Mapping of rfa Genes in Salmonella typhimurium by ES18 and P22 Transduction and by Conjugation.

abstract：:Random transposon Tn5 mutagenesis of Bradyrhizobium sp. (Arachis) strain NC92, a member of the cowpea cross-inoculation group, was carried out, and kanamycin-resistant transconjugants were tested for their symbiotic phenotype on three host plants: groundnut, siratro, and pigeonpea. Two nodulation (Nod- phenotype) muta...

journal_title：Journal of bacteriology

authors： Wilson KJ,Anjaiah V,Nambiar PT,Ausubel FM

更新日期：1987-05-01 00:00:00

abstract：:The sequential morphological events in spore formation by Clostridium perfringens type D were observed in Ellner's medium where 80 to 100% of the cells formed spores. Gross structural changes were studied with the light microscope under phase-contrast, and in fixed cells by the use of both nigrosin and Giemsa preparat...

journal_title：Journal of bacteriology

authors： Hoeniger JF,Stuart PF,Holt SC

更新日期：1968-11-01 00:00:00

abstract：:The transglycosylation step of cell wall synthesis is a prime antibiotic target because it is essential and specific to bacteria. Two antibiotics, ramoplanin and moenomycin, target this step by binding to the substrate lipid II and the transglycosylase enzyme, respectively. Here, we compare the ramoplanin and moenomyc...

journal_title：Journal of bacteriology

authors： Salzberg LI,Luo Y,Hachmann AB,Mascher T,Helmann JD

更新日期：2011-10-01 00:00:00

abstract：:Relatively high transfo mation frequencies were obtained with Micrococcus lysodeikticus cells, previou[ill]sly grown in defined broth, with a tris(hydroxymethyl)-aminomethane-glutamate b uffer containing Mg(++), Ca(++), Ba(++), or Sr(++). ...

journal_title：Journal of bacteriology

authors： Kloos WE

更新日期：1969-06-01 00:00:00

abstract：:A number of gram-negative bacteria have a quorum-sensing system and produce N-acyl-l-homoserine lactone (AHL) that they use them as a quorum-sensing signal molecule. Pantoea ananatis is reported as a common colonist of wheat heads at ripening and causes center rot of onion. In this study, we demonstrated that P. anana...

journal_title：Journal of bacteriology

authors： Morohoshi T,Nakamura Y,Yamazaki G,Ishida A,Kato N,Ikeda T

更新日期：2007-11-01 00:00:00

abstract：:Accumulation of abnormal proteins in cells of bacteria or eukaryotes can induce synthesis of a set of heat shock proteins. We examined such induction following addition of azetidine (a proline analog) or synthesis of a heterologous protein (human prourokinase) in Escherichia coli. Synthesis of heat shock proteins unde...

journal_title：Journal of bacteriology

authors： Kanemori M,Mori H,Yura T

更新日期：1994-09-01 00:00:00

abstract：:The twisting and writhing during growth of single-cell filaments of Bacillus subtilis which lead to macrofiber formation was studied in both left- and right-handed forms of strains FJ7 and RHX. Filament bending, touching, and loop formation (folding), followed by winding up into a double-strand fiber, were documented....

journal_title：Journal of bacteriology

authors： Mendelson NH,Thwaites JJ,Kessler JO,Li C

更新日期：1995-12-01 00:00:00

abstract：:Differential expression of genes within the puf photosynthesis operon of Rhodobacter capsulatus is achieved primarily through marked segmental differences in stability within the polycistronic puf operon transcripts. The comparatively stable pufBA segment of these transcripts outlives the labile pufLMX segment and acc...

journal_title：Journal of bacteriology

authors： Chen CY,Belasco JG

更新日期：1990-08-01 00:00:00

abstract：:Pneumocystis carinii remains an important opportunistic fungal pathogen causing life-threatening pneumonia in patients with AIDS and malignancy. Currently, little is known about how the organism adapts to environmental stresses and maintains its cellular integrity. We recently discovered an open reading frame approxim...

journal_title：Journal of bacteriology

authors： Kottom TJ,Thomas CF Jr,Limper AH

更新日期：2001-12-01 00:00:00

abstract：:The type III secretion (T3S) system is essential to the virulence of a large number of Gram-negative bacterial pathogens, including Yersinia. YscO is required for T3S in Yersinia and is known to interact with several other T3S proteins, including the chaperone SycD and the needle length regulator YscP. To define which...

journal_title：Journal of bacteriology

authors： Mukerjea R,Ghosh P

更新日期：2013-10-01 00:00:00

abstract：:In Escherichia coli K-12, two enzymes, encoded by ilvE and tyrB, catalyze the amination of 2-ketoisocaproate (2-KIC) to form leucine. Although leucine-requiring derivatives of an ilvE strain that are unable to grow on 2-KIC were expected to have mutations only in tyrB, mapping studies showed that one such mutation was...

