Abstract:
AIMS:To compare the fermentative capacity of wild and domesticated isolates of the genus Saccharomyces. METHODS AND RESULTS:The fermentative capacity of yeasts from a variety of wild and domesticated sources was tested in synthetic dough media that mimic major bread dough types. Domesticated yeast strains were found to have better maltose-utilizing capacity than wild yeast strains. The capacity to ferment sugars under high osmotic stress was randomly distributed amongst wild and baking strains of Saccharomyces. CONCLUSION:The domestication of bakers' yeast has enhanced the ability of yeasts to ferment maltose, without a similar impact on the fermentative capacity under high osmotic conditions. SIGNIFICANCE AND IMPACT OF THE STUDY:This study, combined with molecular studies of both wild and domesticated yeast, showed that domestication of bakers' yeast has resulted in improved maltose utilization, apparently via the duplication and mutation of the MAL genes.
journal_name
Lett Appl Microbioljournal_title
Letters in applied microbiologyauthors
Bell PJ,Higgins VJ,Attfield PVdoi
10.1046/j.1472-765x.2001.00894.xsubject
Has Abstractpub_date
2001-04-01 00:00:00pages
224-9issue
4eissn
0266-8254issn
1472-765Xpii
lam894journal_volume
32pub_type
杂志文章abstract:UNLABELLED:Cysteine phytase is the main phytate-degrading enzyme of ruminant animals. To explore the genetic diversity and dynamic expression profile of cysteine phytase in sheep rumen during a feeding cycle, four transcript (0, 4, 9 and 16 h after feeding) and one DNA (9 h after feeding) clone libraries were construct...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12318
更新日期:2014-12-01 00:00:00
abstract::The effect of surfactant type and concentration on a bland soap formulation's ability to remove bacteria from hands remains largely unstudied. Several combinations of surfactants and water were combined to test bacterial removal efficacy using a hand-washing device (two pieces of pig skin and a mechanical motor) to si...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12777
更新日期:2017-10-01 00:00:00
abstract::The physical effects of high-intensity pulsed electric fields (PEF) on the inactivation of diarrhoeagenic Bacillus cereus cells suspended in 0.1% peptone water were examined by transmission electron microscopy (TEM). The levels of PEF-induced microbial cell death were determined by enumeration on tryptone soy yeast ex...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.2000.00772.x
更新日期:2000-08-01 00:00:00
abstract:AIMS:To develop a PCR-based method for quantitative detection of Fusarium asiaticum (Fa) and Fusarium graminearum (Fg) in wheat seeds. METHODS AND RESULTS:Based on the sequences of the cyp51A gene, two primer pairs FaF + FaR and FgF + FgR were developed for the species-specific detection of Fa and Fg, respectively. To...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2009.02595.x
更新日期:2009-06-01 00:00:00
abstract::During investigation of a gastroenteritis outbreak in a chronic care institution, Norwalk virus was found in stool specimens from two individuals and bacterial isolates presumptively identified as Bacillus cereus were isolated from four individuals (including one with Norwalk virus) and spice. Phage typing confirmed a...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1995.tb01017.x
更新日期:1995-08-01 00:00:00
abstract::The neurotoxins produced by Clostridium botulinum are amongst the most potent known to man. Toxin production is detected by a mouse bioassay, which requires several days for a result and is not acceptable for routine use unless there is a high level of suspicion. The Rapid ID32 A kit produced by bioMerieux gives an id...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.1998.00283.x
更新日期:1998-01-01 00:00:00
abstract:AIMS: We evaluated risks associated with diaper changing in Finnish kindergartens where children were using either modern disposable paper or reusable cloth diapers. METHODS AND RESULTS: We determined enteric micro-organisms and ammonia in diaper-changing rooms in four kindergartens in autumn and winter in the ambie...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2012.03230.x
更新日期:2012-05-01 00:00:00
abstract::A simple artificial urine medium (AUM) has been developed which provides conditions similar to that found in human urine. AUM solidified with agar enabled the recovery of a wide range of urease-positive and -negative urinary pathogens. Liquid AUM supported growth at concentrations of up to 10(8) cfu ml-1, as found in ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.1997.00378.x
更新日期:1997-03-01 00:00:00
