Disruption of a global regulatory gene to enhance central carbon flux into phenylalanine biosynthesis in Escherichia coli.

abstract：:Bacterial fish pathogens are pervasive in aquaculture. Control of bacterial fish pathogen is a difficult task among aquaculture practitioners. A large number of antibiotics are used for the control of prevalent bacterial pathogens in aquaculture. This may lead to drug resistance among pathogens and further treatment w...

journal_title：Current microbiology

authors： Midhun SJ,Neethu S,Vysakh A,Radhakrishnan EK,Jyothis M

更新日期：2018-09-01 00:00:00

abstract：:The isolate RNP4 obtained from a long-term tannery waste contaminated soil was characterized and presumptively identified as Pseudomonas sp. The strain RNP4 tolerated concentrations up to 450 mg Cr(6+)/L on a Luria-Bartani (LB) agar medium and reduced a substantial amount of Cr(6+) to Cr(3+) in the LB liquid medium. T...

journal_title：Current microbiology

authors： Rajkumar M,Nagendran R,Lee KJ,Lee WH

更新日期：2005-05-01 00:00:00

abstract：:The taxonomic position of bacterial strain, designated 15J9-4T, recovered from a beach soil sample on Jeju Island, South Korea, was established using a polyphasic approach. Strain 15J9-4T was assigned to phylum Bacteroidetes within the family Cytophagaceae based on 16S rRNA gene similarities. The closest phylogenetic ...

journal_title：Current microbiology

authors： Ten LN,Okiria J,Lee JJ,Lee SY,Park S,Lee DS,Kang IK,Kim MK,Jung HY

更新日期：2018-04-01 00:00:00

abstract：:Strain YA was newly isolated from an enrichment culture of river sediment and was identified as Janibacter sp. It was able to utilize dibenzofuran as the sole source of carbon and energy. Strain YA degraded > 90% of 1-chloro-dibenzo-p-dioxin (1-CDD) and > 80% of 2-chloro-dibenzo-p-dioxin in 18 hours with each initial ...

journal_title：Current microbiology

authors： Iwai S,Yamazoe A,Takahashi R,Kurisu F,Yagi O

更新日期：2005-11-01 00:00:00

abstract：:Genes encoding enzymes that catalyze butyryl-CoA formation from acetyl-CoA in a type II strain of Butyrivibrio fibrisolvens were analyzed. The genes encoding thiolase, beta-hydroxybutyryl-CoA dehydrogenase, butyryl-CoA dehydrogenase, and electron transfer flavoproteins were clustered, but the crotonase gene was not pr...

journal_title：Current microbiology

authors： Asanuma N,Kawato M,Ohkawara S,Hino T

更新日期：2003-09-01 00:00:00

abstract：:A rapid direct-extraction method was used to obtain DNA from environmental soil samples. Heat, enzymes, and guanidine isothiocyanate were utilized to lyse cells. The DNA was purified by agarose gel electrophoresis, amplified with 16S rRNA-based primers by use of the polymerase chain reaction, and then digested with th...

journal_title：Current microbiology

authors： Porteous LA,Armstrong JL,Seidler RJ,Watrud LS

更新日期：1994-11-01 00:00:00

abstract：:Degradation of n-alkanes in diesel oil by Pseudomonas aeruginosa strain WatG (WatG) was verified in soil microcosms. The total petroleum hydrocarbon (TPH) degradation level in two bioaugmentation samples was 51% and 46% for 1 week in unsterilized and sterilized soil microcosms, respectively. The TPH degradation in the...

journal_title：Current microbiology

authors： Ueno A,Hasanuzzaman M,Yumoto I,Okuyama H

更新日期：2006-03-01 00:00:00

abstract：:Thymol (5-methyl-2-isopropylphenol) is a phenolic compound that is used to inhibit oral bacteria. Because little is known regarding the effects of this compound on ruminal microorganisms, the objective of this study was to determine the effects of thymol on growth and lactate production by the ruminal bacteria Strepto...

journal_title：Current microbiology

authors： Evans JD,Martin SA

更新日期：2000-11-01 00:00:00

abstract：:Subsurface Wastewater Infiltration System (SWIS) is a sewage ecological treatment technology with low investment, energy consumption, and operating cost. SWIS soil contains a large variety of microorganisms. The metabolic process and production of microorganisms are an important basis for qualitatively describing the ...

journal_title：Current microbiology

authors： Yang L,Li Y,Su F,Li H

更新日期：2020-02-01 00:00:00

abstract：:To well understand the community structure and composition of mesophilic microorganisms in anaerobic system fed with PTA wastewater, an up-flow anaerobic fixed bed reactor was continuously run at 33 and 37 °C for 75 and 60 days, respectively. Both fluorescence in situ hybridization analysis and 454-pyrosequencing were...

