Extracellular mycosynthesis of gold nanoparticles using Trichoderma hamatum: optimization, characterization and antimicrobial activity.

Abstract:

:Synthesis of gold nanoparticles (AuNPs) has become a needed domain of applied science. Biological method for synthesis of AuNPs by Trichoderma hamatum SU136 aqueous mycelial extract was achieved. The culture filtrate of the fungus was exposed to three different concentrations of gold chloride. The culture filtrate of the fungus was exposed to three different concentrations of gold chloride (0·25, 0·5 and 1·0 mmol l-1 ). In all cases, the gold ions (Au3+ ) were reduced to Au0 , leading to the formation of stable AuNPs. The AuNPs were identified by UV-visible spectrometry, TEM and FT-IR. The presence of a surface plasmon band around 530 nm indicates AuNPs synthesis. Trichoderma hamatum SU136 synthesized 5-30 nm sized; spherical, pentagonal and hexagonal morphologies of AuNPs by TEM. The existence and binding of proteins with nanoparticles was approved by FT-IR study. Parameters optimization showed the smallest size of AuNPs was obtained with (0·5 mmol l-1 gold chloride, pH 7 at 38°C). Interestingly, AuNPs exhibited antimicrobial activity against four pathogenic bacterial strains in the presence of the standard antibiotic, streptomycin. SIGNIFICANCE AND IMPACT OF THE STUDY:Mycosynthesis of AuNPs by Trichoderma hamatum would provide some useful data for oriented biosynthesis of AuNPs. In addition, the applications of mycosynthesized AuNPs were studied against some pathogenic bacteria. Therefore, the gained results detect that these antimicrobial nanoparticles could be explored as hopeful candidates for a variety of biomedical and pharmaceutical applications. This study should provide a further prudence for the fungal-mediated synthesis of AuNPs.

journal_name

Lett Appl Microbiol

authors

Abdel-Kareem MM,Zohri AA

doi

10.1111/lam.13055

subject

Has Abstract

pub_date

2018-11-01 00:00:00

pages

465-475

issue

5

eissn

0266-8254

issn

1472-765X

journal_volume

67

pub_type

杂志文章
  • Analysis of gluconate metabolism for pyruvate production in engineered Escherichia coli based on genome-wide transcriptomes.

    abstract::For pyruvate-producing strains, intracellular reduced nicotinamide adenine dinucleotide (NADH) accumulation is the main reason for the glycolysis inhibition. Comparing with glucose, using sodium gluconate as carbon source brought a decrease in NADH production and an increase in pyruvate production in engineered strain...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12758

    authors: Yang M,Mu T,Zhong W,Olajuyin AM,Xing J

    更新日期:2017-08-01 00:00:00

  • Adhesion capability of first two domains at N terminus of NP_785232 protein and their interaction with a UV-absorbing component from human mucus.

    abstract:AIMS:This work aims to investigate the binding capability of certain domains at N terminus of the protein NP_785232 of Lactobacillus plantarum to Caco-2 cells and to test the usage of affinity chromatography to isolate the human mucus component that interacts with them. METHODS AND RESULTS:Recombinant proteins contain...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2010.02911.x

    authors: Du L,Liu F,Ju X,Huo G

    更新日期:2010-10-01 00:00:00

  • A combined immunomagnetic separation and lateral flow method for a sensitive on-site detection of Bacillus anthracis spores--assessment in water and dairy products.

    abstract:AIM:Combination of immunomagnetic separation (IMS) and lateral flow device (LFD) assays for the development of a sensitive, rapid, on-site methodology that enables concentration and detection of Bacillus anthracis spores in complex samples. METHODS AND RESULTS:The data presents the development of an optimized, 30 min,...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2008.02542.x

    authors: Fisher M,Atiya-Nasagi Y,Simon I,Gordin M,Mechaly A,Yitzhaki S

    更新日期:2009-04-01 00:00:00

  • Biofilm contamination of high-touched surfaces in intensive care units: epidemiology and potential impacts.

    abstract::The aim of this study was to determine the epidemiology (location, microbial load, microbiome, presence/absence of biofilm and pathogens, including ESKAPE-Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter species, and antimicrobial susc...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.13127

    authors: Costa DM,Johani K,Melo DS,Lopes LKO,Lopes Lima LKO,Tipple AFV,Hu H,Vickery K

    更新日期:2019-04-01 00:00:00

  • Treatment with chlorous acid to inhibit spores of Alicyclobacillus acidoterrestris in aqueous suspension and on apples.

