Quantitative procedure for enumeration of bifidobacteria.

abstract：:Soil organic carbon (SOC) plays an important role in regulating global climate change, carbon and nutrient cycling in soils, and soil moisture. Organic matter (OM) additions to soils can affect the rate at which SOC is mineralized by microbes, with potentially important effects on SOC stocks. Understanding how pyrogen...

journal_title：Applied and environmental microbiology

authors： Whitman T,DeCiucies S,Hanley K,Enders A,Woolet J,Lehmann J

更新日期：2021-01-29 00:00:00

abstract：:Bacterial plasmids are fragments of extrachromosomal double-stranded DNA that can contain a variety of genes that are beneficial to the host organism, like those responsible for antimicrobial resistance. The objective of this study was to characterize a collection of 437 Salmonella enterica isolates from different ani...

journal_title：Applied and environmental microbiology

authors： Lindsey RL,Fedorka-Cray PJ,Frye JG,Meinersmann RJ

更新日期：2009-04-01 00:00:00

abstract：:The present investigation showed by means of autoradiography that the cyanobacterium Microcystis wesenbergii did not incorporate [H]thymidine at nanomolar concentrations, whereas its associated heterotrophic bacteria appearing in the gelatinous cover of the cyanobacterium became labeled. Several other tested cyaobacte...

journal_title：Applied and environmental microbiology

authors： Bern L

更新日期：1985-01-01 00:00:00

abstract：:This paper presents a method for determining mutagenic concentrations of chemicals by using an agar diffusion assay. The method is based on the linear relationship between the amount of chemical placed at the center of the dish and the radius of the mutagenic zone. A brief theoretical discussion and experimental data ...

journal_title：Applied and environmental microbiology

authors： Awerbuch TE,Stark AA

更新日期：1979-12-01 00:00:00

abstract：:Unidentified lactic acid bacterium (LAB) isolates which had mainly been detected in spoiled, marinated, modified atmosphere packaged (MAP) broiler meat products during two previous studies, were identified and analyzed for their phenotypic properties and the capability to produce biogenic amines. To establish the taxo...

journal_title：Applied and environmental microbiology

authors： Koort J,Murros A,Coenye T,Eerola S,Vandamme P,Sukura A,Björkroth J

更新日期：2005-08-01 00:00:00

abstract：:A number of Micromonospora strains isolated from the water column, sediment, and cellulose baits placed in freshwater lakes were shown to be able to degrade cellulose in lake water without any addition of nutrients. A selective isolation method was also developed to demonstrate that CFU arose from both spores and hyph...

journal_title：Applied and environmental microbiology

authors： de Menezes AB,Lockhart RJ,Cox MJ,Allison HE,McCarthy AJ

更新日期：2008-11-01 00:00:00

abstract：:Aerobic, glucose-limited chemostat cultures of Saccharomyces cerevisiae CEN.PK113-7D were grown with different nitrogen sources. Cultures grown with phenylalanine, leucine, or methionine as a nitrogen source contained high levels of the corresponding fusel alcohols and organic acids, indicating activity of the Ehrlich...

journal_title：Applied and environmental microbiology

authors： Vuralhan Z,Luttik MA,Tai SL,Boer VM,Morais MA,Schipper D,Almering MJ,Kötter P,Dickinson JR,Daran JM,Pronk JT

更新日期：2005-06-01 00:00:00

abstract：:The composition of the active microbial (bacterial and fungal) soil community in an arable wheat field subjected to different management practices was examined at five times during a 1-year period. Field sections were fertilized either at good agricultural practice (GAP) levels or at reduced levels (0.5x GAP) and were...

journal_title：Applied and environmental microbiology

authors： Girvan MS,Bullimore J,Ball AS,Pretty JN,Osborn AM

更新日期：2004-05-01 00:00:00

abstract：:The transcript abundances of nitrate transporter genes (Nrt2) were proposed as potential markers for nitrogen deficiency in marine diatoms. To correctly quantify diatom Nrt2 mRNA in the East China Sea (ECS), we utilized both mixed-species sequencing and single-cell PCR to expand the sequence database for this region. ...

journal_title：Applied and environmental microbiology

authors： Kang LK,Wang HF,Chang J

更新日期：2011-01-01 00:00:00

abstract：:The respiration percentage of H-labeled glucose by heterotrophic microorganisms in water samples was determined by a method based on equimolar addition of [H]- and [C]glucose to samples. The respiration percentage of [H]glucose exceeded that of [C]glucose by 10% over the assayed range of respiration rates. Respiration...

journal_title：Applied and environmental microbiology

authors： Kuparinen J,Tamminen T

更新日期：1982-04-01 00:00:00

abstract：:A total of 114 gram-negative fecal isolates from domestic pigs in herds with different histories of antimicrobial agent exposure were screened for the presence of plasmid DNA and specific tetracycline resistance determinants. More than 84% of the isolates harbored plasmid DNA, which ranged in size from 2.1 to 186 kb. ...

