Abstract:
:A number of catalase-deficient mutants of Escherichia coli which exhibit no assayable catalase activity were isolated. The only physiological difference between the catalase mutants and their parents was a 50- to 60-fold greater sensitivity to killing by hydrogen peroxide. For comparison, mutations in the xthA and recA genes of the same strains increased the sensitivity of the mutants to hydrogen peroxide by seven- and fivefold, respectively, showing that catalase was the primary defense against hydrogen peroxide. One class of mutants named katE was localized between pfkB and xthA at 37.8 min on the E. coli genome. A second class of catalase mutants was found which did not map in this region.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Loewen PCdoi
10.1128/JB.157.2.622-626.1984subject
Has Abstractpub_date
1984-02-01 00:00:00pages
622-6issue
2eissn
0021-9193issn
1098-5530journal_volume
157pub_type
杂志文章abstract::The activation of the Pm promoter of the meta operon of the TOL plasmid of Pseudomonas putida by its cognate XylS activator protein in the presence and absence of benzoate inducers has been examined in specialized Escherichia coli strains carrying Pm-lacZ fusions and the xylS gene in different configurations in which ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.11.3171-3176.1994
更新日期:1994-06-01 00:00:00
abstract::Streptococcus faecalis JH1 contains two conjugative plasmids, pJH1, an R plasmid that codes for resistance to kanamycin, streptomycin, erythromycin, and tetracycline, and pJH2, a hemolysin-bacteriocin plasmid. Strain JH1 was used as an antibiotic resistance donor in conjugation experiments with two plasmid-free S. fae...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.155.3.1094-1104.1983
更新日期:1983-09-01 00:00:00
abstract::Chloromuconate cycloisomerases of bacteria utilizing chloroaromatic compounds are known to convert 3-chloro-cis,cis-muconate to cis-dienelactone (cis-4-carboxymethylenebut-2-en-4-olide), while usual muconate cycloisomerases transform the same substrate to the bacteriotoxic protoanemonin. Formation of protoanemonin req...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.183.15.4551-4561.2001
更新日期:2001-08-01 00:00:00
abstract::Analysis of a region involved in the conjugative transfer of the lactococcal conjugative element pRS01 has revealed a bacteria] group II intron. Splicing of this lactococcal intron (designated Ll.ltrB) in vivo resulted in the ligation of two exon messages (ltrBE1 and ltrBE2) which encoded a putative conjugative relaxa...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.12.3531-3538.1996
更新日期:1996-06-01 00:00:00
abstract::Sixteen independent Azorhizobium sesbaniae ORS571 vector insertion (Vi) mutants defective in ammonium assimilation (Asm-) were selected; genomic DNA sequences flanking the insertion endpoints were cloned directly. Resulting recombinant plasmids were used to identify, by hybridization, corresponding wild-type DNA seque...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.3.1197-1204.1988
更新日期:1988-03-01 00:00:00
abstract::Preliminary evidence has been presented by Guilfoile and Hutchinson (J. Bacteriol. 174:3651-3658, 1992) suggesting that the Streptomyces glaucescens TcmR protein is a transcriptional repressor. Here, we extend that work by showing that transcription of the S. glaucescens tcmA gene is inducible by tetracenomycin C and ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.174.11.3659-3666.1992
更新日期:1992-06-01 00:00:00
abstract::Sinorhizobium meliloti is a soil bacterium capable of invading and establishing a symbiotic relationship with alfalfa plants. This invasion process requires the synthesis, by S. meliloti, of at least one of the two symbiotically important exopolysaccharides, succinoglycan and EPS II. We have previously shown that the ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.185.1.325-331.2003
更新日期:2003-01-01 00:00:00
abstract::Formate is an important energy substrate for sulfate-reducing bacteria in natural environments, and both molybdenum- and tungsten-containing formate dehydrogenases have been reported in these organisms. In this work, we studied the effect of both metals on the levels of the three formate dehydrogenases encoded in the ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00042-11
更新日期:2011-06-01 00:00:00
