Exopolysaccharide-Deficient Mutants of Rhizobium fredii HH303 Which Are Symbiotically Effective.

abstract：:The utilization by Alcaligenes faecalis of electrodes as the electron donor for denitrification was investigated in this study. The denitrification rate of A. faecalis with a poised potential was greatly enhanced compared with that of the controls without poised potentials. For nitrate reduction, although A. faecalis ...

journal_title：Applied and environmental microbiology

authors： Wang X,Yu P,Zeng C,Ding H,Li Y,Wang C,Lu A

更新日期：2015-08-15 00:00:00

abstract：:We examined the genetic structure and symbiotic characteristics of Bradyrhizobium isolates recovered from four legume species (Lupinus albus [white lupine], Lupinus angustifolius [blue lupine], Ornithopus compressus [yellow serradella], and Macroptilium atropurpureum [sirato]) grown in an Oregon soil. We established t...

journal_title：Applied and environmental microbiology

authors： Bottomley PJ,Cheng HH,Strain SR

更新日期：1994-06-01 00:00:00

abstract：:The preformed antimicrobial compounds produced by maize, 2,4-dihydroxy-7-methoxy-2H-1,4-benzoxazin-3-one and its desmethoxy derivative 2,4-dihydroxy-2H-1,4-benzoxazin-3-one, are highly reactive benzoxazinoids that quickly degrade to the antimicrobials 6-methoxy-2-benzoxazolinone (MBOA) and 2-benzoxazolinone (BOA), res...

journal_title：Applied and environmental microbiology

authors： Glenn AE,Hinton DM,Yates IE,Bacon CW

更新日期：2001-07-01 00:00:00

abstract：:Acidophilic archaea of the archaeal Richmond Mine acidophilic nanoorganisms (ARMAN) group from the uncultured candidate phylum "Candidatus Micrarchaeota" have small genomes and cell sizes and are known to be metabolically dependent and physically associated with their Thermoplasmatales hosts. However, phylogenetically...

journal_title：Applied and environmental microbiology

authors： Kadnikov VV,Savvichev AS,Mardanov AV,Beletsky AV,Chupakov AV,Kokryatskaya NM,Pimenov NV,Ravin NV

更新日期：2020-11-10 00:00:00

abstract：:Copper appears to be influencing the distribution and abundance of phytoplankton in marine environments, and cyanobacteria are thought to be the most sensitive of the phytoplankton groups to copper toxicity. By using growth assays of phylogenetically divergent clades, we found that coastal strains of marine Synechococ...

journal_title：Applied and environmental microbiology

authors： Stuart RK,Dupont CL,Johnson DA,Paulsen IT,Palenik B

更新日期：2009-08-01 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：:Clostridium difficile causes a potentially fatal diarrheal disease through the production of its principal virulence factors, toxin A and toxin B. The tcdC gene is thought to encode a negative regulator of toxin production. Therefore, increased toxin production, and hence increased virulence, is often inferred in stra...

journal_title：Applied and environmental microbiology

authors： Cartman ST,Kelly ML,Heeg D,Heap JT,Minton NP

更新日期：2012-07-01 00:00:00

abstract：:Across evolution, N-glycosylation involves oligosaccharyltransferases that transfer lipid-linked glycans to selected Asn residues of target proteins. While these enzymes catalyze similar reactions in each domain, differences exist in terms of the chemical composition, length and degree of phosphorylation of the lipid ...

journal_title：Applied and environmental microbiology

authors： Cohen-Rosenzweig C,Guan Z,Shaanan B,Eichler J

更新日期：2014-01-01 00:00:00

abstract：:Of more than 400 bacteria isolated from turbot (Scophthalmus maximus), 89 have previously been shown to inhibit the in vitro growth of the fish pathogen Vibrio anguillarum. The aim of the present study was to investigate the potential of seven of these strains, as well as of intestinal isolates (four strains) from a c...

journal_title：Applied and environmental microbiology

authors： Olsson JC,Westerdahl A,Conway PL,Kjelleberg S

更新日期：1992-02-01 00:00:00

abstract：:The detection and enumeration of most cultivable human enteric viruses from water is possible if samples are first inoculated onto a suitable cell line such as MA-104 or BGM. Virus growth is then detected by an indirect immunoperoxidase method with human immune serum globulin as the source of antibody to most enteric ...

