Abstract:
:Lactobacillus species normally found in the intestinal tract of humans varied in the ability to deconjugate bile acids, whereas laboratory strains of Lactobacillus acidophilus deconjugated both glycocholate and taurocholate. All isolates of L. acidophilus from human feces deconjugated taurocholate, whereas only one of six deconjugated glycocholate. None of 13 isolates identified as L. casei deconjugated taurocholate, whereas 9 deconjugated glycocholate. The deconjugating system of L. acidophilus appeared to be constitutive, required low oxidation-reduction potential, and was most active at pH 6. No degradation beyond deconjugation was detected.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Gilliland SE,Speck MLdoi
10.1128/AEM.33.1.15-18.1977keywords:
subject
Has Abstractpub_date
1977-01-01 00:00:00pages
15-8issue
1eissn
0099-2240issn
1098-5336journal_volume
33pub_type
杂志文章abstract::During microaerophilic growth of magnetic spirillum MS-1 on tartrate and nitrate, a maximal cell density was obtained at an initial oxygen partial pressure of 17 Pa. A transient accumulation of nitrous oxide and a 1:2 (mol/mol) stoichiometry between tartrate oxidation and nitrate reduction were observed, indicating th...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.40.2.429-430.1980
更新日期:1980-08-01 00:00:00
abstract::Gordonia polyisoprenivorans strain VH2, a potent rubber-degrading actinomycete, harbors two latex clearing proteins (Lcps), which are known to be essential for the microbial degradation of rubber. However, biochemical information on the exact role of this protein in the degradation of polyisoprene was lacking. In this...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01502-14
更新日期:2014-09-01 00:00:00
abstract::Ammoniacal silver nitrate (10 mg/ml) was added to terminate acetylene reduction assays used to measure nitrogenase activity. Silver nitrate quantitatively precipitated acetylene as the carbide salt, but did not affect the ethylene formed. The vials containing ethylene can be analyzed gas chromatographically at the rat...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.39.5.1078-1080.1980
更新日期:1980-05-01 00:00:00
abstract::Carnobacteriocin B2 is a well-characterized class II bacteriocin produced by a 61-kb plasmid from Carnobacterium piscicola LV17. Export of this bacteriocin is dependent on specific ABC (ATP-binding cassette) secretion proteins. Divergicin A is a strongly hydrophobic narrow-spectrum bacteriocin produced by a 3.4-kb pla...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.62.11.4095-4099.1996
更新日期:1996-11-01 00:00:00
abstract::Heterotrophic bacteria in the SAR11 and Roseobacter lineages shape the marine carbon, nitrogen, phosphorous, and sulfur cycles, yet they do so having adopted divergent ecological strategies. Currently, it is unknown whether these globally significant groups partition into specific niches with respect to micronutrients...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.03128-15
更新日期:2016-01-04 00:00:00
abstract::Trench leachate samples collected anoxically from shallow-land, low-level radioactive waste disposal sites were analyzed for total aerobic and anaerobic populations, sulfate reducers, denitrifiers, and methanogens. Among the several aerobic and anaerobic bacteria isolated, only Bacillus sp., Pseudomonas sp., Citrobact...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.40.1.108-113.1980
更新日期:1980-07-01 00:00:00
abstract::Piriformospora indica (Hymenomycetes, Basidiomycota) is a newly described cultivable endophyte that colonizes roots. Inoculation with the fungus and application of fungal culture filtrate promotes plant growth and biomass production. Due to its ease of culture, this fungus provides a model organism for the study of be...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.65.6.2741-2744.1999
更新日期:1999-06-01 00:00:00
abstract::The genetic diversity of Desulfovibrio species in environmental samples was determined by denaturing gradient gel electrophoresis (DGGE) of PCR-amplified [NiFe] hydrogenase gene fragments. Five different PCR primers were designed after comparative analysis of [NiFe] hydrogenase gene sequences from three Desulfovibrio ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.61.6.2203-2210.1995
更新日期:1995-06-01 00:00:00
abstract::Total coliforms and total coliforms resistant to streptomycin, tetracycline, or chloramphenicol were isolated from filtered activated sludge effluents before and after UV light irradiation. Although the UV irradiation effectively disinfected the wastewater effluent, the percentage of the total surviving coliform popul...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.43.2.371-377.1982
更新日期:1982-02-01 00:00:00
abstract::This study investigated the efficiency of methane and ammonium for stimulating trichloroethylene (TCE) biodegradation in groundwater microcosms (flasks and batch exchange columns) at a psychrophilic temperature (12 degrees C) typical of shallow aquifers in the northern United States or a mesophilic temperature (24 deg...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.63.10.3866-3871.1997
更新日期:1997-10-01 00:00:00
abstract::Simulation of a heat process used in the terminal dry-heat decontamination of the Viking spacecraft is reported. Naturally occurring airborne bacterial spores were collected on Teflon ribbons in selected spacecraft assembly areas and subsequently subjected to dry heat. Thermal inactivation experiments were conducted a...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.36.3.473-479.1978
更新日期:1978-09-01 00:00:00
abstract::In a batch of barley associated with field cases of mycotoxic porcine nephropathy and containing ochratoxin A and citrinin, the mycoflora were isolated by parallel incubation at 10 and 25 degrees C. Subsequently, the isolated cultures were checked for production of nephrotoxins (xanthomegnin, viomellein, ochratoxin, a...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.46.6.1311-1317.1983
更新日期:1983-12-01 00:00:00
abstract::Five cases of primary amoebic meningoencephalitis associated with swimming in freshwater lakes have been recorded in Florida over the past 14 years. The present study demonstrated that pathogenic Naegleria, the causative agent, is relatively widespread. Twelve of 26 lakes sampled only once yielded the amoeba. Populati...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.34.6.661-667.1977
更新日期:1977-12-01 00:00:00
