cobB function is required for catabolism of propionate in Salmonella typhimurium LT2: evidence for existence of a substitute function for CobB within the 1,2-propanediol utilization (pdu) operon.

abstract：:The morphological and physiological characteristics of 20 isolates of psychrophilic Bacillus were compared with 29 strains representing nine species of mesophilic Bacillus and 2 strains of Sporosarcina ureae to determine the taxonomic position of the psychrophiles. The psychrophiles formed four distinct groups which w...

journal_title：Journal of bacteriology

authors： Larkin JM,Stokes JL

更新日期：1967-10-01 00:00:00

abstract：:Payne, W. J. (University of Georgia, Athens), and R. L. Todd. Flavin-linked dehydrogenation of ether glycols by cell-free extracts of a soil bacterium. J. Bacteriol. 91:1533-1536. 1966.-Cell-free extracts of bacterium TEG-5 grown on tetraethylene glycol dehydrogenated a variety of ether glycols and nonylphenoxy and se...

journal_title：Journal of bacteriology

authors： Payne WJ,Todd RL

更新日期：1966-04-01 00:00:00

abstract：:The SecYEG heterotrimeric membrane protein complex functions as a channel for protein translocation across the Escherichia coli cytoplasmic membrane. SecY is the central subunit of the SecYEG complex and contains 10 transmembrane segments (TM1 to TM10). Previous mutation studies suggested that TM3 and TM4 are particul...

journal_title：Journal of bacteriology

authors： Mori H,Shimokawa N,Satoh Y,Ito K

更新日期：2004-06-01 00:00:00

abstract：:Coat-stripped spores suspended in hypertonic solutions and supplied with two essential cations can be converted into viable protoplasts by lysozyme digestion of both cortex and germ cell wall. Calcium ions are necessary to prevent membrane rupture, and magnesium ions are necessary for changes indicative of hydration o...

journal_title：Journal of bacteriology

authors： Fitz-James PC

更新日期：1971-03-01 00:00:00

abstract：:Spo0A is a DNA binding protein in Bacillus subtilis required for the activation of spoIIG and other promoters at the onset of endospore formation. Activation of some of these promoters may involve interaction of Spo0A and the sigmaA subunit of RNA polymerase. Previous studies identified two single-amino-acid substitut...

journal_title：Journal of bacteriology

authors： Buckner CM,Schyns G,Moran CP Jr

更新日期：1998-07-01 00:00:00

abstract：:Fimbriae recognizing sialyl galactosides (S fimbriae) were purified from an Escherichia coli strain. The S fimbriae were morphologically identical to type 1 and P fimbriae of E. coli and showed a hemagglutination that was abolished when erythrocytes were treated with neuraminidase. Hemagglutination by the purified fim...

journal_title：Journal of bacteriology

authors： Korhonen TK,Väisänen-Rhen V,Rhen M,Pere A,Parkkinen J,Finne J

更新日期：1984-08-01 00:00:00

abstract：:Organic compounds exhibit various levels of toxicity toward living organisms based upon their ability to insert into biological membranes and disrupt normal membrane function. The primary mechanism responsible for organic solvent tolerance in many bacteria is energy-dependent extrusion via efflux pumps. One such bacte...

journal_title：Journal of bacteriology

authors： Sun X,Zahir Z,Lynch KH,Dennis JJ

更新日期：2011-06-01 00:00:00

abstract：:Cadmium-resistant Pseudomonas putida GAM-1, which was able to grow in concentrations of CdCl2 as high as 7 mM, was isolated from soil in a rice paddy. This bacterium harbored a DNA plasmid of about 52 kilobases. The plasmid (pGU100) transformed Escherichia coli C600 to cadmium resistance. A cadmium-resistant transform...

journal_title：Journal of bacteriology

authors： Horitsu H,Yamamoto K,Wachi S,Kawai K,Fukuchi A

更新日期：1986-01-01 00:00:00

abstract：:Six mycoplasma strains, isolated under anaerobic conditions from the human oropharynx, were studied by biologic and serologic means. The strains produced nippled colonies with weak hemolytic activity for guinea pig erythrocytes on agar medium. In addition, the strains metabolized arginine with a concomitant alkaline s...

journal_title：Journal of bacteriology

authors： Fox H,Purcell RH,Chanock RM

更新日期：1969-04-01 00:00:00

abstract：:The F-plasmid-encoded TraI protein, also known as DNA helicase I, is a bifunctional protein required for conjugative DNA transfer. The enzyme catalyzes two distinct but functionally related reactions required for the DNA processing events associated with conjugation: the site- and strand-specific transesterification (...