journal_title：Applied and environmental microbiology

authors： Lee C,Langlois BE,Dawson KA

更新日期：1993-05-01 00:00:00

abstract：:Lantibiotics, such as nisin and subtilin, are lanthionine-containing peptides that exhibit antimicrobial as well as pheromone-like autoinducing activity. Autoinduction is specific for each lantibiotic, and reporter systems for nisin and subtilin autoinduction are available. In this report, we used the previously repor...

journal_title：Applied and environmental microbiology

authors： Fuchs SW,Jaskolla TW,Bochmann S,Kötter P,Wichelhaus T,Karas M,Stein T,Entian KD

更新日期：2011-03-01 00:00:00

abstract：:Cytochrome c(3) from Desulfovibrio vulgaris Miyazaki F was successfully expressed in the facultative aerobe Shewanella oneidensis MR-1 under anaerobic, microaerophilic, and aerobic conditions, with yields of 0.3 to 0.5 mg of cytochrome/g of cells. A derivative of the broad-host-range plasmid pRK415 containing the cyto...

journal_title：Applied and environmental microbiology

authors： Ozawa K,Tsapin AI,Nealson KH,Cusanovich MA,Akutsu H

更新日期：2000-09-01 00:00:00

abstract：:Cells of the gram-negative bacterium Ralstonia sp. strain SBUG 290 grown in the presence of biphenyl are able to cooxidize dibenzofuran which has been 1,2-hydroxylated. Meta cleavage of the 1, 2-dihydroxydibenzofuran between carbon atoms 1 and 9b produced 2-hydroxy-4-(3'-oxo-3'H-benzofuran-2'-yliden)but-2-enoic acid, ...

journal_title：Applied and environmental microbiology

authors： Becher D,Specht M,Hammer E,Francke W,Schauer F

更新日期：2000-10-01 00:00:00

abstract：:The composition of phospholipids from Mycobacterium convolutum R22 was determined after growth at two temperatures (20 and 30 degrees C) with 1-chlorohexadecane as the substrate. Comparisons were made with the phospholipids of cells grown on n-hexadecane. Phosphatidylinositolmannosides and phosphatidylethanolamine (PE...

journal_title：Applied and environmental microbiology

authors： Murphy GL,Perry JJ

更新日期：1987-01-01 00:00:00

abstract：:We investigated long-chain fatty acid (LCFA)-degrading anaerobic microbes by enrichment, isolation, and RNA-based stable isotope probing (SIP). Primary enrichment cultures were made with each of four LCFA substrates (palmitate, stearate, oleate, or linoleate, as the sole energy source) at 55 degrees C or 37 degrees C ...

journal_title：Applied and environmental microbiology

authors： Hatamoto M,Imachi H,Ohashi A,Harada H

更新日期：2007-02-01 00:00:00

abstract：:Three 16S rRNA hybridization probes were developed and tested for genus-specific detection of Bifidobacterium species in the human fecal flora. Variable regions V2, V4, and V8 of the 16S rRNA contained sequences unique to this genus and proved applicable as target sites for oligodeoxynucleotide probes. Determination o...

journal_title：Applied and environmental microbiology

authors： Langendijk PS,Schut F,Jansen GJ,Raangs GC,Kamphuis GR,Wilkinson MH,Welling GW

更新日期：1995-08-01 00:00:00

abstract：:The industrially important organism Corynebacterium glutamicum has been characterized in recent years for its robust ability to assimilate aromatic compounds. In this study, C. glutamicum strain AS 1.542 was investigated for its ability to catabolize phenylacetic acid (PAA). The paa genes were identified; they are org...

journal_title：Applied and environmental microbiology

authors： Chen X,Kohl TA,Rückert C,Rodionov DA,Li LH,Ding JY,Kalinowski J,Liu SJ

更新日期：2012-08-01 00:00:00

abstract：:Different Rhizobium and Bradyrhizobium strains were screened for their ability to produce melanin. Pigment producers (Mel) were found among strains of R. leguminosarum biovars viceae, trifolii, and phaseoli, R. meliloti, and R. fredii; none of 19 Bradyrhizobium strains examined gave a positive response. Melanin produc...

journal_title：Applied and environmental microbiology

authors： Cubo MT,Buendia-Claveria AM,Beringer JE,Ruiz-Sainz JE

更新日期：1988-07-01 00:00:00

abstract：:Few techniques are currently available for quantifying specific prokaryotic taxa in environmental samples. Quantification of specific genotypes has relied mainly on oligonucleotide hybridization to extracted rRNA or intact rRNA in whole cells. However, low abundance and cellular rRNA content limit the application of t...

