Abstract:
AIMS:The objective was to demonstrate the size of silver particles produced by the filamentous fungus Phoma sp.3.2883 via adsorption and accumulation, and to confirm that this silver was in a reduced state. METHODS AND RESULTS:Mycelium was freeze-dried and then shake-cultured in a silver nitrate solution. It was found that up to 13.4 mg of silver was produced per gram of dry mycelium via atomic absorption spectrometer (AAS) analysis. The silver particles adsorbed on the mycelium were observed and measured under transmission electron microscope and their estimated size was 71.06 +/- 3.46 nm. Further examination of the particles via X-ray photoelectron spectroscope confirmed that the adsorbed silver particle had been reduced. CONCLUSION:The frozen mycelium of Phoma sp3.2883 has the potential for use in silver nanoparticle production. SIGNIFICANCE AND IMPACT OF THE STUDY:Silver nanoparticles could be used in the oil industry as an important catalyst and in the field of human medicine as a bactericide. The fungus Phoma sp3.2883 is a potential biosorbent that could be used for the production of these silver nanoparticles, and may also be useful in waste detoxification and in silver recovery programmes.
journal_name
Lett Appl Microbioljournal_title
Letters in applied microbiologyauthors
Chen JC,Lin ZH,Ma XXdoi
10.1046/j.1472-765x.2003.01348.xsubject
Has Abstractpub_date
2003-01-01 00:00:00pages
105-8issue
2eissn
0266-8254issn
1472-765Xpii
1348journal_volume
37pub_type
杂志文章abstract::Patterns of long-chain faecal fatty acids were studied by gas-liquid chromatography in 55 newborn infants in a neonatal intensive care unit. Decreased fractions of fatty acid C16:1 and increased fractions of C16:0 and C17:0 were associated with the occurrence of abdominal distension. Decreased fractions of C16:1 and C...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.1997.00341.x
更新日期:1997-02-01 00:00:00
abstract:AIMS:2-Keto-4-methylthiobutyric acid (KMBA) is an established intermediate in microbial biosynthesis of ethylene from methionine. This study demonstrates the kinetics and effects of trace elements and electron complexes on substrate (KMBA)-derived C2H4 biosynthesis in soil. METHODS AND RESULTS:We have previously repor...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2004.01590.x
更新日期:2004-01-01 00:00:00
abstract::The emergence of an increasing number of antibiotic resistant human clinical bacteria has been a great cause of concern for the last decades. As an example, Staphylococcus aureus isolates in the hospital environment are becoming more and more resistant to antibiotics including vancomycin which is considered as a last ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-765X.2008.02490.x
更新日期:2009-01-01 00:00:00
abstract:AIM:To study the effect of glucose concentrations on the growth by Brettanomyces bruxellensis yeast strain in batch experiments and develop a mathematical model for kinetic behaviour analysis of yeast growing in batch culture. METHODS AND RESULTS:A Matlab algorithm was developed for the estimation of model parameters....
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2011.03081.x
更新日期:2011-08-01 00:00:00
abstract::Five phage types have been identified in 38 strains of Salmonella enteritidis isolated in Turkey in the 20-month period June 1992-January 1994. Strains belonging to phage type 4 predominated. Within phage type 4, plasmid profile typing has proved a useful method of strain discrimination and has confirmed the identity ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1994.tb00960.x
更新日期:1994-10-01 00:00:00
abstract::Candida-associated denture stomatitis presents as erythema of the palatal mucosa and is caused by biofilms containing the fungus Candida albicans that co-reside with oral bacteria on the denture-fitting surface. This study aimed to assess the effect of several frequently encountered oral bacteria on the expression of ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.13145
更新日期:2019-04-01 00:00:00
abstract:AIMS:To determine the effect of interacting conditions of water activity (aw, 0.99-0.85), temperature (15, 25 degrees C) and time (40 days) on growth and production of the mycotoxins deoxynivalenol (DON) and nivalenol (NIV) by Fusarium culmorum on a wheat-based agar medium. METHODS AND RESULTS:Fusarium culmorum grew o...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2003.01358.x
更新日期:2003-01-01 00:00:00
abstract::This study evaluated the performance of CPS ID2 (bioMérieux) compared to that of conventionally used selective agar for the identification of bacteria responsible for urinary tract infections. This medium detects bacterial enzymes using chromogenic substrates. Two hundred and nineteen samples of urine were tested in o...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1995.tb00450.x