journal_title：Current microbiology

authors： Ma KL,Li XK,Wang K,Zhou HX,Meng LW,Zhang J

更新日期：2015-11-01 00:00:00

abstract：:Bats can be divided into frugivory, nectarivory, insectivory, and sanguivory based on their diets, and are therefore ideal wild animal models to study the relationship between diets and intestinal microflora. Early studies of bat gut bacteria showed that the diversity and structure of intestinal bacterial communities ...

journal_title：Current microbiology

authors： Li J,Li L,Jiang H,Yuan L,Zhang L,Ma JE,Zhang X,Cheng M,Chen J

更新日期：2018-10-01 00:00:00

abstract：:The genus Acinetobacter has been recognized to take up exogenous DNA from the environment. In this study, we conducted natural transformation with a novel diesel-degrading Acinetobacter sp. strain, designated strain DR1, using the broad host range plasmid pRK415. Many factors, including temperature, quantities of DNA,...

journal_title：Current microbiology

authors： Park J,Park W

更新日期：2011-01-01 00:00:00

abstract：:To optimize the cell lysis step for DNA extraction from activated sludge samples, two floc dispersion methods (sonication versus stirring with a cation exchange resin), and three cell lysis treatments (lysozyme + SDS, sonication in a water bath, and thermal shock) were tested. For dispersion, stirring with cation exch...

journal_title：Current microbiology

authors： Bourrain M,Achouak W,Urbain V,Heulin T

更新日期：1999-06-01 00:00:00

abstract：:A Gram positive, thermophilic, and filamentous bacterium, designated strain GIESS004(T), was isolated from a sludge compost from Guangzhou, China. Growth occurred at 45-55 °C (optimum 50-53 °C) and pH 6.0-10.0 (optimum pH 7.0-7.5). The organism formed cream-yellow colonies with radial wrinkles. Aerial mycelium was not...

journal_title：Current microbiology

authors： Yu Z,Wu C,Yang GQ,Zhou SG

更新日期：2015-01-01 00:00:00

abstract：:Bifidobacteria are one of the major components in human microbiota that are suggested to function in maintaining human health. The colonization and cell number of Bifidobacterium species in human intestine vary with ageing. However, sequential changes of Bifidobacterium species ranging from newborns to centenarians re...

journal_title：Current microbiology

authors： Kato K,Odamaki T,Mitsuyama E,Sugahara H,Xiao JZ,Osawa R

更新日期：2017-08-01 00:00:00

abstract：:This paper presents the results of studies on the activity of extra-cellular enzymes in soil-willow vegetation filter soil which is used in the post-treatment of household sewage in an onsite wastewater treatment system located in central Poland. Wastewater is discharged from the detached house by gravity into the ons...

journal_title：Current microbiology

authors： Brzezinska MS,Lalke-Porczyk E,Kalwasińska A

更新日期：2012-12-01 00:00:00

abstract：:High yields (1939 U/ml) of an alkaline protease were obtained in batch fermentation of a Bacillus sp. using a response surface methodology. The interaction of four variables, viz., starch, peptone, incubation time, and inoculum density, suggested inoculum density to be an insignificant variable. However, incubation ti...

journal_title：Current microbiology

authors： Puri S,Beg QK,Gupta R

更新日期：2002-04-01 00:00:00

abstract：:A total of 216 bacterial strains were isolated from rice rhizospheric soils in Northern Thailand. The bacterial strains were initially tested for solubilization of inorganic phosphate, indole acetic acid (IAA) production, selected strains were then tested for optimized conditions for IAA production and whether these c...

journal_title：Current microbiology

authors： Chaiharn M,Lumyong S

更新日期：2011-01-01 00:00:00

abstract：:Streptococcus thermophilus (ST) chromosomal DNA fragments generated by partial Sau3A digestion were cloned into the unique BamHI site upstream from the promoterless chloramphenicol acetyltransferase (cat) gene of the Escherichia coli (EC)promoter-probe vector pKK520-3. Recombinant plasmids containing ST sequences with...

journal_title：Current microbiology

authors： Solaiman DK,Somkuti GA

更新日期：1997-04-01 00:00:00

abstract：:The relationship between 16S rRNA gene sequence-derived phylogeny and the bacterial production of diterpenoids from 18 isolates of marine bacteria belonging to the genus Saprospira was determined. Restriction fragment length polymorphism (RFLP) analysis of the PCR amplified 16S rRNA genes of these isolates indicated f...

