Optimum pH levels for eluting enteroviruses from sludge solids with beef extract.

abstract：:Among the Frankia strains capable of establishing a nitrogen-fixing symbiosis with actinorrhizal plants, in planta sporangial formation is not universal and has led to the distinction between spore-positive (Sp+) and spore-negative (Sp-) nodules. Numerous Frankia strains have been isolated in pure culture from Sp+ nod...

journal_title：Applied and environmental microbiology

authors： Simonet P,Bosco M,Chapelon C,Moiroud A,Normand P

更新日期：1994-04-01 00:00:00

abstract：:Thiobacillus ferrooxidans is an acidophilic organism important to metal leaching of low-grade ores. The aforementioned importance is related to the ability of the bacterium to oxidize reduced iron and sulfur, principally found in nature as pyrite (FeS2). The present study dealt with sulfide oxidation at low pH values ...

journal_title：Applied and environmental microbiology

authors： Tano T,Lundgren D

更新日期：1978-06-01 00:00:00

abstract：:Listeria monocytogenes does not produce siderophores for iron acquisition. We demonstrate that a number of microbial siderophores and natural iron-binding compounds are able to promote the growth of iron-starved L. monocytogenes. We suggest that the ability of L. monocytogenes to use a variety of exogenous siderophore...

journal_title：Applied and environmental microbiology

authors： Simon N,Coulanges V,Andre P,Vidon DJ

更新日期：1995-04-01 00:00:00

abstract：:Fungal multicopper oxidases have many potential industrial applications, since they perform reactions under mild conditions. We isolated a phenol oxidase from the fungus Acremonium murorum var. murorum that was capable of decolorizing plant chromophores (such as anthocyanins). This enzyme is of interest in laundry-cle...

journal_title：Applied and environmental microbiology

authors： Gouka RJ,van der Heiden M,Swarthoff T,Verrips CT

更新日期：2001-06-01 00:00:00

abstract：:Rhizomucor miehei lipase (RML), as a kind of eukaryotic protein catalyst, plays an important role in the food, organic chemical, and biofuel industries. However, RML retains its catalytic activity below 50°C, which limits its industrial applications at higher temperatures. Soluble expression of this eukaryotic protein...

journal_title：Applied and environmental microbiology

authors： Li G,Fang X,Su F,Chen Y,Xu L,Yan Y

更新日期：2018-01-02 00:00:00

abstract：:A number of peptides were evaluated as chemoattractants for Pseudomonas aeruginosa. Several strains recognized tri-, tetra-, penta-, and hexapeptides in a capillary tube assay. Tripeptides altered at the carboxyl terminus were good attractants, whereas tripeptides altered at the amino terminus did not serve as chemoat...

journal_title：Applied and environmental microbiology

authors： Kelly-Wintenberg K,Montie TC

更新日期：1994-01-01 00:00:00

abstract：:Small streams and their headwaters are key sources of microbial diversity in fluvial systems and serve as an entry point for bacteria from surrounding environments. Community assembly processes occurring in these streams shape downstream population structure and nutrient cycles. To elucidate the development and stabil...

journal_title：Applied and environmental microbiology

authors： Teachey ME,McDonald JM,Ottesen EA

更新日期：2019-05-16 00:00:00

abstract：:Nitrogen-fixing symbiosis between bacteria and the tree legume mesquite (Prosopis glandulosa) is important for the maintenance of many desert ecosystems. Genes essential for nodulation and for extending the host range to mesquite were isolated from cosmid libraries of Rhizobium (mesquite) sp. strain HW17b and Bradyrhi...

journal_title：Applied and environmental microbiology

authors： Thomas PM,Golly KF,Virginia RA,Zyskind JW

更新日期：1995-09-01 00:00:00

abstract：:The supernatant from centrifugation at 1,000 x g of strained rumen fluid was lyophilized, and the residue and sublimate fractions were used to replace fresh rumen fluid in a complete roll tube medium for enumeration of total rumen bacteria. Most of the growth-supporting nutrients in fresh rumen fluid were found in the...

journal_title：Applied and environmental microbiology

authors： Dehority BA,Tirabasso PA

更新日期：1989-12-01 00:00:00

abstract：:The distribution of Clostridium botulinum serotypes A, B, E, and F in Finnish trout farms was examined. A total of 333 samples were tested with a neurotoxin-specific PCR assay. C. botulinum type E was found in 68% of the farm sediment samples, in 15% of the fish intestinal samples, and in 5% of the fish skin samples. ...

journal_title：Applied and environmental microbiology

authors： Hielm S,Björkroth J,Hyytiä E,Korkeala H

更新日期：1998-11-01 00:00:00

abstract：:The inability of two Lactobacillus strains to ferment D-xylose was complemented by the introduction of Lactobacillus pentosus genes encoding D-xylose isomerase, D-xylulose kinase, and a D-xylose catabolism regulatory protein. This result opens the possibility of using D-xylose fermentation as a food-grade selection ma...

