Occurrence of Rhodococcus coprophilus and associated actinomycetes in feces, sewage, and freshwater.

abstract：:Chitin is massively produced by freshwater plankton species as a structural element of their exoskeleton or cell wall. At the same time, chitin does not accumulate in the predominantly anoxic sediments, underlining its importance as carbon and nitrogen sources for sedimentary microorganisms. We studied chitin degradat...

journal_title：Applied and environmental microbiology

authors： Wörner S,Pester M

更新日期：2019-08-29 00:00:00

abstract：:The susceptibility of Trichoplusia ni larvae to several Bacillus thuringiensis insecticidal crystal proteins (ICPs) was tested. Neonatal larvae proved to be susceptible to solubilized trypsin-treated CryIA(a), CryIA(b), and CryIA(c) (50% lethal concentrations [LC(50)s], 570, 480, and 320 ng/cm, respectively) but showe...

journal_title：Applied and environmental microbiology

authors： Estada U,Ferre J

更新日期：1994-10-01 00:00:00

abstract：:An aminotransferase capable of transaminating 2-oxo-4-[(hydroxy)(methyl)phosphinoyl]butyric acid to L-phosphinothricin [L-homoalanine-4-yl-(methyl)phosphinic acid], the active ingredient of the herbicide Basta (Hoechst AG), was purified to apparent homogeneity from Escherichia coli K-12. The enzyme catalyzes the trans...

journal_title：Applied and environmental microbiology

authors： Schulz A,Taggeselle P,Tripier D,Bartsch K

更新日期：1990-01-01 00:00:00

abstract：:The haloalkane dehalogenase enzyme DmmA was identified by marine metagenomic screening. Determination of its crystal structure revealed an unusually large active site compared to those of previously characterized haloalkane dehalogenases. Here we present a biochemical characterization of this interesting enzyme with e...

journal_title：Applied and environmental microbiology

authors： Buryska T,Babkova P,Vavra O,Damborsky J,Prokop Z

更新日期：2018-01-02 00:00:00

abstract：:Rsan-ver, a strain of Pseudomonas aeruginosa isolated at this department, was used for the development of a continuous process for biosurfactant production. The active compounds were identified as rhamnolipids. A final medium for production was designed in continuous culture by means of medium shifts, since the format...

journal_title：Applied and environmental microbiology

authors： Guerra-Santos L,Käppeli O,Fiechter A

更新日期：1984-08-01 00:00:00

abstract：:The chlorine resistance of cysts of the flagellate protozoan Giardia muris was examined. This organism, which is pathogenic to mice, is being considered as a model for the inactivation of the human pathogen Giardia lamblia. Excystation was used as the criterion for cyst viability. Experiments were performed at pH 5, 7...

journal_title：Applied and environmental microbiology

authors： Leahy JG,Rubin AJ,Sproul OJ

更新日期：1987-07-01 00:00:00

abstract：:Infectious salmon anemia (ISA) is a serious disease of marine-farmed Atlantic salmon (Salmo salar) caused by ISA virus (ISAV), belonging to the genus Isavirus, family Orthomyxoviridae. There is an urgent need to understand the virulence factors and pathogenic mechanisms of ISAV and to develop new vaccine approaches. U...

journal_title：Applied and environmental microbiology

authors： Toro-Ascuy D,Tambley C,Beltran C,Mascayano C,Sandoval N,Olivares E,Medina RA,Spencer E,Cortez-San Martín M

更新日期：2015-02-01 00:00:00

abstract：:Antibody production against aflatoxin B1 was compared in three rabbits and one goat. Titers obtained were 20 times higher in the rabbits than in the goat. The goat antiserum appeared to have a higher degree of cross-reactivity for other aflatoxins and related metabolites than did the rabbit antiserum. ...

journal_title：Applied and environmental microbiology

authors： Gaur PK,El-Nakib O,Chu FS

更新日期：1980-09-01 00:00:00

abstract：:Cry1Fa insecticidal protein was successfully radiolabeled with (125)I-Na. Specific binding to brush border membrane vesicles was shown for the lepidopteran species Ostrinia nubilalis, Spodoptera frugiperda, Spodoptera exigua, Helicoverpa armigera, Heliothis virescens, and Plutella xylostella. Homologous competition as...

journal_title：Applied and environmental microbiology

authors： Hernández-Rodríguez CS,Hernández-Martínez P,Van Rie J,Escriche B,Ferré J

更新日期：2012-06-01 00:00:00

abstract：:The recent increased detection of acetic acid bacteria (AAB) of the genus Asaia as symbionts of mosquitoes, such as Anopheles spp. and Aedes spp., prompted us to investigate the diversity of these symbionts and their relationships in different mosquito species and populations. Following cultivation-dependent and -inde...

journal_title：Applied and environmental microbiology

authors： Chouaia B,Rossi P,Montagna M,Ricci I,Crotti E,Damiani C,Epis S,Faye I,Sagnon N,Alma A,Favia G,Daffonchio D,Bandi C

