Abstract:
:Cryptosporidium parvum is an apicomplexan parasite that infects humans and ruminants. C. parvum isolated from cattle in northeastern Turkey and in Israel was genotyped using multiple polymorphic genetic markers, and the two populations were compared to assess the effect of cattle husbandry on the parasite's population structure. Dairy herds in Israel are permanently confined with essentially no opportunity for direct herd-to-herd transmission, whereas in Turkey there are more opportunities for transmission as animals range over wider areas and are frequently traded. A total of 76 C. parvum isolates from 16 locations in Israel and seven farms in the Kars region in northeastern Turkey were genotyped using 16 mini- and microsatellite markers. Significantly, in both countries distinct multilocus genotypes confined to individual farms were detected. The number of genotypes per farm was higher and mixed isolates were more frequent in Turkey than in Israel. As expected from the presence of distinct multilocus genotypes in individual herds, linkage disequilibrium among loci was detected in Israel. Together, these observations show that genetically distinct populations of C. parvum can emerge within a group of hosts in a relatively short time. This may explain the frequent detection of host-specific genotypes with unknown taxonomic status in surface water and the existence of geographically restricted C. hominis genotypes in humans.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Tanriverdi S,Markovics A,Arslan MO,Itik A,Shkap V,Widmer Gdoi
10.1128/AEM.72.4.2507-2513.2006subject
Has Abstractpub_date
2006-04-01 00:00:00pages
2507-13issue
4eissn
0099-2240issn
1098-5336pii
72/4/2507journal_volume
72pub_type
杂志文章abstract::Ammonia monooxygenase of Nitrosomonas europaea catalyzes the oxidation of alkanes (up to C(8)) to alcohols and alkenes (up to C(5)) to epoxides and alcohols in the presence of ammonium ions. Straight-chain, N-terminal alkynes (up to C(10)) all exhibited a time-dependent inhibition of ammonia oxidation without effects ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.54.12.3187-3190.1988
更新日期:1988-12-01 00:00:00
abstract::Mesophilic and psychrotrophic populations from refrigerated meat were identified in this study, and the spoilage potential of microbial isolates in packaged beef was evaluated by analyzing the release of volatile organic compounds (VOC) by gas chromatography-mass spectrometry (GC/MS). Fifty mesophilic and twenty-nine ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02762-08
更新日期:2009-04-01 00:00:00
abstract::Microscopic eukaryotes are known to have important ecosystem functions, but their diversity in most environments remains vastly unexplored. Here we analyzed an 18S rRNA gene library from a subsurface iron- and sulfur-oxidizing microbial community growing in highly acidic (pH < 0.9) runoff within the Richmond Mine at I...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02500-08
更新日期:2009-04-01 00:00:00
abstract::Few techniques are currently available for quantifying specific prokaryotic taxa in environmental samples. Quantification of specific genotypes has relied mainly on oligonucleotide hybridization to extracted rRNA or intact rRNA in whole cells. However, low abundance and cellular rRNA content limit the application of t...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.66.11.4605-4614.2000
更新日期:2000-11-01 00:00:00
abstract::The type III secretion system (T3SS) is a specialized secretion apparatus that is commonly used by many plant and animal pathogenic bacteria to deliver proteins, termed effectors, to the interior of the host cells. These effectors suppress host defenses and interfere with signal transduction pathways to promote infect...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02770-16
更新日期:2017-02-15 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
pub_type: 杂志文章
doi:10.1128/AEM.39.6.1123-1128.1980
更新日期:1980-06-01 00:00:00
abstract::Bacillus thuringiensis produces large amounts of various pesticidal proteins during the stationary phase. In order to achieve a high yield and form crystals, some pesticidal proteins require the presence of other proteins. Helper protein P20 is required for efficient production of both the Cyt1A and Cry11A crystal pro...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.67.12.5362-5369.2001
更新日期:2001-12-01 00:00:00
