Free tryptophan pool and tryptophan biosynthetic enzymes in Saccharomyces cerevisiae.

abstract：:The sulfate-reducing highly enriched culture N47 is capable to anaerobically degrade naphthalene, 2-methylnaphthalene, and 2-naphthoic acid. A proteogenomic investigation was performed to elucidate the initial activation reaction of anaerobic naphthalene degradation. This lead to the identification of an alpha-subunit...

journal_title：Archives of microbiology

authors： Bergmann FD,Selesi D,Meckenstock RU

更新日期：2011-04-01 00:00:00

abstract：:DNA acquisition promotes the spread of resistance to antibiotics and virulence among bacteria. It is also linked to several natural phenomena including recombination, genome dynamics, adaptation and speciation. Horizontal DNA transfer between bacteria occurs via conjugation, transduction or competence for natural tran...

journal_title：Archives of microbiology

authors： Bakkali M

更新日期：2013-04-01 00:00:00

abstract：:Only about one third of humans possess a microbiota capable of transforming the dietary isoflavone daidzein into equol. Little is known about the dietary and physiological factors determining this ecological feature. In this study, the in vitro metabolism of daidzein by faecal samples from four human individuals was i...

journal_title：Archives of microbiology

authors： Decroos K,Vanhemmens S,Cattoir S,Boon N,Verstraete W

更新日期：2005-01-01 00:00:00

abstract：:Expression of the gene encoding ribosome modulation factor (RMF), as measured using an rmf-lacZ gene fusion, increased with decreasing pH in exponential phase cultures of Escherichia coli. Expression was inversely proportional to the growth rate and independent of the acidifying agent used and it was concluded that ex...

journal_title：Archives of microbiology

authors： el-Sharoud WM,Niven GW

更新日期：2005-10-01 00:00:00

abstract：:Bacillus subtilis strain 168 encodes two flavocytochromes P450, Cyp102A2 and Cyp102A3. The cyp102A3 gene is preceded by, and organized in an operon with, a gene for a transcriptional regulator, encoded by fatR. The paralogous gene, cyp102A2, is most likely transcribed as a mono-cistronic message. We show that fatR enc...

journal_title：Archives of microbiology

authors： Gustafsson MC,Palmer CN,Wolf CR,von Wachenfeldt C

更新日期：2001-12-01 00:00:00

abstract：:The ADPglucose pyrophosphorylases from Rhodopseudomonas sphaeroides and Rhodopseudomonas gelatinosa are activated by fructose-6-phosphate, pyruvate and fructose-1,6 biophosphate-P2. The effects of the activators are to increase significantly the Vmax of ADPglucose synthesis and to lower the S0.5 values (concentration ...

journal_title：Archives of microbiology

authors： Preiss J,Greenberg E,Parsons TF,Downey J

更新日期：1980-05-01 00:00:00

abstract：:The role of the genomic bipyrimidine nucleotide frequency in pyrimidine dimer formation caused by germicidal UV radiation was studied in three microbial reference organisms (Escherichia coli K12, Deinococcus radiodurans R1, spores and cells of Bacillus subtilis 168). The sensitive HPLC tandem mass spectrometry assay w...

journal_title：Archives of microbiology

authors： Moeller R,Douki T,Rettberg P,Reitz G,Cadet J,Nicholson WL,Horneck G

更新日期：2010-07-01 00:00:00

abstract：:The determination of enzymatic activities in cell-free extracts of Acidaminococcus fermentans and Peptostreptococcus asaccharolyticus led to a refined scheme for the pathway of glutamate fermentation via (R)-2-hydroxyglutarate to acetate and butyrate. From the ratio of these products the amount of ATP generated by sub...

journal_title：Archives of microbiology

authors： Wohlfarth G,Buckel W

更新日期：1985-07-01 00:00:00

abstract：:Glyoxalase I is a ubiquitous enzyme that detoxifies methylglyoxal, which is derived from glycolysis but inhibits the growth of cells from microorganisms to mammals. Here, the structural gene for glyoxalase I ( glo1(+)) from the fission yeast Schizosaccharomyces pombe was identified. Disruption of glo1(+) enhanced susc...

journal_title：Archives of microbiology

authors： Takatsume Y,Izawa S,Inoue Y

更新日期：2004-05-01 00:00:00

abstract：:Two gene clusters encoding similar formate dehydrogenases (FDH) were identified in Eubacterium acidaminophilum. Each cluster is composed of one gene coding for a catalytic subunit ( fdhA-I, fdhA-II) and one for an electron-transferring subunit ( fdhB-I, fdhB-II). Both fdhA genes contain a TGA codon for selenocysteine ...

