Abstract:
:Nocardia asteroides complex organisms derived from human specimens between 1979 and 1992 were identified to the species level. Of 117 N. asteroides complex organisms, 34 (29%) were N. farcinica, 28 (24%) were N. nova, and 55 (47%) were N. asteroides sensu stricto. An analysis of the specimen sites from which the organisms were derived showed that isolates derived from blood, brain, or bone marrow were more likely to be N. farcinica than the other two species. A study of the virulence of ten strains of each species was undertaken, using a mouse model with intravenous inoculation. The 50% lethal doses (LD50) for N. farcinica were significantly lower than those of the other two species. LD50 values for N. nova and N. asteroides were not significantly different. The above data confirming the greater virulence of N. farcinica support the identification of species within the N. asteroides complex.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Desmond EP,Flores Mdoi
10.1111/j.1574-6968.1993.tb06335.xsubject
Has Abstractpub_date
1993-07-01 00:00:00pages
281-4issue
3eissn
0378-1097issn
1574-6968journal_volume
110pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1993.tb06360.x
更新日期:1993-07-15 00:00:00
abstract::Massive Open Online Courses (MOOCs) dominated discussions of online learning and higher education in the news media and in universities between 2012 and 2015. However, fashions pass, needs change and technology evolves. This Commentary looks back, pauses on the present, and then looks forward. Whilst MOOCs are a signi...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnw055
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
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更新日期:2008-04-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1993.tb06379.x
更新日期:1993-08-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00373.x
更新日期:2006-08-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2002.tb11346.x
更新日期:2002-09-10 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(02)01193-X
更新日期:2003-01-28 00:00:00
abstract::The fatty acid composition during the transformation of Trypanosoma cruzi epimastigotes into metacyclic trypomastigotes (metacyclogenesis) was analysed by gas-liquid chromatography and mass spectrometry. Significant qualitative and quantitative changes in the fatty acid composition occurred during incubation of epimas...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(89)90453-9
更新日期:1989-05-01 00:00:00
abstract::Phylogenetic relationships between Tuber pseudoexcavatum and other Tuber species were investigated by studying the sequences of four genes: 5.8S-ITS2, beta-tubulin, protein kinase C and elongation factor 1alpha. The four phylogenetic trees allowed to differentiate the black truffle clade, composed of two subclades, on...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00283.x
更新日期:2006-06-01 00:00:00
abstract::Surface antigen one (Sao) is a newly identified protein from the major zoonotic pathogen, Streptococcus suis. In search of functional proteins related to the pathogenesis of Chinese S. suis 2 (SS2), unexpectedly, a variant of Sao protein was obtained. To test its prevalence in S. suis, PCR assay was adopted to address...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2007.00859.x
更新日期:2007-10-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fny097
更新日期:2018-06-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1999.tb13738.x
更新日期:1999-08-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2004.05.007
更新日期:2004-06-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2007.01058.x
更新日期:2008-03-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08601.x
更新日期:1996-12-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnz137
更新日期:2019-06-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 信件
doi:10.1111/j.1574-6968.2009.01562.x
更新日期:2009-05-01 00:00:00
abstract::beta-Glucosidase in Aspergillus nidulans was found to be both intracellular and extracellular. The intracellular beta-glucosidase was synthesized after the exhaustion of carbon source in the medium. The extracellular enzyme appeared with autolysis of the mycelium. Biosynthesis of beta-glucosidase was not induced by va...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb07969.x
更新日期:1996-01-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnw176
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journal_title:FEMS microbiology letters
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1999.tb08783.x
更新日期:1999-11-01 00:00:00
abstract::Six clinical isolates of Enterobacter cloacae isolated in a Portuguese hospital, between April 1999 and November 2000, demonstrated resistance to almost all broad-spectrum cephalosporins, except to cefepime. These isolates were susceptible to quinolones and to aminoglycosides. Isoelectric focusing demonstrated product...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(03)00891-7
更新日期:2004-01-30 00:00:00
abstract::Tachyzoites of Toxoplasma gondii multiply within the parasitophorous vacuole (PV) until the lysis of the host cell. This study was undertaken to evaluate the effect of hydroxyurea (a specific drug that arrests cell division at G1/S phase) on the multiplication of T. gondii tachyzoites in infected Vero cells. Infected ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/s0378-1097(00)00074-4
更新日期:2000-04-01 00:00:00
abstract::In this study, 52 Streptococcus suis isolates from pigs in southern China were divided into four known sequence types (STs) and six new STs, using multilocus sequence typing. Ten representative isolates were selected from 10 STs for the analysis of whole genome sequences. Virulence was assessed in 10 isolates, which w...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnaa049
更新日期:2020-03-01 00:00:00
abstract::Salicylate was found to uniquely induce a 27-kDa protein in Mycobacterium tuberculosis complex organisms but not in Mycobacterium smegmatis or Escherichia coli. The structural analogue antitubercular para-amino-salicylate also induced the 27-kDa protein but to a somewhat lower level than salicylate. Other structural a...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10843.x
更新日期:2001-09-25 00:00:00
abstract::Bordetella pertussis strains contain at least three distinct genes coding for fimbrial subunits, designated fim2, fim3, and fimX. The sequences of the fim2 and fimX genes have been published. Here we present the sequence of the fim3 gene. Proximal and distal to the fim3 gene, regions were observed that could function ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(90)90307-c
更新日期:1990-01-01 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(92)90408-g
更新日期:1992-09-15 00:00:00
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journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(95)00317-x
更新日期:1995-10-15 00:00:00
abstract::Photorhabdus (Enterobacteriaceae) bacteria are pathogenic to insects and mutualistic with entomopathogenic Heterorhabditis nematodes. Photorhabdus luminescens subsp. akhurstii LN2, associated with Heterorhabditis indica LN2, shows nematicidal activity against H. bacteriophora H06 infective juveniles (IJs). In the pres...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnw035
更新日期:2016-03-01 00:00:00
abstract::The constitutive expression vector pHY300-F1gfp was constructed to test the function of a promoter, F1, cloned from the rice epiphyte Bacillus brevis strain DX01. The DX01 cells harboring the plasmid pHY300-F1gfp were shown to produce bright green fluorescence. The results were confirmed by Western blot analysis and f...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(03)00797-3
更新日期:2003-12-05 00:00:00