abstract::Epilithic bacteria were isolated nonselectively from riverbed stones and examined by gel zymography for their ability to produce alkylsulfatase (AS) enzymes and thus to metabolize alkyl sulfate surfactants such as sodium dodecyl sulfate. The percentages of AS+ isolates from stone epilithon at five sites from the sourc...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.54.2.555-560.1988
更新日期:1988-02-01 00:00:00
abstract::Searles Lake occupies a closed basin harboring salt-saturated, alkaline brines that have exceptionally high concentrations of arsenic oxyanions. Strain SLAS-1(T) was previously isolated from Searles Lake (R. S. Oremland, T. R. Kulp, J. Switzer Blum, S. E. Hoeft, S. Baesman, L. G. Miller, and J. F. Stolz, Science 308:1...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02614-08
更新日期:2009-04-01 00:00:00
abstract::Yarrowia lipolytica produces brown extracellular pigments that correlate with tyrosine catabolism. During tyrosine depletion, the yeast accumulated homogentisic acid, p-hydroxyphenylethanol, and p-hydroxyphenylacetic acid in the medium. Homogentisic acid accumulated under all aeration conditions tested, but its concen...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.67.8.3463-3468.2001
更新日期:2001-08-01 00:00:00
abstract::Bacterial Halanaerobium strains become the dominant persisting microbial community member in produced fluids across geographically distinct hydraulically fractured shales. Halanaerobium is believed to be inadvertently introduced into this environment during the drilling and fracturing process and must therefore tolera...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00018-19
更新日期:2019-05-30 00:00:00
abstract::A homolog of the clpC ATPase gene was identified in the genome of Bifidobacterium breve UCC 2003. Since this gene is very well conserved among eubacteria, we employed a PCR-based approach using primers based on highly conserved regions of ClpC proteins in order to identify homologous genes in other bifidobacterial spe...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.71.10.6282-6291.2005
更新日期:2005-10-01 00:00:00
abstract::[This corrects the article on p. 662 in vol. 45.]. ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.45.6.1964-1964.1983
更新日期:1983-06-01 00:00:00
abstract::The abundance of quorum quenching (QQ) activity was evaluated in cultivable bacteria obtained from oceanic and estuarine seawater and compared with the frequency of QQ enzyme sequences in the available marine metagenomic collections. The possible role of the high QQ activity found among marine bacteria is discussed. ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01266-12
更新日期:2012-09-01 00:00:00
abstract::Histological observations were made on the penetration of hyphae of Rhizopus oligosporus into soybean cotyledons in tempeh, an Indonesian soybean food. Hyphal penetrations averaged one per 1,400 mum (+/-390 mum) on the curved (outer) cotyledon surface and one per 1,010 mum (+/-340 mum) on the flat (inner) one. Hyphae ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.32.2.284-287.1976
更新日期:1976-08-01 00:00:00
abstract::We report here the cloning and sequencing of the gene for proline dehydrogenase (putA) of Bradyrhizobium japonicum. An open reading frame coding for 1,016 amino acids was identified. The B. japonicum gene codes for a bifunctional protein with proline dehydrogenase and pyrroline-5-carboxylate (P5C) dehydrogenase activi...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.62.1.221-229.1996
更新日期:1996-01-01 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
pub_type: 杂志文章
doi:10.1128/AEM.01747-10
更新日期:2010-11-01 00:00:00
abstract::Iron (Fe) is one of the most important micronutrients for most life forms on earth. While abundant in soil, Fe bioavailability in oxic soil is very low. Under environmental conditions, bacteria need to acquire sufficient Fe to sustain growth while limiting the energy cost of siderophore synthesis. Biofilm formation mi...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00944-20
更新日期:2020-10-28 00:00:00
abstract::DNA microarray analysis showed that yfiD, yggB, and yggE genes were up-regulated when superoxide dismutase (SOD)-deficient Escherichia coli IM303 (I4) was cultivated under the oxidative stress generated by photoexcited TiO(2), and pYFD, pYGB, and pYGE were constructed by inserting the respective genes into a pUC 19 ve...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.71.5.2762-2765.2005
更新日期:2005-05-01 00:00:00