abstract::Helaeomyia petrolei larvae isolated from the asphalt seeps of Rancho La Brea in Los Angeles, Calif., were examined for microbial gut contents. Standard counts on Luria-Bertani, MacConkey, and blood agar plates indicated ca. 2 x 10(5) heterotrophic bacteria per larva. The culturable bacteria represented 15 to 20% of th...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.65.4.1477-1482.1999
更新日期:1999-04-01 00:00:00
abstract::Pleurotus ostreatus is widely cultivated in China. However, its cultivation is strongly affected by seasonal temperature changes, especially the high temperatures of summer. Nitric oxide (NO) was previously reported to alleviate oxidative damage to mycelia by regulating trehalose. In this study, we found that NO allev...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02303-19
更新日期:2020-02-18 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.69.7.4308-4311.2003
更新日期:2003-07-01 00:00:00
abstract::Many insects are associated with heritable symbionts that mediate ecological interactions, including host protection against natural enemies. The cowpea aphid, Aphis craccivora, is a polyphagous pest that harbors Hamiltonella defensa, which defends against parasitic wasps. Despite this protective benefit, this symbion...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01775-14
更新日期:2014-09-01 00:00:00
abstract::Short-chain-length-medium-chain-length polyhydroxyalkanoates were synthesized in Saccharomyces cerevisiae from intermediates of the beta-oxidation cycle by expressing the polyhydroxyalkanoate synthases from Aeromonas caviae and Ralstonia eutropha in the peroxisomes. The quantity of polymer produced was increased by us...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.70.9.5685-5687.2004
更新日期:2004-09-01 00:00:00
abstract::Campylobacter jejuni was isolated from raw milk by a method that can routinely detect less than or equal to 1 organism per ml. This procedure was used in a survey of 195 separate farms and showed a 1.5% incidence of C. jejuni in milk from bulk tanks. ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.46.2.459-462.1983
更新日期:1983-08-01 00:00:00
abstract::Xenorhabdus nematophila engages in a mutualistic association with the nematode Steinernema carpocapsae. The nematode invades and traverses the gut of susceptible insects. X. nematophila is released in the insect blood (hemolymph), where it suppresses host immune responses and functions as a pathogen. X. nematophila pr...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00768-14
更新日期:2014-07-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.63.9.3519-3525.1997
更新日期:1997-09-01 00:00:00
abstract::Genes of Salmonella enterica serovar Typhimurium LT2 expected to be specifically present in Salmonella were selected using the Basic Local Alignment Search Tool (BLAST) program. The 152 selected genes were compared with 11 genomic sequences of Salmonella serovars, including Salmonella enterica subsp. I and IIIb and Sa...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00138-06
更新日期:2006-09-01 00:00:00
abstract::The amino acid profiles, modified essential amino acid (MEAA) indexes, and in vitro pepsin digestibilities were determined for single-cell protein (SCP) from certain industrially important lactobacilli. For the three parameters examined, substantial differences were seen between different Lactobacillus species and bet...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.33.4.901-905.1977
更新日期:1977-04-01 00:00:00
abstract::Three strains of Streptococcus bovis, a homolactic bacterium capable of utilizing starch, were evaluated for growth kinetics and ability to decrease the pH of alfalfa silage. A selected strain was evaluated for its competitiveness as an inoculant with Enterococcus faecium, an organism used in inoculants, and for its a...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.57.10.3000-3005.1991
更新日期:1991-10-01 00:00:00
abstract::The reporter transposon-based system TnFuZ was used to identify exported proteins of the animal pathogen Corynebacterium pseudotuberculosis. Thirty-four out of 1,500 mutants had detectable alkaline phosphatase (PhoZ) activity. This activity was from 21 C. pseudotuberculosis loci that code for fimbrial and transport su...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00294-06
更新日期:2006-11-01 00:00:00
abstract::The contamination of waterways with fecal material is a persistent threat to public health. Identification of the sources of fecal contamination is a vital component for abatement strategies and for determination of total maximum daily loads. While phenotypic and genotypic techniques have been used to determine potent...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02764-05
更新日期:2006-06-01 00:00:00
abstract::Acropora and Porites corals are important reef builders in the Indo-Pacific and Caribbean. Bacteria associated with mucus produced by Porites spp. and Acropora spp. from Caribbean (Punta Maroma, Mexico) and Indo-Pacific (Hoga and Sampela, Indonesia) reefs were determined. Analysis of pyrosequencing libraries showed th...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.07764-11
更新日期:2012-08-01 00:00:00
abstract::Isolates of the obligately biotrophic fungus Uncinula necator cluster in three distinct genetic groups (groups I, II, and III). We designed PCR primers specific for these groups in order to monitor field populations of U. necator. We used the nucleotide sequences of the gene that encodes eburicol 14alpha-demethylase (...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.65.9.3950-3954.1999
更新日期:1999-09-01 00:00:00
abstract::Pseudomonas fluorescens 2-79 suppresses take-all, a major root disease of wheat caused by Gaeumannomyces graminis var. tritici. The bacteria produce an antibiotic, phenazine-1-carboxylic acid (PCA), and a fluorescent pyoverdin siderophore. Previous studies have established that PCA has an important role in the biologi...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.57.11.3270-3277.1991
更新日期:1991-11-01 00:00:00
abstract::A thermophilic strain (D2) identified as a Bacillus sp. was isolated from an aerobic digestor of swine waste after several months of operation at 55 degrees C. Aerobic thermophilic batch treatment of swine waste inoculated with strain D2 was studied in a 4-liter fixed-bed reactor. Stabilization of the waste was achiev...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.56.4.971-976.1990
更新日期:1990-04-01 00:00:00