Genotypic and phenotypic diversity within species of purple nonsulfur bacteria isolated from aquatic sediments.

abstract：:Batch cultures of a lithotrophic Fe(II)-oxidizing bacterium, strain BrT, isolated from the rhizosphere of a wetland plant, were grown in bioreactors and used to determine the significance of microbial Fe(II) oxidation at circumneutral pH and to identify abiotic variables that affect the partitioning between microbial ...

journal_title：Applied and environmental microbiology

authors： Neubauer SC,Emerson D,Megonigal JP

更新日期：2002-08-01 00:00:00

abstract：:Bacillus cereus endospores germinate in response to particular nutrients. Spores are able to sense these nutrients in the environment by receptors encoded by the gerA family of operons. Analysis of the Bacillus cereus ATCC 14579 genome revealed seven gerA family homologues. Using a transposon Tn917-based insertional m...

journal_title：Applied and environmental microbiology

authors： Hornstra LM,de Vries YP,de Vos WM,Abee T,Wells-Bennik MH

更新日期：2005-02-01 00:00:00

abstract：:The effects of organic and inorganic nutrient additions on the specific growth rates of bacterioplankton in oligotrophic lake water cultures were investigated. Lake water was first passed through 0.8-mum-pore-size filters (prescreening) to remove bacterivores and to minimize confounding effects of algae. Specific grow...

journal_title：Applied and environmental microbiology

authors： Coveney MF,Wetzel RG

更新日期：1992-01-01 00:00:00

abstract：:Fecal coliforms and enterococci are indicator organisms used worldwide to monitor water quality. These bacteria are used in microbial source tracking (MST) studies, which attempt to assess the contribution of various host species to fecal pollution in water. Ideally, all strains of a given indicator organism (IO) woul...

journal_title：Applied and environmental microbiology

authors： Anderson KL,Whitlock JE,Harwood VJ

更新日期：2005-06-01 00:00:00

abstract：:A small spirillum, designated 5175, was isolated from an anaerobic enrichment culture for Desulfuromonas in which the major medium constituents were acetate and elemental sulfur. The organisms grew only under anaerobic or microaerophilic conditions. Elemental sulfur was formed anaerobically in a malate-sulfide medium,...

journal_title：Applied and environmental microbiology

authors： Wolfe RS,Penning N

更新日期：1977-02-01 00:00:00

abstract：:Five different bacterial extracellular polymer extraction methods and a combination of two of these methods were compared on cultures of activated sludge, synthetic activated sludge, and Klebsiella aerogenes. High-speed centrifugation was the most effective extraction method for the K. aerogenes culture, based on the ...

journal_title：Applied and environmental microbiology

authors： Brown MJ,Lester JN

更新日期：1980-08-01 00:00:00

abstract：:The biosynthesis of the major carotenoid spirilloxanthin by the purple nonsulfur bacterium Rhodospirillum rubrum is thought to occur via a linear pathway proceeding through phytoene and, later, lycopene as intermediates. This assumption is based solely on early chemical evidence (B. H. Davies, Biochem. J. 116:93-99, 1...

journal_title：Applied and environmental microbiology

authors： Wang GS,Grammel H,Abou-Aisha K,Sägesser R,Ghosh R

更新日期：2012-10-01 00:00:00

abstract：:In this study, we compared different methods-including transmission electron microscopy-and various nucleic acid labeling methods in which we used the fluorochromes 4',6'-diamidino-2-phenylindole (DAPI), 4-[3-methyl-2,3-dihydro-(benzo-1, 3-oxazole)-2-methylmethyledene]-1-(3'-trimethyl ammoniumpropyl)-quinilinium diioi...

journal_title：Applied and environmental microbiology

authors： Bettarel Y,Sime-Ngando T,Amblard C,Laveran H

更新日期：2000-06-01 00:00:00

abstract：:Mercury is a redox-active heavy metal that reacts with active thiols and depletes cellular antioxidants. Active resistance to the mercuric ion is a widely distributed trait among bacteria and results from the action of mercuric reductase (MerA). Protein phylogenetic analysis of MerA in bacteria indicated the occurrenc...

journal_title：Applied and environmental microbiology

authors： Simbahan J,Kurth E,Schelert J,Dillman A,Moriyama E,Jovanovich S,Blum P

更新日期：2005-12-01 00:00:00

abstract：:Disruption of the aflatoxin biosynthesis cluster gene aflY (hypA) gave Aspergillus parasiticus transformants that accumulated versicolorin A. This gene is predicted to encode the Baeyer-Villiger oxidase necessary for formation of the xanthone ring of the aflatoxin precursor demethylsterigmatocystin. ...

