Abstract:
:Members of the Streptococcus bovis group are frequent colonizers of the intestinal tract, which can also cause endocarditis. However, their ability to adhere to and colonize host tissues and the factors associated with pathogenicity are largely unknown. Here, we assessed 17 endocarditis-derived human isolates [identified here as 15 Streptococcus gallolyticus ssp. gallolyticus (S. bovis biotype I), one S. gallolyticus ssp. pasteurianus (biotype II/2) and one Streptococcus infantarius ssp. coli (biotype II/1)] for their in vitro adherence to components of the extracellular matrix (ECM). Adherence to collagen type I was found to be the most common phenotype exhibited by 76% of isolates, followed by collagen type IV (53%), fibrinogen (47%), collagen type V (35%) and fibronectin (35%). Pulsed-field gel electrophoresis analyses showed that >50% of endocarditis-derived S. gallolyticus ssp. gallolyticus isolates are genetically diverse, although two clusters of two and four isolates were observed. The diversity of strains and differences observed in adherence characteristics to distinct host ECM proteins suggest that isolates of S. gallolyticus ssp. gallolyticus produce different surface components, similar to other gram-positive pathogens, to colonize the host and cause infection.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Sillanpää J,Nallapareddy SR,Singh KV,Ferraro MJ,Murray BEdoi
10.1111/j.1574-6968.2008.01378.xsubject
Has Abstractpub_date
2008-12-01 00:00:00pages
104-9issue
1eissn
0378-1097issn
1574-6968pii
FML1378journal_volume
289pub_type
杂志文章abstract::Two-component systems are widespread in nature and constitute the most common mechanism of transmembrane signal transduction in bacteria. Recently, a functionally active two-component system consisting of malS and malR genes possibly involved in the expression of a C4-dicarboxylate transporter system (dctAB operon) wa...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2009.01589.x
更新日期:2009-06-01 00:00:00
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
更新日期:1997-06-15 00:00:00
abstract::The effect of coumarin (1,2 benzopyrone) on glucose utilisation by the anaerobic rumen fungi Neocallimastix frontalis and N. patriciarum has been compared with the effect of p-coumaric acid. Both compounds largely inhibited glucose utilisation by N. patriciarum strain Cx when present in the medium at a concentration o...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1990.tb13970.x
更新日期:1990-07-01 00:00:00
abstract::Uncultured archaeal anaerobic methanotrophs (ANMEs) are known to operate the anaerobic oxidation of methane process, an important sink for the greenhouse gas methane in natural environments. In this study, we designed 16S rRNA gene-specific primers for each of the phylogenetic groups of ANMEs (ANME-1, Guaymas Basin hy...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2009.01648.x
更新日期:2009-08-01 00:00:00
abstract::The wine yeast Saccharomyces cerevisiae is central in the production of aroma compounds during fermentation. Some of the most important yeast-derived aroma compounds produced are esters. The esters ethyl acetate and isoamyl acetate are formed from alcohols and acetyl-CoA in a reaction catalysed by alcohol acetyltransf...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00548.x
更新日期:2007-02-01 00:00:00
abstract::Phylogenetically diverse rhizobial strains endemic to Tunisia were isolated from symbiotic nodules of Lotus creticus, growing in different arid extremophile geographical regions of Tunisia, and speciated using multiloci-phylogenetic analysis as Neorhizobium huautlense (LCK33, LCK35, LCO42 and LCO49), Ensifer numidicus...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnaa084
更新日期:2020-06-01 00:00:00
