Growth inhibition and loss of virulence in cultures of Agrobacterium tumefaciens treated with acetosyringone.

abstract：:Growth of Streptococcus faecalis in the presence of l-malate resulted in the induction of a "malic enzyme" [l-malate:nicotinamide adenine dinucleotide (NAD) oxidoreductase (decarboxylating), E.C. 1.1.1.39]. Synthesis of the malic enzyme did not appear to be subject to catabolite repression by intermediate products of ...

journal_title：Journal of bacteriology

authors： London J,Meyer EY

更新日期：1969-05-01 00:00:00

abstract：:Large amounts of sigA mRNA, encoding the primary sigma factor (PSF) in Synechocystis sp. strain PCC 6803, accumulated under standard growth conditions, while stress conditions like heat or high salinity led to a rapid decrease in sigA mRNA content. The sigB, sigC, sigD, and sigE genes, encoding PSF-like sigma factors,...

journal_title：Journal of bacteriology

authors： Tuominen I,Tyystjärvi E,Tyystjärvi T

更新日期：2003-02-01 00:00:00

abstract：:The Bacillus subtilis ferric uptake regulator (Fur) protein is the major sensor of cellular iron status. When iron is limiting for growth, derepression of the Fur regulon increases the cellular capacity for iron uptake and mobilizes an iron-sparing response mediated in large part by a small noncoding RNA named FsrA. F...

journal_title：Journal of bacteriology

authors： Smaldone GT,Revelles O,Gaballa A,Sauer U,Antelmann H,Helmann JD

更新日期：2012-05-01 00:00:00

abstract：:The synthesis of pyruvate carboxylase (PC) was studied by using quantitative immunoblot analysis with an antibody raised against PC purified from Rhodobacter capsulatus and was found to vary 20-fold depending on the growth conditions. The PC content was high in cells grown on pyruvate or on carbon substrates metaboliz...

journal_title：Journal of bacteriology

authors： Yakunin AF,Hallenbeck PC

更新日期：1997-03-01 00:00:00

abstract：:The two-component regulatory system, OmpR-EnvZ, of Escherichia coli K-12 regulates the expression of the major outer membrane porin protein, OmpF. OmpR is a DNA-binding protein which acts as both an activator and a repressor to control ompF transcription. In this article, we describe a new OmpR-binding site that is lo...

journal_title：Journal of bacteriology

authors： Huang KJ,Schieberl JL,Igo MM

更新日期：1994-03-01 00:00:00

abstract：:The Escherichia coli rluD gene encodes a pseudouridine synthase responsible for the pseudouridine (Ψ) modifications at positions 1911, 1915, and 1917 in helix 69 of 23S rRNA. It has been reported that deletion of rluD in K-12 strains of E. coli is associated with extremely slow growth, increased readthrough of stop co...

journal_title：Journal of bacteriology

authors： O'Connor M,Gregory ST

更新日期：2011-01-01 00:00:00

abstract：:To examine the role of the amino acid residues (between positions 258 and 275 and positions 297 and 298) of the alpha-subunit of RNA polymerase in TyrR-mediated activation of the mtr promoter, we have carried out in vitro transcription experiments using a set of mutant RNA polymerases with a supercoiled mtr template. ...

journal_title：Journal of bacteriology

authors： Yang J,Murakami K,Camakaris H,Fujita N,Ishihama A,Pittard AJ

更新日期：1997-10-01 00:00:00

abstract：:The glycosyltransferase (GT) module of class A penicillin-binding proteins (PBPs) and monofunctional GTs (MGTs) belong to the GT51 family in the sequence-based classification of GTs. They both possess five conserved motifs and use lipid II precursor (undecaprenyl-pyrophosphate-N-acetylglucosaminyl-N-acetylmuramoyl- pe...

journal_title：Journal of bacteriology

authors： Terrak M,Nguyen-Distèche M

更新日期：2006-04-01 00:00:00

abstract：:Carotovoricin Er is a phage-tail-like bacteriocin produced by Erwinia carotovora subsp. carotovora strain Er, a causative agent for soft rot disease in plants. Here we studied binding and killing spectra of carotovoricin Er preparations for various strains of the bacterium (strains 645Ar, EC-2, N786, and P7) and found...

journal_title：Journal of bacteriology

authors： Nguyen HA,Tomita T,Hirota M,Kaneko J,Hayashi T,Kamio Y

更新日期：2001-11-01 00:00:00

abstract：:In contrast to canonical phage endolysins, which require holin-mediated disruption of the membrane to gain access to attack the cell wall, signal anchor release (SAR) endolysins are secreted by the host sec system, where they accumulate in an inactive form tethered to the membrane by their N-terminal SAR domains. SAR ...

