Abstract:
:An examination was made of various sites along the length of the swine large intestine, using strictly anaerobic culture methods. Sites were separated by differential washing into fractions described as lumenal content, lumenal surface layer, and intestinal wall tissue. Direct microscopic clump counts averaged 13.3 x 10 organisms per g (dry weight) of material in the lumenal content, 14.0 x 10 in the surface layer, and 5.1 x 10 in the intestinal wall tissue. Both direct microscopic counts and viable culture counts were higher from the lumenal content and surface layer than from the intestinal tissue at all sites sampled in the intestine. Cultural counts averaged 56.2% of the direct microscopic counts in lumenal content and surface layer and 20.2% in intestinal tissue. Over 90% of the bacteria isolated were gram positive and consisted mainly of gram-positive cocci, lactobacilli, eubacteria, and clostridia. Of 192 isolates recovered, only 124 could be assigned to recognized species.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Russell EGdoi
10.1128/AEM.37.2.187-193.1979keywords:
subject
Has Abstractpub_date
1979-02-01 00:00:00pages
187-93issue
2eissn
0099-2240issn
1098-5336journal_volume
37pub_type
杂志文章abstract::α-Amylase-binding streptococci (ABS) are a heterogeneous group of commensal oral bacterial species that comprise a significant proportion of dental plaque microfloras. Salivary α-amylase, one of the most abundant proteins in human saliva, binds to the surface of these bacteria via specific surface-exposed α-amylase-bi...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章,评审
doi:10.1128/AEM.02581-12
更新日期:2013-01-01 00:00:00
abstract::Contamination of food during processing is recognized as a main transmission route of Listeria monocytogenes To prevent microbial contamination, biocides are widely applied as disinfectants in food processing plants. However, there are concerns about the development of antimicrobial resistance in foodborne pathogens d...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01253-19
更新日期:2019-10-01 00:00:00
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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
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.33.6.1244-1246.1977
更新日期:1977-06-01 00:00:00
abstract::Decontamination treatments of burning and biocide application, alone and in combination with tillage, were evaluated for their ability to reduce populations of bacteria applied to the leaves of plants in field plots. In addition, the effects of these control methods on indigenous leaf and soil bacteria and fungi were ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.58.4.1207-1214.1992
更新日期:1992-04-01 00:00:00
abstract::The deposition of manganese in a water distribution system with manganese-related "dirty water" problems was studied over a 1-year period. Four monitoring laboratories with Robbins biofilm sampling devices fitted to the water mains were used to correlate the relationship among manganese deposition, the level of mangan...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.56.3.628-639.1990
更新日期:1990-03-01 00:00:00
abstract::The antifungal protein AFP from Aspergillus giganteus is highly effective in restricting the growth of major human- and plant-pathogenic filamentous fungi. However, a fundamental prerequisite for the use of AFP as an antifungal drug is a complete understanding of its mode of action. In this study, we performed several...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02497-06
更新日期:2007-04-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.36.2.392-393.1978
更新日期:1978-08-01 00:00:00
abstract::"Candidatus Accumulibacter" is the dominant polyphosphate-accumulating organism (PAO) in denitrifying phosphorus removal (DPR) systems. In order to investigate the community structure and clade morphotypes of "Candidatus Accumulibacter" in DPR systems through flow cytometry (FCM), denitrifying phosphorus removal of al...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02943-18
更新日期:2019-04-18 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2002-01-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02749-19
更新日期:2020-02-18 00:00:00
abstract::We have previously reported that an acid tolerance response (ATR) can be induced in Streptococcus macedonicus cells at mid-log phase after autoacidification, transient exposure to acidic pH, or acid habituation, as well as at stationary phase. Here, we compared the transcriptional profiles of these epigenetic phenotyp...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00315-08
更新日期:2008-10-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.72.1.319-326.2006
更新日期:2006-01-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.66.9.3850-3855.2000
更新日期:2000-09-01 00:00:00
abstract::Low concentrations of furfural are formed as a side product during the dilute acid hydrolysis of hemicellulose. Growth is inhibited by exposure to furfural but resumes after the complete reduction of furfural to the less toxic furfuryl alcohol. Growth-based selection was used to isolate a furfural-resistant mutant of ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00567-09
更新日期:2009-07-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.32.2.206-208.1976
更新日期:1976-08-01 00:00:00
