Microbial DNA topoisomerases and their inhibition by antibiotics.

abstract：:Eighty-seven culturable endophytic bacterial isolates in 19 genera were obtained from coffee plants collected in Colombia (n = 67), Hawaii (n = 17), and Mexico (n = 3). Both Gram positive and Gram negative bacteria were isolated, with a greater percentage (68%) being Gram negative. Tissues yielding bacterial endophyte...

journal_title：Journal of basic microbiology

authors： Vega FE,Pava-Ripoll M,Posada F,Buyer JS

更新日期：2005-01-01 00:00:00

abstract：:Removal of heavy metals from food material by growing micro-organisms is limited by the toxicity to cells. In this study, different preincubation treatments were investigated to analyze their effects on cadmium resistance and removal ability of Pichia kudriavzevii A16 and Saccharomyces cerevisiae CICC1211. Sucrose pre...

journal_title：Journal of basic microbiology

authors： Zhang D,Ma N,Guo Z,Chen P,Ma R,Sun X,Wang D,Wang J,Xu Y

更新日期：2019-09-01 00:00:00

abstract：:The diversity of Actinobacteria associated with Paratrechina longicornis, an ant species that prefers a high protein diet, in a subtropical dry forest (Guánica, Puerto Rico) was determined by culture methods and by 16S rDNA clone libraries. The results of both methodologies were integrated to obtain a broader view of ...

journal_title：Journal of basic microbiology

authors： Reyes RD,Cafaro MJ

更新日期：2015-01-01 00:00:00

abstract：:Glucocorticosteroids such as dexamethasone have polluted hospital wastewater, urban sewage, and river water in varying degrees. However, dexamethasone degradation by bioremediation technology is less understood. This study aims to isolate bacteria that could degrade dexamethasone and to identify their degradation char...

journal_title：Journal of basic microbiology

authors： Yi W,Zhibang Y,Lili Z,Zhongquan S,Lianju M,Ziwei T,Renju J

更新日期：2015-02-01 00:00:00

abstract：:Aspergillus nidulans produces sterigmatocystin, a secondary metabolite mycotoxin, for the protection of its reproductive structures. Previous studies on grazing behavior of fungivore arthropods, regulation of sexual development, and secondary metabolite biosynthesis have revealed the association of sterigmatocystin bi...

journal_title：Journal of basic microbiology

authors： Ámon J,Keisham K,Bokor E,Kelemen E,Vágvölgyi C,Hamari Z

更新日期：2018-07-01 00:00:00

abstract：:A potent β-CGTase producing bacterium ND1 has been isolated from sugarcane field soil in India. The biochemical, physiologicaland phylogenetic analyses based on 16S rRNA gene suggest that the isolate belongs to Bacillus cereus group. The enzyme β-CGTase produced from isolate ND1 catalyzes production of β-cyclodextrin ...

journal_title：Journal of basic microbiology

authors： Upadhyay D,Sharma S,Shrivastava D,Kulshreshtha NM

更新日期：2019-02-01 00:00:00

abstract：:Rock phosphate effect on English mint (Mentha piperita L.) grown on steamed perlite:vermiculite (1:1, v:v) substrate, with and without rock phosphate, was evaluated in greenhouse experiments. Five treatments were carried out by inoculation with an arbuscular mycorrhizal fungus Glomus mosseae and a phosphorus solubiliz...

journal_title：Journal of basic microbiology

authors： Cabello M,Irrazabal G,Bucsinszky AM,Saparrat M,Schalamuk S

更新日期：2005-01-01 00:00:00

abstract：:Hydrophobins are a family of small, moderately hydrophobic proteins with eight cysteine residues arranged in a conserved pattern. A full-length cDNA, designated Po.hyd, corresponding to a hydrophobin gene of Pleurotus ostreatus was obtained in our previous work. The Po.hyd gene contains a 333 bp open reading frame (OR...

journal_title：Journal of basic microbiology

authors： Ma A,Shan L,Wang N,Zheng L,Chen L,Xie B

更新日期：2007-08-01 00:00:00

abstract：:To explore the influence of seasonal and regional environmental factors on the bacterial community composition (BCC) and diversity in the sediments of Lake Bosten, the 16S rRNA gene of sediment bacteria in four samples from the lake center area and the macrophyte-dominated area were sequenced using 454 pyrosequencing....

journal_title：Journal of basic microbiology

authors： Zhang L,Zhao T,Shen T,Gao G

更新日期：2019-02-01 00:00:00

abstract：:The effect of continuous-wave ultrasound on the viability of Escherichia coli HB101 was assessed using a 20 kHz ultrasonic processor. A standardised cell suspension of fixed concentration was used to investigate the influence of different physical and environmental conditions on ultrasound susceptibility. Cell viabili...