journal_title：Applied and environmental microbiology

authors： Ehrlich KC,Montalbano B,Boué SM,Bhatnagar D

更新日期：2005-12-01 00:00:00

abstract：:A novel technique, combining labelling and stereological methods, for the determination of spatial distribution of two microorganisms in a biofilm is presented. Cells of Nitrosomonas europaea (ATCC 19718) and Nitrobacter agilis (ATCC 14123) were homogeneously distributed in a kappa-carrageenan gel during immobilizatio...

journal_title：Applied and environmental microbiology

authors： Hunik JH,van den Hoogen MP,de Boer W,Smit M,Tramper J

更新日期：1993-06-01 00:00:00

abstract：:Overgrowth by spreading molds such as Rhizopus and Mucor species is a problem with fungal enumeration media used for foods. Thirty-one antifungal compounds were surveyed for their ability to selectively inhibit such fungi while allowing growth of mycotoxigenic molds and other species of significance in food spoilage. ...

journal_title：Applied and environmental microbiology

authors： King AD Jr,Hocking AD,Pitt JI

更新日期：1979-05-01 00:00:00

abstract：:The rapid degradation of marine infrastructure at the low tide level due to accelerated low-water corrosion (ALWC) is a problem encountered worldwide. Despite this, there is limited understanding of the microbial communities involved in this process. We obtained samples of the orange-colored tubercles commonly associa...

journal_title：Applied and environmental microbiology

authors： Phan HC,Wade SA,Blackall LL

更新日期：2020-06-17 00:00:00

abstract：:Resistance to vancomycin permitted detection, in a culture of Streptococcus cremoris 290PC, of a contaminant gram-positive coccus. Morphological and physiological characteristics indicated that this bacterium was a strain of Leuconostoc sp., designated PO184. This strain contained four plasmid species, which were dist...

journal_title：Applied and environmental microbiology

authors： Orberg PK,Sandine WE

更新日期：1984-12-01 00:00:00

abstract：:Gaeumannomyces graminis, the causative agent of take-all disease of wheat, barley, and oats, was detected in infected wheat seedlings by using the polymerase chain reaction to amplify Gaeumannomyces-specific DNA fragments. Nested primers and two rounds of amplification were used to amplify two fragments, approximately...

journal_title：Applied and environmental microbiology

authors： Schesser K,Luder A,Henson JM

更新日期：1991-02-01 00:00:00

abstract：:During incubation of seawater in bottles, the decrease in dissolved oxygen is often nonlinear over time scales frequently used to measure respiration. Numbers of bacteria always increase, and rates of assimilation of dissolved leucine often increase exponentially. This suggests that sample handling disrupts the previo...

journal_title：Applied and environmental microbiology

authors： Pomeroy LR,Sheldon JE,Sheldon WM

更新日期：1994-01-01 00:00:00

abstract：:The ability of the facultative photoheterotroph Rhodobacter sphaeroides to tolerate and reduce high levels of tellurite in addition to at least 10 other rare earth metal oxides and oxyanions has considerable potential for detoxification and bioremediation of contaminated environments. We report the identification and ...

journal_title：Applied and environmental microbiology

authors： O'Gara JP,Gomelsky M,Kaplan S

更新日期：1997-12-01 00:00:00

abstract：:We have assembled a collection of 13 psychrophilic ligA alleles that can serve as genetic elements for engineering mesophiles to a temperature-sensitive (TS) phenotype. When these ligA alleles were substituted into Francisella novicida, they conferred a TS phenotype with restrictive temperatures between 33 and 39°C. W...

journal_title：Applied and environmental microbiology

authors： Pankowski JA,Puckett SM,Nano FE

更新日期：2016-01-15 00:00:00

abstract：:During the fermentation of sake, cells of Saccharomyces cerevisiae are exposed to high concentrations of ethanol, thereby damaging the cell membrane and functional proteins. L-proline protects yeast cells from damage caused by freezing or oxidative stress. In this study, we evaluated the role of intracellular L-prolin...

journal_title：Applied and environmental microbiology

authors： Takagi H,Takaoka M,Kawaguchi A,Kubo Y

更新日期：2005-12-01 00:00:00

abstract：:Heterocystous filamentous cyanobacterium Anabaena cylindrica B629 and nonheterocystous filamentous cyanobacterium Oscillatoria sp. strain Miami BG7 were cultured in media with N(2) as the sole nitrogen source; and activities of oxygen-dependent hydrogen uptake, photohydrogen production, photooxygen evolution, and resp...