abstract::Fecal coliforms and enterococci are indicator organisms used worldwide to monitor water quality. These bacteria are used in microbial source tracking (MST) studies, which attempt to assess the contribution of various host species to fecal pollution in water. Ideally, all strains of a given indicator organism (IO) woul...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.71.6.3041-3048.2005
更新日期:2005-06-01 00:00:00
abstract::Cydia pomonella granulovirus (CpGV) is an important biocontrol agent for the codling moth (CM) in organic and integrated apple production worldwide. Previously, Z chromosome-linked dominant resistance in at least 38 CM field populations in Europe was reported, threatening organic apple production. Growers responded by...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02330-16
更新日期:2016-12-30 00:00:00
abstract::Two types of endosymbiotic bacteria were identified in the gastrodermis of the marine invertebrate Xenoturbella bocki (Xenoturbellida, Bilateria). While previously described Chlamydia-like endosymbionts were rare, Gammaproteobacteria distantly related to other endosymbionts and pathogens were abundant. The endosymbion...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01092-09
更新日期:2010-04-01 00:00:00
abstract::The distribution, architecture, and conjugal capacity of nisin-sucrose elements in wild-type Lactococcus lactis strains were studied. Element architecture was analyzed with the aid of hybridizations to different probes derived from the nisin-sucrose transposon Tn5276 of L. lactis NIZO R5, including its left and right ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.60.6.1798-1804.1994
更新日期:1994-06-01 00:00:00
abstract::The intracellular pathogens Legionella micdadei and Legionella pneumophila are the two most common Legionella species that cause Legionnaires' disease. Intracellular replication within pulmonary cells is the hallmark of Legionnaires' disease. In the environment, legionellae are parasites of protozoans, and intracellul...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.64.9.3134-3139.1998
更新日期:1998-09-01 00:00:00
abstract::Fomites are known to play a role in the transmission of pathogens. Quantitative analysis of the parameters that affect sample recovery efficiency (SRE) at the limit of detection of viruses on fomites will aid in improving quantitative microbial risk assessment (QMRA) and infection control. The variability in SRE as a ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01370-12
更新日期:2012-11-01 00:00:00
abstract::Plant polysaccharide breakdown by microbes in the rumen is fundamental to digestion in ruminant livestock. Bacterial species belonging to the rumen genera Butyrivibrio and Pseudobutyrivibrio are important degraders and utilizers of lignocellulosic plant material. These bacteria degrade polysaccharides and ferment the ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01993-19
更新日期:2019-12-13 00:00:00
abstract::Vibrio parahaemolyticus is indigenous to coastal environments and a frequent cause of seafood-borne gastroenteritis in the United States, primarily due to raw-oyster consumption. Previous seasonal-cycle studies of V. parahaemolyticus have identified water temperature as the strongest environmental predictor. Salinity ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01700-07
更新日期:2007-12-01 00:00:00
abstract::A total of 896 samples of retail fresh meats and poultry was assayed for Escherichia coli serogroup O157:H7 by a hydrophobic grid membrane filter-immunoblot procedure developed specifically to isolate the organism from foods. The procedure involves several steps, including selective enrichment, filtration of enrichmen...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.53.10.2394-2396.1987
更新日期:1987-10-01 00:00:00
abstract::During malolactic fermentation in wine by Oenococcus oeni, the degradation of citric acid was delayed compared to the degradation of malic acid. The maximum concentration of diacetyl, an intermediary compound in the citric acid metabolism with a buttery or nutty flavor, coincided with the exhaustion of malic acid in t...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.65.2.740-745.1999
更新日期:1999-02-01 00:00:00
abstract::Lantibiotics, such as nisin and subtilin, are lanthionine-containing peptides that exhibit antimicrobial as well as pheromone-like autoinducing activity. Autoinduction is specific for each lantibiotic, and reporter systems for nisin and subtilin autoinduction are available. In this report, we used the previously repor...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01962-10
更新日期:2011-03-01 00:00:00