journal_title：Journal of bacteriology

authors： Vartak NB,Liu L,Wang BM,Berg CM

更新日期：1991-06-01 00:00:00

abstract：:Treick, R. W. (Indiana University, Bloomington), and W. A. Konetzka. Physiological state of Escherichia coli and the inhibition of deoxyribonucleic acid synthesis by phenethyl alcohol. J. Bacteriol. 88:1580-1584. 1964.-The effects of concentration of phenethyl alcohol (PEA) and the physiological state of the cells on ...

journal_title：Journal of bacteriology

authors： TREICK RW,KONETZKA WA

更新日期：1964-12-01 00:00:00

abstract：:The alpha-aminoadipate pathway for lysine biosynthesis is present only in fungi. The alpha-aminoadipate reductase (AAR) of this pathway catalyzes the conversion of alpha-aminoadipic acid to alpha-aminoadipic-delta-semialdehyde by a complex mechanism involving two gene products, Lys2p and Lys5p. The LYS2 and LYS5 genes...

journal_title：Journal of bacteriology

authors： Guo S,Evans SA,Wilkes MB,Bhattacharjee JK

更新日期：2001-12-01 00:00:00

abstract：:The so-called symbiotic region of the Bradyrhizobium japonicum chromosome (C. Kündig, H. Hennecke, and M. Göttfert, J. Bacteriol. 175:613-622, 1993) was screened for the presence of genes controlled by the nitrogen fixation regulatory protein NifA. Southern blots of restriction enzyme-digested cosmids that represent a...

journal_title：Journal of bacteriology

authors： Nienaber A,Huber A,Göttfert M,Hennecke H,Fischer HM

更新日期：2000-03-01 00:00:00

abstract：:Agrobacterium tumefaciens and Agrobacterium rhizogenes are related pathogens that cause crown gall and hairy root diseases, which result from integration and expression of bacterial genes in the plant genome. Single-stranded DNA (T strands) and virulence proteins are translocated into plant cells by a type IV secretio...

journal_title：Journal of bacteriology

authors： Hodges LD,Lee LY,McNett H,Gelvin SB,Ream W

更新日期：2009-01-01 00:00:00

abstract：:The extent and nature of DNA polymorphism in the mutS-rpoS region of the Escherichia coli genome were assessed in 21 strains of enteropathogenic E. coli (EPEC) and enterohemorrhagic E. coli (EHEC) and in 6 strains originally isolated from natural populations. The intervening region between mutS and rpoS was amplified ...

journal_title：Journal of bacteriology

authors： Herbelin CJ,Chirillo SC,Melnick KA,Whittam TS

更新日期：2000-10-01 00:00:00

abstract：:RSF1010 plasmid DNA was introduced into Pseudomonas putida and P. aeruginosa cells and maintained stably, suggesting the potential usefulness of this plasmid as a vector in Pseudomonas species. The number of copies of RSF1010 was 43 per chromosome equivalent in P. putida cells. ...

journal_title：Journal of bacteriology

authors： Nagahari K,Sakaguchi K

更新日期：1978-03-01 00:00:00

abstract：:Dehalogenases play key roles in the detoxification of halogenated aromatics. Interestingly, only one hydrolytic dehalogenase for halogenated aromatics, 4-chlorobenzoyl-coenzyme A (CoA) dehalogenase, has been reported. Here, we characterize another novel hydrolytic dehalogenase for a halogenated aromatic compound from ...

journal_title：Journal of bacteriology

authors： Wang G,Li R,Li S,Jiang J

更新日期：2010-06-01 00:00:00

abstract：:We present experimental evidence for the existence of multiple activator-binding sites in the upstream sequence of the ompC promoter, the expression of which is activated by the positive regulator OmpR in response to the osmolarity of the medium. We also found that a single OmpR-binding site can activate the ompC prom...

journal_title：Journal of bacteriology

authors： Maeda S,Mizuno T

更新日期：1990-01-01 00:00:00

abstract：:A new insertion sequence (IS element), IS1411, was identified downstream of the phenol degradation genes pheBA that originated from plasmid DNA of Pseudomonas sp. strain EST1001. According to sequence analysis, IS1411 belongs to a new family of IS elements that has recently been named the ISL3 family (J. Mahillon and ...