    abstract:AIM:To test the efficacy of a chemical (chlorous acid) for reducing the numbers of viable Alicyclobacillus acidoterrestris spores in laboratory media and on apples. METHODS AND RESULTS:Alicyclobacillus acidoterrestris spores in aqueous suspension and on apple surfaces of four different cultivars were treated with 268 ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2010.02874.x

    authors: Lee SY,Ryu SR,Kang DH

    更新日期:2010-08-01 00:00:00

  • Adaptation of Listeria monocytogenes in a simulated cheese medium: effects on virulence using the Galleria mellonella infection model.

    abstract:UNLABELLED:The aim of this study was to evaluate the effect of the acid and salt adaptation in a cheese-based medium on the virulence potential of Listeria monocytogenes strains isolated from cheese and dairy processing environment using the Galleria mellonella model. Four L. monocytogenes strains were exposed to a che...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12064

    authors: Schrama D,Helliwell N,Neto L,Faleiro ML

    更新日期:2013-06-01 00:00:00

  • Optimization of culture conditions for production of antimalarial menisporopsin A by the seed fungus Menisporopsis theobromae BCC 4162.

    abstract:AIMS:The aim of this work was to optimize the production of a novel antimaralial menisporopsin A by the seed fungus Menisporopsis theobromae BCC 4162. METHODS AND RESULTS:Fungal cultures were grown in shake flasks at 25 degrees C in the basal medium with varying carbon and nitrogen sources, aeration rates and initial ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2006.01994.x

    authors: Madla S,Kittakoop P,Wongsa P

    更新日期:2006-11-01 00:00:00

  • Abattoir sources of psychrophilic clostridia causing blown pack spoilage of vacuum-packed chilled meats determined by culture-based and molecular detection procedures.

    abstract:AIMS:To identify the abattoir source(s) of psychrophilic clostridia causing 'blown pack' spoilage of vacuum-packed chilled meats. METHODS AND RESULTS:Molecular procedures were used to detect the presence of specific 16S rRNA gene fragments of blown pack-causing clostridia in samples collected from a commercial abattoi...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2003.01332.x

    authors: Boerema JA,Broda DM,Bell RG

    更新日期:2003-01-01 00:00:00

  • Antibiotic susceptibility of potentially probiotic Bifidobacterium isolates from the human gastrointestinal tract.

    abstract::Sixteen Bifidobacterium isolates from the human gastrointestinal tract were assayed for susceptibility to 44 antibiotics by soft agar overlay disc diffusion on TPY agar. Five isolates (3/7 B. bifidum and 2/3 B. breve) exhibited atypical antibiotic susceptibility profiles. Poor growth in the agar overlay accounted for ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.1998.00342.x

    authors: Charteris WP,Kelly PM,Morelli L,Collins JK

    更新日期:1998-05-01 00:00:00

  • Hydrolytic properties of crude alpha-L-rhamnosidases produced by several wild strains of mesophilic fungi.

    abstract:AIMS:Observation of the dependence of alpha-L-rhamnosidase activity on pH and temperature and the capability to hydrolyse concentrated naringin solutions and hesperidin suspensions of enzyme complexes produced by several fungi. METHODS AND RESULTS:The enzymes were produced by several wild strains of mesophilic fungi g...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2002.01115.x

    authors: Scaroni E,Cuevas C,Carrillo L,Ellenrieder G

    更新日期:2002-01-01 00:00:00

  • Effect of copper hydroxide sprays for citrus canker control on wild-type Escherichia coli.

    abstract:AIMS:  To show that application of copper hydroxide citrus sprays mixed with field source water (possibly contaminated) will not support Escherichia coli on plant surfaces. Environmental stresses of transient phyllosphere bacteria and presence of copper will eradicate these bacteria before harvest. METHODS AND RESULTS...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2011.03179.x

    authors: Narciso JA,Ference CM,Ritenour MA,Widmer WW

    更新日期:2012-02-01 00:00:00

  • Candida keroseneae sp. nov., a novel contaminant of aviation kerosene.

    abstract:AIMS:To characterize and identify a novel contaminant of aviation fuel. METHODS AND RESULTS:Micro-organisms (yeasts and bacteria) were isolated from samples of aviation fuel. A yeast that proved to have been unrecorded previously was isolated from more than one fuel sample. This novel yeast proved to be a new species ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2010.02968.x

    authors: Buddie AG,Bridge PD,Kelley J,Ryan MJ

    更新日期:2011-01-01 00:00:00

  • Glucose metabolism and internal pH of Lactococcus lactis subsp. lactis cells utilizing NMR spectroscopy.