abstract::Clostridium perfringens type B and D isolates produce epsilon-toxin, the third most potent clostridial toxin. The epsilon-toxin gene (etx) is plasmid borne in type D isolates, but etx genetics have been poorly studied in type B isolates. This study reports the first sequencing of any etx plasmid, i.e., pCP8533etx, fro...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00939-08
更新日期:2008-11-01 00:00:00
abstract::The Aer protein in Escherichia coli is a membrane-bound, FAD-containing aerotaxis and energy sensor that putatively monitors the redox state of the electron transport system. Binding of FAD to Aer requires the N-terminal PAS domain and residues in the F1 region and C-terminal HAMP domain. The PAS domains of other PAS ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.186.20.6782-6791.2004
更新日期:2004-10-01 00:00:00
abstract::The nucleotide sequence of a 3.4-kb EcoRI-PstI DNA fragment of Xanthomonas campestris pv. campestris revealed two open reading frames, which were designated xanA and xanB. The genes xanA and xanB encode proteins of 448 amino acids (molecular weight of 48,919) and 466 amino acids (molecular weight of 50,873), respectiv...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.174.1.191-199.1992
更新日期:1992-01-01 00:00:00
abstract::Cytochrome bd oxidase operons from more than 50 species of bacteria contain a short gene encoding a small protein that ranges from ∼30 to 50 amino acids and is predicted to localize to the cell membrane. Although cytochrome bd oxidases have been studied for more than 70 years, little is known about the role of this sm...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00324-13
更新日期:2013-08-01 00:00:00
abstract::Ascospore delimitation in Saccharomyces cerevisiae is initiated by a pair of unit membranes between which the spore wall is subsequently laid down. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.113.2.1054-1057.1973
更新日期:1973-02-01 00:00:00
abstract::We have identified recD mutants of Salmonella typhimurium by their ability to support growth of phage P22 abc (anti-RecBCD) mutants, whose growth is prevented by normal host RecBCD function. As in Escherichia coli, the recD gene of S. typhimurium lies between the recB and argA genes at min 61 of the genetic map. Plasm...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.13.4092-4103.1994
更新日期:1994-07-01 00:00:00
abstract::The global regulatory protein Crc is involved in the repression of several catabolic pathways for sugars, hydrocarbons, and nitrogenated and aromatic compounds in Pseudomonas putida and Pseudomonas aeruginosa when other preferred carbon sources are present in the culture medium (catabolite repression), therefore modul...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.187.11.3678-3686.2005
更新日期:2005-06-01 00:00:00
abstract::The fermentative alcohol dehydrogenase of Escherichia coli is encoded by the adhE gene, which is induced under anaerobic conditions but repressed in air. Previous work suggested that induction of adhE might depend on NADH levels. We therefore directly measured the NAD+ and NADH levels for cultures growing aerobically ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.20.6013-6018.1996
更新日期:1996-10-01 00:00:00
abstract::Hauge, Jens G. (National Institute for Public Health, Oslo, Norway). Glucose dehydrogenation in bacteria: a comparative study. J. Bacteriol. 82:609-614. 1961.-Extracts of a series of bacteria reported to convert glucose to gluconic acid via particulate enzyme systems were fractionated by differential centrifugation in...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.82.4.609-614.1961
更新日期:1961-10-01 00:00:00
abstract::Arcobacter butzleri strain ED-1 is an exoelectrogenic epsilonproteobacterium isolated from the anode biofilm of a microbial fuel cell. Arcobacter sp. strain L dominates the liquid phase of the same fuel cell. Here we report the finished and annotated genome sequences of these organisms. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.06084-11
更新日期:2011-11-01 00:00:00
abstract::Deletions in the rpoBC region have been transferred to phage lambda and characterized in detail by genetic, structural, and functional tests. We thus extend and confirm knowledge of the organization of this part of the chromosome. The new phages are useful tools for studying the genes for the bacterial transcription a...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.140.2.479-489.1979
