Phylogenetic and physiological characterization of a filamentous anoxygenic photoautotrophic bacterium ' Candidatus Chlorothrix halophila' gen. nov., sp. nov., recovered from hypersaline microbial mats.

abstract：:Outer membrane vesicles (OMVs) are released from the outer membrane of Gram-negative bacteria. Moreover, Gram-positive bacteria also produce membrane-derived vesicles. As OMVs transport several bacterial components, especially from the cell envelope, their interaction with the host cell, with other bacteria or as immu...

journal_title：Archives of microbiology

authors： Avila-Calderón ED,Araiza-Villanueva MG,Cancino-Diaz JC,López-Villegas EO,Sriranganathan N,Boyle SM,Contreras-Rodríguez A

更新日期：2015-01-01 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：:YfkE, a protein from Bacillus subtilis, exhibits homology to the Ca(2+):Cation Antiporter (CaCA) Family. In a fluorescence-based assay of everted membrane vesicles prepared from Na(+)(Ca(2+))/H(+) antiporter-defective mutant Escherichia coli KNabc, YfkE exhibited robust Ca(2+)/H(+) antiport activity, with a K (m) for ...

journal_title：Archives of microbiology

authors： Fujisawa M,Wada Y,Tsuchiya T,Ito M

更新日期：2009-08-01 00:00:00

abstract：:Yeast suffers from a variety of environmental stresses, such as osmotic pressure and ethanol produced during fermentation. Since calcium ions are protective for high concentrations of ethanol, we investigated whether Ca(2+) flux occurs in response to ethanol stress. We find that exposure of yeast to ethanol induces a ...

journal_title：Archives of microbiology

authors： Courchesne WE,Vlasek C,Klukovich R,Coffee S

更新日期：2011-05-01 00:00:00

abstract：:The nitrogen-fixing bacterial strain UFLA 01-1174T was isolated from nodules of Campsiandra laurilifolia Benth. originating from the Amazon region, Brazil. Its taxonomic position was defined using a polyphasic approach. Analysis of the 16S rRNA gene placed the strain in the Bradyrhizobium genus, the closest species be...

journal_title：Archives of microbiology

authors： Cabral Michel D,Martins da Costa E,Azarias Guimarães A,Soares de Carvalho T,Santos de Castro Caputo P,Willems A,de Souza Moreira FM

更新日期：2021-01-01 00:00:00

abstract：:The synthesis of the luminous system of the marine luminous bacterium Photobacterium fischeri is subject to a complex, self-regulated control system called autoinduction. The bacteria produce an autoinducer which accumulates in the medium at a constant rate (as a function of cell growth). When autoinducer reaches a cr...

journal_title：Archives of microbiology

authors： Nealson KH

更新日期：1977-02-04 00:00:00

abstract：:The glutamate catabolism of three thermophilic syntrophic anaerobes was compared based on the combined use of [(13)C] glutamate NMR measurements and enzyme activity determinations. In some cases the uptake of intermediates from different pathways was studied. The three organisms, Caloramator coolhaasii, Thermanaerovib...

journal_title：Archives of microbiology

authors： Plugge CM,van Leeuwen JM,Hummelen T,Balk M,Stams AJ

更新日期：2001-07-01 00:00:00

abstract：:An ammonia-oxidizing, autotroph growing, slender, curved rod was isolated from the soil of Hawaii. It is well distinguishable from any other nitrifying bacteria thus far described by their morphology. The cells are 1.1-3.0 mum long and 0.3-0.4 mum wide. They are motile by means of 1-4 subpolar to lateral flagella. In ...

journal_title：Archives of microbiology

authors： Harms H,Koops HP,Wehrmann H

更新日期：1976-05-03 00:00:00

abstract：:The anticandidal potential of Geraniol (Ger) against Candida albicans has already been established. The present study reveals deeper insights into the mechanisms of action of Ger. We observed that the repertoire of antifungal activity was not only limited to C. albicans and its clinical isolates but also against non-a...

journal_title：Archives of microbiology

authors： Singh S,Fatima Z,Hameed S

更新日期：2016-07-01 00:00:00

abstract：:Xanthomonas oryzae pv. oryzae causes bacterial leaf blight, one of the most widespread and destructive bacterial diseases in rice. This study identified and characterized the contribution of the twin-arginine translocation (Tat) pathway to motility, chemotaxis, extracellular polysaccharide (EPS) production and virulen...

journal_title：Archives of microbiology

authors： Chen L,Hu B,Qian G,Wang C,Yang W,Han Z,Liu F

更新日期：2009-02-01 00:00:00

abstract：:An unique isotope labelling experiment was conducted whereby mixtures of sulfate and sulfite of different isotopic compositions were metabolized by Clostridium pasteurianum. The results showed during reduction of 1 mM SO3= plus 1 mM SO4=, essentially all evolved H2S arose from the sulfite whereas in the case of cellul...

