Role of the arginine deiminase system in protecting oral bacteria and an enzymatic basis for acid tolerance.

abstract：:Lactobacillus iners is often associated with vaginal dysbiosis and bacterial vaginosis (BV), which are risk factors for adverse gynecological and obstetric outcomes. To discover natural inhibitors of L. iners, cell-free culture supernatants (CFSs) from 77 vaginal human Lactobacillus strains and 1 human intestinal stra...

journal_title：Applied and environmental microbiology

authors： Nilsen T,Swedek I,Lagenaur LA,Parks TP

更新日期：2020-10-01 00:00:00

abstract：:Two types of novel aromatic copolyesters were synthesized from 11-phenoxyundecanoic acid (11-POU) as the sole carbon source and the cosubstrates 11-POU and octanoate, respectively, by isolated Pseudomonas putida BM01 that is known to accumulate high concentrations of medium-chain-length polyesters. Insoluble 11-POU wa...

journal_title：Applied and environmental microbiology

authors： Song JJ,Yoon SC

更新日期：1996-02-01 00:00:00

abstract：:Excessive NH(3) production in the rumen is a major nutritional inefficiency in ruminant animals. Experiments were undertaken to compare the rates of NH(3) production from different substrates in ruminal fluid in vitro and to assess the role of asaccharolytic bacteria in NH(3) production. Ruminal fluid was taken from f...

journal_title：Applied and environmental microbiology

authors： Eschenlauer SC,McKain N,Walker ND,McEwan NR,Newbold CJ,Wallace RJ

更新日期：2002-10-01 00:00:00

abstract：:Eleven strains of an undescribed species of Clavispora fermented D-xylose directly to ethanol under aerobic conditions. Strain UWO(PS)83-877-1 was grown in a medium containing 2% D-xylose and 0.5% yeast extract, and the following results were obtained: ethanol yield coefficient (ethanol/D-xylose), 0.29 g g (57.4% of t...

journal_title：Applied and environmental microbiology

authors： Nigam JN,Margaritis A,Lachance MA

更新日期：1985-10-01 00:00:00

abstract：:Agmatine, a significant polyamine in bacteria and plants, mostly arises from the decarboxylation of arginine. The functional importance of agmatine in fungi is poorly understood. The metabolism of agmatine and related guanidinium group-containing compounds in Aspergillus niger was explored through growth, metabolite, ...

journal_title：Applied and environmental microbiology

authors： Kumar S,Saragadam T,Punekar NS

更新日期：2015-08-15 00:00:00

abstract：:This study evaluated the influence of parameters relevant for cheese making on histamine formation by Streptococcus thermophilus. Strains possessing a histidine decarboxylase (hdcA) gene represented 6% of the dairy isolates screened. The most histaminogenic, S. thermophilus PRI60, exhibited in skim milk a high basal l...

journal_title：Applied and environmental microbiology

authors： Rossi F,Gardini F,Rizzotti L,La Gioia F,Tabanelli G,Torriani S

更新日期：2011-04-01 00:00:00

abstract：:A bioassay method was developed to measure the average intensity within a UV disinfection reactor. The survival of spores of Bacillus subtilis was determined as a function of UV dose to prepare a standard curve. Spores were added to unknown systems, and the survival rate was used to determine the average intensity. A ...

journal_title：Applied and environmental microbiology

authors： Qualls RG,Johnson JD

更新日期：1983-03-01 00:00:00

abstract：:A model conditional-suicide system to control genetically engineered microorganisms able to degrade substituted benzoates is reported. The system is based on two elements. One element consists of a fusion between the promoter of the Pseudomonas putida TOL plasmid-encoded meta-cleavage pathway operon (P(m)) and the lac...

journal_title：Applied and environmental microbiology

authors： Contreras A,Molin S,Ramos JL

更新日期：1991-05-01 00:00:00

abstract：:Anaerobic degradation of polycyclic aromatic hydrocarbons has been investigated mostly with naphthalene as a model compound. Naphthalene degradation by sulfate-reducing bacteria proceeds via carboxylation to 2-naphthoic acid, formation of a coenzyme A thioester, and subsequent reduction to 5,6,7,8-tetrahydro-2-naphtho...

journal_title：Applied and environmental microbiology

authors： Weyrauch P,Heker I,Zaytsev AV,von Hagen CA,Arnold ME,Golding BT,Meckenstock RU

更新日期：2020-07-20 00:00:00

abstract：:Mycobiota growing on food is often beneficial for the ripening and development of the specific flavor characteristics of the product, but it can also be harmful due to the production of undesirable compounds such as mycotoxins or antibiotics. Some of the fungi most frequently isolated from fermented and cured meat pro...