journal_title：Journal of bacteriology

authors： Kuty GF,Xu M,Struck DK,Summer EJ,Young R

更新日期：2010-11-01 00:00:00

abstract：:The human pathogen Eikenella corrodens expresses type IV pili and exhibits a phase variation involving the irreversible transition from piliated to nonpiliated variants. On solid medium, piliated variants form small (S-phase), corroding colonies whereas nonpiliated variants form large (L-phase), noncorroding colonies....

journal_title：Journal of bacteriology

authors： Villar MT,Hirschberg RL,Schaefer MR

更新日期：2001-01-01 00:00:00

abstract：:The symbiotic plasmid of Rhizobium etli CE3 belongs to the RepABC family of plasmid replicons. This family is characterized by the presence of three conserved genes, repA, repB, and repC, encoded by the same DNA strand. A long intergenic sequence (igs) between repB and repC is also conserved in all members of the plas...

journal_title：Journal of bacteriology

authors： Ramírez-Romero MA,Soberón N,Pérez-Oseguera A,Téllez-Sosa J,Cevallos MA

更新日期：2000-06-01 00:00:00

abstract：:Glyoxal is toxic and mutagenic α-oxoaldehyde generated in vivo as an oxidation by-product of sugar metabolism. We selected glyoxal-resistant mutants from an Escherichia coli strain lacking major glyoxal-detoxifying genes, gloA and yqhD, by growing cells in medium containing a lethal concentration of glyoxal. The mutan...

journal_title：Journal of bacteriology

authors： Kwon M,Lee J,Lee C,Park C

更新日期：2012-04-01 00:00:00

abstract：:Myxobacteria are predatory and are prolific producers of secondary metabolites. Here, we tested a hypothesized role that secondary metabolite antibiotics function as weapons in predation. To test this, a Myxococcus xanthus Δta1 mutant, blocked in antibiotic TA (myxovirescin) production, was constructed. This TA(-) mut...

journal_title：Journal of bacteriology

authors： Xiao Y,Wei X,Ebright R,Wall D

更新日期：2011-09-01 00:00:00

abstract：:Methionine auxotrophs of Saccharomyces cerevisiae continue to synthesize ribonucleic acid (RNA) after methionine withdrawal. The newly synthesized transfer RNA (tRNA) is methyl-deficient in some strains, but not in all. Whether such tRNA will accumulate depends on the position of the block in the methionine pathway th...

journal_title：Journal of bacteriology

authors： Kjellin-Stråby K

更新日期：1969-11-01 00:00:00

abstract：:In an Escherichia coli B strain missing ribosomal protein L1, the synthesis rate of L11 is 50% greater than that of other ribosomal proteins. This finding is in agreement with the previous conclusion that L1 regulates synthesis of itself and L11 and indicates that this regulation is important for maintaining the balan...

journal_title：Journal of bacteriology

authors： Jinks-Robertson S,Nomura M

更新日期：1981-03-01 00:00:00

abstract：:In Pseudomonas aeruginosa, flagellar genes are regulated in a cascade headed by FleQ, an NtrC/NifA-type activator. FleQ and RpoN positively regulate expression of flhA, fliE, fliL, and fleSR genes, among others. Direct interaction of FleQ with flhA, fliE, fliL, and fleSR promoters was demonstrated by gel shift assay, ...

journal_title：Journal of bacteriology

authors： Jyot J,Dasgupta N,Ramphal R

更新日期：2002-10-01 00:00:00

abstract：UNLABELLED:Silica is deposited in and around the spore coat layer of Bacillus cereus, and enhances the spore's acid resistance. Several peptides and proteins, including diatom silaffin and silacidin peptides, are involved in eukaryotic silica biomineralization (biosilicification). Homologous sequence search revealed a ...

journal_title：Journal of bacteriology

authors： Motomura K,Ikeda T,Matsuyama S,Abdelhamid MA,Tanaka T,Ishida T,Hirota R,Kuroda A

更新日期：2015-10-26 00:00:00

abstract：:Acid phosphatase V of Aspergillus nidulans was purified by ammonium sulfate precipitation, gel filtration, and ion-exchange chromatography. The enzyme demonstrated a charge microheterogeneity on starch and acrylamide gel electrophoresis, but proved to be homogeneous on ultracentrifugation and gel filtration. Phosphata...

journal_title：Journal of bacteriology

authors： Harsanyi Z,Dorn GL

更新日期：1972-04-01 00:00:00

abstract：:Malmgren, Richard A. (National Cancer Institute; Bethesda, Md.), Alan S. Rabson, Paula G. Carney, and Frances J. Paul. Immunofluorescence of green monkey kidney cells infected with adenovirus 12 and with adenovirus 12 plus simian virus 40. J. Bacteriol. 91:262-265. 1966.-Immunofluorescence studies of the viral antigen...

