Abstract:
:Quantitative assessment of growth of filamentous microorganisms, such as streptomycetes, is generally restricted to determination of dry weight. Here, we describe a straightforward methylene blue-based sorption assay to monitor microbial growth quantitatively, simply, and rapidly. The assay is equally applicable to unicellular and filamentous bacterial and eukaryotic microorganisms.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Fischer M,Sawers RGdoi
10.1128/AEM.00778-13subject
Has Abstractpub_date
2013-07-01 00:00:00pages
4499-502issue
14eissn
0099-2240issn
1098-5336pii
AEM.00778-13journal_volume
79pub_type
杂志文章abstract::Maltose-limited, continuous growth of the hyperthermophile Thermotoga maritima at different temperatures and dilution rates (80 degrees C/0.25 h(-1), 80 degrees C/0.17 h(-1), and 85 degrees C/0.25 h(-1)) showed that transcriptome-wide variation in gene expression within mechanical steady states was minimal compared to...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.71.9.5572-5576.2005
更新日期:2005-09-01 00:00:00
abstract::A toluene-degrading methanogenic consortium enriched from creosote-contaminated aquifer material was maintained on toluene as the sole carbon and energy source for 10 years. The species in the consortium were characterized by using a molecular approach. Total genomic DNA was isolated, and 16S rRNA genes were amplified...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.65.12.5576-5585.1999
更新日期:1999-12-01 00:00:00
abstract::A fragment of about 500 base pairs of the beta-hemolysin gene from Listeria monocytogenes was used to screen different bacterial strains by DNA colony hybridization. The cells in the colonies were lysed by microwaves in the presence of sodium hydroxide. Of 52 different strains of Listeria species screened, only the DN...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.53.9.2256-2259.1987
更新日期:1987-09-01 00:00:00
abstract::The study site located in the Mediterranean Sea was visited eight times in 2005 and 2006 to collect samples from the epipelagic (5 m), mesopelagic (200 m, 600 m), and bathypelagic (1,000 m, 2,000 m) zones. Randomly amplified polymorphic DNA PCR (RAPD-PCR) analysis was used to obtain fingerprints from microbial and vir...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00531-10
更新日期:2010-10-01 00:00:00
abstract::Efficient enrichment of staphylococcal cells displaying specific heterologous affinity ligands on their cell surfaces was demonstrated by using fluorescence-activated cell sorting. Using bacterial surface display of peptide or protein libraries for the purpose of combinatorial protein engineering has previously been i...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.69.9.5328-5335.2003
更新日期:2003-09-01 00:00:00
abstract::Research on the microbial communities that colonize stone monuments may provide a new understanding of stone biodeterioration and microbe-induced carbonate precipitation. This work investigated the seasonal variation of microbial communities in 2016 and 2017, as well as its effects on stone monuments. We determined th...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02680-17
更新日期:2018-03-19 00:00:00
abstract::A gram-negative bacterium which hydrolyzed aryl N-methylcarbamate insecticides was isolated from an agricultural soil which quickly degraded these pesticides. This organism, designated strain ER2, grew on carbofuran as a sole source of carbon and nitrogen with a doubling time of 3 h in a mineral salts medium. The arom...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.59.10.3339-3349.1993
更新日期:1993-10-01 00:00:00
abstract::With the aim to extend the presently available inducible gene expression systems for lactobacilli, we have isolated a thermoinducible promoter-repressor cassette from the temperate Lactobacillus casei phage phiFSW-TI in Escherichia coli. The phiFSW-TI promoter fragment was abutted to the plasmid-borne promoterless bet...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.68.8.4132-4135.2002
更新日期:2002-08-01 00:00:00
abstract::The ionic and nonionic surfactants sodium dodecyl sulfate and Triton X-100, respectively, eluted two viruses, phi X174 and PRD1, which were adsorbed to the ionic and nonionic binding membranes cationic polysulfone and nitrocellulose, respectively. Results indicated that complete elution was readily achieved only when ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.62.9.3470-3473.1996
更新日期:1996-09-01 00:00:00
abstract::Eukaryotes may influence pollutant degradation processes in groundwater ecosystems by activities such as predation on bacteria and recycling of nutrients. Culture-independent community profiling and phylogenetic analysis of 18S rRNA gene fragments, as well as culturing, were employed to obtain insight into the sedimen...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02820-07
更新日期:2008-07-01 00:00:00
abstract::Tannins are a diverse group of plant-produced, polyphenolic compounds with metal-chelating and antimicrobial properties that are prevalent in many soils. Using transcriptomics, we determined that tannic acid, a form of hydrolysable tannin, broadly affects the expression of genes involved in iron and zinc homeostases, ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.03101-12
更新日期:2013-05-01 00:00:00
abstract::A highly virulent Serratia proteamaculans strain, AGR96X, exhibiting specific pathogenicity against larvae of the New Zealand grass grub (Costelytra giveni; Coleoptera: Scarabaeidae) and the New Zealand manuka beetle (Pyronota festiva and P. setosa; Coleoptera: Scarabaeidae), was isolated from a diseased grass grub la...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02739-17
更新日期:2018-05-01 00:00:00
abstract::The well-established killing of bacteria by copper surfaces, also called contact killing, is currently believed to be a combined effect of bacterial contact with the copper surface and the dissolution of copper, resulting in lethal bacterial damage. Iron can similarly be released in ionic form from iron surfaces and w...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01725-15
更新日期:2015-09-01 00:00:00
abstract::The objective of the present study was to develop a mathematical model of pathogenic bacterial inactivation kinetics in a gastric environment in order to further understand a part of the infectious dose-response mechanism. The major bacterial pathogens Listeria monocytogenes, Escherichia coli O157:H7, and Salmonella s...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02139-10
更新日期:2011-02-01 00:00:00