更新日期:1979-11-01 00:00:00
abstract:UNLABELLED:Biofilm formation is responsible for increased antibiotic tolerance in pathogenic bacteria. Cyclic di-GMP (c-di-GMP) is a widely used second-messenger signal that plays a key role in bacterial biofilm formation. c-di-GMP is synthesized by diguanylate cyclases (DGCs), a conserved class of enzymes absent in ma...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00742-15
更新日期:2015-09-28 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
pub_type: 杂志文章
doi:10.1128/jb.182.19.5381-5390.2000
更新日期:2000-10-01 00:00:00
abstract::Wild-type strains of Escherichia coli K-12 are resistant to acriflavine. Gene acrA(+) which determines resistance to acriflavine is located near the lac region of the chromosome. This gene determines not only resistance to basic dyes but also resistance to phenethyl alcohol. Acriflavine resistance was transmitted, tog...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.96.4.987-996.1968
更新日期:1968-10-01 00:00:00
abstract::A conjugation system initially discovered in beta-lactamase-producing gonococci mobilized small non-selftransmissible R plasmids encoding beta-lactamase (penicillinase) production into other gonococci, Neisseria, and Escherichia coli. This conjugation system was mediated by a separate selftransmissible plasmid of 23.9...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.134.1.278-286.1978
更新日期:1978-04-01 00:00:00
abstract::The effects of the free bile acids (FBAs) cholic acid (CA), deoxycholic acid (DCA), and chenodeoxycholic acid on the bioenergetics and growth of lactobacilli and bifidobacteria were investigated. It was found that these FBAs reduced the internal pH levels of these bacteria with rapid and stepwise kinetics and, at cert...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.188.5.1979-1986.2006
更新日期:2006-03-01 00:00:00
abstract::Daniel, John W. (University of Wisconsin, Madison), Karlee L. Babcock, Alice H. Sievert, and Harold P. Rusch. Organic requirements and synthetic media for growth of the myxomycete Physarum polycephalum. J. Bacteriol. 86:324-331. 1963.-An isolate of Physarum polycephalum was maintained in submersed pure culture in a co...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.86.2.324-331.1963
更新日期:1963-08-01 00:00:00
abstract::The effects of exogenous reducing agents on a number of biological properties of purified Chlamydia trachomatis LGV-434 and Chlamydia psittaci meningopneumonitis elementary bodies (EBs) have been examined in an attempt to identify in vitro correlates of early events in the differentiation of the infectious EB to the r...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.161.1.25-31.1985
更新日期:1985-01-01 00:00:00
abstract::Alysiella bovis adheres to surfaces by means of short, ruthenium red-staining, rod-like fimbriae. The fimbriae remain associated with the cell envelope of A. bovis, even when sonicated or exposed sequentially to toluene, Triton X-100, lysozyme, ribonuclease, and deoxyribonuclease. Adhesion of outer membrane-derived ce...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.160.2.569-576.1984
更新日期:1984-11-01 00:00:00
abstract::Divercin V41, a class IIa bacteriocin with strong antilisterial activity, is produced by Carnobacterium divergens V41. To express a recombinant version of divercin V41, we constructed a synthetic gene that encodes the mature divercin V41 peptide and then overexpressed the gene in pET-32b by using the T7 RNA polymerase...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.186.13.4276-4284.2004
更新日期:2004-07-01 00:00:00
abstract::Flagellar biogenesis and hence motility of Vibrio fischeri depends upon the presence of magnesium. In the absence of magnesium, cells contain few or no flagella and are poorly motile or nonmotile. To dissect the mechanism by which this regulation occurs, we screened transposon insertion mutants for those that could mi...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00728-06
更新日期:2006-12-01 00:00:00
abstract::The lipid A components of substrate cell origin incorporated by Bdellovibrio bacteriovorus during intraperiplasmic growth (D. R. Nelson and S. C. Rittenberg, J. Bacteriol. 147:860-868, 1981) were shown to be integrated into its lipopolysaccharide structure. Lipid A isolated from bdellovibrios grown on Escherichia coli...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.147.3.869-874.1981
更新日期:1981-09-01 00:00:00