更新日期：2010-11-01 00:00:00

abstract：:A collection of 13 field isolates of Rhizobium leguminosarum bv. viciae that have the ability to nodulate the roots of current North American cultivars of peas as well as a "primitive" cultivar, Afghanistan, was examined. These isolates originated in diverse geographical regions of the world, which indicates that this...

journal_title：Applied and environmental microbiology

authors： Ma SW,Iyer VN

更新日期：1990-07-01 00:00:00

abstract：:Filamentous, gliding, sulfide-oxidizing bacteria of the genus Thioploca were found on sediments in profundal areas of Lake Biwa, a Japanese freshwater mesotrophic lake, and were characterized morphologically and phylogenetically. The Lake Biwa Thioploca resembled morphologically Thioploca ingrica, a brackish water spe...

journal_title：Applied and environmental microbiology

authors： Kojima H,Teske A,Fukui M

更新日期：2003-01-01 00:00:00

abstract：:Salmonella species are pathogenic bacteria often detected in sewage, freshwater, marine coastal water, and groundwater. Salmonella spp. can survive for long periods in natural waters, and the persistence of specific and epidemic strains is of great concern in public health. However, the diversity of species found in t...

journal_title：Applied and environmental microbiology

authors： Baudart J,Lemarchand K,Brisabois A,Lebaron P

更新日期：2000-04-01 00:00:00

abstract：:In this study, we report the cloning and expression of lipase gene from Pseudomonas fluorescens B52, a psychrotrophic spoilage bacterium isolated from refrigerated raw milk. Sequence analysis revealed one major open reading frame of 1,428 nucleotides that was predicted to encode a protein with a molecular weight of 50...

journal_title：Applied and environmental microbiology

authors： Tan Y,Miller KJ

更新日期：1992-04-01 00:00:00

abstract：:Estimations of the bacterial content of air can be more easily made now than a decade ago, with colony formation the method of choice for enumeration of airborne bacteria. However, plate counts are subject to error because bacteria exposed to the air may remain viable yet lose the ability to form colonies, i.e., they ...

journal_title：Applied and environmental microbiology

authors： Heidelberg JF,Shahamat M,Levin M,Rahman I,Stelma G,Grim C,Colwell RR

更新日期：1997-09-01 00:00:00

abstract：:We examined nitrate-dependent Fe(2+) oxidation mediated by anaerobic ammonium oxidation (anammox) bacteria. Enrichment cultures of "Candidatus Brocadia sinica" anaerobically oxidized Fe(2+) and reduced NO3(-) to nitrogen gas at rates of 3.7 ± 0.2 and 1.3 ± 0.1 (mean ± standard deviation [SD]) nmol mg protein(-1) min(-...

journal_title：Applied and environmental microbiology

authors： Oshiki M,Ishii S,Yoshida K,Fujii N,Ishiguro M,Satoh H,Okabe S

更新日期：2013-07-01 00:00:00

abstract：:Anaerobic acetate degradation at 70 degrees C and at 55 degrees C (as a reference) was studied by running laboratory upflow anaerobic sludge blanket (UASB) reactors inoculated with mesophilic granular sludge. In UASB reactors fed with acetate-containing media (3 g of chemical oxygen demand [COD] per liter, correspondi...

journal_title：Applied and environmental microbiology

authors： Rintala J,Lepistö S,Ahring B

更新日期：1993-06-01 00:00:00

abstract：:The thermophilic homoacetogenic bacterium Moorella sp. strain HUC22-1 ferments glyoxylate to acetate roughly according to the reaction 2 glyoxylate --> acetate + 2 CO(2). A batch culture with glyoxylate and yeast extract yielded 11.7 g per mol of cells per substrate, which was much higher than that obtained with H(2) ...

journal_title：Applied and environmental microbiology

authors： Sakai S,Inokuma K,Nakashimada Y,Nishio N

更新日期：2008-03-01 00:00:00

abstract：:Spores of Clostridium bifermentans KMR-1 were produced for use as a microbial inoculum for bioremediation and were preserved in both liquid and dry forms. All spore formulations showed good viability and ability to biodegrade the target compound, 2,4,6-trinitrotoluene (TNT), after 4 months of storage. For low-cost bul...

journal_title：Applied and environmental microbiology

authors： Sembries S,Crawford RL

更新日期：1997-05-01 00:00:00

abstract：:Selective growth inhibitors of Sphaerotilus natans were detected in the culture broths of several strains of Streptomyces. Anslimins A and B were isolated from the culture broth of Streptomyces oganonensis by adsorption on resinous adsorbent followed by elution with 50% aqueous acetone. The A and B components were the...