journal_title：Archives of microbiology

authors： Graentzdoerffer A,Rauh D,Pich A,Andreesen JR

更新日期：2003-01-01 00:00:00

abstract：:A gram-negative bacterium was isolated from activated sewage sludge with thiophene-2-carboxylate as the sole source of carbon and with nitrate as an electron acceptor. The isolate, strain NKK, was a motile, oxidase- and catalase-positive, rod-like bacterium with a G+C content of 61.7 mol%. Besides nitrate, oxygen coul...

journal_title：Archives of microbiology

authors： Bambauer A,Rainey FA,Stackebrandt E,Winter J

更新日期：1998-04-01 00:00:00

abstract：:Mycothiol is the predominant thiol in most actinomycetes, including Mycobacterium tuberculosis, and appears to play a role analogous to glutathione, which is not found in these bacteria. The enzymes involved in mycothiol biosynthesis are of interest as potential targets for new drugs directed against tuberculosis. In ...

journal_title：Archives of microbiology

authors： Koledin T,Newton GL,Fahey RC

更新日期：2002-11-01 00:00:00

abstract：:1. With fumarate as the terminal electron acceptor and either H2 or formate as donor, Vibrio succinogenes could grow anaerobically in a mineral medium using fumarate as the sole carbon source. Both the growth rate and the cell yield were increased when glutamate was also present in the medium. 2. Glutamate was incorpo...

journal_title：Archives of microbiology

authors： Bronder M,Mell H,Stupperich E,Kröger A

更新日期：1982-05-01 00:00:00

abstract：:Nodules collected from Alnus nepalensis growing in mixed forest stands at three different sites around Shillong, were crushed in various culture media to obtain isolates of Frankia. The isolates were found to have typical Frankia morphology as revealed by the scanning electron microscope. Seedlings inoculated with iso...

journal_title：Archives of microbiology

authors： Ganesh G,Misra AK,Chapelon C,Normand P

更新日期：1994-01-01 00:00:00

abstract：:The interaction between Shigella dysenteriae or Shigella sonnei and Acanthamoeba castellanii was studied by viable counts, gentamicin assay and electron microscopy. The result showed that Shigella dysenteriae or Shigella sonnei grew and survived in the presence of amoebae for more than 3 weeks. Gentamicin assay showed...

journal_title：Archives of microbiology

authors： Saeed A,Abd H,Edvinsson B,Sandström G

更新日期：2009-01-01 00:00:00

abstract：:To identify virulence-associated genes of a fish pathogen Yersinia ruckeri, we screened a total of 1056 mini-Tn5-Km2 signature-tagged mutants in rainbow trout by immersion challenge. Of 1056, 25 mutants were found survival-defective as they could not be re-isolated from fish kidney 7 days after infection. Mutated gene...

journal_title：Archives of microbiology

authors： Dahiya I,Stevenson RM

更新日期：2010-07-01 00:00:00

abstract：:The effect of intestinal molecules produced by the host on the virulence of Pseudomonas fluorescens is poorly documented. In the present work, we evaluated the secretion of human β-defensin-2 (hBD-2) by enterocytes after infection with P. fluorescens (a species previously suggested to be involved in inflammatory bowel...

journal_title：Archives of microbiology

authors： Madi A,Alnabhani Z,Leneveu C,Mijouin L,Feuilloley M,Connil N

更新日期：2013-03-01 00:00:00

abstract：:Tetrahydrofolate was shown to function as a methyl acceptor in the anaerobic demethylation of dimethylsulfoniopropionate to methylthiopropionate in cell extracts of the sulfate-reducing bacterium strain WN. Dimethylsulfoniopropionate-dependent activities were 0.56 micromol methyltetrahydrofolate min-1 (mg protein)-1 a...

journal_title：Archives of microbiology

authors： Jansen M,Hansen TA

更新日期：1998-01-01 00:00:00

abstract：:Calcium was found to stimulate stalk development in Caulobacter crescentus and to relieve the inhibition of development long known to be caused by phosphate. This suggested that phosphate inhibition could be attributed to its interaction with Ca2+, thereby depriving the cells of a factor that promoted development. Cal...

journal_title：Archives of microbiology

authors： Poindexter JS

更新日期：1984-06-01 00:00:00

abstract：:Acanthamoeba spp. consists of free-living amoebae, widespread in nature, which occasionally can cause human infections including granulomatous amoebic encephalitis and amoebic keratitis. Acanthamoeba pathogenesis is not entirely known and correlations between pathogenic potential and taxonomy are complex issues. In or...