abstract::Reagent-derived contamination can compromise the integrity of microbiome data, particularly in low microbial biomass samples. This contamination has recently been attributed to the 'kitome' (contamination introduced by the DNA extraction kit), prior to which attention was mostly paid to potential contamination introdu...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.13091
更新日期:2019-01-01 00:00:00
abstract:UNLABELLED:Catfishes of the genus Panaque are known for their ability to feed on wood and hence to process cellulose fibres in their digestive systems. The paper industry uses cellulose fibres and thus has an interest in exploiting this property biomimetically: it could be employed as a pretreatment to lessen the energ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12061
更新日期:2013-06-01 00:00:00
abstract:AIMS:To investigate the diversity and dissemination of tetracycline resistance genes in isolates from estuarine waters. METHODS AND RESULTS:Forty-two out of 164 multi-resistant isolates previously obtained were resistant or less-susceptible to tetracycline, as evaluated by the disc diffusion method. Minimal inhibitory...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2008.02452.x
更新日期:2008-12-01 00:00:00
abstract:AIMS:This paper attempts to develop a kinetic model to describe the growth of aerobic granules developed under different operation conditions. METHODS AND RESULTS:A series of experiments were conducted by using four-column sequencing batch reactors to study the formation of aerobic granules under different conditions,...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.2003.01452.x
更新日期:2004-01-01 00:00:00
abstract::Parabens have been widely used as antimicrobial preservatives in cosmetics, pharmaceuticals, foods and beverages. Commonly, methyl-, ethyl-, propyl- and butylparaben are used independently or in combination to maintain the quality of industrial products, and they are considered to have low toxicity. However, recent ev...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.13230
更新日期:2019-12-01 00:00:00
abstract:AIMS:This study was designed to evaluate the prevalence of Clostridium difficile contamination of retail chicken. METHODS AND RESULTS:Chicken legs, thighs and wings were purchased using a standardized method from retail outlets across Ontario, Canada. Selective culture was used for qualitative and quantitative detecti...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2010.02802.x
更新日期:2010-04-01 00:00:00
abstract::Ergosterol biosynthesis in Saccharomyces cerevisiae is complex and the underlying mechanism of regulation remains unclear. To clarify the influence of transcriptional regulation on the ergosterol content, transcription factor Ecm22 was overexpressed in S. cerevisiae. Results showed that the overexpression of ECM22 led...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.13061
更新日期:2018-11-01 00:00:00
abstract:AIMS:To measure the microbial removal capacity of a small-scale hydroponics wastewater treatment plant. METHODS AND RESULTS:Paired samples were taken from untreated, partly-treated and treated wastewater and analysed for faecal microbial indicators, i.e. coliforms, Escherichia coli, enterococci, Clostridium perfringen...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2005.01689.x
更新日期:2005-01-01 00:00:00
abstract:AIMS:The objective of this study was to identify compounds responsible for medicinal off-flavours produced by different species and strains of Alicyclobacillus in orange juice using a combination of chromatographic-coupled olfactometric techniques and gas chromatography-mass spectrometry (GC-MS). METHODS AND RESULTS:E...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2004.01636.x
更新日期:2005-01-01 00:00:00
abstract:AIMS:To assess the effectiveness of sequential treatments of radish seeds with aqueous chlorine dioxide (ClO(2) ) and dry heat in reducing the number of Escherichia coli O157:H7. METHODS AND RESULTS:Radish seeds containing E. coli O157:H7 at 5.5 log CFU g(-1) were treated with 500 μg ml(-1) ClO(2) for 5 min and subseq...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2011.03125.x
更新日期:2011-10-01 00:00:00
abstract:AIMS:To evaluate the effect of oregano essential oil on Listeria monocytogenes cytoplasmic membrane. METHODS AND RESULTS:Nitroxide free-radical Electron Paramagnetic Resonance was applied on L. monocytogenes after 30 min exposure to oregano essential oil concentrations ranging from 0 to 1.25%. The impact of essential ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2010.02877.x
更新日期:2010-08-01 00:00:00
