Clostridium acetobutylicum Protoplast Formation and Regeneration.

abstract：:Households provide environments that encourage the formation of microbial communities, often as biofilms. Such biofilms constitute potential reservoirs for pathogens, particularly for immune-compromised individuals. One household environment that potentially accumulates microbial biofilms is that provided by vinyl sho...

journal_title：Applied and environmental microbiology

authors： Kelley ST,Theisen U,Angenent LT,St Amand A,Pace NR

更新日期：2004-07-01 00:00:00

abstract：UNLABELLED:Clostridium perfringens type A is a common source of foodborne illness (FBI) in humans. Vegetative cells sporulate in the small intestinal tract and produce the major pathogenic factor C. perfringens enterotoxin. Although sporulation plays a critical role in the pathogenesis of FBI, the mechanisms inducing s...

journal_title：Applied and environmental microbiology

authors： Yasugi M,Okuzaki D,Kuwana R,Takamatsu H,Fujita M,Sarker MR,Miyake M

更新日期：2016-05-02 00:00:00

abstract：:Vibrio parahaemolyticus and Vibrio vulnificus are naturally occurring estuarine bacteria and are the leading causes of seafood-associated infections and mortality in the United States. Though multiple-antibiotic-resistant V. parahaemolyticus and V. vulnificus strains have been reported, resistance patterns in vibrios ...

journal_title：Applied and environmental microbiology

authors： Elmahdi S,Parveen S,Ossai S,DaSilva LV,Jahncke M,Bowers J,Jacobs J

更新日期：2018-01-17 00:00:00

abstract：:Addition of 2 mg of Pb2+/g of soil concident with or after amendment with starch or maltose resulted in 75 and 50% decreases in net synthesis of amylase and alpha-glucosidase, respectively. Invertase synthesis in sucrose-amended soil was transiently reduced after Pb2+ addition. Amylase activity was several times less ...

journal_title：Applied and environmental microbiology

authors： Cole MA

更新日期：1977-02-01 00:00:00

abstract：:Severe intoxications caused by the Bacillus cereus emetic toxin cereulide can hardly be prevented due to the ubiquitous distribution and heat resistance of spores and the extreme thermal and chemical stability of cereulide. It would therefore be desirable to inhibit cereulide synthesis during food manufacturing proces...

journal_title：Applied and environmental microbiology

authors： Frenzel E,Letzel T,Scherer S,Ehling-Schulz M

更新日期：2011-02-01 00:00:00

abstract：:Preinfection development in Colletotrichum spp. exhibits three morphologies (conidia, germ tubes, and appressoria) and is directed by a complex interplay of environmental signals. Germ tube morphogenesis for Colletotrichum trifolii and the related fungus Colletotrichum gloeosporioides f. sp. aeschynomene was shown to ...

journal_title：Applied and environmental microbiology

authors： Buhr TL,Dickman MB

更新日期：1997-06-01 00:00:00

abstract：:Escherichia fergusonii is an emerging pathogen that has been isolated from a wide range of infections in animals and humans. Primers targeting specific genes, including yliE (encoding a conserved hypothetical protein of the cellulose synthase and regulator of cellulose synthase island), EFER_1569 (encoding a hypotheti...

journal_title：Applied and environmental microbiology

authors： Simmons K,Rempel H,Block G,Forgetta V,Vaillancourt R Jr,Malouin F,Topp E,Delaquis P,Diarra MS

更新日期：2014-03-01 00:00:00

abstract：:A gene, pfa1, encoding an autotransporter was cloned from a pathogenic Pseudomonas fluorescens strain, TSS, isolated from diseased fish. The expression of pfa1 is enhanced during infection and is regulated by growth phase and growth conditions. Mutation of pfa1 significantly attenuates the overall bacterial virulence ...

journal_title：Applied and environmental microbiology

authors： Hu YH,Liu CS,Hou JH,Sun L

更新日期：2009-07-01 00:00:00

abstract：:Mineral soil-based inoculants of Rhizobium meliloti and Rhizobium phaseoli survived better at 4 degrees C than at higher temperatures, but ca. 15% of the cells were viable at 37 degrees C after 27 days. Soil-based inoculants of R. meliloti, R. phaseoli, Rhizobium japonicum, and a cowpea Rhizobium sp. applied to seeds ...

journal_title：Applied and environmental microbiology

authors： Chao WL,Alexander M

更新日期：1984-01-01 00:00:00

abstract：:Pili (fimbriae) were observed on cells of each of the five strains of Bradyrhizobium japonicum and the one strain of Rhizobium trifolii examined. Pili on B. japonicum were about 4 nm in diameter and polarly expressed. Piliated cells were estimated by transmission electron microscopy and hydrophobic attachment to polys...