journal_title：Journal of bacteriology

authors： Matson SW,Ragonese H

更新日期：2005-01-01 00:00:00

abstract：:A mutant of Escherichia coli K-12 was examined which has growth medium-dependent lysyl-transfer ribonucleic acid (tRNA) ligase activity. In minimal medium or 0.5% yeast extract, the activity of the enzyme in the mutant strain was 5 to 10% of wild type. However, when the mutant was grown in a highly enriched medium, su...

journal_title：Journal of bacteriology

authors： Hirshfield IN,Bukald NE

更新日期：1973-01-01 00:00:00

abstract：:Quorum sensing control mediated by N-acyl homoserine lactone (AHL) signaling molecules has been established as a key feature of the regulation of exoenzyme production in many gram-negative bacteria. In Chromobacterium violaceum ATCC 31532 a number of phenotypic characteristics, including production of the purple pigme...

journal_title：Journal of bacteriology

authors： Chernin LS,Winson MK,Thompson JM,Haran S,Bycroft BW,Chet I,Williams P,Stewart GS

更新日期：1998-09-01 00:00:00

abstract：:Starvation and cell density regulate the developmental expression of Myxococcus xanthus gene 4521. Three classes of mutants allow expression of this developmental gene during growth on nutrient agar, such that colonies of strains containing a Tn5 lac Omega4521 fusion are Lac(+). One class of these mutants inactivates ...

journal_title：Journal of bacteriology

authors： Guo D,Wu Y,Kaplan HB

更新日期：2000-08-01 00:00:00

abstract：:The buoyant density in rapidly growing Streptococcus faecium 9790 cells varies over the cell cycle, in contrast to the density in Escherichia coli. Buoyant density in S. faecium was measured by using Percoll (Pharmacia Fine Chemicals, Piscataway, N.J.) density gradients. We found that the mean and coefficient of varia...

journal_title：Journal of bacteriology

authors： Glaser D,Higgins M

更新日期：1989-02-01 00:00:00

abstract：:The cytochrome c(3) of Desulfovibrio desulfuricans and that of D. vulgaris were purified to homogeneity as judged by disc gel electrophoresis and by ultracentrifugation. Both cytochromes had an oxidation-reduction potential of -205 +/- 5 mv at pH 7.0 and showed characteristic absorption bands at 525 and 553 nm in the ...

journal_title：Journal of bacteriology

authors： Drucker H,Campbell LL

更新日期：1969-10-01 00:00:00

abstract：:The par genes of unit-copy plasmids P1 and F promote equitable distribution of plasmid copies to daughter cells and can be considered to be functional analogs of eucaryotic centromeres. Composite plasmids were constructed which carry either two functional P1 par regions or one F and one P1 region. Unlike dicentric chr...

journal_title：Journal of bacteriology

authors： Austin SJ

更新日期：1984-05-01 00:00:00

abstract：:Glycerol is a primary energy source for heterotrophic haloarchaea and a major component of "salty" biodiesel waste. Glycerol is catabolized solely by glycerol kinase (encoded by glpK) to glycerol-3-phosphate (G3P) in Haloferax volcanii. Here we characterized the next critical step of this metabolic pathway: the conver...

journal_title：Journal of bacteriology

authors： Rawls KS,Martin JH,Maupin-Furlow JA

更新日期：2011-09-01 00:00:00

abstract：:We showed that the heat killing curve for exponentially growing Saccharomyces cerevisiae was biphasic. This suggests two populations of cells with different thermal killing characteristics. When exponentially growing cells separated into cell cycle-specific fractions via centrifugal elutriation were heat shocked, the ...

journal_title：Journal of bacteriology

authors： Plesset J,Ludwig JR,Cox BS,McLaughlin CS

更新日期：1987-02-01 00:00:00

abstract：:Plasmid R1 is a low-copy-number plasmid that is present at a level of about four or five copies per average cell. The copy number is controlled posttranscriptionally at the level of synthesis of the rate-limiting initiator protein RepA. In addition to this, R1 has an auxiliary system that derepresses a second promoter...

journal_title：Journal of bacteriology

authors： Olsson JA,Paulsson J,Nordström K

更新日期：2004-01-01 00:00:00

abstract：:Type 1 pili of Escherichia coli are the prototype of the somatic class of pili found on many strains of bacteria. As a first step in the genetic analysis of type 1 piliation, an extensive series of nonpiliated derivatives of E. coli K-12 strain AW405, was characterized to produce attached or free pili when examined in...