journal_title：Applied and environmental microbiology

authors： Laich F,Fierro F,Martín JF

更新日期：2002-03-01 00:00:00

abstract：:Wild-type Bacillus subtilis ferments 20 g/liter glucose in 48 h, producing lactate and butanediol, but not ethanol or acetate. To construct an ethanologenic B. subtilis strain, homologous recombination was used to disrupt the native lactate dehydrogenase (LDH) gene (ldh) by chromosomal insertion of the Zymomonas mobil...

journal_title：Applied and environmental microbiology

authors： Romero S,Merino E,Bolívar F,Gosset G,Martinez A

更新日期：2007-08-01 00:00:00

abstract：:Gammaproteobacterial sulfur oxidizers (GSOs), particularly SUP05-related sequences, have been found worldwide in numerous oxygen-deficient marine environments. However, knowledge regarding their abundance, distribution, and ecological role is scarce. In this study, on the basis of phylogenetic analyses of 16S rRNA gen...

journal_title：Applied and environmental microbiology

authors： Glaubitz S,Kießlich K,Meeske C,Labrenz M,Jürgens K

更新日期：2013-04-01 00:00:00

abstract：:The hindguts of lower termites and Cryptocercus cockroaches are home to a distinct community of archaea, bacteria, and protists (primarily parabasalids and some oxymonads). Within a host species, the composition of these hindgut communities appears relatively stable, but the evolutionary and ecological factors structu...

journal_title：Applied and environmental microbiology

authors： Tai V,James ER,Nalepa CA,Scheffrahn RH,Perlman SJ,Keeling PJ

更新日期：2015-02-01 00:00:00

abstract：:A negative enrichment procedure was developed which was capable of isolating Legionella pneumophila directly from seeded air-conditioning cooling tower water onto laboratory media. This procedure was based on an 8-h incubation under conditions that were bactericidal to the indigenous water microflora but merely bacter...

journal_title：Applied and environmental microbiology

authors： Thorpe TC,Miller RD

更新日期：1980-10-01 00:00:00

abstract：:The temperate bacteriophage phiLC3, isolated from Lactococcus lactis subsp. cremoris, has an isometric head and a flexible tail containing 1 major protein and 8 minor proteins. Infection of a permissive L. lactis host strain yields a burst of about 50 phages per infected cell with a latent period of 60 min. A detailed...

journal_title：Applied and environmental microbiology

authors： Lillehaug D,Lindqvist B,Birkeland NK

更新日期：1991-11-01 00:00:00

abstract：:Until recently, Amblyomma maculatum (the Gulf Coast tick) had garnered little attention compared to other species of human-biting ticks in the United States. A. maculatum is now recognized as the principal vector of Rickettsia parkeri, a pathogenic spotted fever group rickettsia (SFGR) that causes an eschar-associated...

journal_title：Applied and environmental microbiology

authors： Paddock CD,Fournier PE,Sumner JW,Goddard J,Elshenawy Y,Metcalfe MG,Loftis AD,Varela-Stokes A

更新日期：2010-05-01 00:00:00

abstract：:Bacteria able to perform dissimilatory nitrate reduction to ammonium were isolated from low-oxygen masses in the Baltic Sea. In liquid media enriched with NO(3) and incubated anaerobically, the NH(4)-producing isolates transformed 25 to 72% of the NO(3) to NH(4). ...

journal_title：Applied and environmental microbiology

authors： Samuelsson MO,Rönner U

更新日期：1982-11-01 00:00:00

abstract：:The ability of phages to specifically interact with and lyse their host bacteria makes them ideal antibacterial agents. The range of applications of bacteriophage can be extended by their immobilization on inert surfaces. A novel method for the oriented immobilization of bacteriophage has been developed. The method wa...

journal_title：Applied and environmental microbiology

authors： Anany H,Chen W,Pelton R,Griffiths MW

更新日期：2011-09-01 00:00:00

abstract：:The consumption of acetate in soils taken from a nutrient gradient in the northern Florida Everglades was studied by stable isotope probing. Bacterial and archaeal 16S rRNA gene clone libraries from eutrophic and oligotrophic soil microcosms strongly suggest that a significant amount of acetate is consumed by syntroph...

journal_title：Applied and environmental microbiology

authors： Chauhan A,Ogram A

更新日期：2006-10-01 00:00:00

abstract：:High-throughput sequencing of the taxonomically informative 16S rRNA gene provides a powerful approach for exploring microbial diversity. Here we compare the performances of two common "benchtop" sequencing platforms, Illumina MiSeq and Ion Torrent Personal Genome Machine (PGM), for bacterial community profiling by 16...

journal_title：Applied and environmental microbiology

authors： Salipante SJ,Kawashima T,Rosenthal C,Hoogestraat DR,Cummings LA,Sengupta DJ,Harkins TT,Cookson BT,Hoffman NG