journal_title：Applied and environmental microbiology

authors： Vesper SJ,Bauer WD

更新日期：1986-07-01 00:00:00

abstract：:Two new nickel-resistant strains of Alcaligenes species were selected from a large number (about 400) of strains isolated from ecosystems polluted by heavy metals and were studied on the physiological and molecular level. Alcaligenes xylosoxydans 31A is a heterotrophic bacterium, and Alcaligenes eutrophus KTO2 is an a...

journal_title：Applied and environmental microbiology

authors： Schmidt T,Stoppel RD,Schlegel HG

更新日期：1991-11-01 00:00:00

abstract：:The extensive use of antibiotics in hospitals and in the animal breeding industry has promoted antibiotic resistance in bacteria, which resulted in the emergence of a large number of antibiotic resistance genes in the intestinal tract of human and farmed animals. Genetic exchange of resistance genes between the two ec...

journal_title：Applied and environmental microbiology

authors： Wang C,Song Y,Tang N,Zhang G,Leclercq SO,Feng J

更新日期：2020-12-11 00:00:00

abstract：:Representatives of Actinobacteria were isolated from the marine sponge Halichondria panicea collected from the Baltic Sea (Germany). For the first time, a comprehensive investigation was performed with regard to phylogenetic strain identification, secondary metabolite profiling, bioactivity determination, and genetic ...

journal_title：Applied and environmental microbiology

authors： Schneemann I,Nagel K,Kajahn I,Labes A,Wiese J,Imhoff JF

更新日期：2010-06-01 00:00:00

abstract：:Specific Saccharomyces cerevisiae strains were recently found to be capable of efficiently utilizing inulin, but genetic mechanisms of inulin hydrolysis in yeast remain unknown. Here we report functional characteristics of invertase SUC2 from strain JZ1C and demonstrate that SUC2 is the key enzyme responsible for inul...

journal_title：Applied and environmental microbiology

authors： Wang SA,Li FL

更新日期：2013-01-01 00:00:00

abstract：:Twenty-six lactic acid bacterium strains isolated from European dairy products were identified as Streptococcus thermophilus and characterized by bacterial growth and exopolysaccharide (EPS)-producing capacity in milk and enriched milk medium. In addition, the acidification rates of the different strains were compared...

journal_title：Applied and environmental microbiology

authors： Vaningelgem F,Zamfir M,Mozzi F,Adriany T,Vancanneyt M,Swings J,De Vuyst L

更新日期：2004-02-01 00:00:00

abstract：:Polyethylene glycol 6000 precipitation was found to be an effective concentration method that enhanced the chances for detecting human virus pathogens in environmental samples. Percent recoveries from eluates of fresh and estuarine waters with 8% polyethylene glycol 6000 averaged 86 for hepatitis A virus, 77 for human...

journal_title：Applied and environmental microbiology

authors： Lewis GD,Metcalf TG

更新日期：1988-08-01 00:00:00

abstract：:Piscirickettsia salmonis is an obligate intracellular bacterial pathogen of salmonid fish and the etiological agent of the aggressive disease salmonid rickettsial syndrome. Today, this disease, also known as piscirickettsiosis, is the cause of high mortality in net pen-reared salmonids in southern Chile. Although the ...

journal_title：Applied and environmental microbiology

authors： Henríquez V,Rojas MV,Marshall SH

更新日期：2003-10-01 00:00:00

abstract：:The incidence of microbes in the nasal cavities of workers in three paper and board mills was investigated. A total of 234 persons exposed to microbial aerosols and splashes from paper machine wires and debarker drums formed the exposed group. The control group consisted of 294 workers from the dry working areas: the ...

journal_title：Applied and environmental microbiology

authors： Niemelä SI,Väätänen P,Mentu J,Jokinen A,Jäppinen P,Sillanpää P

更新日期：1985-07-01 00:00:00

abstract：:We investigated the effects of copper on the structure and physiology of freshwater biofilm microbial communities. For this purpose, biofilms that were grown during 4 weeks in a shallow, slightly polluted ditch were exposed, in aquaria in our laboratory, to a range of copper concentrations (0, 1, 3, and 10 microM). De...

journal_title：Applied and environmental microbiology

authors： Massieux B,Boivin ME,Van Den Ende FP,Langenskiöld J,Marvan P,Barranguet C,Admiraal W,Laanbroek HJ,Zwart G

更新日期：2004-08-01 00:00:00

abstract：:We studied the growth of six culturable bacterial lineages from coastal North Sea picoplankton in environmental samples under different incubation conditions. The grazing pressure of heterotrophic nanoflagellates (HNF) was reduced either by double prefiltration through 0.8- micro m-pore-size filters or by 10-fold dilu...