journal_title：Journal of bacteriology

authors： Kallastu A,Hõrak R,Kivisaar M

更新日期：1998-10-01 00:00:00

abstract：:Synchrony in phototrophic cultures of Rhodospirillum rubrum was induced by stationary-phase cycling or by alterations in light intensity. Intracytoplasmic chromatophore membranes were prepared by differential centrifugation. Analysis of the composition of chromatophores obtained from cells at different times indicated...

journal_title：Journal of bacteriology

authors： Myers CR,Collins ML

更新日期：1986-06-01 00:00:00

abstract：:In Escherichia coli, the following genes are involved in motility and chemotaxis. The H gene is the structural gene for flagellin. Mutation in the mot gene results in paralysis of the flagella, and mutation in the fla genes leads to an absence of flagella. The cheA, cheB, and cheC genes are required for chemotaxis. Th...

journal_title：Journal of bacteriology

authors： Armstrong JB,Adler J

更新日期：1969-01-01 00:00:00

abstract：:The mechanisms involved in the virulence of Yersinia pestis, the plague pathogen, are not fully understood. In previous research, we found that a Y. pestis mutant lacking the HicB3 (YPO3369) putative orphan antitoxin was attenuated for virulence in a murine model of bubonic plague. Toxin-antitoxin systems (TASs) are w...

journal_title：Journal of bacteriology

authors： Bibi-Triki S,Li de la Sierra-Gallay I,Lazar N,Leroy A,Van Tilbeurgh H,Sebbane F,Pradel E

更新日期：2014-11-01 00:00:00

abstract：:In Salmonella typhimurium, three groups of genes located in rfb, rfe, and rff clusters are known to be involved in the biosynthesis of the enterobacterial common antigen. We found that enzymatic synthesis of uridine diphosphate N-acetylmannosaminouric acid, the activated form of a constituent sugar of the common antig...

journal_title：Journal of bacteriology

authors： Lew HC,Nikaido H,Mäkelä PH

更新日期：1978-10-01 00:00:00

abstract：:A novel tungstate and molybdate binding protein has been discovered from the hyperthermophilic archaeon Pyrococcus furiosus. This tungstate transport protein A (WtpA) is part of a new ABC transporter system selective for tungstate and molybdate. WtpA has very low sequence similarity with the earlier-characterized tran...

journal_title：Journal of bacteriology

authors： Bevers LE,Hagedoorn PL,Krijger GC,Hagen WR

更新日期：2006-09-01 00:00:00

abstract：:phiYeO3-12 is a T3-related lytic bacteriophage of Yersinia enterocolitica serotype O:3. The nucleotide sequence of the 39,600-bp linear double-stranded DNA (dsDNA) genome was determined. The phage genome has direct terminal repeats of 232 bp, a GC content of 50.6%, and 54 putative genes, which are all transcribed from...

journal_title：Journal of bacteriology

authors： Pajunen MI,Kiljunen SJ,Söderholm ME,Skurnik M

更新日期：2001-03-01 00:00:00

abstract：:The position of the termination codon in lacZX90 was determined by isolation of a lac+ revertant. Lysine was found to replace tyrosine at position 1,012 of beta-galactosidase, indicating that X90 protein lacked the carboxyl-terminal 10 residues. A heat- and urea-sensitive hybrid enzyme was formed in vivo when supC, wh...

journal_title：Journal of bacteriology

authors： Mandecki W,Fowler AV,Zabin I

更新日期：1981-08-01 00:00:00

abstract：:The terminus region of the Caulobacter crescentus chromosome and the dif chromosome dimer resolution site were characterized. The Caulobacter genome contains skewed sequences that abruptly switch strands at dif and may have roles in chromosome maintenance and segregation. Absence of dif or the XerCD recombinase result...

journal_title：Journal of bacteriology

authors： Jensen RB

更新日期：2006-08-01 00:00:00

abstract：:Strains missing several genes required for chemotaxis toward amino acids, peptides, and certain sugars were tethered and their rotational behavior was analyzed. Null strains (called gutted) were deleted for genes that code for the transducers Tsr, Tar, Tap, and Trg and for the cytoplasmic proteins CheA, CheW, CheR, Ch...

journal_title：Journal of bacteriology

authors： Wolfe AJ,Conley MP,Kramer TJ,Berg HC

更新日期：1987-05-01 00:00:00

abstract：:Many pathogenic bacteria translocate virulence factors into their eukaryotic hosts by means of type IV secretion systems (T4SS) spanning the inner and outer membranes. Genes encoding components of these systems have been identified within the order Rickettsiales based upon their sequence similarities to other prototyp...

journal_title：Journal of bacteriology

authors： Crosby FL,Munderloh UG,Nelson CM,Herron MJ,Lundgren AM,Xiao YP,Allred DR,Barbet AF

更新日期：2020-11-04 00:00:00