Antimicrobial Mechanism of Oleanolic and Ursolic Acids on Streptococcus mutans UA159.

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：:Root colonization and diversity of arbuscular mycorrhizal fungi (AMF) were analyzed in plants growing in fly ash pond. Eight species could be separated morphologically, while phylogenetic analyses after PCR amplification of the ITS region followed by RFLP and sequencing revealed seven different AM fungal sequence type...

journal_title：Current microbiology

authors： Giridhar Babu A,Sudhakara Reddy M

更新日期：2011-09-01 00:00:00

abstract：:We undertook the issue of the distribution of intracellular bacteria among Oribatida (Acari). Six genera of bacteria were detected by PCR and Sanger DNA sequencing: Wolbachia, Cardinium, Rickettsia, Spiroplasma, Arsenophonus, and Hamiltonella. Our research, for the first time, revealed the presence of Cardinium in Mic...

journal_title：Current microbiology

authors： Konecka E,Olszanowski Z

更新日期：2019-09-01 00:00:00

abstract：:A genetic fingerprinting analysis of Caribbean isolates of M. avium complex (MAC) from AIDS patients by a Southern blotting technique after Pstl digestion with nonradioactive DNA probes coding for single-copy sequences DT1 and DT6 was performed. In parallel, a selective amplification of a 187-bp fragment within the DT...

journal_title：Current microbiology

authors： Sola C,Devallois A,Goh KS,Legrand E,Rastogi N

更新日期：1996-12-01 00:00:00

abstract：:Two strains of a novel basidiomycetous yeast species were isolated from the gut of wood-boring larvae collected in the Baotianman Nature Reserve, the central China. Sequence analysis of the D1/D2 domains of the large subunit (LSU) rRNA gene and internal transcribed spacer (ITS) regions showed that these yeasts belong ...

journal_title：Current microbiology

authors： Hui FL,Niu QH,Ke T,Li YX

更新日期：2012-11-01 00:00:00

abstract：:The expression of the eukaryotic bbc1 (breast basic conserved) gene (the bbc1 gene of the marine green alga Chlamydomonas sp. W-80 strain) enhanced the tolerance against salt-stress and freezing-stress in E. coli cells. The expression of the BBC1 protein in the E. coli cells carrying the algal bbc1 gene and that in th...

journal_title：Current microbiology

authors： Tanaka S,Ikeda K,Miyasaka H

更新日期：2001-03-01 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：:Brevibacterium halotolerans is currently classified as a member of the Brevibacterium genus, a genus that groups together many bacterial species of similar morphology but diverse biochemical and physiological features. Here we suggest, based on multiple gene sequencing and microbial and biochemical characterization of...

journal_title：Current microbiology

authors： Ben-Gad D,Gerchman Y

更新日期：2017-01-01 00:00:00

abstract：:Tropical plants represent hotspots of endophytic fungal species diversity. Based on culture-dependent methods, we evaluated the endophytic fungal communities in leaves of three plant species found in the Brazilian Atlantic Rainforest: Begonia fischeri, Begonia olsoniae, and Begonia venosa. These species are found in t...

journal_title：Current microbiology

authors： Correia AML,Lira SP,Assis MA,Rodrigues A

更新日期：2018-04-01 00:00:00

abstract：:The emergence of methicillin-resistant Staphylococcus aureus (MRSA) is responsible for nosocomial and community-acquired infections. Hence, rapid and accurate laboratory diagnosis of MRSA is a vital constituent of control measures. The present study evaluated five different methods for the identification of MRSA. A to...

journal_title：Current microbiology

authors： Al-Talib H,Yean CY,Al-khateeb A,Singh KK,Hasan H,Al-Jashamy K,Ravichandran M

更新日期：2010-07-01 00:00:00

abstract：:The low molecular weight (LMW) heat shock protein (HSP), HSP16.6, in the unicellular cyanobacterium, Synechocystis sp. PCC 6803, protects cells from elevated temperatures. A 95% reduction in the survival of mutant cells with an inactivated hsp16.6 was observed after exposure for 1 h at 47 degrees C. Wild-type cell sur...

