Investigations of the pigments from Cytophaga johnsonae Cy jl. New flexirubin-type pigments.

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：:Bacterial pathogens are a major threat to both humans and animals worldwide. It is crucial to understand the mechanisms of various disease processes at the molecular level. Shewanella species are widespread in the environment and some are considered as emerging opportunistic human and marine mammal pathogens. In this ...

journal_title：Archives of microbiology

authors： Tamez AM,McLaughlin RW,Li J,Wan X,Zheng J

更新日期：2020-10-10 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：:A highly efficient method of transposon mutagenesis was developed for genetic analysis of Xanthobacter autotrophicus Py2. The method makes use of a transposon delivery vector that encodes a hyperactive Tn 5 transposase that is 1,000-fold more active than the wild-type transposase. In this construct, the transposase is...

journal_title：Archives of microbiology

authors： Larsen RA,Wilson MM,Guss AM,Metcalf WW

更新日期：2002-09-01 00:00:00

abstract：:Polyaromatic hydrocarbons (PAHs) are considered as hazardous organic priority pollutants. PAHs have immense public concern and critical environmental challenge around the globe due to their toxic, carcinogenic, and mutagenic properties, and their ubiquitous distribution, recalcitrance as well as persistence in environ...

journal_title：Archives of microbiology

authors： Sakshi,Haritash AK

更新日期：2020-10-01 00:00:00

abstract：:The utilization of carnitine and carnitine derivatives (O-acylcarnitines, carnitine carboxylderivatives) and structure-related trimethylammonium-compounds (betaines and nitrogen-bases) by Acinetobacter calcoaceticus was studied by means of the control of growth and the quantitative detection of metabolites. The strain...

journal_title：Archives of microbiology

authors： Kleber H-P,Seim H,Aurich H,Strack E

更新日期：1977-03-01 00:00:00

abstract：:Effects of different flavonoids on various bacterial strains have been extensively reported; however, the mechanism(s) of their action on bacterial cells remain largely elusive. In this study, the antibacterial mechanism of soybean isoflavone (SI) on Staphylococcus aureus is systematically investigated using 4'6-diami...

journal_title：Archives of microbiology

authors： Wang Q,Wang H,Xie M

更新日期：2010-11-01 00:00:00

abstract：:The site of integration of phage M mu d (Ap lac) in mutant M9s which leads to deficiency of formic dehydrogenase (benzylviologen-linked) activity was determined. It was shown that the phage had inserted into the gene for the seleno-polypeptide of the enzyme (80 kd) leading to the formation of a truncated peptide (60 k...

journal_title：Archives of microbiology

authors： Pecher A,Zinoni F,Böck A

更新日期：1985-05-01 00:00:00

abstract：:Mesorhizobium tianshanense is a nitrogen-fixing bacterium that can establish symbiotic associations with Glycyrrhiza uralensis in the form of root nodules. Nodule formation in rhizobia often requires various secreted carbohydrates. To investigate exopolysaccharide (EPS) production and function in M. tianshanense, we p...

journal_title：Archives of microbiology

authors： Wang P,Zhong Z,Zhou J,Cai T,Zhu J

更新日期：2008-05-01 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：: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：:When Clostridium formicoaceticum was grown on fumarate or L-malate crude cell extracts contained a high fumarate reductase activity. Using reduced methyl viologen as electron donor the specific activity amounted to 2-3.5 U per mg of protein. Reduced benzyl viologen, FMNH2 and NADH could also serve as electron donors b...

journal_title：Archives of microbiology

authors： Dorn M,Andreesen JR,Gottschalk G

更新日期：1978-10-04 00:00:00

abstract：:Denitrification by Thiobacillus denitrificans "RT" strain was investigated using manometry and gas chromatography. 1. From nitrate, resting cells produced only nitrogen anaerobically with thiosulfate as the electron donor. The data suggest that nitrate was assimilated and dissimilated by the same nitrate reductase, as...