journal_title：Applied and environmental microbiology

authors： Kumazawa S,Mitsui A

更新日期：1985-08-01 00:00:00

abstract：:Growth of Clostridium thermocellum in batch cultures was studied over a broad range of cellobiose concentrations. Cultures displayed important differences in their substrate metabolism as determined by the end product yields. Bacterial growth was severely limited when the initial cellobiose concentration was 0.2 (wt/v...

journal_title：Applied and environmental microbiology

authors： Brener D,Johnson BF

更新日期：1984-05-01 00:00:00

abstract：:The killing of Listeria monocytogenes following exposure to low pH, organic acids, and osmotic stress was enhanced by the addition of 5% (vol/vol) ethanol. At pH 3, for example, the presence of this agent stimulated killing by more than 3 log units in 40 min of exposure. The rate of cell death at pH 3.0 was dependent ...

journal_title：Applied and environmental microbiology

authors： Barker C,Park SF

更新日期：2001-04-01 00:00:00

abstract：:Subsurface sediments were recovered from a 52-m-deep borehole cored in the 300 Area of the Hanford Site in southeastern Washington State to assess the potential for biogeochemical transformation of radionuclide contaminants. Microbial analyses were made on 17 sediment samples traversing multiple geological units: the ...

journal_title：Applied and environmental microbiology

authors： Lin X,Kennedy D,Peacock A,McKinley J,Resch CT,Fredrickson J,Konopka A

更新日期：2012-02-01 00:00:00

abstract：:Populations of Rhizobium leguminosarum biovar viciae were sampled from two bulk soils, rhizosphere, and nodules of host legumes, fava bean (Vicia faba) and pea (Pisum sativum) grown in the same soils. Additional populations nodulating peas, fava beans, and vetches (Vicia sativa) grown in other soils and fava bean-nodu...

journal_title：Applied and environmental microbiology

authors： Laguerre G,Louvrier P,Allard MR,Amarger N

更新日期：2003-04-01 00:00:00

abstract：:A polymerase chain reaction (PCR) method designed to sensitively detect and identify Campylobacter jejuni and Campylobacter coli without the need for isolating and culturing strains is described. The intergenic sequence between the flagellin genes flaA and flaB was amplified and characterized with a triple primer or s...

journal_title：Applied and environmental microbiology

authors： Wegmüller B,Lüthy J,Candrian U

更新日期：1993-07-01 00:00:00

abstract：:The genus Sepiola (Cephalopoda: Sepiolidae) contains 10 known species that occur in the Mediterranean Sea today. All Sepiola species have a light organ that contains at least one of two species of luminous bacteria, Vibrio fischeri and Vibrio logei. The two Vibrio species coexist in at least four Sepiola species (S. a...

journal_title：Applied and environmental microbiology

authors： Nishiguchi MK

更新日期：2000-08-01 00:00:00

abstract：:Macroalgae (or seaweeds) are considered potential biomass feedstocks for the production of renewable fuels and chemicals. Their sugar composition is different from that of lignocellulosic biomasses, and in green species, including Ulva lactuca, the major sugars are l-rhamnose and d-glucose. C. beijerinckii DSM 6423 ut...

journal_title：Applied and environmental microbiology

authors： Diallo M,Simons AD,van der Wal H,Collas F,Houweling-Tan B,Kengen SWM,López-Contreras AM

更新日期：2019-02-20 00:00:00

abstract：:Intermediates of production of two batches of traditional mozzarella cheese were analyzed by culture-independent pyrosequencing. The quantitative distribution of taxa within the samples suggested that thermophilic lactic acid bacteria from the natural starter were mainly responsible for the fermentation, while microor...

journal_title：Applied and environmental microbiology

authors： Ercolini D,De Filippis F,La Storia A,Iacono M

更新日期：2012-11-01 00:00:00

abstract：:Quantitative assessment of growth of filamentous microorganisms, such as streptomycetes, is generally restricted to determination of dry weight. Here, we describe a straightforward methylene blue-based sorption assay to monitor microbial growth quantitatively, simply, and rapidly. The assay is equally applicable to un...

journal_title：Applied and environmental microbiology

authors： Fischer M,Sawers RG

更新日期：2013-07-01 00:00:00

abstract：:The persistence of hepatitis A virus (HAV) was determined both in mixtures of septic tank effluent (STE) with dairy cattle manure slurry (DCMS) and in mixtures of STE with swine manure slurry (SMS). HAV was consistently inactivated more rapidly in the two types of mixed wastes than in STE alone or in the control Dulbe...

journal_title：Applied and environmental microbiology

authors： Deng MY,Cliver DO

更新日期：1995-01-01 00:00:00