journal_title：Archives of microbiology

authors： da Rocha-Azevedo B,Costa e Silva-Filho F

更新日期：2007-11-01 00:00:00

abstract：:The tricarboxylic acid (TCA) cycle is one of the major routes of carbon catabolism in Bacillus subtilis. The syntheses of the enzymes performing the initial reactions of the cycle, citrate synthase, and aconitase, are synergistically repressed by rapidly metabolizable carbon sources and glutamine. This regulation invo...

journal_title：Archives of microbiology

authors： Blencke HM,Reif I,Commichau FM,Detsch C,Wacker I,Ludwig H,Stülke J

更新日期：2006-03-01 00:00:00

abstract：:Gayal (Bos frontalis) of the Yunnan region is well adapted to harsh environmental conditions. Its diet consists predominantly of bamboo, reeds, and woody plants, suggesting that the rumen of this species contains many fiber-degrading bacteria and cellulases. The aim of this study was to identify and modify specific ce...

journal_title：Archives of microbiology

authors： Wu D,Wang S,Vinitchaikul P,Zhu Y,Zhou X,Gu Z,Leng J,Gou X,Deng M,Sun L,Mao H,Yang S

更新日期：2020-07-01 00:00:00

abstract：:Acinetobacter species remain alive in hospitals on various surfaces, both dry and moist, forming an important source of hospital infections. These bacteria are naturally resistant to many antibiotic classes. Although the role of the quorum sensing system in regulating the virulence factors of Acinetobacter species has...

journal_title：Archives of microbiology

authors： Erdönmez D,Rad AY,Aksöz N

更新日期：2017-12-01 00:00:00

abstract：:Recently, a unique archaeal/bacterial community that grows in a macroscopically visible string-of-pearls-like structure in cold (~10 degrees C), sulfurous marsh water was discovered. Here, a new technique is described that allows the fast and reliable growth of these string-of-pearls-like microbial communities in larg...

journal_title：Archives of microbiology

authors： Moissl C,Rudolph C,Rachel R,Koch M,Huber R

更新日期：2003-09-01 00:00:00

abstract：:The role of HoxX in hydrogenase biosynthesis of Alcaligenes eutrophus H16 was re-examined. The previously characterized hoxX deletion mutant HF344 and a newly constructed second hoxX mutant carrying a smaller in-frame deletion were studied. The second mutant was impaired in the activity of both the soluble and the mem...

journal_title：Archives of microbiology

authors： Buhrke T,Friedrich B

更新日期：1998-11-01 00:00:00

abstract：:Pyrophosphate (PPi) content of Escherichia coli is increased manyfold when the growth of the cells is limited by inhibition of the synthesis of nucleotides. The accumulated PPi is immediately degraded when inhibition is released and growth allowed to resume. Other tested nutritional deficiencies (starvation of carbon ...

journal_title：Archives of microbiology

authors： Kukko E,Saarento H

更新日期：1983-11-01 00:00:00

abstract：:Effect of acidic condition on the fermentation characteristics was investigated by the continuous culture of Escherichia coli. In accordance with down-regulation of crp gene transcript level as well as up-regulation of arcA, the expressions of the TCA cycle genes were down-regulated, which caused more acetate formatio...

journal_title：Archives of microbiology

authors： Marzan LW,Hasan CM,Shimizu K

更新日期：2013-03-01 00:00:00

abstract：:DNA sequence analysis of the structural urease genes from Staphylococcus xylosus revealed that three enzyme subunits are encoded in the order of 11,000, 15,400 and 61,000 (mol. mass), which correspond to the single polypeptide chain of jack bean urease (90,800). Comparing the deduced amino acid sequence of S. xylosus ...

journal_title：Archives of microbiology

authors： Jose J,Schäfer UK,Kaltwasser H

更新日期：1994-01-01 00:00:00

abstract：:Essential oils (EOs) are products of plant origin and include mixtures of different chemical compounds. These volatile substances have many interesting properties, including antifungal properties. Fungi may develop under field conditions on crops such as wheat or corn and are able to synthesize mycotoxins, which adver...

journal_title：Archives of microbiology

authors： Perczak A,Gwiazdowska D,Marchwińska K,Juś K,Gwiazdowski R,Waśkiewicz A

更新日期：2019-10-01 00:00:00

abstract：:Bacillus thuringiensis (Bt) is efficient, strongly specific, and avirulent to humans, making it one of the most popular biopesticides in the world. Bt LLP29 is a mosquitocidal strain that was first isolated from Magnolia denudata. To understand its molecular mechanism against mosquitoes, the genome of Bt LLP29 was seq...

journal_title：Archives of microbiology

authors： Ma W,Chen H,Jiang X,Wang J,Gelbič I,Guan X,Zhang L

更新日期：2020-09-01 00:00:00