journal_title：Journal of basic microbiology

authors： Allison DG,D'Emanuele A,Eginton P,Williams AR

更新日期：1996-01-01 00:00:00

abstract：:Keratinases hydrolyze structural protein called keratin into constituent peptides. The present study reports excellent washing efficiency and dehairing properties of thermostable and halotolerant keratinase from Bacillus aerius NSMk2. Alkaline keratinase with molecular mass of 9 kDa displayed remarkable thermostabilit...

journal_title：Journal of basic microbiology

authors： Bhari R,Kaur M,Singh RS

更新日期：2019-06-01 00:00:00

abstract：:Crude glucoamylase preparation from Rhizoctonia solani was used to saccharify raw and cooked starch. Various concentrations of potato starch and wheat flour from 10-40%, w/v were used for mashing but 30% was found to be the optimal and economical. The saccharified mash yielded 5.89%, v/v ethanol in a simultaneous sacc...

journal_title：Journal of basic microbiology

authors： Singh D,Dahiya JS,Nigam P

更新日期：1995-01-01 00:00:00

abstract：:Considered are our own data and those found in literature on the properties of yeast mutants impaired in their ability to utilize methanol as sole carbon and energy source; hypotheses about the role of alcohol oxidase and citrate synthase in biogenesis of peroxisomes are proposed. It has been proved that formaldehyde ...

journal_title：Journal of basic microbiology

authors： Sibirny AA,Titorenko VI,Gonchar MV,Ubiyvovk VM,Ksheminskaya GP,Vitvitskaya OP

更新日期：1988-01-01 00:00:00

abstract：:Members of Bacillaceae, Rhizobiaceae, actinomycetes and others were isolated from cultivated and non-cultivated saline soils. The high population of bacteria and actinomycetes were almost coincided with the relatively high levels of organic matter whatever the degree of soil salinity. Bacillus stearothermophilus and B...

journal_title：Journal of basic microbiology

authors： Zahran HH,Moharram AM,Mohammad HA

更新日期：1992-01-01 00:00:00

abstract：:The possibility of associating starch degradation with bacterial beta-glucuronidase expression was examined. We proved that starving, in starch medium, amylase-negative Escherichia coli (M94) which has constitutive beta-glucuronidase greatly reduces (p < 0.01) its background activity, but the addition of both cell-fre...

journal_title：Journal of basic microbiology

authors： Cenci G,Caldini G,Trotta F

更新日期：2000-01-01 00:00:00

abstract：:Thermus strains are regarded as models to investigate the mechanism of thermostability of thermophiles, and phages from Thermus are particularly interesting because of their way to regulate gene expression. In this research, a Thermus bacteriophage named TSP4 (Thermus Siphoviridae phage) was isolated from Tengchong ho...

journal_title：Journal of basic microbiology

authors： Lin L,Hong W,Ji X,Han J,Huang L,Wei Y

更新日期：2010-10-01 00:00:00

abstract：:The glutathione (GSH) S-conjugation of 1,2-epoxy-3-(4'-nitrophenoxy)propane was catalysed predominantly by microsomal glutathione S-transferase (mGST) in Penicillium chrysogenum. The specific mGST activity unlike the cytosolic GST (cGST) activity increased substantially when the penicillin side-chain precursor phenoxy...

journal_title：Journal of basic microbiology

authors： Emri T,Oláh B,Sámi L,Pócsi I

更新日期：2003-01-01 00:00:00

abstract：:beta -Glucosidase is a highly desired glycosidase, especially for hydrolysis of glycoconjugated precursors in musts and wines for the release of active aromatic compounds. A Shewanella sp. G5 strain was isolated from the intestinal content of benthonic organism (Munida subrrugosa) from different coastal areas of the B...

journal_title：Journal of basic microbiology

authors： Cristóbal HA,Breccia JD,Abate CM

更新日期：2008-02-01 00:00:00

abstract：:Candida albicans supernatants contain a mixture of autoregulatory alcohols. In vitro, when added individually or in combination, these alcohols inhibit the yeast to filamentous form conversion. Here we evaluate the in vivo effect of the exogenous administration of a Cocktail solution simulating the composition of alco...

journal_title：Journal of basic microbiology

authors： Martins M,Lazzell AL,Lopez-Ribot JL,Henriques M,Oliveira R

更新日期：2012-08-01 00:00:00

abstract：:Spontaneously occurring thallium-resistant (Tl+ -R) mutant of diazotrophic, heterocystous cyanobacterium Nostoc muscorum is described in which Tl+ -R phenotype is the cause of defective salinity-inducible K+ uptake activity and proline uptake activity. The results indicate that mutant strain is more sensitive to salin...