journal_title：Applied and environmental microbiology

authors： Posno M,Heuvelmans PT,van Giezen MJ,Lokman BC,Leer RJ,Pouwels PH

更新日期：1991-09-01 00:00:00

abstract：:Microbial transformation of lapachol, a naturally occurring naphthoquinone, was carried out by Curvularia lunata (NRRL 2178). The fungus brings about oxidative cyclization of the substrate to dehydro-alpha-lapachone, which was isolated and characterized by nuclear magnetic resonance and mass spectral analyses; its str...

journal_title：Applied and environmental microbiology

authors： Otten S,Rosazza JP

更新日期：1979-08-01 00:00:00

abstract：:Molecular tools that can provide an estimate of the in situ growth rate of Geobacter species could improve understanding of dissimilatory metal reduction in a diversity of environments. Whole-genome microarray analyses of a subsurface isolate of Geobacter uraniireducens, grown under a variety of conditions, identified...

journal_title：Applied and environmental microbiology

authors： Holmes DE,Giloteaux L,Barlett M,Chavan MA,Smith JA,Williams KH,Wilkins M,Long P,Lovley DR

更新日期：2013-03-01 00:00:00

abstract：:An amylosucrase gene was subjected to high-rate segmental random mutagenesis, which was directed toward a segment encoding amino acids that influence the interaction with substrate molecules in subsites -1 to +3. A screen was used to identify enzyme variants with compromised glucan chain elongation. With an average mu...

journal_title：Applied and environmental microbiology

authors： Schneider J,Fricke C,Overwin H,Hofmann B,Hofer B

更新日期：2009-12-01 00:00:00

abstract：:Prior growth of seven enterohemorrhagic and one nonenterohemorrhagic strains of Escherichia coli in tryptic soy broth with (TSB+G) and without (TSB-G) 1% glucose was evaluated for its effect on acid tolerance. The final pHs of 18-h TSB+G and TSB-G cultures were 4.6 to 5.2 and 6.9 to 7.0, respectively. Cells were then ...

journal_title：Applied and environmental microbiology

authors： Buchanan RL,Edelson SG

更新日期：1996-11-01 00:00:00

abstract：:A stable bacterial community absorbed and transformed the herbicide metolachlor [2-chloro-N-(2-ethyl- 6-methylphenyl)-N-(2-methoxy-1-methylethyl)-acetamide] from a liquid medium. About 80% of the added ring-[U-C]metolachlor (50 mug/ml) disappeared from the medium and accumulated inside the cells. The ratio of cellular...

journal_title：Applied and environmental microbiology

authors： Liu SY,Zheng Z,Zhang R,Bollag JM

更新日期：1989-03-01 00:00:00

abstract：:The fungus Fusarium oxysporum produced a D-amino acid oxidase (EC 1. 4.3.3) in a medium containing glucose as the carbon and energy source and ammonium sulfate as the nitrogen source. The specific D-amino acid oxidase activity was increased up to 12.5-fold with various D-amino acids or their corresponding derivatives ...

journal_title：Applied and environmental microbiology

authors： Gabler M,Fischer L

更新日期：1999-08-01 00:00:00

abstract：:Phomenoic acid and phomenolactone, previously isolated from the fungus Phoma lingam (Tode) Desm., have shown moderate antifungal and antibacterial properties in vitro. To rationalize the production of phomenoic acid, a kinetic study of its biosynthesis in the mycelium was performed. Phomenoic acid and phomenolactone a...

journal_title：Applied and environmental microbiology

authors： Topgi RS,Devys M,Bousquet JF,Kollmann A,Barbier M

更新日期：1987-05-01 00:00:00

abstract：:Cyclic lipopeptides (CLPs) are produced by many Pseudomonas species and have several biological functions, including a role in surface motility, biofilm formation, virulence, and antimicrobial activity. This study focused on the diversity and role of LuxR-type transcriptional regulators in CLP biosynthesis in Pseudomo...

journal_title：Applied and environmental microbiology

authors： de Bruijn I,Raaijmakers JM

更新日期：2009-07-01 00:00:00

abstract：:A gene, designated cry11B, encoding a 81,293-Da crystal protein of Bacillus thuringiensis subsp. jegathesan was cloned by using a gene-specific oligonucleotide probe. The sequence of the Cry11B protein, as deduced from the sequence of the cry11B gene, contains large regions of similarity with the Cry11A toxin (previou...