abstract::Gene clusters for biosynthesis of the fungal polyketides hypothemycin and radicicol from Hypomyces subiculosus and Pochonia chlamydosporia, respectively, were sequenced. Both clusters encode a reducing polyketide synthase (PKS) and a nonreducing PKS like those in the zearalenone cluster of Gibberella zeae, plus enzyme...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00478-08
更新日期:2008-08-01 00:00:00
abstract::During the summer of 1981, 3,887 sucrose-negative vibrios were isolated from seawater, sediment, plankton, and animal samples taken from 80 sites from Miami, Fla., to Portland, Maine. Of these, 4.2% were able to ferment lactose. The lactose-positive strains isolated from the various samples correlated positively with ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.45.3.985-998.1983
更新日期:1983-03-01 00:00:00
abstract::The susceptibility of the Iberian ibex (Capra pyrenaica) to Mycoplasma conjunctivae ocular infection and the changes in their interaction over time were studied in terms of clinical outcome, molecular detection, and IgG immune response in a captive population that underwent a severe infectious keratoconjunctivitis (IK...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00690-17
更新日期:2017-07-17 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
pub_type: 杂志文章
doi:10.1128/AEM.00249-12
更新日期:2012-07-01 00:00:00
abstract::High numbers (10(7) to 10(10) cells per g [dry weight]) of heterotrophic, gram-negative, rod-shaped, non-sporeforming, aerobic, thermophilic bacteria related to the genus Thermus were isolated from thermogenic composts at temperatures between 65 and 82 degrees C. These bacteria were present in different types of waste...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.62.5.1723-1727.1996
更新日期:1996-05-01 00:00:00
abstract::Lactobacillus isolates were identified by PCR amplification and sequencing of the region between the 16S and 23S rRNA genes (spacer region). The sequences obtained from the isolates were compared to those of reference strains held in GenBank. A similarity of 97.5% or greater was considered to provide identification. T...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.65.9.4264-4267.1999
更新日期:1999-09-01 00:00:00
abstract::A xylose reductase (XR) gene was identified from the Neurospora crassa whole-genome sequence, expressed heterologously in Escherichia coli, and purified as a His6-tagged fusion in high yield. This enzyme is one of the most active XRs thus far characterized and may be used for the in vitro production of xylitol. ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.71.3.1642-1647.2005
更新日期:2005-03-01 00:00:00
abstract::Proteolytic but chitinase-deficient microbial cultures were isolated from shrimp shell waste and characterized. The most efficient isolate was found to be a mixed culture consisting of two Bacillus licheniformis strains, which were first determined microscopically and physiologically. Molecular characterization was ca...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00938-06
更新日期:2006-12-01 00:00:00
abstract::Pathogens may reach agricultural soils through application of animal manure and thereby pose a risk of contaminating crops as well as surface and groundwater. Treatment and handling of manure for improved nutrient and odor management may also influence the amount and fate of manure-borne pathogens in the soil. A study...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02506-12
更新日期:2013-01-01 00:00:00
abstract::Sequence analysis of the five genes (gutRMCBA) downstream from the previously described sorbitol-6-phosphate dehydrogenase-encoding Lactobacillus casei gutF gene revealed that they constitute a sorbitol (glucitol) utilization operon. The gutRM genes encode putative regulators, while the gutCBA genes encode the EIIC, E...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00230-08
更新日期:2008-09-01 00:00:00
abstract::beta-D-Galactosidase (EC 3.2.1.23) was extracted from Streptococcus thermophilus grown in deproteinized cheese whey. Cultural conditions optimum for maximum enzyme production were pH 7.0, 40 degrees C, and 24 h. Proteose peptone (2.0%, wt/vol) and corn steep liquor (2.8%, wt/vol) were highly stimulatory, increasing th...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.34.2.185-188.1977
更新日期:1977-08-01 00:00:00
abstract::The beta-agarase C gene (agaC) of a marine bacterium, Vibrio sp. strain PO-303, consisted of 1,437 bp encoding 478 amino acid residues. beta-Agarase C was identified as the first beta-agarase that cannot hydrolyze neoagarooctaose and smaller neoagarooligosaccharides and was assigned to a novel glycoside hydrolase fami...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00935-06
更新日期:2006-09-01 00:00:00
abstract::The composition of the rhizosphere microbiome is a result of interactions between plant roots, soil, and environmental conditions. The impact of genetic variation in plant species on the composition of the root-associated microbiota remains poorly understood. This study assessed the abundances and structures of nitrog...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01778-14
更新日期:2014-10-01 00:00:00
abstract::The addition of positively charged colloidal materials to the growth medium markedly increased the concentration of cellulase enzymes produced by Trichoderma reesei Rut-C30. Filter paper activities of up to 4 and 13 IU/ml have been achieved by the addition of colloidal materials, using 3% lactose and 3% cellulose, res...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.49.4.934-938.1985
更新日期:1985-04-01 00:00:00