journal_title：Applied and environmental microbiology

authors： Beardsley C,Pernthaler J,Wosniok W,Amann R

更新日期：2003-05-01 00:00:00

abstract：:Produce isolates of the Escherichia coli Ont:H52 serotype carried Shiga toxin 1 and stable toxin genes but only expressed Stx1. These strains had pulsed-field gel electrophoresis profiles that were 90% homologous to clinical Ont:H52 strains that had identical phenotypes and genotypes. All Ont:H52 strains had identical...

journal_title：Applied and environmental microbiology

authors： Monday SR,Keys C,Hanson P,Shen Y,Whittam TS,Feng P

更新日期：2006-04-01 00:00:00

abstract：:Bacterial communities associated with marine algae are often dominated by members of the Roseobacter clade, and in the present study, we describe Roseobacter phenotypes that may provide this group of bacteria with selective advantages when colonizing this niche. Nine of 14 members of the Roseobacter clade, of which ha...

journal_title：Applied and environmental microbiology

authors： Bruhn JB,Gram L,Belas R

更新日期：2007-01-01 00:00:00

abstract：:Blastobacter spp. are freshwater bacteria that form rosette structures by cellular attachment to a common base. Comparative analyses of ribosomal 16S rRNA gene and internally transcribed spacer region sequences indicated that B. denitrificans is a member of the alpha-subdivision of Proteobacteria. Among the alpha-Prot...

journal_title：Applied and environmental microbiology

authors： van Berkum P,Eardly BD

更新日期：2002-03-01 00:00:00

abstract：:The prophage-encoded Shiga toxin is a major virulence factor in Stx-producing Escherichia coli (STEC). Toxin production and phage production are linked and occur after induction of the RecA-dependent SOS response. However, food-related stress and Stx-prophage induction have not been studied at the single-cell level. T...

journal_title：Applied and environmental microbiology

authors： Fang Y,Mercer RG,McMullen LM,Gänzle MG

更新日期：2017-09-15 00:00:00

abstract：:Nitrate was formed from ammonium at pH 3.2 to 6.1 in suspensions of a naturally acid forest soil; the maximum rates of formation occurred at ca. pH 4 to 5. Nitrate was also formed from soil nitrogen in suspensions incubated at 50 degrees C. Autotrophic nitrifying bacteria could not be isolated from this soil. Enrichme...

journal_title：Applied and environmental microbiology

authors： Stroo HF,Klein TM,Alexander M

更新日期：1986-11-01 00:00:00

abstract：:Cold shock at 0 to 15 degrees C for 1 to 3 h increased the thermal sensitivity of Listeria monocytogenes. In a model broth system, thermal death time at 60 degrees C was reduced by up to 45% after L. monocytogenes Scott A was cold shocked for 3 h. The duration of the cold shock affected thermal tolerance more than did...

journal_title：Applied and environmental microbiology

authors： Miller AJ,Bayles DO,Eblen BS

更新日期：2000-10-01 00:00:00

abstract：:CRISPR-based systems are emerging as the premier method to manipulate many cellular processes. In this study, a simple and efficient CRISPR interference (CRISPRi) system for targeted gene repression in archaea was developed. The Methanosarcina acetivorans CRISPR-Cas9 system was repurposed by replacing Cas9 with the ca...

journal_title：Applied and environmental microbiology

authors： Dhamad AE,Lessner DJ

更新日期：2020-10-15 00:00:00

abstract：:Alfalfa sprouts and other seed sprouts have been implicated in numerous outbreaks of salmonellosis. The source of these epidemics appears to have been low-level contamination of seeds by Salmonella bacteria that developed into clinically significant populations during the seed germination process. To test the possibil...

journal_title：Applied and environmental microbiology

authors： Howard MB,Hutcheson SW

更新日期：2003-01-01 00:00:00

abstract：:A metabolic pathway for the catabolism of propionate is proposed. This pathway incorporates a transcarboxylation reaction involving propionyl coenzyme A and oxaloacetate and a carboxylation of pyruvate to regenerate oxaloacetate. Data indicated that the proposed pathway is reversible. The proposed pathway and its appa...

journal_title：Applied and environmental microbiology

authors： Robbins JE

更新日期：1988-05-01 00:00:00

abstract：:The impact of feed supplementation with bambermycin, monensin, narasin, virginiamycin, chlortetracycline, penicillin, salinomycin, and bacitracin on the distribution of Escherichia coli pathotypes in broiler chickens was investigated using an E. coli virulence DNA microarray. Among 256 E. coli isolates examined, 59 (2...

journal_title：Applied and environmental microbiology

authors： Bonnet C,Diarrassouba F,Brousseau R,Masson L,Topp E,Diarra MS

更新日期：2009-11-01 00:00:00