    abstract::The metabolism of glucose was studied in Lactococcus lactis subsp. CNRZ 125 by 13C NMR. The initial rate of glucose utilization was higher for exponential phase cells than for stationary phase cells [150 vs 85 nmol g (dry wt)-1 s -1]. 31P NMR was used to determine changes in glycolytic phosphorylated intermediates (fr...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1995.tb00994.x

    authors: Foucaud C,Herve M,Neumann JM,Hemme D

    更新日期:1995-07-01 00:00:00

  • Sows affect their piglets' faecal microbiota until fattening but not their Salmonella enterica shedding status.

    abstract::Recent studies have shown that Salmonella shedding status affects sows' microbiota during gestation and that these modifications are reflected in the faecal microbiota of their piglets at weaning. The aims of this study were: (a) to evaluate the persistence, up to the fattening period, of the previously measured link ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.13406

    authors: Larivière-Gauthier G,Thibodeau A,Yergeau É,Fravalo P

    更新日期:2021-02-01 00:00:00

  • Faecal contamination of echinoderms: first report of heavy Escherichia coli loading of sea urchins from a natural growing area.

    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

    authors: Bouchoucha M,Piquet JC,Chavanon F,Dufresne C,Le Guyader FS

    更新日期:2016-02-01 00:00:00

  • Co-expression of lipase isozymes for enhanced expression in Pichia pastoris.

    abstract::To enhance the overall expression level of lipase isozymes which catalyse the same reaction in Pichia pastoris through co-expression of isozymes from different sources; several types of co-expression ways were constructed to determine the co-expression efficiencies of lipase isozymes in P. pastoris. The results showed...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12783

    authors: Cai H,Zhang T,Zhao M,Mao J,Cai C,Feng F

    更新日期:2017-10-01 00:00:00

  • Citric acid production by Aspergillus niger on wet corn distillers grains.

    abstract:AIMS:To determine which citric acid-producing strain of Aspergillus niger utilized wet corn distillers grains most effectively to produce citric acid. METHODS AND RESULTS:Citric acid and biomass production by the fungal strains were analysed on the untreated grains or autoclaved grains using an enzyme assay and a grav...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2006.01958.x

    authors: Xie G,West TP

    更新日期:2006-09-01 00:00:00

  • Growth stimulatory effect of Ochrobactrum intermedium and Bacillus cereus on Vigna radiata plants.

    abstract:AIMS:This study assessed the plant growth-promoting ability of the bacterial strains Ochrobactrum intermedium (isolate CrT-1) and Bacillus cereus (isolate S-6). METHODS AND RESULTS:Two chromium resistant bacterial strains isolated from chromium-contaminated wastewater and soils were identified as O. intermedium CrT-1 ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2006.01977.x

    authors: Faisal M,Hasnain S

    更新日期:2006-10-01 00:00:00

  • Evaluation of the BBL Crystal Enteric/Nonfermenter kit for the identification of water-derived environmental Enterobacteriaceae.

    abstract::The Crystal Enteric/Nonfermenter (E/NF) identification kit (Becton Dickinson Microbiology Systems, USA) was evaluated using water-derived bacterial isolates and results compared to those obtained by the API 20E system (BioMérieux, UK). Both the E/NF and 20E systems correctly identified 93% of the Enterobacteriaceae re...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.1995.tb01031.x

    authors: Micklewright IJ,Sartory DP

    更新日期:1995-09-01 00:00:00

  • Antimicrobial and antiadhesive properties of a biosurfactant isolated from Lactobacillus paracasei ssp. paracasei A20.

    abstract:AIMS:The aim of this study was to determine the antimicrobial and antiadhesive properties of a biosurfactant isolated from Lactobacillus paracasei ssp. paracasei A20 against several micro-organisms, including Gram-positive and Gram-negative bacteria, yeasts and filamentous fungi. METHODS AND RESULTS:Antimicrobial and ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2010.02818.x

    authors: Gudiña EJ,Rocha V,Teixeira JA,Rodrigues LR

    更新日期:2010-04-01 00:00:00

  • Influence of Planococcus ficus on Aspergillus section Nigri and ochratoxin A incidence in vineyards from Argentina.

    abstract:AIM:The aim of this work was to evaluate the effect of Planococcus ficus infection in red wine grapes on Aspergillus section Nigri and ochratoxin A (OTA) contamination. METHODS AND RESULTS:During 2006/2007 and 2008/2009 vintages, Merlot, Malbec and Cabernet Sauvignon varieties divided into two categories of grape samp...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.2010.02884.x

    authors: Chiotta ML,Ponsone ML,Torres AM,Combina M,Chulze SN

    更新日期:2010-08-01 00:00:00

  • Structural characterization of Tn916-like element in Streptococcus parauberis serotype II strains isolated from diseased Japanese flounder.

    abstract:AIMS:To screen for the existence and determine the structure of Tn916-like element in Streptococcus parauberis serotype II strains isolated from cultured Japanese flounder in western Japan. METHODS AND RESULTS:In this study, the structure of Tn916-like element and the flanking regions were characterized by polymerase ...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2009.02609.x

    authors: Meng F,Kanai K,Yoshikoshi K

    更新日期:2009-06-01 00:00:00

  • Comparison of fermentative capacities of industrial baking and wild-type yeasts of the species Saccharomyces cerevisiae in different sugar media.