journal_title：Journal of bacteriology

authors： Malmgren RA,Rabson AS,Carney PG,Paul FJ

更新日期：1966-01-01 00:00:00

abstract：:A class of galactose-resistant mutants has been derived from strains of Salmonella typhimurium which are defective in uridine diphosphoglucose-4-epimerase. Resistant strains are phenotypically similar to parent organisms but do not lyse in the presence of galactose. Low levels of functional epimerase can be detected i...

journal_title：Journal of bacteriology

authors： Shuster CW,Rundell K

更新日期：1969-10-01 00:00:00

abstract：:Treatment of pneumococci with activator (a protein that induces bacterial "competence" to absorb deoxyribonucleic acid molecules and undergo genetic transformation) can cause either protoplast formation or leakage of intracellular components to the medium depending on postincubation conditions. The leaked intracellula...

journal_title：Journal of bacteriology

authors： Seto H,Tomasz A

更新日期：1975-01-01 00:00:00

abstract：:Branching enzyme (BE) catalyzes formation of the branch points in glycogen and amylopectin by cleavage of the alpha-1,4 linkage and its subsequent transfer to the alpha-1,6 position. We have identified a novel BE encoded by an uncharacterized open reading frame (TK1436) of the hyperthermophilic archaeon Thermococcus k...

journal_title：Journal of bacteriology

authors： Murakami T,Kanai T,Takata H,Kuriki T,Imanaka T

更新日期：2006-08-01 00:00:00

abstract：:The iota(a) component (i(a)) of Clostridium perfringens ADP ribosylates nonmuscle beta/gamma actin and skeletal muscle alpha-actin. Replacement of Arg-295 in i(a) with alanine led to a complete loss of NAD(+)-glycohydrolase (NADase) and ADP-ribosyltransferase (ARTase); that of the residue with lysine caused a drastic ...

journal_title：Journal of bacteriology

authors： Nagahama M,Sakaguchi Y,Kobayashi K,Ochi S,Sakurai J

更新日期：2000-04-01 00:00:00

abstract：:Information on the biosynthesis of phospholipids in bacteria has been derived principally from the study of Escherichia coli and other gram-negative organisms. We have now carried out a detailed study of the pathways of phospholipid biosynthesis in the gram-positive organism Bacillus megarterium KM in relation to inve...

journal_title：Journal of bacteriology

authors： Langley KE,Yaffe MP,Kennedy EP

更新日期：1979-12-01 00:00:00

abstract：:To relate the roles of Escherichia coli SSB in recombination in vivo and in vitro, we have studied the mutant proteins SSB-1 and SSB-113, the variant SSBc produced by chymotryptic cleavage, the partially homologous variant F SSB (encoded by the E. coli sex factor), and the protein encoded by gene 32 of bacteriophage T...

journal_title：Journal of bacteriology

authors： Egner C,Azhderian E,Tsang SS,Radding CM,Chase JW

更新日期：1987-08-01 00:00:00

abstract：:Micrococcus sp. strain 12B was isolated by enriching for growth with dibutylphthalate as the sole carbon and energy source. A pathway for the metabolism of dibutylphthalate and phthalate by micrococcus sp. strain 12B is proposed: dibutylphthalate leads to monobutylphthalate leads to phthalate leads to 3,4-dihydro-3,4-...

journal_title：Journal of bacteriology

authors： Eaton RW,Ribbons DW

更新日期：1982-07-01 00:00:00

abstract：:The temperature-sensitive cyr1-2 mutant in Saccharomyces cerevisiae produces low levels of adenylate cyclase and cyclic AMP at 25 degrees C and is unable to synthesize repressible acid phosphatase at 25 degrees C. Suppressor mutants of cyr1-2 were isolated by detecting acid phosphatase activity. One of the dominant su...

journal_title：Journal of bacteriology

authors： Morishita T,Uno I

更新日期：1991-04-01 00:00:00

abstract：:Strain DCB-1 is a strict anaerobe capable of reductive dehalogenation. We elucidated metabolic processes in DCB-1 which may be related to dehalogenation and which further characterize the organism physiologically. Sulfoxy anions and CO2 were used by DCB-1 as catabolic electron acceptors. With suitable electron donors,...

journal_title：Journal of bacteriology

authors： Mohn WW,Tiedje JM

更新日期：1990-04-01 00:00:00

abstract：:Loss of the ability of Pseudomonas syringae pv. "phaseolicola" NPS3121 to elicit a hypersensitive response on tobacco and other nonhost plants was associated with loss of pathogenicity on the susceptible host bean. Eight independent, prototrophic transposon Tn5 insertion mutants which had lost the ability to elicit a ...

journal_title：Journal of bacteriology

authors： Lindgren PB,Peet RC,Panopoulos NJ

更新日期：1986-11-01 00:00:00