Emergence of the P2 phenotype in Pseudomonas aeruginosa PAO1 strains involves various mutations in mexT or mexF.

abstract：:Partial denaturation of Saccharomyces cerevisiae chromosomal DNA was found to occur spontaneously during meiosis. Short regions of strand separation (300 base pairs long) were seen in DNA molecules prepared for electron microscopy by the aqueous spreading technique. These regions were clustered along the DNA. The time...

journal_title：Journal of bacteriology

authors： Klein HL,Byers B

更新日期：1978-05-01 00:00:00

abstract：:The isolation of a new thermophilic bacterium, Thermus aquaticus gen. n. and sp. n., is described. Successful enrichment requires incubation at 70 to 75 C, and the use of nutrient media relatively dilute with respect to the organic components. Strains of T. aquaticus have been isolated from a variety of thermal spring...

journal_title：Journal of bacteriology

authors： Brock TD,Freeze H

更新日期：1969-04-01 00:00:00

abstract：:The ESX-1 (ESAT-6 system 1) secretion system plays a conserved role in the virulence of diverse mycobacterial pathogens, including the human pathogen Mycobacterium tuberculosis and M. marinum, an environmental mycobacterial species. The ESX-1 system promotes the secretion of protein virulence factors to the extracytop...

journal_title：Journal of bacteriology

authors： Bosserman RE,Nicholson KR,Champion MM,Champion PA

更新日期：2019-06-21 00:00:00

abstract：:The broad-host-range IncP plasmids RP4, R68.45, RP1::Tn501, and pUB307 were transferred to acidophilic, obligately chemolithotrophic Thiobacillus ferrooxidans from Escherichia coli by conjugation. A genetic marker of kanamycin resistance was expressed in T. ferrooxidans. Plasmid RP4 was transferred back to E. coli fro...

journal_title：Journal of bacteriology

authors： Peng JB,Yan WM,Bao XZ

更新日期：1994-05-01 00:00:00

abstract：:It has been previously established that Thiobacillus neapolitanus fixes CO2 by using a form I ribulose bisphosphate carboxylase/oxygenase (RuBisCO), that much of the enzyme is sequestered into carboxysomes, and that the genes for the enzyme, cbbL and cbbS, are part of a putative carboxysome operon. In the present stud...

journal_title：Journal of bacteriology

authors： Baker SH,Jin S,Aldrich HC,Howard GT,Shively JM

更新日期：1998-08-01 00:00:00

abstract：:Changes in the cell wall of a species of Flavobacterium can be quantitated by measuring vancomycin adsorption. Treatment of the cells with ethylenediaminetetraacetic acid or tris(hydroxymethyl)aminomethane (or both) increased adsorption of the antibiotic. ...

journal_title：Journal of bacteriology

authors： Haslam DF,Best GK,Durham NN

更新日期：1970-08-01 00:00:00

abstract：:Thermus thermophilus HB8 can grow anaerobically by using a membrane-bound nitrate reductase to catalyze the reduction of nitrate as a final electron acceptor in respiration. In contrast to other denitrifiers, the nitrite produced does not continue the reduction pathway but accumulates in the growth medium after its ac...

journal_title：Journal of bacteriology

authors： Ramírez S,Moreno R,Zafra O,Castán P,Vallés C,Berenguer J

更新日期：2000-04-01 00:00:00

abstract：:The Lactococcus lactis subsp. lactis strains isolated from dairy products are auxotrophs for branched-chain amino acids (leucine, isoleucine, and valine), while most strains isolated from nondairy media are prototrophs. We have cloned and sequenced the leu genes from one auxotroph, IL1403. The sequence is 99% homologo...

journal_title：Journal of bacteriology

authors： Godon JJ,Delorme C,Bardowski J,Chopin MC,Ehrlich SD,Renault P

更新日期：1993-07-01 00:00:00

abstract：:ermC specifies an rRNA methyltransferase that confers resistance to erythromycin. The expression of this determinant is induced by the addition of erythromycin. The induction mechanism has been shown to operate posttranscriptionally, and its mechanism has been elucidated. We now show that synthesis of the ermC gene pr...

journal_title：Journal of bacteriology

authors： Denoya CD,Bechhofer DH,Dubnau D

更新日期：1986-12-01 00:00:00

abstract：:Study of the replication pattern of a number of B. subtilis 168 strains under controlled physiological conditions revealed great interstrain variation in control of replication. Replication patterns were calculated from ratios of purA16/leu-8 and purA16/metB5 transformation frequency. The thymine-independent strains a...