journal_title：Archives of microbiology

authors： Baldensperger J,Garcia JL

更新日期：1975-03-12 00:00:00

abstract：:Bacillus stearothermophilus strains PV 72 and ATCC 12980 carry a crystalline surface layer (S-layer) with hexagonal (p6) and oblique (p2) symmetry, respectively. Sites of insertions of new subunits into the regular lattice during cell growth have been determined by the indirect fluorescent antibody technique and the p...

journal_title：Archives of microbiology

authors： Gruber K,Sleytr UB

更新日期：1988-01-01 00:00:00

abstract：:The natural role of antibiotics in the ecology of Streptomyces is debated and still largely unknown. The predatory myxobacteria and many other genera of prokaryotic epibiotic and wolfpack predators across different taxa possess secondary metabolites with antimicrobial action, and these compounds have a role in predati...

journal_title：Archives of microbiology

authors： Kumbhar C,Mudliar P,Bhatia L,Kshirsagar A,Watve M

更新日期：2014-04-01 00:00:00

abstract：:Strain YIM B00363T, a Gram-positive, aerobic, non-motile, rod-shaped, spore-forming bacterium, was isolated from saline soil samples collected from a salt lake in Xinjiang province, north-west China, and was characterized using a polyphasic approach. The optimum growth temperature was 37 °C and the optimum pH was 7.5-...

journal_title：Archives of microbiology

authors： Yang L,Huang HW,Wang Y,Kou YR,Yin M,Li Y,Wang XQ,Zhao GF,Zhu WY,Tang SK

更新日期：2021-01-01 00:00:00

abstract：:Photosynthetic, nitrogen-fixing Anabaena strains play an important role in the carbon and nitrogen cycles in tropical paddy fields although they are salt sensitive. Improvement in salt tolerance of Anabaena cells by expressing glycine betaine-synthesizing genes is an interesting subject. Due to the absence of choline ...

journal_title：Archives of microbiology

authors： Waditee-Sirisattha R,Singh M,Kageyama H,Sittipol D,Rai AK,Takabe T

更新日期：2012-11-01 00:00:00

abstract：:Helcococcus kunzii is a gram-positive, catalase-negative opportunist. The organism has been isolated from the lower extremities and breast masses of several patients. A clinical isolate of Helcococcus kunzii was shown to possess a hemagglutinin-lectin with a specificity for N-acetylglucosamine and lactose, two structu...

journal_title：Archives of microbiology

authors： Stavri H,Beveridge TJ,Moyles D,Athamna A,Doyle RJ

更新日期：2002-02-01 00:00:00

abstract：:The biosynthesis of two flavoproteins, 6-hydroxy-D-nicotine oxidase with covalently bound FAD and 6-hydroxy-L-nicotine oxidase containing non-covalently bound FAD, was studied in wild-type cells and in a riboflavin-requiring mutant of Arthrobacter oxidans. In the mutant cells, the rate of synthesis and the maximal act...

journal_title：Archives of microbiology

authors： Hamm HH,Decker K

更新日期：1978-10-04 00:00:00

abstract：:CO2 is required continuously during germination of Streptomyces viridochromogenes spores. Spores incubated in a defined germination medium in the absence of CO2 remain phase bright and do not release spore carbon. In the presence of CO2, the spores initiate germination accompanied by loss of refractility and spore car...

journal_title：Archives of microbiology

authors： Grund AD,Ensign JC

更新日期：1978-09-01 00:00:00

abstract：:Saccharomyces cerevisiaepresents two alternative vegetative forms of growth, switching between yeast forms to pseudohyphal forms depending on the specific environmental conditions. To identify genes involved in cell wall morphogenesis, a haploid S. cerevisiae monomorphic mutant, W27, which exhibits pseudohyphal growth...

journal_title：Archives of microbiology

authors： Cañizares JV,Pallotti C,Saínz-Pardo I,Iranzo M,Mormeneo S

更新日期：2002-04-01 00:00:00

abstract：:Purified flagellar filaments isolated from six methanogens were composed of multiple flagellins. Two flagellins were present in Methanococcus deltae (Mr = 34,000 and 32,000), Methanoculleus marisnigri (Mr = 31,000 and 25,500) and Methanococcus jannaschii (Mr = 31,000 and 27,500), three in Methanothermus fervidus (Mr =...