journal_title：Applied and environmental microbiology

authors： Payment P,Trudel M

更新日期：1985-11-01 00:00:00

abstract：:The biotinylating reagent succinimidyl 6-(biotinamido)hexanoate was used to label the cell surfaces of the cosmopolitan, marine, eukaryotic microorganism Emiliania huxleyi under different growth conditions. Proteins characteristic of different nutrient conditions could be identified. In particular, a nitrogen-regulate...

journal_title：Applied and environmental microbiology

authors： Palenik B,Koke JA

更新日期：1995-09-01 00:00:00

abstract：:A rich history of investigation documents various Drosophila-yeast mutualisms, suggesting that Drosophila suzukii similarly has an association with a specific yeast species or community. To discover candidate yeast species, yeasts were isolated from larval frass, adult midguts, and fruit hosts of D. suzukii. Terminal ...

journal_title：Applied and environmental microbiology

authors： Hamby KA,Hernández A,Boundy-Mills K,Zalom FG

更新日期：2012-07-01 00:00:00

abstract：:A method has been described which can compare the efficacy of different nongermicidal handwashing protocols for removal of transient microbial flora without the necessity of establishing or relying on a previously determined baseline for an individual subject. The wash effluent is collected, and colony counts for the ...

journal_title：Applied and environmental microbiology

authors： Vesley D,Lillquist DR,Le CT

更新日期：1985-05-01 00:00:00

abstract：:Filamentous fungi are widely used for the production of homologous and heterologous proteins. Recently, there has been increasing interest in Aspergillus oryzae because of its ability to produce heterologous proteins in solid-state culture. To provide an overview of protein secretion by A. oryzae in solid-state cultur...

journal_title：Applied and environmental microbiology

authors： Oda K,Kakizono D,Yamada O,Iefuji H,Akita O,Iwashita K

更新日期：2006-05-01 00:00:00

abstract：:To enhance the production of isoprene, a volatile 5-carbon hydrocarbon, in the Gram-positive spore-forming rod-shaped bacterium Bacillus subtilis, 1-deoxy-d-xylulose-5-phosphate synthase (Dxs) and 1-deoxy-d-xylulose-5-phosphate reductoisomerase (Dxr) were overexpressed in B. subtilis DSM 10. For the strain that overex...

journal_title：Applied and environmental microbiology

authors： Xue J,Ahring BK

更新日期：2011-04-01 00:00:00

abstract：:By using thin-layer chromatography and infrared spectroscopy, xanthomegnin and viomellein have been isolated and identified from species of the Aspergillus ochraceus group. A correlation was established between the occurrence of these fungal quinones in the fungal cultural products and the ability of these products to...

journal_title：Applied and environmental microbiology

authors： Robbers JE,Hong S,Tuite J,Carlton WW

更新日期：1978-12-01 00:00:00

abstract：:Anaerobic ammonium oxidation is a recent addition to the microbial nitrogen cycle, and its metabolic pathway, including the production and conversion of its intermediate hydrazine, is not well understood. Therefore, the effect of hydroxylamine addition on the hydrazine metabolism of anaerobic ammonium-oxidizing (anamm...

journal_title：Applied and environmental microbiology

authors： van der Star WR,van de Graaf MJ,Kartal B,Picioreanu C,Jetten MS,van Loosdrecht MC

更新日期：2008-07-01 00:00:00

abstract：:Efficacious systems are described for the large-scale growth in tissue culture and concentration of infectious (P3HR-1) and transforming (B95-8) Epstein-Barr virus. Also recorded here are our updated procedures for growing stock cultures and protocols to harvest fluids containing biologically active virus which is inf...

journal_title：Applied and environmental microbiology

authors： Shibley GP,Manousos M,Munch K,Zelljadt I,Fisher L,Mayyasi S,Harewood K,Stevens R,Jensen KE

更新日期：1980-12-01 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：:Chitin is an abundant biopolymer whose degradation is mediated primarily by bacterial chitinases. We developed a degenerate PCR primer set to amplify a approximately 900-bp fragment of family 18, group I chitinase genes and used it to retrieve these gene fragments from environmental samples. Clone libraries of presump...

journal_title：Applied and environmental microbiology

authors： LeCleir GR,Buchan A,Hollibaugh JT

更新日期：2004-12-01 00:00:00

abstract：:RNA was degraded at 60 degrees C for 24 h by halophilic nuclease H in supernatants from broth cultures of Micrococcus varians subsp. halophilus containing 12% NaCl. Since contaminating 5'-nucleotidase exhibited almost no activity under these conditions, the 5'-GMP formed could be recovered from the reaction mixture, a...