abstract::Bioconversion of alpha-damascone (compound 1) was studied with four strains of Botrytis cinerea in grape must (pH 3.2). As biotransformation products of compound 1, 3-oxo-alpha-damascone, cis- and trans-3-hydroxy-alpha-damascone, gamma-damascenone, 3-oxo-8, 9-dihydro-alpha-damascone, and cis- and trans-3-hydroxy-8,9-d...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.57.1.15-18.1991
更新日期:1991-01-01 00:00:00
abstract::DNA and peptide nucleic acid (PNA) molecular beacons were successfully used to detect rRNA in solution. In addition, PNA molecular beacon hybridizations were found to be useful for the quantification of rRNA: hybridization signals increased in a linear fashion with the 16S rRNA concentrations used in this experiment (...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.69.9.5673-5678.2003
更新日期:2003-09-01 00:00:00
abstract::We have assembled a collection of 13 psychrophilic ligA alleles that can serve as genetic elements for engineering mesophiles to a temperature-sensitive (TS) phenotype. When these ligA alleles were substituted into Francisella novicida, they conferred a TS phenotype with restrictive temperatures between 33 and 39°C. W...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.03890-15
更新日期:2016-01-15 00:00:00
abstract::To gain a predictive understanding of the interspecies interactions within microbial communities that govern community function, the genomic complement of every member population must be determined. Although metagenomic sequencing has enabled the de novo reconstruction of some microbial genomes from environmental comm...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02274-15
更新日期:2015-10-23 00:00:00
abstract::The adaptation of Lactobacillus sakei to a meat environment is reflected in its metabolic potential. For instance, the ability to utilize arginine through the arginine deiminase (ADI) pathway, resulting in additional ATP, represents a competitive benefit. In L. sakei CTC 494, the arc operon (arcABCTDR) shows the same ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.07724-11
更新日期:2012-07-01 00:00:00
abstract::Azospirillum spp. were shown to utilize both straw and xylan, a major component of straw, for growth with an adequate combined N supply and also under N-limiting conditions. For most strains examined, a semisolid agar medium was satisfactory, but several strains appeared to be capable of slow metabolism of the agar. S...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.49.2.423-428.1985
更新日期:1985-02-01 00:00:00
abstract::The effects of different organic substrates on the abilities of anaerobic sediment enrichments to reductively dechlorinate polychlorinated biphenyls (PCBs) were studied. Sediments collected from a site previously contaminated with PCBs were dosed with additional PCBs (Aroclor 1242; approximately 300 ppm [300 mug/g], s...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.56.9.2612-2617.1990
更新日期:1990-09-01 00:00:00
abstract::Unspecific peroxygenases (UPOs) constitute a new family of fungal heme-thiolate enzymes in which there is high biotechnological interest. Although several thousand genes encoding hypothetical UPO-type proteins have been identified in sequenced fungal genomes and other databases, only a few UPO enzymes have been experi...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02899-19
更新日期:2020-03-18 00:00:00
abstract::Bacterioplankton numbers, biomasses, and productivities, as well as chlorophyll a concentrations and phytoplankton productivities, were assayed from 1 March 1984 to 12 August 1985 through a 250-m-deep seawater column in Howe Sound, a temperate fjord-sound on the southern coast of British Columbia, Canada. Primary prod...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.53.6.1277-1285.1987
更新日期:1987-06-01 00:00:00
abstract::Current models suggest that (i) filamentous bacteria are protected against predation by nanoflagellates, (ii) prey size is positively correlated with prey-predator contact probability, and (iii) contact probability is mainly responsible for size-selective predation by interception-feeding flagellates. We used five str...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.70.1.332-339.2004
更新日期:2004-01-01 00:00:00
abstract::We have cloned the homoserine dehydrogenase genes (hom) from the gram-negative obligate methylotrophs Methylobacillus glycogenes ATCC 21276 and ATCC 21371 by complementation of an Escherichia coli homoserine dehydrogenase-deficient mutant. The 4.15-kb DNA fragment cloned from M. glycogenes ATCC 21371 also complemented...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.60.1.111-119.1994
更新日期:1994-01-01 00:00:00
abstract::Certain strains of Enterococcus faecium and Enterococcus faecalis contribute beneficially to animal health and food production, while others are associated with nosocomial infections. To determine whether there are structural and functional genomic features that are distinct between nonclinical (NC) and clinical (CL) ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.03108-13
更新日期:2014-01-01 00:00:00
abstract::The discovery of a letter intentionally filled with dried Bacillus anthracis spores in the office of a United States senator prompted the collection and quarantine of all mail in congressional buildings. This mail was subsequently searched for additional intentionally contaminated letters. A microbiological sampling s...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00940-06
更新日期:2006-08-01 00:00:00
abstract::The reliable detection of airborne biological threat agents depends on several factors, including the performance criteria of the detector and its operational environment. One step in improving the detector's performance is to increase our knowledge of the biological aerosol background in potential operational environ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.07212-11
更新日期:2012-03-01 00:00:00
abstract::The pathogenic oomycete Aphanomyces invadans is the primary etiological agent in ulcerative mycosis, an ulcerative skin disease caused by a fungus-like agent of wild and cultured fish. We developed sensitive PCR and fluorescent peptide nucleic acid in situ hybridization (FISH) assays to detect A. invadans. Laboratory-...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.72.2.1551-1557.2006
更新日期:2006-02-01 00:00:00
abstract::There is growing evidence that anthropogenic sources of antibiotics and antimicrobial-resistant bacteria can spill over into natural ecosystems, raising questions about the role wild animals play in the emergence, maintenance, and dispersal of antibiotic resistance genes. In particular, we lack an understanding of how...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02136-18
更新日期:2018-12-13 00:00:00