abstract::Bacillus cereus strains involved in food poisoning cases of the diarrheal type may produce two different enterotoxin complexes. To facilitate the identification of hemolysin BL-enterotoxin complex (HBL) and/or the nonhemolytic enterotoxin (NHE) producing colonies a colony immunoblot procedure was developed, which allo...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2004.07.024
更新日期:2004-09-01 00:00:00
abstract::When challenged by stresses such as starvation, the soil bacterium Bacillus subtilis produces an endospore surrounded by a proteinaceous coat composed of >70 proteins that are organized into three main layers: an amorphous undercoat, lightly staining lamellar inner coat and electron-dense outer coat. This coat protect...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2009.01737.x
更新日期:2009-10-01 00:00:00
abstract::In Bordetella pertussis virulence-associated genes, including adenylate cyclase toxin (Cya), are coordinately regulated in response to environmental signals by proteins coded by the bvg-locus. We have constructed cya-lac fusions in Escherichia coli and have shown that the cya operon is not expressed in E. coli, neithe...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(91)90561-n
更新日期:1991-01-15 00:00:00
abstract::In microbial corrinoid-dependent methyltransferase systems, adventitious Co(I)-corrinoid oxidation halts catalysis and necessitates repair by ATP-dependent reductive activases. RamA, an activase with a C-terminal ferredoxin domain with two [4Fe-4S] clusters from methanogenic archaea, has been far less studied than the...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnaa128
更新日期:2020-09-01 00:00:00
abstract::Three tri-substituted spermidines, di-p-coumaroyl-caffeoylspermidine, tri-caffeoylspermidine and tri-p-coumaroylspermidine, isolated from pollen of Quercus alba, were examined for antifungal activity. Both di-p-coumaroyl-caffeoylspermidine and tri-p-coumaroylspermidine reduced mycelial growth of the oat leaf stripe pa...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10765.x
更新日期:2001-07-24 00:00:00
abstract::The plant antimicrobial peptide MiAMP1 from Macadamia integrifolia and the yeast killer toxin peptide WmKT from Williopsis mrakii are structural homologues. Comparative studies of yeast mutants were performed to test their sensitivity to these two antimicrobial peptides. No differences in susceptibility to MiAMP1 were...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2004.12.007
更新日期:2005-02-01 00:00:00
abstract::Chromobacterium violaceum is a Gram-negative opportunistic human pathogen and an inhabitant of tropical soils and waterways. Although known primarily for the synthesis of the pigment violacein, and more recently as a reporter strain for quorum sensing, clinical reports of chromobacteriosis comprise the largest block o...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00566.x
更新日期:2007-02-01 00:00:00
abstract::Enterococcus faecium, a major cause of nosocomial infections, is often isolated from conditions where biofilm is considered to be important in the establishment of infections. We investigated biofilm formation among E. faecium isolates from diverse sources and found that the occurrence and amount of biofilm formation ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/1574-6968.12418
更新日期:2014-04-01 00:00:00
abstract::The copZ gene of Bacillus subtilis encodes a copper chaperon CopZ that donates copper to the copper transporter CopA. Both genes copZ and copA are clustered to an operon and its promoter is regulated by Cu ions and CueR, a Mer-like transcriptional activator. Here we show that cadmium ions activate copZA expression as ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2004.05.031
更新日期:2004-07-01 00:00:00
abstract::The cellulase-producing fungal strain Y-94, isolated in Japan and invalidly described as Acremonium cellulolyticus nom. nud. strain Y-94, seldom forms enteroarthric conidia under nutrient starvation conditions. Phylogenetic analysis using ITS1-5.8S-ITS2 and RNA polymerase II large subunit gene sequences revealed that ...