journal_title：Applied and environmental microbiology

authors： Suzuki MT,Taylor LT,DeLong EF

更新日期：2000-11-01 00:00:00

abstract：:Four pure cultures of denitrifying bacteria, which had previously been isolated on defined alkylbenzenes, were capable of anaerobic growth with crude oil as the only source of organic substrates. Chemical analyses after growth revealed that the known growth substrates toluene, ethylbenzene, and m-xylene were selective...

journal_title：Applied and environmental microbiology

authors： Rabus R,Widdel F

更新日期：1996-04-01 00:00:00

abstract：:We have found a remarkable capacity for the ubiquitous Gram-negative rod bacterium Serratia marcescens to migrate along and kill the mycelia of zygomycete molds. This migration was restricted to zygomycete molds and several basidiomycete species. No migration was seen on any molds of the phylum Ascomycota. S. marcesce...

journal_title：Applied and environmental microbiology

authors： Hover T,Maya T,Ron S,Sandovsky H,Shadkchan Y,Kijner N,Mitiagin Y,Fichtman B,Harel A,Shanks RM,Bruna RE,García-Véscovi E,Osherov N

更新日期：2016-04-18 00:00:00

abstract：:Thirty-three standard mycotoxins were assayed by thin-layer chromatography and by cytotoxicity in HEp-2 and Chang cells. Various levels of detection were found. The cytotoxicity test was significantly more sensitive than thin-layer chromatography for the trichothecenes and should be useful for screening extracts from ...

journal_title：Applied and environmental microbiology

authors： Robb J,Norval M

更新日期：1983-10-01 00:00:00

abstract：:Two different Cd(2+) uptake systems were identified in Lactobacillus plantarum. One is a high-affinity, high-velocity Mn(2+) uptake system which also takes up Cd(2+) and is induced by Mn(2+) starvation. The calculated K(m) and V(max) are 0.26 microM and 3.6 micromol g of dry cell(-1) min(-1), respectively. Unlike Mn(2...

journal_title：Applied and environmental microbiology

authors： Hao Z,Reiske HR,Wilson DB

更新日期：1999-11-01 00:00:00

abstract：:Colonization of apple leaves by the yeastlike fungus Aureobasidium pullulans was followed quantitatively and spatially at a microscale level throughout two growing seasons. Ten field leaves were sampled on 11 dates in 2003 and 15 dates in 2004. Using an A. pullulans-specific fluorescence in situ hybridization probe an...

journal_title：Applied and environmental microbiology

authors： McGrath MJ,Andrews JH

更新日期：2006-09-01 00:00:00

abstract：:The frequency of isolation of three nonhomologous chlorobenzoate catabolic genotypes (clc, cba, and fcb) was determined for 464 isolates from freshwater sediments and groundwater in the vicinity of the Hyde Park industrial landfill site in the Niagara watershed. Samples were collected from both contaminated and noncon...

journal_title：Applied and environmental microbiology

authors： Peel MC,Wyndham RC

更新日期：1999-04-01 00:00:00

abstract：:Escherichia albertii is a recently described species that has been associated with gastroenteritis in humans and with healthy and ill birds. Most recently, it has been identified as the causative agent in a food-borne outbreak in Japan. The distribution and clinical importance of E. albertii are not well studied becau...

journal_title：Applied and environmental microbiology

authors： Lindsey RL,Fedorka-Cray PJ,Abley M,Turpin JB,Meinersmann RJ

更新日期：2015-03-01 00:00:00

abstract：:Of 34 strains of marine bacteria isolated on a general seawater medium, 5 were selected for detailed studies of their population dynamics in the plankton. The isolates were characterized as Aeromonas sp., Chromobacterium cf. lividum, Vibrio sp., and two Pseudomonas spp. Specific antibodies were produced by immunizatio...

journal_title：Applied and environmental microbiology

authors： Dahle AB,Laake M

更新日期：1982-01-01 00:00:00

abstract：:Peat bogs dominated by Sphagnum spp. have relatively high areal rates of dimethyl sulfide (DMS) emission to the atmosphere. DMS was produced in anoxic slurries of Sphagnum peat with a linear time course and with an average rate of 40.4 (range, 22.0 to 68.6) nmol per liter of slurry (middot) day(sup-1) observed in nine...

journal_title：Applied and environmental microbiology

authors： Kiene RP,Hines ME

更新日期：1995-07-01 00:00:00

abstract：:In this study, the genes involved in the initial attack on fluorene by Sphingomonas sp. strain LB126 were investigated. The alpha and beta subunits of a dioxygenase complex (FlnA1-FlnA2), showing 63 and 51% sequence identity, respectively, to the subunits of an angular dioxygenase from the gram-positive dibenzofuran d...

journal_title：Applied and environmental microbiology

authors： Schuler L,Ní Chadhain SM,Jouanneau Y,Meyer C,Zylstra GJ,Hols P,Agathos SN

更新日期：2008-02-01 00:00:00