abstract::A monoclonal antibody (mAb) has been produced to aflatoxin B1 (AF B1) after successful immunization of mice and fusion of sensitized spleen cells with myeloma cancer cells. The mice were immunized with AF B1-oxime-protein conjugate. Positive mAbs were screened using an indirect ELISA specific for AF B1. The selected m...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1990.tb00106.x
更新日期:1990-04-01 00:00:00
abstract::While patients with cystic fibrosis (CF) have had dramatic improvement in their survival rates, this has been accompanied by the emergence of more virulent pathogens such as Pseudomonas aeruginosa and Burkholderia cepacia complex organisms. In addition, there has been emergence of organisms of increasing clinical sign...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2007.02130.x
更新日期:2007-05-01 00:00:00
abstract:AIMS:To examine factors affecting faecal shedding of the foodborne pathogens Escherichia coli O157:H7 and Salmonella in dairy cattle and evaluate antimicrobial susceptibility of these isolates. METHODS:Faecal samples were obtained in replicate from lactating (LAC; n = 60) and non-lactating (NLAC; n = 60) Holstein catt...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2003.01417.x
更新日期:2003-01-01 00:00:00
abstract:AIMS: Lesions of DNA are removed by nucleotide excision repair (NER) process in the living systems. NER process-related host factors are believed to aid recovery steps during viral integration. Here, we report identification and characterization of a DNA repair molecule Rad23 from kuruma shrimp Marsupenaeus japonicus. ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2011.03073.x
更新日期:2011-07-01 00:00:00
abstract:AIMS:To test the efficacy of Lactobacillus johnsonii FI9785 in reducing the colonization and shedding of Salmonella enterica serotype Enteritidis, Escherichia coli O78:K80 and Clostridium perfringens in poultry. METHODS AND RESULTS:Specific pathogen-free chicks (1 day old) were dosed with a single oral inoculum of 1x1...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.2004.01474.x
更新日期:2004-01-01 00:00:00
abstract::In order to select a suitable indicator for monitoring the pathogen regrowth potential of composted biosolids, the growth kinetics of selected bacteria were investigated. Growth parameters of six serovars of Salmonella and three strains of Escherichia coli in sterilized compost were compared. Seeded Salmonella and E. ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.1999.00626.x
更新日期:1999-11-01 00:00:00
abstract::Bulk tank milk from 160 producers was tested for Listeria monocytogenes at three monthly intervals over 1 year. Twenty-five producers were positive, most on a single occasion, only seven were positive on three or more of the four samplings. Listeria monocytogenes numbers were low, usually < 1 ml-1, the highest was 35 ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1995.tb00407.x
更新日期:1995-01-01 00:00:00
abstract:AIMS:To optimize the production of linolenic acid by disrupted mycelia of Mortierella isabellina. METHODS AND RESULTS:Effects of incubation conditions such as incubation time, pH of reaction mixture, concentration of Mg2+ or malate and incubation temperature on production of linolenic acid were studied. The production...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2003.01291.x
更新日期:2003-01-01 00:00:00
abstract::Quillaja saponin (QS) was incubated at 39 degrees C in an in vitro medium containing rumen liquor from a cow fed a roughage diet. No degradation of QS was observed up to 6 h of fermentation. Incubation for 9, 12 and 24 h decreased the content of QS by 16%, 45% and 100%. The content of QS did not decrease when incubate...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.1997.00207.x
更新日期:1997-10-01 00:00:00
abstract::Fattening pigs are often infected with campylobacter. To eliminate campylobacter from the pig population, a top-down approach, involving the breeding and reproduction farms, seems appropriate. In order to investigate the effectiveness of a top-down approach, sows' faeces from the following farms were analysed for the ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2000.00750.x
更新日期:2000-06-01 00:00:00
abstract::The effect of liquid mechanical vibration on the adhesion of Saccharomyces cerevisiae cells to the internal glass surface of a pipette was studied using a 25 Hz vibration source. The maximum vibration amplitude was 1.06 mm (peak to peak) along the pipette direction. Relative movements between the pipette and yeast sus...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1996.tb00022.x
更新日期:1996-07-01 00:00:00