journal_title：Current microbiology

authors： Lee S,Owen HA,Prochaska DJ,Barnum SR

更新日期：2000-04-01 00:00:00

abstract：:Amino acid residues in the active site of quinoline 2-oxidoreductase (Qor) that are deemed important for substrate binding and turnover were replaced by site-directed mutagenesis. The apparent k(cat) values for quinoline were reduced 2.4-, 38-, 40-, and 199-fold in the protein variants QorA259G, QorW331G, QorV373A, an...

journal_title：Current microbiology

authors： Purvanov V,Fetzner S

更新日期：2005-04-01 00:00:00

abstract：:Gram-negative bacteria are generally more tolerant to disinfectants than Gram-positive bacteria due to outer membrane (OM) barrier, but the tolerant mechanism is not well characterized. We have utilized comparative proteomic methodologies to characterize the OM proteins of E. coli K-12 K99+ in response to phenol stres...

journal_title：Current microbiology

authors： Zhang DF,Li H,Lin XM,Wang SY,Peng XX

更新日期：2011-03-01 00:00:00

abstract：:A novel thermostable phytase gene was cloned from Aspergillus fumigatus WY-2. It was 1459 bp in size and encoded a polypeptide of 465 amino acids. The gene was expressed in Pichia pastoris GS115 as an extracellular enzyme. The expressed enzyme was purified to homogeneity and biochemically characterized. The purified e...

journal_title：Current microbiology

authors： Wang Y,Gao X,Su Q,Wu W,An L

更新日期：2007-07-01 00:00:00

abstract：:A Gram-positive bacterium, designated strain XY18(T), was isolated from a cured vanilla bean in Hainan province, China. Cells were rod-shaped, endospore producing, and peritrichous flagella. Strain XY18(T) grew at salinities of 0-8 % (w/v) NaCl (optimally 1-4 %), pH 4.0-8.0 (optimally 5.0-7.0 %) and temperature range ...

journal_title：Current microbiology

authors： Chen YG,Gu FL,Li JH,Xu F,He SZ,Fang YM

更新日期：2015-02-01 00:00:00

abstract：:An isolate of Lactococcus lactis from fermented milk was found to produce a bacteriocin peptide. The isolate could grow in a medium with an initial pH of 11.0, in which it produced the bacteriocin extracellularly at the highest level. The level of the bacteriocin in the medium increased in parallel to the bacterial gr...

journal_title：Current microbiology

authors： Mitra S,Chakrabartty PK,Biswas SR

更新日期：2005-09-01 00:00:00

abstract：:A Gram-negative, short rod-shaped, gliding motile, and pale pink-pigmented bacterial strain, designated 15J9-9T, was isolated from the soil of Iho Tewoo Beach, Jeju Island, Korea, and characterized taxonomically using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain 15J9-9T belonge...

journal_title：Current microbiology

authors： Park SJ,Lee JJ,Lee SY,Lee DS,Kim MK,Ten LN,Jung HY

更新日期：2017-07-01 00:00:00

abstract：:Using a previously created Mycobacterium avium genomic library with GFP-promoter trap in Mycobacterium smegmatis, we screened for genes that are upregulated upon infection of A. castellanii. Clones exhibiting a 2.5-fold or greater increase in GFP expression, out of a total of 10,000 clones, were selected for further e...

journal_title：Current microbiology

authors： Tenant R,Bermudez LE

更新日期：2006-02-01 00:00:00

abstract：:The goal of this study was to evaluate how two new hydrolysates from poultry by-products act on ten lactobacilli growth kinetics when supplemented to the growth medium. These effects were compared with ones induced by two most common commercial hydrolysates, i.e., tryptone and peptone. Growth medium, supplemented with...