journal_title：Archives of microbiology

authors： Kalmokoff ML,Koval SF,Jarrell KF

更新日期：1992-01-01 00:00:00

abstract：:Bioleaching is a promising process for 350 million tons Jinchuan low-grade pentlandite. But, Jinchuan pentlandite has lots of magnesium and high concentration of Mg2+ is harmful to bioleaching microorganisms. Thus, finding a way to improve the adaption of microorganisms to Mg2+ is a key for bioleaching. In the study, ...

journal_title：Archives of microbiology

authors： Tang D,Duan J,Gao Q,Zhao Y,Li Y,Chen P,Zhou J,Wu Z,Xu R,Li H

更新日期：2018-09-01 00:00:00

abstract：:The main property of an Amt- (ammonium transport negative) mutant of Klebsiella pneumoniae is its inability to accumulate NH4+ intracellularly. When growing on nitrogen sources other than NH4+, the mutant constantly looses NH3 by diffusion. This loss results in poor growth. The NH3 excretion suggests the existence of ...

journal_title：Archives of microbiology

authors： Castorph H,Kleiner D

更新日期：1984-10-01 00:00:00

abstract：:The Streptomyces virginiae gamma-butyrolactone autoregulator virginiae butanolide is a low-molecular-weight Streptomyces hormone eliciting virginiamycin biosynthesis through its binding to the specific receptor protein, BarA. Immediately downstream of barA lies barB, the transcription of which is tightly repressed by ...

journal_title：Archives of microbiology

authors： Matsuno K,Yamada Y,Lee CK,Nihira T

更新日期：2004-01-01 00:00:00

abstract：:1. An already published test method for detecting bactericidal substances in paper chromatograms was further improved. 2. In cultures of Cosmarium impressulum free from bacteria, two bactericidal substances were found in the ether extracts from the algae and two others in the extracts of the culture medium. The are ac...

journal_title：Archives of microbiology

authors： Söding H,Dörffling K,Mix M

更新日期：1976-06-01 00:00:00

abstract：:The main aim of our study was to determine the physiological function of NagA enzyme in the Listeria monocytogenes cell. The primary structure of the murein of L. monocytogenes is very similar to that of Escherichia coli, the main differences being amidation of diaminopimelic acid and partial de-N-acetylation of gluco...

journal_title：Archives of microbiology

authors： Popowska M,Osińska M,Rzeczkowska M

更新日期：2012-04-01 00:00:00

abstract：:A Gram reaction-negative, strictly aerobic, non-motile, translucent and rod-shaped bacterium (designated W1-2-4(T)) isolated from tap water was characterized by a polyphasic approach to clarify its taxonomic position. Strain W1-2-4(T) was observed to grow optimally at 25-30 °C and at pH 6.5 on nutrient agar. Phylogene...

journal_title：Archives of microbiology

authors： Yun SS,Siddiqi MZ,Lee SY,Kim MS,Choi K,Im WT

更新日期：2016-10-01 00:00:00

abstract：:Respiratory NADH oxidation in the rumen bacterium Prevotella bryantii is catalyzed by the Na+-translocating NADH:quinone oxidoreductase (NQR). A method for cell disruption and membrane isolation of P. bryantii under anoxic conditions using the EmulisFlex-C3 homogenizer is described. We compared NQR activity and protei...

journal_title：Archives of microbiology

authors： Schleicher L,Fritz G,Seifert J,Steuber J

更新日期：2020-07-01 00:00:00

abstract：:Given the serious threat of foodborne multidrug-resistant bacteria to animals and humans, finding an effective antibacterial compound has always been an important topic for scientists. Here, from the soil of Changbaishan, we have identified a bacterium that can inhibit the growth of Staphylococcus aureus. Nr genome da...

journal_title：Archives of microbiology

authors： Zhang H,Xu GY,Mao C,Xu Y,Dong W,Inam M,Pan S,Hu R,Wang Y,Wang Y,Ma H,Kong L

更新日期：2020-11-04 00:00:00