journal_title：Archives of microbiology

authors： McCready RG,Laishley EJ,Krouse HR

更新日期：1976-09-01 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 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：:The Roseobacter clade, belonging to the family Rhodobacteraceae of the class Alphaproteobacteria, is one of the major bacterial groups in marine environments. A remarkable wealth of diverse large plasmids has been detected in members of this lineage. Here, we analysed the genome structure and extrachromosomal DNA cont...

journal_title：Archives of microbiology

authors： Pradella S,Päuker O,Petersen J

更新日期：2010-02-01 00:00:00

abstract：:Chloroquine inhibited the outgrowth of Bacillus subtilis spores at a 10-fold lower concentration than that required to prevent vegetative growth. Analysis of macromolecular synthesis in outgrowing spores and vegetative cells in the presence of chloroquine indicated that it acted preferentially on transcription. Differ...

journal_title：Archives of microbiology

authors： Smith KT,Dawes IW

更新日期：1989-01-01 00:00:00

abstract：:The halophilic archaeal strain GX71(T) was isolated from the Gangxi marine solar saltern near the Weihai city of Shandong Province, China. Cells of the strain were pleomorphic and lysed in distilled water, stained Gram-negative and formed red-pigmented colonies. Strain GX71(T) was able to grow at 25-45 °C (optimum 30 ...

journal_title：Archives of microbiology

authors： Zhang WJ,Cui HL

更新日期：2014-06-01 00:00:00

abstract：:The distribution of sex pheromone induced aggregation substance was studied on the cell surface of various Enterococcus faecalis strains. In the accompanying paper we have shown that the aggregation substance appears as a layer of hairlike structures. Using direct and indirect immunogold technique, transmission electr...

journal_title：Archives of microbiology

authors： Wanner G,Formanek H,Galli D,Wirth R

更新日期：1989-01-01 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：: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：:It was assumed for a long time that the ability to catalyze atmospheric nitrogen (diazotrophy) has a narrow distribution among actinobacteria being limited to the genus Frankia. Recently, the number of nitrogen fixation (nifH) genes identified in other non-Frankia actinobacteria has dramatically increased and has open...

journal_title：Archives of microbiology

authors： Gtari M,Ghodhbane-Gtari F,Nouioui I,Beauchemin N,Tisa LS

更新日期：2012-01-01 00:00:00

abstract：:Twelve Cry1 and two Cry9 delta-endotoxins from Bacillus thuringiensis were tested for their activity against black cutworm ( Agrotis ipsilon). A. ipsilon was not susceptible to many toxins, but three toxins had significant activity. Cry9Ca was the most toxic, followed by Cry1Aa and Cry1Fb. Hybrids between these three ...

journal_title：Archives of microbiology

authors： de Maagd RA,Weemen-Hendriks M,Molthoff JW,Naimov S

更新日期：2003-05-01 00:00:00

abstract：:Bacillus cereus F4430/73 produced the highest levels of hemolysin BL (HBL) when grown under anaerobiosis in MOD medium. Anaerobic cells grown in a chemostat at low specific growth rate (0.1-0.2 h(-1)) expressed up to sevenfold more HBL than did cells held at a faster growth rate. At 0.2 h(-1), the presence of 90 mM gl...

journal_title：Archives of microbiology

authors： Duport C,Thomassin S,Bourel G,Schmitt P

更新日期：2004-09-01 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：:ModE protein, a molybdate sensor/regulator, controls the transcription of genes coding for molybdate uptake (mod), molybdopterin synthesis (moa), molybdoenzymes nitrate reductase (nap) and dimethylsulfoxide reductase (dms), as well as fermentative dihydrogen production (fdhF and hyc) and respiratory nitrate reductase ...

journal_title：Archives of microbiology

authors： Tao H,Hasona A,Do PM,Ingram LO,Shanmugam KT

更新日期：2005-12-01 00:00:00

abstract：:A moderately psychrophilic purple non-sulfur bacterium, Rhodoferax antarcticus strain Fryx1, is described. Strain Fryx1 was isolated from the water column under the ice of the permanently frozen Lake Fryxell, Antarctica. Cells of Fryx1 are long thin rods and contain gas vesicles, the first report of such structures in...

journal_title：Archives of microbiology

authors： Jung DO,Achenbach LA,Karr EA,Takaichi S,Madigan MT

更新日期：2004-10-01 00:00:00

abstract：:The entomopathogenic mushroom Cordyceps militaris is a storehouse of various medicinal compounds and pharmacological effects. However, the high frequency of strain degeneration during subculture and preservation severely limits the large-scale production of C. militaris. DNA methylation is an important epigenomic modi...

journal_title：Archives of microbiology

authors： Xin X,Yin J,Zhang B,Li Z,Zhao S,Gui Z

更新日期：2019-04-01 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：: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：: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

abstract：:Recently, it was proposed that some antibiotics stimulate the production of reactive oxygen species (ROS), which contribute to cell death. Later, other research groups have provided arguments against ROS-mediated killing of bacteria by antibiotics. At present, there remain a number of unanswered questions in understan...

journal_title：Archives of microbiology

authors： Smirnova G,Muzyka N,Lepekhina E,Oktyabrsky O

更新日期：2016-11-01 00:00:00