更新日期:1995-05-01 00:00:00
abstract::Limited data are available on the prevalence of livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) in the UK. We tested 124 raw meat samples for MRSA including pork (n = 63), chicken (n = 50) and turkey (n = 11) collected from retail outlets in North West England between March and July 2015. MR...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12709
更新日期:2017-03-01 00:00:00
abstract:UNLABELLED:Bioconversion of biomass, particularly crop wastes, into biofuels is being developed as an alternative approach in meeting the high energy demand. In this study, a thermophilic bacterial strain BY-3 that exhibits cellulolytic potential was isolated from faecal samples of Tibetan pigs; this strain was identif...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12276
更新日期:2014-09-01 00:00:00
abstract:AIMS:To develop a specific, fast and simple molecular method useful to detect the entomopathogenic bacterium Pseudomonas entomophila. METHODS AND RESULTS:The use of bioinformatics tools allowed the identification of unique genes present in P. entomophila genome. Using such genes, we designed primers aiming to detect s...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2009.02785.x
更新日期:2010-03-01 00:00:00
abstract:AIMS:To develop and evaluate a real-time PCR assay incorporating an internal amplification control (IAC) suitable for the screening of Shiga toxin (Stx)-producing Escherichia coli (STEC) in foods. METHODS AND RESULTS:A competitive IAC was constructed and included in an stx-specific real-time PCR assay. Coupled to 18-h...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2009.02561.x
更新日期:2009-05-01 00:00:00
abstract::Phorate [O,O-diethyl-S-(ethylthio)methyl phosphoradiothioate] degrading bacteria were isolated from agricultural soil and characterized based on their morphological and biochemical characteristics. The selected isolates PS-1, PS-2 and PS-3 were presumptively identified as Rhizobium, Pseudomonas and Proteous species, r...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2003.01329.x
更新日期:2003-01-01 00:00:00
abstract::Colicin V is a small, proteinaceous bacterial toxin, produced by many strains of Escherichia coli and other members of the Enterobacteriaceae, that fits the definition of class II bacteriocins of Gram-positive bacteria. Export of colicin V is dependent on specific ABC (ATP-binding cassette) secretion proteins which re...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.1999.00571.x
更新日期:1999-07-01 00:00:00
abstract:AIM: This report describes the use of a six-gene multi-locus sequence analysis (MLSA) to correctly identify Vibrio strains of the Harveyi clade. METHODS AND RESULTS: Vibrio isolates were characterized using a six housekeeping gene MLSA. The study provided evidence supporting: (i) a substantial number of reference st...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2011.03183.x
更新日期:2012-02-01 00:00:00
abstract:UNLABELLED:Isolation of local strains is mandatory for the success of control programs. However, clinical samples are typically contaminated by other bacteria, which impair leptospires growth. The purpose of this study was to evaluate the use of a previously reported EMJH-STAFF media in the recovery of pathogenic lepto...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12501
更新日期:2015-12-01 00:00:00
abstract::Enterohaemorrhagic Escherichia coli (EHEC) agar was evaluated for its ability to recover one isolate of each of three serotypes (O157:H7, O26 and O113:H21) of shiga toxin-producing E. coli (STEC) from raw mince, pasteurized milk and salami after enrichment. The method detected around one colony-forming unit (cfu) in 2...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2000.00676.x
更新日期:2000-02-01 00:00:00
abstract:AIMS:The development of a simple, rapid and sensitive method for the screening of chitinase inhibitors using Ostazin Brilliant Red labelled chitin as a substrate for chitinase assay. METHODS AND RESULTS:The colloidal substrate prepared from the Ostazin Brilliant Red labelled chitin was used in the estimation of chitin...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2007.02117.x
更新日期:2007-06-01 00:00:00
abstract::While the beta-glucuronidase activity of intact cells of Clostridium perfringens was higher in 0.95% sodium chloride (NaCl) than that in 0, 0.1 or 0.5%, that of Escherichia coli was higher in 0.1% NaCl than that in 0, 0.5 or 0.95% NaCl in 0.1 mol l-1 KH2PO4. However, the enzyme activity of both species of intact cells...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.2000.00812.x