    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 t...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.2001.00894.x

    authors: Bell PJ,Higgins VJ,Attfield PV

    更新日期:2001-04-01 00:00:00

  • Public transport as a reservoir of methicillin-resistant staphylococci.

    abstract:AIMS:The aim of this study was to explore the occurrence of methicillin-resistant staphylococci in a large urban public transport system. METHODS AND RESULTS:Samples were taken from hand rails, which passengers hold onto when they are standing. In total, 1400 swabs taken from 55 vehicles (trolleybuses, trams and buses...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.2008.02436.x

    authors: Stepanović S,Cirković I,Djukić S,Vuković D,Svabić-Vlahović M

    更新日期:2008-10-01 00:00:00

  • Phenotypic and genotypic diversity of Genista saharae microsymbionts from the infra-arid region of Tunisia.

    abstract:AIMS:Genista saharae, indigenous of Sahara, is a spontaneous shrub that plays an important ecological role for the preservation and fertility of poor and eroded soils. This legume has not been examined for its root nodule bacteria. The taxonomic diversity of bacteria from root nodules of G. saharae growing in the infra...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2007.02233.x

    authors: Mahdhi M,Nzoué A,Gueye F,Merabet C,de Lajudie P,Mars M

    更新日期:2007-12-01 00:00:00

  • Improved genetic transformation methods for the model alkaliphile Bacillus halodurans C-125.

    abstract:AIMS:Bacillus halodurans C-125 is a Gram-positive bacterium that was the first alkaliphilic species to have its genome completely sequenced. Despite its many years as a model for alkaliphily and source of industrially important enzymes, genetic manipulation of B. halodurans C-125 remains difficult, and therefore, we so...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2011.03017.x

    authors: Wallace JG,Breaker RR

    更新日期:2011-04-01 00:00:00

  • Enumeration of Carnobacterium divergens V41, Carnobacterium piscicola V1 and Lactobacillus brevis LB62 by in situ hybridization-flow cytometry.

    abstract::The specific detection and enumeration of Lactobacillus brevis LB62, Carnobacterium divergens V14 and Carnobacterium piscicola VI were studied by in situ hybridization-flow cytometry. The method was performed on the exponential growth phase with three probes targeting 16S rRNA labelled with fluorescein isothicyanate (...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1046/j.1472-765x.1998.t01-3-00449.x

    authors: Connil N,Dousset X,Onno B,Pilet MF,Breuil MF,Montel MC

    更新日期:1998-11-01 00:00:00

  • A cryopreservation procedure for the rumen protozoon Entodinium caudatum: estimation of its viability by fluorescence microscopy.

    abstract:AIMS:To study the viability of a culture of the rumen protozoon Entodinium caudatum after a cryopreservation procedure by a fluorescence microscopy staining method. METHODS AND RESULTS:Fluorescence method is based on the different colour of cells depending on their membrane integrity. When the temperature effect was s...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765x.2003.01464.x

    authors: de la Fuente G,Cebrián JA,Fondevila M

    更新日期:2004-01-01 00:00:00

  • Mycobiota and mycotoxins in malted barley and brewer's spent grain from Argentinean breweries.

    abstract:AIMS:To evaluate mycobiota and aflatoxins B(1) (AFB(1)), B(2) (AFB(2)), G(1) (AFG(1)), G(2) (AFG(2)) and fumonisin B(1) (FB(1)) contamination in different malted barley types and brands and brewer's grain collected from a major Argentinean brewery. METHODS AND RESULTS:Total fungal counts were performed using the plate...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/j.1472-765X.2011.03157.x

    authors: Gonzalez Pereyra ML,Rosa CA,Dalcero AM,Cavaglieri LR

    更新日期:2011-12-01 00:00:00

  • Cellulose acetate-based composites with antimicrobial properties from embedded molybdenum trioxide particles.

    abstract::The objective of this research was to develop novel cellulose acetate (biopolymer) composite materials with an excellent antimicrobial activity by embedding molybdenum trioxide particles with unique high specific surface area. High surface area molybdenum trioxide particles were prepared from freshly precipitated moly...

    journal_title:Letters in applied microbiology

    pub_type: 杂志文章

    doi:10.1111/lam.12670

    authors: Shafaei S,Dörrstein J,Guggenbichler JP,Zollfrank C

    更新日期:2017-01-01 00:00:00