journal_title：Journal of bacteriology

authors： Gillin FD,Ganesan AT

更新日期：1975-09-01 00:00:00

abstract：:The activity of ribosomes from a clinical isolate of Escherichia coli, exposed to starvation for 7 days in sea salts medium, was investigated by measuring the kinetic parameters of ribosomal peptidyltransferase, by using the puromycin reaction as a model reaction. No alterations in the extent of peptide bond formation...

journal_title：Journal of bacteriology

authors： Kalpaxis DL,Karahalios P,Papapetropoulou M

更新日期：1998-06-01 00:00:00

abstract：:When Bacillus subtilis is subjected to phosphate starvation, genes of the Pho regulon are either induced or repressed. Among those induced are genes encoding alkaline phosphatases (APases). A set of isogenic mutants, with a beta-galactosidase gene transcriptionally fused to the inactivated target gene, was used to ide...

journal_title：Journal of bacteriology

authors： Prágai Z,Eschevins C,Bron S,Harwood CR

更新日期：2001-04-01 00:00:00

abstract：:Two low-molecular-weight basic proteins, termed A and B proteins, comprise about 15% of the protein of dormant spores of Bacillus megaterium. Irradiation of intact dormant spores with ultraviolet light results in covalent cross-linking of the A and B proteins to other spore macromolecules. The cross-linked A and B pro...

journal_title：Journal of bacteriology

authors： Setlow B,Setlow P

更新日期：1979-08-01 00:00:00

abstract：:Ureaplasma urealyticum cells were lysed by osmotic shock or by digitonin. The membrane fraction contained four to ten times as much protein as the cytoplasmic fraction. These values are in large excess of those reported for classical mycoplasmas, suggesting that the Ureaplasma membrane fraction was heavily contaminate...

journal_title：Journal of bacteriology

authors： Masover GK,Razin S,Hayflick L

更新日期：1977-04-01 00:00:00

abstract：:Vibrio cholerae is a highly motile bacterium which possesses a single polar flagellum as a locomotion organelle. Motility is thought to be an important factor for the virulence of V. cholerae. The genome sequencing project of this organism is in progress, and the genes that are highly homologous to the essential genes...

journal_title：Journal of bacteriology

authors： Kojima S,Yamamoto K,Kawagishi I,Homma M

更新日期：1999-03-01 00:00:00

abstract：:Evidence is presented that progametangia in both the plus and the minus mating types of Mucor mucedo can be induced by one substance, namely (-)-trisporic acid B. A method is described for the determination of the concentration of the sex factors (trisporone, trisporic acid B, trisporic acid C) in mated cultures of Mu...

journal_title：Journal of bacteriology

authors： Van den Ende H,Wiechmann AH,Reyngoud DJ,Hendriks T

更新日期：1970-02-01 00:00:00

abstract：:The bacterium Caulobacter crescentus undergoes an asymmetric cell division resulting in the formation of two different daughter cells, a motile swarmer cell and a nonmotile stalked cell. These two cell types differ in their program of gene expression, their ability to replicate DNA, and the physical properties of thei...

journal_title：Journal of bacteriology

authors： Rizzo MF,Shapiro L,Gober J

更新日期：1993-11-01 00:00:00

abstract：:Mutants of Bacillis subtilis that are temperature sensitive for RNA synthesis during sporulation were isolated after selection with a 32P suicide agent. Whole-genome sequencing revealed that two of the mutants carried an identical lesion in the rsbU gene, which encodes a phosphatase that indirectly activates SigB, the...

journal_title：Journal of bacteriology

authors： Rothstein DM,Lazinski D,Osburne MS,Sonenshein AL

更新日期：2017-06-27 00:00:00

abstract：:Caulobacter crescentus cells adhere to surfaces by using an extremely strong polar adhesin called the holdfast. The polysaccharide component of the holdfast is comprised in part of oligomers of N-acetylglucosamine. The genes involved in the export of the holdfast polysaccharide and the anchoring of the holdfast to the...

journal_title：Journal of bacteriology

authors： Toh E,Kurtz HD Jr,Brun YV

更新日期：2008-11-01 00:00:00

abstract：:The flagella of Methanococcus voltae were isolated by using three procedures. Initially, cells were sheared to release the filaments, which were purified by differential centrifugation and banding in KBr gradients. Flagella were also prepared by solubilization of cells with 1% (vol/vol) Triton X-100 and purified as de...

