Abstract:
:Bacillus anthracis and Bacillus cereus are closely related pathogenic organisms that are difficult to differentiate phenotypically or genotypically. It is well known that vegetative and spore forms of bacilli are quite distinct both morphologically and chemically, but spore-specific chemical markers allowing these species to be distinguished have not been previously described. By using gas chromatography-mass spectrometry, vegetative cells and spores of the two species were shown to exhibit distinct carbohydrate profiles. Profiles of vegetative B. anthracis typically contained high levels of galactose but did not contain galactosamine, whereas B. cereus contained galactosamine and generally low levels of galactose. Spore cultures exhibited unique carbohydrate profiles compared with those of vegetative cultures. B. anthracis spore profiles contained rhamnose alone, whereas B. cereus spore profiles contained rhamnose and fucose. Additionally, two spore-specific O-methylated methylpentoses were discovered. Both B. anthracis and B. cereus spores contained 3-O-methyl rhamnose, whereas B. cereus spores also contained 2-O-methyl rhamnose. Carbohydrate profiling is demonstrated to be a powerful tool for differentiating the two closely related species. Differentiation does not depend on whether organisms are in the vegetative or spore stage of growth.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Fox A,Black GE,Fox K,Rostovtseva Sdoi
10.1128/JCM.31.4.887-894.1993subject
Has Abstractpub_date
1993-04-01 00:00:00pages
887-94issue
4eissn
0095-1137issn
1098-660Xjournal_volume
31pub_type
杂志文章abstract::The RD2 region of the internalization-associated gene prtF1, which encodes the fibronectin-binding repeat domain type 2 of protein F1, plays a crucial role in the entry of group A streptococci (GAS) into epithelial cells. A molecular study of the variability of the RD2 region was carried out with 77 independent Italia...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.42.2.639-644.2004
更新日期:2004-02-01 00:00:00
abstract::The Abbott RealTime MTB (RT MTB) assay is a new automated nucleic acid amplification test for the detection of Mycobacterium tuberculosis complex (MTBC) in clinical specimens. In combination with the RealTime MTB INH/RIF (RT MTB INH/RIF) resistance assay, which can be applied to RT MTB-positive specimens as an add-on ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01144-16
更新日期:2016-12-01 00:00:00
abstract::Genetic studies of serogroup 6 isolates ofStreptococcus pneumoniaeidentified putative serotype 6E. Although its capsular polysaccharide structure has not been elucidated, putative serotype 6E is described in an increasing number of studies as a potentially new serotype. We show here that SPEC6B, which is widely used a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03194-15
更新日期:2016-04-01 00:00:00
abstract::Methicillin-resistant Staphylococcus aureus (MRSA) is an important pathogen that has been responsible for major nosocomial epidemics worldwide. For infection control programs, rapid and adequate detection of MRSA is of great importance. We developed a rapid and high-throughput molecular screening approach that consist...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00808-14
更新日期:2014-08-01 00:00:00
abstract::The description and evaluation of a PCR-based assay for the detection and species identification of the eight known human herpesviruses are presented. Two primer pairs targeting well-conserved regions of the genome allowed the amplification of the DNAs of all known human herpesviruses at a high level of sensitivity (1...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.9.3274-3279.2000
更新日期:2000-09-01 00:00:00
abstract::We standardized and assessed the performance of an in-house microtiter assay for determining the susceptibilities of Mycobacterium tuberculosis clinical isolates to isoniazid based on mycobacteriophage amplification technology. Seventy isolates (43 resistant and 27 sensitive according to the BACTEC 460 radiometric met...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.44.1.201-205.2006
更新日期:2006-01-01 00:00:00
abstract::Based on 16S rRNA gene PCR, no significant difference was observed in rates of detection of Helicobacter species in intestinal biopsy specimens from 160 Chinese inflammatory bowel disease (IBD) patients (10%) and 80 controls (6.3%). By using a [(13)C]urea breath test, the H. pylori infection rate in 208 Chinese IBD pa...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02630-10
更新日期:2011-05-01 00:00:00