journal_title：Current microbiology

authors： Meli F,Lazzi C,Neviani E,Gatti M

更新日期：2014-01-01 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：:The crystal morphology and the profiles of genes encoding protein toxins (Cry and Cyt) were analyzed in 12 Bacillus thuringiensis strains isolated during epizootics in laboratory culture lines of Cydia pomonella, 2 isolates cultured from Leucoma salicis larvae, and 9 reference strains. Epizootic isolates produced crys...

journal_title：Current microbiology

authors： Konecka E,Kaznowski A,Ziemnicka J,Ziemnicki K,Paetz H

更新日期：2007-09-01 00:00:00

abstract：:A strain of Bacillus thuringiensis that showed significantly high toxicity to Plutella xylostella and Spodoptera exigua was isolated from a Korean soil sample and characterized. The isolate, named B. thuringiensis K1, was determined to belong to ssp. kurstaki (H3a3b3c) type by an H antisera agglutination test and prod...

journal_title：Current microbiology

authors： Li MS,Je YH,Lee IH,Chang JH,Roh JY,Kim HS,Oh HW,Boo KS

更新日期：2002-10-01 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：:Low-substrate regulated microaerophilic behavior (LSRMB) was observed in 10-54% of the bacteria isolated from several fresh-water lakes or ponds, subsurface soils, activated sludge, and Antarctic dry valley soils. Five Pseudomonas and two Bacillus type species showed LSRMB. A subsurface Pseudomonas jessenii strain was...

journal_title：Current microbiology

authors： Mazumder R,Pinkart HC,Alban PS,Phelps TJ,Benoit RE

更新日期：2000-08-01 00:00:00

abstract：:Lactobacilli are members of the normal mucosal microflora of most animals. Many isolates of Lactobacillus spp. are adherent to epithelial cells. In this study, using Lactobacillus acidophilus and L. agilis, we detected adherence in a pattern that suggested that the bacteria were binding to extracellular matrix protein...

journal_title：Current microbiology

authors： Kapczynski DR,Meinersmann RJ,Lee MD

更新日期：2000-08-01 00:00:00

abstract：:Polymorphisms in enzymatically amplified ribosomal DNA (rDNA) were examined in 18 strains of Saccharomyces. Restriction patterns generated from the region spanning the internal transcribed spacers (ITS) and the 5.8S rDNA produced two clusters corresponding to S. bayanus and S. cerevisiae. The type culture of S. carlsb...

journal_title：Current microbiology

authors： Molina FI,Inoue T,Jong SC

更新日期：1992-11-01 00:00:00

abstract：:Salinity, a serious environmental pressure on crop production, might be counteracted by free-living and symbiotic inoculants entailing positive synergistic effects. Enhancement in nutrient uptake and/or production of antioxidants under the stress condition, can improve plant growth and yield. In this study, inoculatio...

journal_title：Current microbiology

authors： Heydari S,Pirzad A

更新日期：2020-09-01 00:00:00

abstract：:Biofilm-forming bacteria Pseudomonas aeruginosa is a common pathogen in mechanically ventilated newborns, which can cause life-threatening infections. Alginate of mucoid Pseudomonas aeruginosa biofilms is considered an important virulence factor which contributes to the resistance to antibiotics. Traditionally, ambrox...

journal_title：Current microbiology

authors： Li F,Yu J,Yang H,Wan Z,Bai D

更新日期：2008-07-01 00:00:00

abstract：:Vanillin is undoubtedly one of the most popular and widely used flavoring agents in the world. Taking into consideration the worldwide demand for natural vanillin and its limited supply, alternative routes for its production including biotransformation are being constantly explored. In this regard, a novel soil bacter...

journal_title：Current microbiology

authors： Kasana RC,Sharma UK,Sharma N,Sinha AK

更新日期：2007-06-01 00:00:00

abstract：:The contents of fed-batch composting (FBC) reactors often aggregate after prolonged operation. This process leads to irreversible breakdown of the decomposition reaction and possible alteration of the bacterial communities. We compared the structures of bacterial communities in reactors under aggregate and optimal con...

journal_title：Current microbiology

authors： Watanabe K,Nagao N,Toda T,Kurosawa N

更新日期：2008-05-01 00:00:00