journal_title：Current microbiology

authors： Mincer TJ,Spyere A,Jensen PR,Fenical W

更新日期：2004-10-01 00:00:00

abstract：:Viral nervous necrosis infections are causing severe problems on aquaculture industry due to ecological and economic impacts. Their causal agent is nervous necrosis virus or nodavirus, which has been classified into four genotypes. Different genotypes correlate with differences in viral pathogenicity. Therefore, ratio...

journal_title：Current microbiology

authors： Toubanaki DK,Margaroni M,Karagouni E

更新日期：2015-11-01 00:00:00

abstract：:One of the main requirements for probiotics is their ability to survive during passage through gastrointestinal tract and to maintain their activity at different adverse conditions. The aim of the study was to look for the strains of lactobacilli and streptococci with high adhesive properties even affected by inhibito...

journal_title：Current microbiology

authors： Hakobyan L,Harutyunyan K,Harutyunyan N,Melik-Andreasyan G,Trchounian A

更新日期：2016-06-01 00:00:00

abstract：:This study investigated the antifungal effects of cement paste containing Paenibacillus polymyxa E681 against Aspergillus niger, a deleterious fungus commonly found in cement buildings and structures. To test the antifungal effects, cement paste containing P. polymyxa E681 was neutralized by CO2 gas, and the fungal gr...

journal_title：Current microbiology

authors： Park SJ,Park SH,Ghim SY

更新日期：2014-10-01 00:00:00

abstract：:Wolbachia are strictly intracellular maternally inherited alpha-proteobacteria, largely widespread among arthropods and filariids (i.e., filarial nematodes). Wolbachia capacities to infect new host species have been greatly evidenced and the transfer of Wolbachia between arthropods and filariids has probably occurred ...

journal_title：Current microbiology

authors： Duron O,Gavotte L

更新日期：2007-09-01 00:00:00

abstract：:A total of 102 lactic acid bacteria (LAB) were isolated from three different coffee farms in Taiwan. These isolates were classified and identified by the restriction fragment length polymorphism analysis and sequencing of 16S ribosomal DNA. Heterofermentative Leuconostoc, and Weissella species were the most common LAB...

journal_title：Current microbiology

authors： Leong KH,Chen YS,Pan SF,Chen JJ,Wu HC,Chang YC,Yanagida F

更新日期：2014-04-01 00:00:00

abstract：:The commencement of intracellular protease synthesis was studied by gelatin zymography in Bacillus thuringiensis ( Btk) HD1, Btk HD73, and a protease-deficient mutant Btk-q derived from the former strain. By gelatin zymography, a 92-kDa protease was detected first at 3 h of sporulation, which continued until 48 h, whe...

journal_title：Current microbiology

authors： Reddy YC,Venkateswerlu G

更新日期：2002-12-01 00:00:00

abstract：:The aim of this study is to investigate the combination of cefepime and sulbactam. Sulbactam, when administered , will effectively inhibit all Extended-spectrum beta lactamases (ESBLs) of the microorganism, while cefepime will inhibit the growth of the resistant microorganisms since it will not be hydrolyzed by OXA-48...

journal_title：Current microbiology

authors： Mataracı-Kara E,Yılmaz M,Özbek-Çelik B

更新日期：2020-09-01 00:00:00

abstract：:Gluconacetobacter diazotrophicus produces levan from sucrose by a secreted levansucrase (LsdA). A levanase-encoding gene ( lsdB), starting 51 bp downstream of the lsdA gene, was cloned from strain SRT4. The lsdB gene (1605 bp) encodes a protein (calculated molecular mass 58.4 kDa) containing a putative 36-amino-acid s...

journal_title：Current microbiology

authors： Menéndez C,Hernández L,Selman G,Mendoza MF,Hevia P,Sotolongo M,Arrieta JG

更新日期：2002-07-01 00:00:00

abstract：:Favre and coworkers (Favre et al., Biochimie 73:235-244, 1991) previously reported that the Bordetella pertussis recA gene present at high copy number could promote a low frequency of recombination, but not bacteriophage induction in Escherichia coli RecA- mutants. Reexamination of these phenotypes demonstrated that, ...

journal_title：Current microbiology

authors： Kuhl SA

更新日期：1996-03-01 00:00:00

abstract：:With human saliva as an inoculum, microcosm dental plaques were grown on dental amalgam in a constant-depth film fermentor (CDFF) in the presence (suc +ve) and absence (suc -ve) of sucrose. The biofilms were then exposed to 0.2% chlorhexidine gluconate (CHG) for 1, 5, or 60 min and the survivors enumerated. Suc +ve bi...

journal_title：Current microbiology

authors： Wilson M,Patel H,Noar JH

更新日期：1998-01-01 00:00:00