abstract::Group A streptococcus (GAS) species cause bacterial pharyngitis in both adults and children. Early and accurate diagnosis of GAS is important for appropriate antibiotic therapy to prevent GAS sequalae. The Revogene Strep A molecular assay (Meridian Bioscience Canada Inc, Quebec City, QC, Canada) is an automated real-t...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01775-19
更新日期:2020-06-24 00:00:00
abstract::The recovery of Mycobacterium tuberculosis from sputa positive or negative for acid-fast bacilli that were stored for 17 +/- 7 days and inoculated in the BACTEC MGIT 960 system (MGIT) was higher than that from sputa inoculated in Lowenstein-Jensen medium. MGIT is useful for isolation of M. tuberculosis from sputa subj...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01985-06
更新日期:2007-02-01 00:00:00
abstract::The frequency of and risk factors for methicillin-resistant Staphylococcus aureus (MRSA) transmission from a MRSA index person to household contacts were assessed in this prospective study. Between January 2005 and December 2007, 62 newly diagnosed MRSA index persons (46 patients and 16 health care workers) and their ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01499-09
更新日期:2010-01-01 00:00:00
abstract::In Korea, vancomycin-resistant enterococci have become important nosocomial pathogens since the late 1990s, and most vancomycin-resistant enterococcal isolates have been VanA phenotype-vanA genotype strains. In 2001, we experienced an outbreak of VanB phenotype-vanA genotype vancomycin-resistant enterococci at a unive...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.42.4.1785-1786.2004
更新日期:2004-04-01 00:00:00
abstract::Sputum smear microscopy is an easy, inexpensive, and rapid method for detecting tubercle bacilli when there are more than 10,000 bacilli/ml in the original sputum. Furthermore, because the microscopic method provides not only quantitative, but also qualitative information, such as the shape of bacilli, it has remained...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00370-11
更新日期:2011-10-01 00:00:00
abstract::In the era after the introduction of the meningococcal serogroup C conjugate vaccine, from 1 January 2003 to 31 December 2010, serogroup B meningococci were the major cause of invasive meningococcal disease in the province of Québec, Canada, being responsible for 72% of all meningococcal disease cases. Of the 334 inva...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.06835-11
更新日期:2012-05-01 00:00:00
abstract::A total of 137 strains of Staphylococcus species were blindly tested by four rapid serological assays, and the results were compared with those of the tube coagulase assay. For the S. aureus isolates, the Sero-STAT Staph assay gave six false-negative results, four of which were for methicillin-resistant strains. The A...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.19.5.703-704.1984
更新日期:1984-05-01 00:00:00
abstract::Mucor ramosissimus Samutsevitsch is presented for the first time as an etiologic agent of cutaneous zygomycosis in a patient with aplastic anemia on immunosuppressive therapy. This report also represents the third case caused by this species reported in the literature. A biopsy taken from a lesion on the patient's thi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.9.2523-2525.1993
更新日期:1993-09-01 00:00:00
abstract::Currently, no agar-based susceptibility testing method has been standardized for testing dermatophytes. We describe a newly developed agar-based method employing disk diffusion assay to test the susceptibility of 47 isolates of dermatophytes against 8 antifungals. Our results show that the method is reproducible, is s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01357-10
更新日期:2010-10-01 00:00:00
abstract::Commercially available latex agglutination and coagglutination reagents were evaluated for their ability to detect bacterial antigens in the sera of 165 patients to determine their suitability for rapid diagnosis of pneumonia. These reagents were used to detect the polysaccharide capsular antigens of Haemophilus influ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.2.248-250.1987
更新日期:1987-02-01 00:00:00
abstract::Nineteen Rhizomucor miehei and Rhizomucor pusillus isolates were assayed for their ability to utilize 87 various substrates as a single carbon source. Besides a difference in sucrose utilization, distinctive differences were found in the utilization of glycine, phenylalanine, and beta-alanine. Five isoenzyme systems a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.7.2153-2156.1998
更新日期:1998-07-01 00:00:00
abstract::Small round-structured viruses (SRSVs) or Norwalk-like viruses have been implicated as an important causative agent of gastroenteritis outbreaks. We used the relatively newly developed recombinant enzyme immunoassays (EIAs) to determine the seroprevalence of Norwalk virus (NV) and Mexico virus (MxV) in a family-based ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.9.2381-2385.1997
