Quinolinate dehydrogenase and 6-hydroxyquinolinate decarboxylase involved in the conversion of quinolinic acid to 6-hydroxypicolinic acid by Alcaligenes sp. strain UK21.

abstract：:Azotobacter vinelandii was grown in oxygen-controlled continuous cultures under conditions of dinitrogen fixation. Different oxygen concentrations were adjusted with air. Cell-free extracts were employed to study the oxygen dependency of the intracellular distribution and activity of the following enzymes: nitrogenase...

journal_title：Archives of microbiology

authors： Röckel D,Hernando JJ,Vakalopoulou E,Post E,Oelze J

更新日期：1983-10-01 00:00:00

abstract：:The radiation resistant bacteria Micrococcus radiophilus and M. radioproteolyticus were studied by thin sectioning and freez-etching techniques and the two species were found to be similar in the fine structure. The only significant difference was in the appearance of the surfaces of the cell walls in freeze-etched pr...

journal_title：Archives of microbiology

authors： Sleytr UB,Silva MT,Kocur M,Lewis NF

更新日期：1976-04-01 00:00:00

abstract：:The coloration of cells of the cyanobacterium Synechococcus sp. PCC 7002 changed from normal blue-green to yellow-green when cells were grown at 15 degrees C in a medium containing nitrate as the sole nitrogen source. This change of coloration was similar to a general response to nutrient deprivation (chlorosis). For ...

journal_title：Archives of microbiology

authors： Sakamoto T,Bryant DA

更新日期：1998-01-01 00:00:00

abstract：:The study focuses on analysis of the compositional and diversity of bacteria in termite mound soils in comparison with the surrounding soils to verify the assertion that the high nutrient concentrations in termite mound soils influence a complex diversity of microorganisms. Here, whole DNA was extracted from soil samp...

journal_title：Archives of microbiology

authors： Enagbonma BJ,Ajilogba CF,Babalola OO

更新日期：2020-12-01 00:00:00

abstract：:In this study, two quorum sensing (QS) system genes, las and rhI; N-3-oxo-dodecanoyl homoserine lactone (AHL; 3-O-C12-HSL); and QS-related virulence factors and correlation between them were assessed in 30 fish origin P. aeruginosa isolates. The detection of two QS system of the isolates, and eight gene regions consis...

journal_title：Archives of microbiology

authors： Sırıken B,Öz V,Erol İ

更新日期：2021-01-04 00:00:00

abstract：:A Gram-negative, yellow-colored, rod-shaped, strictly aerobic, motile bacterium was isolated from forest soil in Gyeongsang Province, South Korea. The strain was designated as THG-DA2.1(T). Cells of strain THG-DA2.1(T) grew optimally at pH 7.0, at temperature 28 °C and in the presence of 0.5 % NaCl. Based on 16S rRNA ...

journal_title：Archives of microbiology

authors： Singh H,Du J,Ngo HT,Won KH,Kim KY,Yi TH

更新日期：2015-08-01 00:00:00

abstract：:The fate of 35S label was studied during cystine degradation by mycelia of the dermatophytic fungus Microsporum gypseum. Excess free cystine in the medium was readily taken up and its sulfur moiety excreted as inorganic sulfate and sulfite. At intervals after 3-60 min of incubation with 35S cystine the products of cys...

journal_title：Archives of microbiology

authors： Kunert J,Trüper HG

更新日期：1986-07-01 00:00:00

abstract：:Inactivation of peroxisomal enzymes in the yeast Hansenula polymorpha was studied following transfer of cells into cultivation media in which their activity was no longer required for growth. After transfer of methanol-grown cells into media containing glucose - a substrate that fully represses alcohol oxidase synthes...

journal_title：Archives of microbiology

authors： Veenhuis M,Douma A,Harder W,Osumi M

更新日期：1983-06-01 00:00:00

abstract：:The TTA codon, one of the six available codons for the amino acid leucine, is the rarest codon among the high GC genomes of Actinobacteria including Frankia. This codon has been implicated in various regulatory mechanisms involving secondary metabolism and morphological development. TTA-mediated gene regulation is wel...

journal_title：Archives of microbiology

authors： Sen A,Thakur S,Bothra AK,Sur S,Tisa LS

更新日期：2012-01-01 00:00:00

abstract：:In beta-lactam-antibiotic-producing fungi, such as Aspergillus (Emericella) nidulans, L-alpha-aminoadipic acid is the branching point of the lysine and penicillin biosynthesis pathways. To obtain a deeper insight into the regulation of lysine biosynthesis genes, the regulation of the A. nidulans lysF gene, which encod...