journal_title：Journal of basic microbiology

authors： Bhargava S

更新日期：2005-01-01 00:00:00

abstract：:Mercury tolerant bacteria Pseudarthrobacter oxydans strain MM20 and Pseudomonas frederiksbergensis strain SS18 were isolated from the tundra ecosystem of Ny-Ålesund, Svalbard, where commercial exploitation of the coal existed till 1960s. Minimum inhibitory concentration (MIC), mercury removal, mercury biosorption, and...

journal_title：Journal of basic microbiology

authors： Mechirackal Balan B,Shini S,Krishnan KP,Mohan M

更新日期：2018-04-01 00:00:00

abstract：:The nourseothricin-producing S. noursei strain JA 3890b possessed a high degree of resistance to its own antibiotic when grown in submerged cultures started from mycelium samples as inocula. In contrast, both the outgrowth of spores and the development of surface colonies from mycelium samples were severely inhibited ...

journal_title：Journal of basic microbiology

authors： Röder B,Plonka G,Bormann EJ,Gräfe U

更新日期：1985-01-01 00:00:00

abstract：:The acetic acid bacteria have mainly relevance for bacterial cellulose production and fermented bio-products manufacture. The purpose of this study was to identify temperate bacteriophages in a cellulose-producing bacterial strain Komagataeibacter intermedius IMBG180. Prophages from K. intermedius IMBG180 were induced...

journal_title：Journal of basic microbiology

authors： Kharina A,Podolich O,Faidiuk I,Zaika S,Haidak A,Kukharenko O,Zaets I,Tovkach F,Reva O,Kremenskoy M,Kozyrovska N

更新日期：2015-04-01 00:00:00

abstract：:The objectives of the present study were to purify and assess the killer toxin effect produced by Aureobasidium pullulans under casual agents of green mold (Penicillum digitatum) and sour rot (Geotrichum citri-aurantii). Initially, different methods of protein precipitation were tested. The proteolytic activity and th...

journal_title：Journal of basic microbiology

authors： Moura VS,Pollettini FL,Ferraz LP,Mazzi MV,Kupper KC

更新日期：2020-12-29 00:00:00

abstract：:A study was performed to develop a fermented milk beverage with the aim to increase the potential application of buffalo cheese whey and soymilk. A mixed substrate was prepared by selective combination, which contained buffalo cheese whey 35%, soymilk 30% and cow milk 35%. The substrate mixture was fermented by a mixe...

journal_title：Journal of basic microbiology

authors： Macedo RF,Freitas RJ,Pandey A,Soccol CR

更新日期：1999-01-01 00:00:00

abstract：:Clinical isolates of Proteus penneri were tested for the presence of genes encoding hemolytic activity. Strains possessing DNA sequences similar to the hlyCABD genes in Escherichia coli were found. Each secreted a 110 kDa protein which reacted with a specific anti-HlyA antiserum. Southern blotting analysis revealed th...

journal_title：Journal of basic microbiology

authors： Serwecinska L,Pytlos M,Lukomski S,Jaworski A,Rózalski A

更新日期：1997-01-01 00:00:00

abstract：:A comparative study of the wild type A. nidulans and a mutant strain aco-T69 (lacking conidia and cleistothecia) revealed the better production of beta-1,4-glucosidase in the former. The relative distribution of the enzyme levels in various morphological structures viz. somatic hyphae, spores and cleistothecia also sh...

journal_title：Journal of basic microbiology

authors： Sharma S,Bagga PS,Sandhu DK

更新日期：1990-01-01 00:00:00

abstract：:Yarrowia lipolytica yeast was grown batchwise on n-hexadecane as the carbon and energy source. Two cerebroside species were quantitatively isolated from sphingolipid fractions of total lipids by a combination of column chromatography and preparative high-performance thin-layer chromatography. The cerebroside content a...

journal_title：Journal of basic microbiology

authors： Rupcić J,Georgiù K,Marić V

更新日期：2004-01-01 00:00:00

abstract：:Membrane-attached nucleoids were isolated from E. coli and separated from proteins by 2 M NaCl. Disintegration of such nucleoids by ultrasound and subsequent centrifugation resulted in the formation of two fractions: a sediment (fraction I) and a supernatant (fraction II). The protein:DNA ratio of fraction I was equal...

journal_title：Journal of basic microbiology

authors： Gaziev AI,Fomenko LA,Zakrzhevskaya DT,Petrov SI

更新日期：1986-01-01 00:00:00

abstract：:An Indian indigenous, Loktak Lake soil isolate Streptomyces violascens MT7 was assessed for its biocontrol potential both in vitro and in vivo against toxigenic fruit-rotting fungi. Strain MT7 exhibited broad-spectrum antifungal activity against various pathogenic postharvest fungi of citrus and papaya. In shake-flask...

journal_title：Journal of basic microbiology

authors： Choudhary B,Nagpure A,Gupta RK

更新日期：2015-12-01 00:00:00