journal_title：Applied and environmental microbiology

authors： Kamekura M,Hamakawa T,Onishi H

更新日期：1982-10-01 00:00:00

abstract：:Although many Lactobacillus strains used as probiotics are believed to modulate host immune responses, the molecular natures of the components of such probiotic microorganisms directly involved in immune modulation process are largely unknown. We aimed to assess the function of polysaccharide moiety of the cell wall o...

journal_title：Applied and environmental microbiology

authors： Yasuda E,Serata M,Sako T

更新日期：2008-08-01 00:00:00

abstract：:Simian rotavirus SA-11 was concentrated from tap water by adsorption to and elution from microporous filters, followed by organic flocculation. Two types of filters were compared for their ability to concentrate the virus. Both Zeta Plus 60S and Cox AA type M-780 filters were efficient for virus adsorption, but the ef...

journal_title：Applied and environmental microbiology

authors： Guttman-Bass N,Armon R

更新日期：1983-03-01 00:00:00

abstract：:Accurate enumeration of viruses within environmental samples is critical for investigations of the ecological role of viruses and viral infection within microbial communities. This report evaluates differences in viral and bacterial direct counts between estuarine sediment samples which were either immediately process...

journal_title：Applied and environmental microbiology

authors： Helton RR,Liu L,Wommack KE

更新日期：2006-07-01 00:00:00

abstract：:Rhodococcus equi is a leading cause of severe pneumonia in foals. Standard treatment is dual antimicrobial therapy with a macrolide and rifampin, but the emergence of macrolide- and rifampin-resistant R. equi isolates is an increasing problem. The objective of this study was to determine the effect of macrolide and/or...

journal_title：Applied and environmental microbiology

authors： Willingham-Lane JM,Berghaus LJ,Berghaus RD,Hart KA,Giguère S

更新日期：2019-03-22 00:00:00

abstract：:In Pseudomonas aeruginosa, the catabolite repression control (Crc) protein repressed the formation of the blue pigment pyocyanin in response to a preferred carbon source (succinate) by interacting with phzM mRNA, which encodes a key enzyme in pyocyanin biosynthesis. Crc bound to an extended imperfect recognition seque...

journal_title：Applied and environmental microbiology

authors： Huang J,Sonnleitner E,Ren B,Xu Y,Haas D

更新日期：2012-07-01 00:00:00

abstract：:In this article, a new mechanism influencing the transport of microorganisms through unsaturated porous media is examined, and a new method for directly visualizing bacterial behavior within a porous medium under controlled chemical and flow conditions is introduced. Resting cells of hydrophilic and relatively hydroph...

journal_title：Applied and environmental microbiology

authors： Wan J,Wilson JL,Kieft TL

更新日期：1994-02-01 00:00:00

abstract：:The isolation of auxotrophic mutants, which is a prerequisite for a substantial genetic analysis and metabolic engineering of obligate methylotrophs, remains a rather complicated task. We describe a novel method of constructing mutants of the bacterium Methylophilus methylotrophus AS1 that are auxotrophic for aromatic...

journal_title：Applied and environmental microbiology

authors： Yomantas YA,Tokmakova IL,Gorshkova NV,Abalakina EG,Kazakova SM,Gak ER,Mashko SV

更新日期：2010-01-01 00:00:00

abstract：:Caldalkalibacillus thermarum strain TA2.A1 grew in pH-controlled batch culture containing a fermentable growth substrate (i.e., sucrose) from pH 7.5 to 10.0 with no significant change in the specific growth rate, suggesting that this bacterium was a facultative alkaliphile. However, when strain TA2.A1 was grown on a n...

journal_title：Applied and environmental microbiology

authors： McMillan DG,Keis S,Berney M,Cook GM

更新日期：2009-12-01 00:00:00

abstract：:Sporulation of Bacillus larvae NRRL B-3650 occurred only at aeration rates lower than those used for cultivation of most Bacillus species. One possible explanation for the requirement for a low level of aeration in B. larvae is that toxic forms of oxygen such as H(2)O(2) and superoxide are involved. The superoxide dis...

journal_title：Applied and environmental microbiology

authors： Dingman DW,Stahly DP

更新日期：1984-06-01 00:00:00