Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “ENTEROBACTERIACEAE”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,603 records · Page 89Linked to original sources
PubMedDate not supplied

[Similar organization of beta,beta'-subunit RNA-polymerase genes and adjacent ribosomal protein genes in Enterobacteriaceae and Pseudomonas putida].

The genes coding for the RNA-polymerase beta,beta'-subunits and adjacent ribosomal protein genes in Escherichia coli, Salmonella typhimurium, Shigella flexneri, Serratia marcescens, Proteus mirabilis and Pseudomonas putida are compared by the Southern hybridization procedure. In all the species studied close clustering of the genes rplKAJL and rpoBC is demonstrated. Preliminary physical maps for these genes in S. typhimurium, S. flexneri, S. marcescens and P. mirabilis are proposed. Rifampicin is shown to stimulate the beta,beta'-subunit synthesis in all the species studied, suggesting the existence of attenuators localized in front of the rpoBC genes. The similar arrangement of the genes rplKAJLrpoBC in a number of bacterial species is proposed to be due to common mechanisms of their coordinate expression.

Base Sequence↗
PubMed1988

[The identification and comparison of gram-negative Enterobacteriaceae and non-fermentative bacteria by the conventional manual method and the Quantum II microbiology system].

In this study a total of 1065 clinically isolated enteric and non-fermentative bacteria were tested and compared with a commercially manufactured "Quantum II Microbiology System", and the conventional manual biochemical tests. We are able to say that, "Quantum II Microbiology System" will be very useful in clinical laboratories due to making an identification in a very short time and in species level when an attentive study is made.

Bacteria↗
PubMed1987

In vitro susceptibility of nosocomial Pseudomonas aeruginosa, enterobacteriaceae, and staphylococci to ciprofloxacin and ten other broad-spectrum antibiotics.

We determined microdilution minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) for ciprofloxacin and 10 beta-lactam and aminoglycoside antibiotics against 329 unique nosocomial isolates of Pseudomonas aeruginosa, citrobacter, enterobacter, serratia, and staphylococci. All were susceptible to ciprofloxacin, including 109 aminoglycoside-resistant gram-negative bacilli and 59 oxacillin-resistant staphylococci. Ciprofloxacin was generally 2-4 fold less active against aminoglycoside-resistant isolates than against their aminoglycoside-susceptible counterparts.

Aminoglycosides↗
PubMed1988

A new member of the family Enterobacteriaceae--Pragia fontium.

Twenty isolates of the new genus and species Pragia fontium producing H2S were biochemically characterized: they gave positive gluconate oxidation, utilized Simmons citrate and 14 of them hydrolysed esculin. One of them did not produce hydrogen sulfide. Their biochemical activity was low: they did not ferment lactose, adonitol, arabinose, cellobiose, dextrin, dulcitol, erythritol, inulin, maltose, mannitol, mannose, melezitose, melibiose, raffinose, rhamnose, sorbitol, sorbose, starch, sucrose or trehalose. The habitat of Pragia fontium is drinking water, with an exception: the last strain was found in a stool specimen of a healthy woman. The type culture is the first isolate No. 20125-HG 16. It is deposited in Prague (CNCTC) under the designation Eb 11/82.

Cytosine↗
PubMed1988

Isolation of multiple antibiotic resistant Enterobacteriaceae from river water.

Water samples from the Monocacy River in Frederick County, Maryland, yielded twenty-four isolates which were resistant to tetracycline (TeR, 25 micrograms/ml). Although these organisms were not initially cultured on a coliform-selective medium, twenty-two of the isolates were Gram-negative and carriers of antibiotic resistance to five or more antibiotics; erythromycin, methicillin, novobiocin, penicillin and tetracycline. Of the isolates 45% were biochemically identified as Providencia stuartii; one isolate which contained a 29.4 kilobase plasmid carried the determinant for tetracycline resistance.

Ampicillin Resistance↗
PubMed1977

[The growth curves of enterobacteriaceae and the estimation of L-forms under the influence of cephalosporin antibiotics].

The antibacterial effectiveness of cephalothin, cefazolin, cephacetrile and cephradine was investigated on growing cultures of Klebsiella pneumoniae recording the growth curves with a biophotometer. Thereby cefazolin has a greater antibacterial activity than the other cephalosporins. By raising the dose to 100 microgram/ml after initial bactericidal effect a second growth phase was observed. Phase microscopic observation showed that this was caused by an increasing number of L-forms. This phenomenon could be observed with two other strains and seems to be a strain-specific characteristic. It occurs only using cephalosporins and isotonic nutrient media. The medical importance of the described ability of some bacteria as a factor of pathogenicity is discussed.

Cefazolin↗
PubMed1977

[The effect of resuscitation on the results obtained in identification of enterobacteriaceae by the API system (author's transl)].

During studies on the reliability of the API system, the question arose whether the small proportion of adequate results in cultures stored at 4 degrees C could be attributable to this method of storage. Therefore, the reactions of those cultures which had caused most problems were studied following periods of storage ofone day, six weeks and nine weeks at 4 degrees C, and in the freeze-dried state. Storage in particular conditions was found to have a definite effect on the reliability of the API system so that a period of resuscitation of forty-eight hours in a bouillon at 37 degrees C is required to restore the cultures to normal.

Bacteriological Techniques↗