更新日期：2014-12-01 00:00:00

abstract：:A defined solid and liquid minimal medium, HTM, which contained methionine and cysteine as the sole amino acids, was developed for Listeria monocytogenes. Complex broth-grown L. monocytogenes had to adapt to HTM by inducing amino acid biosyntheis. HTM is the simplest minimal medium available for growth of L. monocytog...

journal_title：Applied and environmental microbiology

authors： Tsai HN,Hodgson DA

更新日期：2003-11-01 00:00:00

abstract：UNLABELLED:The McMurdo Dry Valleys (MCM) of southern Victoria Land, Antarctica, harbor numerous ice-covered bodies of water that provide year-round liquid water oases for isolated food webs dominated by the microbial loop. Single-cell microbial eukaryotes (protists) occupy major trophic positions within this truncated ...

journal_title：Applied and environmental microbiology

authors： Li W,Podar M,Morgan-Kiss RM

更新日期：2016-05-31 00:00:00

abstract：:The MK filter is an electropositively charged filter that can be used to concentrate enteroviruses from large volumes (400 to 1,000 liters) of water. This filter is less expensive than the commonly used 1MDS electropositive filter. In this study, we compared the recovery of poliovirus 1 (PV1) and that of coxsackieviru...

journal_title：Applied and environmental microbiology

authors： Ma JF,Naranjo J,Gerba CP

更新日期：1994-06-01 00:00:00

abstract：:The competitive inhibition of fructokinase by glucose has been proposed as the mechanism by which Zymomonas mobilis preferentially consumes glucose from mixtures of glucose and fructose and accumulates fructose when growing on sucrose. In this study, incorporation of radioactive fructose into biomass was used as a mea...

journal_title：Applied and environmental microbiology

authors： Parker C,Peekhaus N,Zhang X,Conway T

更新日期：1997-09-01 00:00:00

abstract：:Achromobacter spp. are nonfermentative Gram-negative bacilli considered emergent pathogens in cystic fibrosis (CF). Although some cross-transmission events between CF patients have been described, Achromobacter strains were mostly patient specific, suggesting sporadic acquisitions from nonhuman reservoirs. However, so...

journal_title：Applied and environmental microbiology

authors： Dupont C,Jumas-Bilak E,Doisy C,Aujoulat F,Chiron R,Marchandin H

更新日期：2018-11-15 00:00:00

abstract：:The growth of and production of protease, alpha-amylase, alpha-galactosidase, and lipase by Actinomucor taiwanensis in relation to temperature and relative humidity during the preparation of sufu (Chinese cheese) pehtze were investigated. The incubation temperature, humidity, and cultivation time greatly affected the ...

journal_title：Applied and environmental microbiology

authors： Chou CC,Ho FM,Tsai CS

更新日期：1988-03-01 00:00:00

abstract：:Representatives of only four well-characterized bacterial phyla were isolated from a pasture soil by using liquid serial dilution culture. In contrast, members of Acidobacteria, Verrucomicrobia, and Gemmatimonadetes and of other poorly represented bacterial lineages were isolated in earlier experiments with solidified...

journal_title：Applied and environmental microbiology

authors： Schoenborn L,Yates PS,Grinton BE,Hugenholtz P,Janssen PH

更新日期：2004-07-01 00:00:00

abstract：:Rotavirus SA11, suspended in tryptose phosphate broth with 2.5 mg of rhodamine B per ml, was aerosolized (Collison nebulizer) into a rotating drum, and the aerosols were held at 20 +/- 1 degree C with the desired relative humidity (RH). An all-glass impinger with tryptose phosphate broth was used to collect 1-min (5.6...

journal_title：Applied and environmental microbiology

authors： Sattar SA,Ijaz MK,Johnson-Lussenburg CM,Springthorpe VS

更新日期：1984-04-01 00:00:00

abstract：:Although at least 13 antigenically distinct serotypes of Rhizobium leguminosarum bv. trifolii exist in an Abiqua silty clay loam soil, one serotype, AS6, occupies >/=50% of the root nodules formed on field-grown subclover and between 33 and 78% of the nodules formed on five annual clover species grown in the same soil...

journal_title：Applied and environmental microbiology

authors： Leung K,Yap K,Dashti N,Bottomley PJ

更新日期：1994-02-01 00:00:00

abstract：:Salmonella typhimurium accumulates glutamate in response to osmotic stress. Cells in aerobic exponential growth have an intracellular pool of approximately 125 nmol of glutamate mg of protein-1. When cells were grown in minimal medium with 500 mM NaCl, KCl, or sucrose, 290 to 430 nmol of glutamate was found to accumul...

journal_title：Applied and environmental microbiology

authors： Botsford JL,Alvarez M,Hernandez R,Nichols R

更新日期：1994-07-01 00:00:00