journal_title：Journal of bacteriology

authors： Kalmokoff ML,Jarrell KF,Koval SF

更新日期：1988-04-01 00:00:00

abstract：:Helicobacter pylori urease requires nickel ions in the enzyme active site for catalytic activity. Nickel ions must, therefore, be actively acquired by the bacterium. NixA (high-affinity nickel transport protein)-deficient mutants of H. pylori retain significant urease activity, suggesting the presence of alternate nic...

journal_title：Journal of bacteriology

authors： Hendricks JK,Mobley HL

更新日期：1997-09-01 00:00:00

abstract：:Bacterial Gre factors associate with RNA polymerase (RNAP) and stimulate intrinsic cleavage of the nascent transcript at the active site of RNAP. Biochemical and genetic studies to date have shown that Escherichia coli Gre factors prevent transcriptional arrest during elongation and enhance transcription fidelity. Fur...

journal_title：Journal of bacteriology

authors： Kusuya Y,Kurokawa K,Ishikawa S,Ogasawara N,Oshima T

更新日期：2011-06-01 00:00:00

abstract：:The dibenzofuran-degrading bacterial strain DPO360 represents a new species of the genus Terrabacter together with the previously described dibenzofuran-mineralizing bacterial strain DPO1361 (K.-H. Engesser, V. Strubel, K. Christoglou, P. Fischer, and H. G. Rast, FEMS Microbiol. Lett. 65:205-210, 1989; V. Strubel, Ph....

journal_title：Journal of bacteriology

authors： Schmid A,Rothe B,Altenbuchner J,Ludwig W,Engesser KH

更新日期：1997-01-01 00:00:00

abstract：:Candida albicans is an opportunistic pathogenic yeast which frequently develops resistance to the antifungal agent fluconazole (FCZ) in patients undergoing long-term therapy. FCZ-resistant strains often display a reduced intracellular FCZ accumulation which correlates with the overexpression of the ATP-binding cassett...

journal_title：Journal of bacteriology

authors： Alarco AM,Raymond M

更新日期：1999-02-01 00:00:00

abstract：:Strains of Escherichia coli K-12 mutant in the genes controlling excision repair (uvr) and genetic recombination (rec) have been studied with reference to their radiosensitivity and their ability to repair X-ray-induced single-strand breaks in deoxyribonucleic acid (DNA). Mutations in the rec genes appreciably increas...

journal_title：Journal of bacteriology

authors： Kapp DS,Smith KC

更新日期：1970-07-01 00:00:00

abstract：:Two temperature-sensitive sporulation mutants have been characterized. One mutant, which is blocked at stage II, has a short temperature-sensitive period that occurs at about the time when the spore septum is formed. Cells can escape the sporulation block, if incubated for a short period at the permissive temperature,...

journal_title：Journal of bacteriology

authors： Young M

更新日期：1976-05-01 00:00:00

abstract：:The bacterium Myxococcus xanthus alternates between two colony types distinguished by colony morphology and pigmentation. Because the two phases are interconvertible, this phenomenon has been termed phase variation. In one phase, the colonies are bright yellow, rough, and swarming. In the alternate phase, the colonies...

journal_title：Journal of bacteriology

authors： Laue BE,Gill RE

更新日期：1994-09-01 00:00:00

abstract：:The effect of plasmid CAM-OCT on responses to UV irradiation was compared in Pseudomonas aeruginosa, in Pseudomonas putida, and in Pseudomonas putida mutants carrying mutations in UV response genes. CAM-OCT substantially increased both survival and mutagenesis in the two species. P. aeruginosa strains without CAM-OCT ...

journal_title：Journal of bacteriology

authors： McBeth DL

更新日期：1989-02-01 00:00:00

abstract：:Mycoplasmas that are known to exhibit gliding motility possess a differentiated tip structure. This polar organelle mediates cytadherence and gliding motor activity and contains a cytoskeleton-like component that provides structural support. Here, we describe gliding motility and a unique cytoskeleton in Mycoplasma in...

journal_title：Journal of bacteriology

authors： Relich RF,Friedberg AJ,Balish MF

更新日期：2009-08-01 00:00:00

abstract：:The 2,760-base-pair (bp) PstI-EcoRI segment of the chromosome of Pseudomonas aeruginosa PA103 which carries the exotoxin A structural gene was expressed from an internal promoter when cloned in a pUC9 derivative and transformed into a nontoxigenic mutant of P. aeruginosa PAO1. The unique terminal EcoRI site was delete...

journal_title：Journal of bacteriology

authors： Tsaur ML,Clowes RC

更新日期：1989-05-01 00:00:00