更新日期:2000-09-01 00:00:00
abstract::Erwinia amylovora bacteria cause fire blight disease, which affects apple and pear production worldwide. The Erw. amylovora pyrC gene encodes a predicted dihydroorotase enzyme involved in pyrimidine biosynthesis. Here, we discovered that the Erw. amylovora pyrC244::Tn5 mutant was a uracil auxotroph. Unexpectedly, the ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12417
更新日期:2015-06-01 00:00:00
abstract:AIMS:The study aim was to determine the presence of total and faecal coliforms on kitchen surfaces, in tap water and on the hands of caregivers in households on both sides of the US-Mexico border. METHODS AND RESULTS:Samples were collected in 135 randomly selected households in Ciudad Juarez, Mexico, and El Paso, Texa...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2008.02378.x
更新日期:2008-06-01 00:00:00
abstract:AIM:To compare the incidence of antimicrobial resistance among Salmonella serotypes isolated in a pig slaughterhouse in Zaragoza (Spain) during 1993 and 2001. METHODS AND RESULTS:A total of 168 isolates representing 10 serotypes were examined by disc diffusion method using 17 antibiotics. Data showed that the majority...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2005.01710.x
更新日期:2005-01-01 00:00:00
abstract:UNLABELLED:This study reports the development of a loop-mediated isothermal amplification (LAMP) reaction for the detection of Pythium myriotylum. The primer set targeting the ITS sequence of P. myriotylum worked most efficiently at 60°C and allowed the detection of P. myriotylum DNA within 30 min by fluorescence monit...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12244
更新日期:2014-07-01 00:00:00
abstract:AIM:To determine whether assessing the penetration of solutions with different concentrations of ethanol (alcohol percentage test: APT) on fungal surfaces is effective in characterization of hydrophobicity on fungal surfaces. METHODS AND RESULTS:APT and contact angle (CA) measurements were conducted on nine hydrophobi...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2009.02791.x
更新日期:2010-03-01 00:00:00
abstract:AIMS:To investigate the influence of the growth phase, growth temperature, storage time, pH and aw of the treatment medium on the resistance of Listeria monocytogenes to pulsed electric fields (PEF). METHODS AND RESULTS:Square wave pulses of 2 micros at a frequency of 1 Hz and 25 and 28 kV cm(-1) were used. Cells were...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2002.01221.x
更新日期:2002-01-01 00:00:00
abstract:AIMS:The objective of the present study was to determine the optimal culture conditions for exo-biopolymer production by Cordyceps militaris in shake flask culture. METHODS AND RESULTS:The optimal temperature and initial pH for both mycelial growth and exo-biopolymer production by Cordyceps militaris in shake flask cu...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2001.00950.x
更新日期:2001-07-01 00:00:00
abstract:AIMS: The objective of this study was to inactivate Bacillus cereus spores in sikhye using a modified tyndallization process involving injection with carbon dioxide (CO₂). METHODS AND RESULTS:Heat tolerance of B. cereus spores in tryptic soy broth and sikhye was evaluated. The D(95°C) values of the B. cereus spores we...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2012.03278.x
更新日期:2012-09-01 00:00:00
abstract:UNLABELLED:Although little evidence existed to support that view, European countries and in particular France, have regarded echinoderms, including sea urchins, as low risk in terms of feacal contamination. It is hypothesized that the sea urchins mode of feeding, which is based on grazing and differs from bivalve mollu...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12524
更新日期:2016-02-01 00:00:00
abstract:UNLABELLED:Most plant species are colonized by endophytic bacteria. Despite their importance for plant health and growth, the response of these bacteria to grassland management regimes is still not understood. Hence, we investigated the bacterial community structure in three agricultural important grass species Dactyli...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12551
更新日期:2016-04-01 00:00:00
abstract::The hydrogen peroxide (H2O2) stress response in Enterococcus faecalis ATCC19433 was investigated. A 2.4 mmol l-1 H2O2 pretreatment conferred protection against a lethal concentration (45 mmol l-1) of this agent. The relatively high concentrations of H2O2 used for adaptation and challenge treatments in Ent. faecalis em...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.1998.00325.x
更新日期:1998-04-01 00:00:00