DOI:10.2436/20.1501.01.192
  • [Show abstract] [Hide abstract]
    ABSTRACT: The attachment of Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 28213 onto six different materials used to manufacture dental implant abutments was quantitatively determined after 2 and 24 h of contact between the materials and the bacterial cultures. The materials were topographically characterized and their wettability determined, with both parameters subsequently related to bacterial adhesion. Atomic force microscopy, interferometry, and contact angle measurement were used to characterize the materials' surfaces. The results showed that neither roughness nor nano-roughness greatly influenced bacterial attachment whereas wettability strongly correlated with adhesion. After 2 h the degree of E. coli attachment markedly differed depending on the material whereas similar differences were not observed for S. aureus, which yielded consistently higher counts of adhered cells. Nevertheless, after 24 h the adhesion of the two species to the different test materials no longer significantly differed, although on all surfaces the numbers of finally adhered E. coli were higher than those of S. aureus.
    International Microbiology 12/2013; 16(4):235-42. DOI:10.2436/20.1501.01.199
  • [Show abstract] [Hide abstract]
    ABSTRACT: Multi-drug resistant Klebsiella pneumoniae isolates are associated with nosocomial infections, in which colonized patients act as a reservoir and source of cross-infection for other patients. In this study, the antimicrobial susceptibility of K. pneumoniae was tested by microdilution using the commercial method MicroScan (Siemens). The genetic relatedness of K. pneumoniae strains was determined by pulsed field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). PCR experiments were carried out to obtain primer sets and positive PCR products were purified and sequenced. From May 2007 until December 2009, 98 clonally related K. pneumoniae isolates were detected from clinical samples of 38 patients admitted to the University Hospital of Bellvitge, Barcelona, Spain, including 27 admitted to the intensive care unit (ICU). The most important sources of the isolates were: lower respiratory tract (n = 12), urine (n = 12), and blood (n = 11). The strains were resistant to amoxicillin/clavulanic acid, piperacillin/tazobactam, tobramycin, amikacin, and ciprofloxacin, and had diminished susceptibility to cefepime. All the isolates shared a common PFGE pattern related to sequence type 14 after MLST analysis. In K. pneumoniae isolates and their transconjugants, the bla(OXA-1) gene was located in the variable region of a class I integron that also contains the aac(6')Ib-cr gene. Sequencing of the quinolone resistance determinant regions of gyrA and parC revealed a S83F change in GyrA and no changes in ParC.
    International Microbiology 12/2013; 16(4):227-33. DOI:10.2436/20.1501.01.198