journal_title：Journal of bacteriology

authors： Swaney LM,Liu YP,To CM,To CC,Ippen-Ihler K,Brinton CC Jr

更新日期：1977-04-01 00:00:00

abstract：:Heterocysts isolated from Anabaena sp. strain 7120 with lysozyme plus sonication were permeabilized with the cationic detergent cetyltrimethylammonium bromide, and they then exhibited comparable acetylene reduction activity in the light and dark with an ATP-regenerating system plus dithionite. The detergent diminished...

journal_title：Journal of bacteriology

authors： Privalle LS,Burris RH

更新日期：1983-08-01 00:00:00

abstract：:Capsulated Haemophilus influenzae type b and two spontaneous mutants (classes I and II variants) were characterized by transmission and scanning electron microscopy. When cells were treated with type b-specific antiserum prior to manipulations for electron microscopy, sectioned capsulated cells had electron-dense, fib...

journal_title：Journal of bacteriology

authors： Doern GV,Buckmire FL

更新日期：1976-07-01 00:00:00

abstract：:In recent work, we described the excision of a large genomic region from Enterococcus faecium D344R in which the sequence from "joint" regions suggested that excision resulted from the interaction of conjugative transposon Tn916 and the related mobile element Tn5386. In the present study, we examined the ability of in...

journal_title：Journal of bacteriology

authors： Rice LB,Carias LL,Hutton-Thomas R,Rudin S

更新日期：2007-05-01 00:00:00

abstract：:Spore formation of Myxococcus xanthus can occur not only on agar plates during fruiting body formation, but also in a liquid culture by simply adding glycerol, dimethyl sulfoxide, or phenethyl alcohol to the culture. This chemically-induced spore formation occurs synchronously and much faster than that occurring durin...

journal_title：Journal of bacteriology

authors： Komano T,Inouye S,Inouye M

更新日期：1980-12-01 00:00:00

abstract：:Grown in liquid culture in the presence of a variety of structurally unrelated drugs, mycelia of wild-type Neurospora assume a colonial or semicolonial growth habit similar to that of known morphological mutants. Drugs that produce these morphological changes include atropine, theophylline, histamine, and several of t...

journal_title：Journal of bacteriology

authors： Scott WA,Solomon B

更新日期：1975-05-01 00:00:00

abstract：:Internal and surface structures of asci and ascospores were studied by transmission electron microscopy (TEM) and by scanning electron microscopy (SEM) to establish the character and number of ascospores within the ascus of Metschnikowia krissii. Enzyme digestion with snail gut enzymes and SEM examination suggested th...

journal_title：Journal of bacteriology

authors： Talens LT,Miller MW,Miranda M

更新日期：1973-07-01 00:00:00

abstract：:Although amino acid transport has been extensively studied in bacteria during the past decade, little is known concerning the transport of those amino acids that are biosynthetic intermediates or have multiple fates within the cell. We have studied homoserine and threonine as examples of this phenomenon. Homoserine is...

journal_title：Journal of bacteriology

authors： Templeton BA,Savageau MA

更新日期：1974-03-01 00:00:00

abstract：:Calcium carbonate precipitation, a widespread phenomenon among bacteria, has been investigated due to its wide range of scientific and technological implications. Nevertheless, little is known of the molecular mechanisms by which bacteria foster calcium carbonate mineralization. In our laboratory, we are studying calc...

journal_title：Journal of bacteriology

authors： Barabesi C,Galizzi A,Mastromei G,Rossi M,Tamburini E,Perito B

更新日期：2007-01-01 00:00:00

abstract：:Cells of Escherichia coli take up vitamin B(12) (cyano-cobalamin [CN-Cbl]) and iron chelates by use of sequential active transport processes. Transport of CN-Cbl across the outer membrane and its accumulation in the periplasm is mediated by the TonB-dependent transporter BtuB. Transport across the cytoplasmic membrane...

journal_title：Journal of bacteriology

authors： Cadieux N,Bradbeer C,Reeger-Schneider E,Köster W,Mohanty AK,Wiener MC,Kadner RJ

更新日期：2002-02-01 00:00:00

abstract：:Production of bacterial flagella is controlled by a multitiered regulatory system that coordinates the expression of 40 to 50 subunits and ordered assembly of these elaborate structures. Flagellar expression is environmentally controlled, presumably to optimize the benefits and liabilities of having these organelles o...

journal_title：Journal of bacteriology

authors： Markel E,Dalenberg H,Monteil CL,Vinatzer BA,Swingle B

更新日期：2018-03-12 00:00:00