journal_title：Archives of microbiology

authors： Weidner G,Steidl S,Brakhage AA

更新日期：2001-02-01 00:00:00

abstract：:An unidentified filamentous purple bacterium, probably belonging to a new genus or even a new family, is found in close association with the filamentous, mat-forming cyanobacterium Microcoleus chthonoplastes in a hypersaline pond at Guerrero Negro, Baja California Sur, Mexico, and in Solar Lake, Sinai, Egypt. This or...

journal_title：Archives of microbiology

authors： D'Amelio ED,Cohen Y,Des Marais DJ

更新日期：1987-01-01 00:00:00

abstract：:Two bacterial isolates from Great Bay Estuary, New Hampshire, in co-culture carried out anaerobic dissimilation of citric acid with Fe(III) as the terminal electron acceptor. Neither isolate oxidized citrate with Fe(III) anaerobically in axenic culture. The Fe(III) reducer, Shewanella alga strain BrY, did not grow ana...

journal_title：Archives of microbiology

authors： Knight V V,Caccavo F,Wudyka S,Blakemore R

更新日期：1996-10-17 00:00:00

abstract：:The anaerobic bacterium Desulfobacterium cetonicum oxidized m-cresol completely with sulfate as electron acceptor. During growth, 3-hydroxybenzylsuccinate (identified by gas chromatography/mass spectroscopy and by comparison of high-performance liquid chromatography retention time and UV spectrum with a chemically syn...

journal_title：Archives of microbiology

authors： Müller JA,Galushko AS,Kappler A,Schink B

更新日期：1999-11-01 00:00:00

abstract：:Dunaliella tertiolecta (marine) and D. viridis (halophilic) were each trained by serial transfer to grow at salt concentrations previously regarded as the other's domain. D. viridis then had a salt optimum at 1.0-1.5 M sodium chloride whereas that for D. tertiolecta was less than 0-2 M. Nevertheless D. tertiolecta gre...

journal_title：Archives of microbiology

authors： Borowitzka LJ,Kessly DS,Brown AD

更新日期：1977-05-13 00:00:00

abstract：:The Sinorhizobium fredii HH103 rkp-1 region, which is involved in capsular polysaccharide (KPS) biosynthesis, is constituted by the rkpU, rkpAGHIJ, and kpsF3 genes. Two mutants in this region affecting the rkpA (SVQ536) and rkpI (SVQ538) genes were constructed. Polyacrylamide gel electrophoresi...

journal_title：Archives of microbiology

authors： Margaret-Oliver I,Lei W,Parada M,Rodríguez-Carvajal MA,Crespo-Rivas JC,Hidalgo Á,Gil-Serrano A,Moreno J,Rodríguez-Navarro DN,Buendía-Clavería A,Ollero J,Ruiz-Sainz JE,Vinardell JM

更新日期：2012-02-01 00:00:00

abstract：:Two styrene monooxygenase types, StyA/StyB and StyA1/StyA2B, have been described each consisting of an epoxidase and a reductase. A gene fusion which led to the chimeric reductase StyA2B and the occurrence in different phyla are major differences. Identification of SMOA/SMOB-ADP1 of Acinetobacter baylyi ADP1 may enlig...

journal_title：Archives of microbiology

authors： Gröning JA,Kaschabek SR,Schlömann M,Tischler D

更新日期：2014-12-01 00:00:00

abstract：:The metabolism of methylamine as the nitrogen source for growth of the non-methylotrophic yeast Candida utilis and the methylotrophic yeast Hansenula polymorpha was investigated. Growth of both organisms in media with glucose and methylamine was associated with the presence of an amine oxidase in these cells. The enzy...

journal_title：Archives of microbiology

authors： Zwart K,Veenhuis M,van Dijken JP,Harder W

更新日期：1980-06-01 00:00:00

abstract：:Ever since the development of the first antibiotic compound with anticancer potential, researchers focused on isolation and characterization of prospective microbial natural products with potential anti-infective and anticancer activities. The present work describes the production of bioactive metabolites by heterotro...

journal_title：Archives of microbiology

authors： Kizhakkekalam VK,Chakraborty K

更新日期：2020-11-02 00:00:00

abstract：:The chb operon of Escherichia coli is involved in the utilization of chitooligosaccharides. While acquisition of two classes of mutations leading to altered regulation of the chb operon is necessary to confer the ability to utilize the glucose disaccharide cellobiose to wild-type strains of E. coli, in the closely rel...