journal_title：Applied and environmental microbiology

authors： Delécluse A,Rosso ML,Ragni A

更新日期：1995-12-01 00:00:00

abstract：:The vacuum residue fraction of heavy crudes contributes to the viscosity of these oils. Specific microbial cleavage of C-S bonds in alkylsulfide bridges that form linkages in this fraction may result in dramatic viscosity reduction. To date, no bacterial strains have been shown conclusively to cleave C-S bonds within ...

journal_title：Applied and environmental microbiology

authors： Van Hamme JD,Fedorak PM,Foght JM,Gray MR,Dettman HD

更新日期：2004-03-01 00:00:00

abstract：:Several wild-type isolates of marine bdellovibrios formed stable bdelloplasts when they infected gram-negative bacterial prey under certain culture conditions. Synchronous predator-prey cultures and low nutrient concentrations increased the yield of stable bdelloplasts. The bdellovibrio cells retained in the stable bd...

journal_title：Applied and environmental microbiology

authors： Sánchez-Amat A,Torrella F

更新日期：1990-09-01 00:00:00

abstract：:Lantibiotics are antimicrobial peptides belonging to the family of ribosomally synthesized and posttranslationally modified peptides (RiPPs) and feature thioether linkages in their structures. In this study, we identified the biosynthetic gene cluster of a cinnamycin analog, named mathermycin, from Marinactinospora th...

journal_title：Applied and environmental microbiology

authors： Chen E,Chen Q,Chen S,Xu B,Ju J,Wang H

更新日期：2017-07-17 00:00:00

abstract：:Denitrification is an alternative type of anaerobic respiration in which nitrate is reduced to gaseous products via nitrite. The key step in this process is the reduction of nitrite to nitric oxide, which is catalyzed by two structurally different but functionally equivalent forms of nitrite reductase encoded by the n...

journal_title：Applied and environmental microbiology

authors： Pratscher J,Stichternoth C,Fichtl K,Schleifer KH,Braker G

更新日期：2009-02-01 00:00:00

abstract：:Selectively regulating gene expression is an essential molecular tool that is lacking for many pathogenic gram-positive bacteria. In this report, we describe the evaluation of a series of promoters regulated by the bacteriophage P1 temperature-sensitive C1 repressor in Enterococcus faecium, Enterococcus faecalis, and ...

journal_title：Applied and environmental microbiology

authors： Schofield DA,Westwater C,Hoel BD,Werner PA,Norris JS,Schmidt MG

更新日期：2003-06-01 00:00:00

abstract：:"Viili," a fermented milk product, has a firm but viscous consistency. It is produced with traditional mesophilic mixed-strain starters, which have various stabilities in dairy practice. Thirteen morphologically different types of phages were found in 90 viili samples studied by electron microscopy. Ten of the phage t...

journal_title：Applied and environmental microbiology

authors： Saxelin ML,Nurmiaho-Lassila EL,Meriläinen VT,Forsén RI

更新日期：1986-10-01 00:00:00

abstract：:The Atlantis Massif rises 4,000 m above the seafloor near the Mid-Atlantic Ridge and consists of rocks uplifted from Earth's lower crust and upper mantle. Exposure of the mantle rocks to seawater leads to their alteration into serpentinites. These aqueous geochemical reactions, collectively known as the process of ser...

journal_title：Applied and environmental microbiology

authors： Motamedi S,Orcutt BN,Früh-Green GL,Twing KI,Pendleton HL,Brazelton WJ

更新日期：2020-05-19 00:00:00

abstract：:Toxin-producing isolates of Bacillus licheniformis were obtained from foods involved in food poisoning incidents, from raw milk, and from industrially produced baby food. The toxin detection method, based on the inhibition of boar spermatozoan motility, has been shown previously to be a sensitive assay for the emetic ...

journal_title：Applied and environmental microbiology

authors： Salkinoja-Salonen MS,Vuorio R,Andersson MA,Kämpfer P,Andersson MC,Honkanen-Buzalski T,Scoging AC

更新日期：1999-10-01 00:00:00

abstract：:The detection of Listeria monocytogenes from food is currently carried out using a double enrichment. For the ISO methodology, this double enrichment is performed using half-Fraser and Fraser broths, in which the overgrowth of L. innocua can occur in samples where both species are present. In this study, we analyzed t...

journal_title：Applied and environmental microbiology

authors： Lemaître JP,Duroux A,Pimpie R,Duez JM,Milat ML

更新日期：2015-03-01 00:00:00

abstract：:The metabolism of aflatoxin B1 to aflatoxins M1 and Q1 by rat liver microsomes from animals pretreated with polychlorinated or polybrominated biphenyl congeners depended on the structure of the halogenated biphenyl inducers. Microsomes from rats treated with phenobarbital (PB) or halogenated biphenyls that exhibit PB-...

journal_title：Applied and environmental microbiology

authors： Halvorson MR,Phillips TD,Safe SH,Robertson LW

更新日期：1985-04-01 00:00:00