更新日期:1997-09-01 00:00:00
abstract::Molecular genotyping of strains of Trichophyton rubrum and T. mentagrophytes from patients with onychomycosis of the toes was performed to ascertain whether the fungal genotype changes over the course of time as sequential samples were obtained from patients receiving antifungal therapy and during follow-up. Sixty-six...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.39.9.3260-3266.2001
更新日期:2001-09-01 00:00:00
abstract::We describe a central venous catheter-related (Port-A-Cath; Smiths Industries Medical Systems [SIMS] Deltec, Inc., St. Paul, Minn.) infection caused by Rhodotorula glutinis in a 51-year-old man with nasopharyngeal carcinoma. He was treated with fluconazole for 8 weeks and had the catheter removed. Two isolates of R. g...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.2.857-859.2003
更新日期:2003-02-01 00:00:00
abstract::Ureaplasma parvum and Ureaplasma urealyticum are sexually transmitted, opportunistic pathogens of the human urogenital tract. There are 14 known serovars distributed between the two species. For decades, it has been postulated based upon limited data that virulence is related to serotype specificity. The results were ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00637-11
更新日期:2011-08-01 00:00:00
abstract::Because of its low yield in unselected specimens, stool culture is often cost ineffective. We tested 55 fecal samples from Fairfax Hospital (46 patients with diarrhea and 9 from controls without diarrhea) for lactoferrin by latex agglutination (LFLA) with the Leukotest (Techlab, Blacksburg, Va.) as a marker for inflam...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.4.928-932.1996
更新日期:1996-04-01 00:00:00
abstract::Determination of anti-hepatitis E virus (anti-HEV) antibodies is still enigmatic. There is no gold standard, and results obtained with different assays often diverge. Herein, five assays were compared for detection of anti-HEV IgM and IgG. Serum samples from 500 Swedish blood donors and 316 patients, of whom 136 had s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02343-15
更新日期:2016-03-01 00:00:00
abstract::Many truly human immunodeficiency virus (HIV) antibody-negative serum samples may be unnecessarily subjected to costly and time-consuming Western blots (immunoblots). An investigation was undertaken to evaluate the efficiency of using a recombinant protein-based enzyme immunosorbent assay (EIA; Cambridge BioScience [C...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.6.1169-1171.1990
更新日期:1990-06-01 00:00:00
abstract::Serological tests to detect Trypanosoma cruzi antibodies have been used for screening blood donors, for epidemic studies, and for diagnosis of probably infected persons. Among different tests, the enzyme-linked immunosorbent assay (ELISA) with total, semipurified, or synthetic antigens has been widely used, mainly due...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.39.12.4390-4395.2001
更新日期:2001-12-01 00:00:00
abstract::To improve the understanding of the relative importance of serotypes of rotavirus in dehydrating diarrhea, we examined the correlation of clinical characteristics and disease severity with serotype in 2,441 diarrheal episodes among children younger than 2 years of age in rural Bangladesh. Of 764 rotavirus-associated e...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.12.3234-3238.1992
更新日期:1992-12-01 00:00:00
abstract::For testing bacterial susceptibility to PD131628, a 5-micrograms disk and the following tentative interpretive criteria may be used: > or = 19 mm for susceptible (MIC, < or = 1.0 micrograms/ml), 16 to 18 mm for intermediate (MIC, 2.0 micrograms/ml), and < or = 15 mm for resistant (MIC, > or = 4.0 micrograms/ml). For s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.1.235-238.1995
更新日期:1995-01-01 00:00:00
abstract::A large pool of refined endotoxin was prepared from Escherichia coli O113 by extraction with hot acqueous phenol. It was characterized chemically and biologically and will be available for a reference standard designated as reference endotoxin EC. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::Disseminated Mycobacterium avium infection is a common complication in late-stage AIDS. We describe a patient seropositive for human immunodeficiency virus with a disseminated infection caused by mycobacteria. Acid-fast rods were visible by microscopy in stool and bone marrow and in specimens from skin, liver, spleen,...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.32.3.828-831.1994
更新日期:1994-03-01 00:00:00