journal_title：Archives of microbiology

authors： Joseph AM,Sonowal R,Mahadevan S

更新日期：2017-03-01 00:00:00

abstract：:Photosynthesis was measured by the 14C method on natural as well as low light adapted populations of Chloroflexus (a photosynthetic bacterium) and Synechococcus (a blue-green alga) from hot springs in Yellowstone National Park (Wyoming U.S.A.), to test the ability of these phototrophs to photosynthesize at a variety o...

journal_title：Archives of microbiology

authors： Madigan MT,Brock TD

更新日期：1977-05-13 00:00:00

abstract：:The set of physiological and metabolic changes occurring immediately after inoculation and during the lag phase is thought to be of vital importance for optimal offset of fermentation. The transcriptional changes taking place during the lag phase after inoculation of a late-respiratory-phase yeast culture into fresh, ...

journal_title：Archives of microbiology

authors： Brejning J,Jespersen L,Arneborg N

更新日期：2003-04-01 00:00:00

abstract：:Listeria monocytogenes was examined for the presence of surface carbohydrates to ascertain whether surface sugars, if present, would interact with eucaryotic surface carbohydrate receptors. We found that a virulent, but not two avirulent strains had a surface alpha-D-galactose residue as determined by agglutination wi...

journal_title：Archives of microbiology

authors： Cowart RE,Lashmet J,McIntosh ME,Adams TJ

更新日期：1990-01-01 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：:Among proteins specifically found in most gram-positive bacteria of the phylum Firmicutes, conserved proteins of the family pfam06177-DUF988-COG4708 are of unknown function. The citrulline cluster-linked (ccl) gene of Lactobacillus plantarum codes one such protein and is adjacent to the citrulline biosynthesis operon ...

journal_title：Archives of microbiology

authors： Arsène-Ploetze F,Nicoloff H,Bringel F

更新日期：2005-08-01 00:00:00

abstract：:Succinate:quinone reductase is a membrane-bound enzyme of the citric acid cycle and the respiratory chain. Carboxin is a potent inhibitor of the enzyme of certain organisms. The bacterium Paracoccus denitrificans was found to be sensitive to carboxin in vivo, and mutants that grow in the presence of 3'-methyl carboxin...

journal_title：Archives of microbiology

authors： Matsson M,Ackrell BA,Cochran B,Hederstedt L

更新日期：1998-07-01 00:00:00

abstract：:Serine/threonine protein kinases (STPK) play a major role in the physiology and pathogenesis of Mycobacterium tuberculosis. Here, we have examined the role of pknE, a STPK in the adaptive responses of M. tuberculosis using a deletion mutant ΔpknE. The survival of ΔpknE was assessed in the presence of stress (pH, surfa...

journal_title：Archives of microbiology

authors： Kumar D,Palaniyandi K,Challu VK,Kumar P,Narayanan S

更新日期：2013-01-01 00:00:00

abstract：:A lack on the association between acid tolerance response (ATR) and osmotolerance response (OTR) among Listeria monocytogenes dairy isolates was found. In order to evaluate how wild L. monocytogenes isolates mount tolerance responses under a sub-lethal pH and a low sodium chloride concentration (pH 5.5 and 3.5 % [w/v]...

journal_title：Archives of microbiology

authors： Melo J,Andrew PW,Faleiro ML

更新日期：2013-05-01 00:00:00

abstract：:In recent years, bioremediation is considered as an efficient method to remove the pollutants from the industrial wastewater. In this study, quantitative gene expressions (Real-time RT-PCR) of mtr gene cluster (mtrA, mtrB, mtrC, mtrD, mtrE, mtrF and omcA) in five different uranium concentrations (0.1, 0.25, 0.5, 1 and...

journal_title：Archives of microbiology

authors： Ghasemi R,Fatemi F,Mir-Derikvand M,Zarei M

更新日期：2020-12-01 00:00:00

abstract：:The divergently transcribed sulfur oxidation (sox) operon of a sulfur chemolithotrophs, Pseudaminobacter salicylatoxidans KCT001, comprising sox TRS-VW-XYZABCD, is regulated by a repressor (SoxR). SoxR binds to two disparate operators, sv (present in between soxS and soxV) and wx (present in between soxW and soxX). He...

journal_title：Archives of microbiology

authors： Mandal S,Das Gupta SK

更新日期：2012-09-01 00:00:00

abstract：:In the Tat protein export pathway of Gram-negative bacteria, TatA and TatB are homologous proteins that carry out distinct and essential functions in separate sub-complexes. In contrast, Gram-positive Tat systems usually lack TatB and the TatA protein is bifunctional. We have used a mutagenesis approach to delineate T...

journal_title：Archives of microbiology

authors： Barnett JP,Lawrence J,Mendel S,Robinson C

更新日期：2011-08-01 00:00:00