journal_title：Applied and environmental microbiology

authors： Takiguchi Y,Yoshikawa H,Terao M

更新日期：1980-06-01 00:00:00

abstract：:Mono Lake is an alkaline hypersaline lake that supports high methane oxidation rates. Retrieved pmoA sequences showed a broad diversity of aerobic methane oxidizers including the type I methanotrophs Methylobacter (the dominant genus), Methylomicrobium, and Methylothermus, and the type II methanotroph Methylocystis. S...

journal_title：Applied and environmental microbiology

authors： Lin JL,Joye SB,Scholten JC,Schäfer H,McDonald IR,Murrell JC

更新日期：2005-10-01 00:00:00

abstract：:In this study, we developed a large-scale screening of bacterial strains in order to identify novel candidate probiotics with immunomodulatory properties. For this, 158 strains, including a majority of lactic acid bacteria (LAB), were screened by two different cellular models: tumor necrosis factor alpha (TNF-α)-activ...

journal_title：Applied and environmental microbiology

authors： Kechaou N,Chain F,Gratadoux JJ,Blugeon S,Bertho N,Chevalier C,Le Goffic R,Courau S,Molimard P,Chatel JM,Langella P,Bermúdez-Humarán LG

更新日期：2013-03-01 00:00:00

abstract：:Yeast extract agar, pork infusion agar, and modifications of these media were used to recover heated Clostridium botulinum spores. The D- and z-values were determined. Two type A strains and one type B strain of C. botulinum were studied. In all cases the D-values were largest when the spores were recovered in yeast e...

journal_title：Applied and environmental microbiology

authors： Odlaug TE,Pflug IJ

更新日期：1977-10-01 00:00:00

abstract：:We used global transcript analyses and mutant studies to investigate the pathways that impact H(2) production in the photosynthetic bacterium Rhodobacter sphaeroides. We found that H(2) production capacity is related to the levels of expression of the nitrogenase and hydrogenase enzymes and the enzymes of the Calvin-B...

journal_title：Applied and environmental microbiology

authors： Kontur WS,Ziegelhoffer EC,Spero MA,Imam S,Noguera DR,Donohue TJ

更新日期：2011-10-01 00:00:00

abstract：:A novel type II restriction and modification (R-M) system, Sth368I, which confers resistance to phiST84, was found in Streptococcus thermophilus CNRZ368 but not in the very closely related strain A054. Partial sequencing of the integrative conjugative element ICESt1, carried by S. thermophilus CNRZ368 but not by A054,...

journal_title：Applied and environmental microbiology

authors： Burrus V,Bontemps C,Decaris B,Guédon G

更新日期：2001-04-01 00:00:00

abstract：:Anaerobic degradation of 2-methylnaphthalene was investigated with a sulfate-reducing enrichment culture. Metabolite analyses revealed two groups of degradation products. The first group comprised two succinic acid adducts which were identified as naphthyl-2-methyl-succinic acid and naphthyl-2-methylene-succinic acid ...

journal_title：Applied and environmental microbiology

authors： Annweiler E,Materna A,Safinowski M,Kappler A,Richnow HH,Michaelis W,Meckenstock RU

更新日期：2000-12-01 00:00:00

abstract：:Bactericidal actions of the silver ion on Escherichia coli as a model microorganism were studied using energy-filtering transmission electron microscopy (EFTEM), two-dimensional electrophoresis (2-DE), and matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS). EFTEM observations d...

journal_title：Applied and environmental microbiology

authors： Yamanaka M,Hara K,Kudo J

更新日期：2005-11-01 00:00:00

abstract：:UV light only penetrates liquid food surfaces to a very short depth, thereby limiting its industrial application in food pasteurization. One promising alternative is the combination of UV light with mild heat (UV-H), which has been demonstrated to produce a synergistic bactericidal effect. The aim of this article is t...

journal_title：Applied and environmental microbiology

authors： Gayán E,Mañas P,Álvarez I,Condón S

更新日期：2013-07-01 00:00:00

abstract：:In this report, we describe the selective cloning of large DNA fragments from magnetotactic metagenomes from various aquatic habitats. This was achieved by a two-step magnetic enrichment which allowed the mass collection of environmental magnetotactic bacteria (MTB) virtually free of nonmagnetic contaminants. Four fos...

journal_title：Applied and environmental microbiology

authors： Jogler C,Lin W,Meyerdierks A,Kube M,Katzmann E,Flies C,Pan Y,Amann R,Reinhardt R,Schüler D

更新日期：2009-06-01 00:00:00

abstract：:Glycogen debranching enzyme (GDE) has 4-alpha-glucanotransferase and amylo-1,6-glucosidase activities in the single polypeptide chain. We analyzed the detailed action profile of GDE from Saccharomyces cerevisiae on amylose and tested whether GDE catalyzes cyclization of amylose. GDE treatment resulted in a rapid reduc...

journal_title：Applied and environmental microbiology

authors： Yanase M,Takata H,Takaha T,Kuriki T,Smith SM,Okada S

更新日期：2002-09-01 00:00:00