journal_title:FEMS microbiology letters
pub_type: 信件
doi:10.1111/1574-6968.12352
更新日期:2014-02-01 00:00:00
abstract::Fusobacterium nucleatum is a common oral anaerobe associated with gingivitis, periodontal disease and preterm deliveries. Coaggregation among oral bacteria is considered to be a significant factor in dental plaque development. Adhesion to host cells was suggested to be important for the F. nucleatum virulence associat...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2005.05.055
更新日期:2005-07-15 00:00:00
abstract::How proteins reach their native conformation and location has been a major question of biology during the last 50 years. To counterbalance protein misfolding and the accumulation of aggregation products, a complex network of chaperones and proteases takes care of protein quality control in the cell. Such a chaperone n...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1093/femsle/fny121
更新日期:2018-07-01 00:00:00
abstract::Two thermophilic bacteria, which are capable of growing on starch at 60-70 degrees C under anaerobic conditions, were isolated from a sugar refinery in Uelzen and from Solar lake in Israel. On the basis of their physiological characteristics they were identified as Clostridium thermohydrosulfuricum Uel 1 and C. thermo...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(90)90429-t
更新日期:1990-05-01 00:00:00
abstract::Bacteria have the exquisite ability to maintain a precise diameter, cell length, and shape. The dimensions of bacteria size and shape are a classical metric in the distinction of bacterial species. Much of what we know about the particular morphology of any given species is the result of investigations of planktonic c...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1111/1574-6968.12602
更新日期:2014-11-01 00:00:00
abstract::Trichomonas vaginalis is a protozoan that parasitizes the human urogenital tract causing trichomoniasis, the most common non-viral sexually transmitted disease. The parasite has unique genomic characteristics such as a large genome size and expanded gene families. Ectonucleoside triphosphate diphosphohydrolase (E-NTPD...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnv221
更新日期:2016-01-01 00:00:00
abstract::Himalaya hosts a unique environment for microbial ecology. The present study aimed to explore the bioplastic producing bacterial communities along altitude gradient of Pangi-Chamba trans-Himalayan region. A total of 411 bacteria were isolated and 70 characterized at the molecular level for potential polyhydroxyalkanoa...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fny144
更新日期:2018-07-01 00:00:00
abstract::The detection of Trypanosoma cruzi kinetoplast DNA by polymerase chain reaction (PCR) amplification is a potentially powerful tool for the parasitological diagnosis of Chagas' disease. We have applied this technique in a field situation in Bolivia, where 45 children from a primary school were subjected to serological ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1994.tb07318.x
更新日期:1994-12-15 00:00:00
abstract::The formation of dormant endospores is a complex morphological process that permits long-term survival in inhospitable environments for many Gram-positive bacteria. Sporulation for the anaerobic gastrointestinal pathogen Clostridium difficile is necessary for survival outside of the gastrointestinal tract of its host....
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1111/1574-6968.12499
更新日期:2014-09-01 00:00:00
abstract::For the establishment of a diagnostic tool for mycobacterial species, a part of the dnaA gene was amplified and sequenced from clinically relevant 27 mycobacterial species as well as 49 clinical isolates. Sequence variability in the amplified segment of the dnaA gene allowed the differentiation of all species except f...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2005.00031.x
更新日期:2006-01-01 00:00:00
abstract::The filamentous ascomycete Botrytis cinerea is one of the most studied models for understanding the necrotrophic behaviour of phytopathogenic fungi. The genomes of two strains of B. cinerea have been sequenced (B05.10 and T4), which may contribute to elucidating the virulence polymorphism in this fungus. In this study...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2008.01388.x
更新日期:2008-12-01 00:00:00
abstract::Pseudomonas aeruginosa are known to have a wide physiological potential allowing them to constantly populate diverse environments leading to severe infections of humans such as septicemia, leg ulcers, and burn wounds. We set out to probe physiological characteristics of P. aeruginosa isolates from diabetic leg ulcers ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/1574-6968.12148
更新日期:2013-06-01 00:00:00
abstract::In this study, the influence of the size and surface termination of diamond nanoparticles (DNPs) on their antibacterial activity against Escherichia coli and Bacillus subtilis was assessed. The average size and distribution of DNPs were determined by dynamic light scattering and X-ray diffraction techniques. The chemi...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/1574-6968.12373
更新日期:2014-02-01 00:00:00
abstract::The development of a methodology to identify the origin of fecal pollution is important both for assessing the degree of risk posed to public health and for developing strategies to mitigate the environmental loading of pathogens associated with waterborne disease transmission. Five rep-PCR genomic fingerprinting meth...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2007.00948.x
更新日期:2007-12-01 00:00:00
abstract::In the Pseudomonas fluorescens strain ST the ability to utilize styrene as the sole carbon source is due to the presence of a plasmid, pEG. In the present report we show that pEG contains two inverted repeat sequences and we present evidence indicating that the catabolic genes are localized in these repeats. The regio...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(89)90442-4
更新日期:1989-06-01 00:00:00