moxalactam (ly127935), a new semisynthetic 1-oxa-beta-lactam antibiotic with remarkable antimicrobial activity: in vitro comparison with cefamandole and tobramycin.moxalactam (ly127935) exhibited greater in vitro activity than cefamandole and tobramycin against clinical isolates of enterobacteriaceae, aeromonas hydrophila, and pseudomonas maltophilia. the activities of the three drugs against other microorganisms were as follows: for staphylococci, cefamandole = tobramycin greater than moxalactam; for streptococci, cefamandole greater than moxalactam greater than tobramycin; and for pseudomonas aeruginosa, tobramycin greater than moxalactam greater than ce ...19806446880
in vitro activity of cefoperazone against nonfermenters and aeromonas hydrophila.the in vitro activity of cefoperazone against 380 strains (33 species and unnamed groups) of nonferenters and 20 strains of aeromonas hydrophila was studied by a microdilution method of determining minimal inhibitory concentrations. for comparison, the activities of ampicillin, ticarcillin, and cefamandole were simultaneously studied. cefoperazone was the most active drug against pseudomonas sp., achromobacter xylosoxidans, flavobacterium meningosepticum. flavobacterium sp. (group iib), group iv ...19806448581
bacterial survival in a dilute environment.bacteria were isolated from lake water, and their ability to remain viable in a dilute, nutrient-deficient environment was tested by a method that permits suspension of test bacteria between two appressed microporous membranes in an aqueous environment. this approach permitted separation of the lake isolates into two categories. members of the tribe klebsielleae were shown to have a prolonged survival rate of 40% or better after 24 h, whereas nonsurvivors were not viable for much longer than 24 ...19816454390
[antibiotic sensitivity and other properties of bacteria of the genus aeromonas].antibiotic sensitivity and other biological properties of aeromonas and nad-vibrios isolated from water of open waterbodies were studied comparatively. it was found that the organisms of these genera had a definite similarity with respect to antibiotic sensitivity, morphological, cultural and some antigenic properties. the differences in the antibiotic sensitivity of these organisms were not sufficient for definition of the taxonomic features.19826460468
[spoilage microorganisms encountered in ultra-high temperature processed milk].40 strains of aerobic or facultative anaerobic microorganisms were isolated from a total of 37 spoiled ultra high temperature processed milk. 13 of them were identified as the genus bacillus. they were 6 b. cereus, 5 b. licheniformis, 1 b. brevis and 1 b. pumilus. the other 27 strains were nonsporeforming microorganisms, which included 5 yeasts, 2 pseudomonas sp., 3 streptococcus sp., 12 lactobacillus sp., 1 shigella sp., 1 aeromonas sp. and 3 micrococcus sp. results indicate that the spoilage o ...19846468029
[distribution of enterobacteria in soil following irrigation with waste water].the filtration of wastewater after irrigation by sandy soil in the area of the braunschweig sewage utilization association was investigated. for that purpose, the concentrations of gram-negative aerobe rods were determined in soil samples of 15 cm, 30 cm, 45 cm, 60 cm, 75 cm, 90 cm, 105 cm, 120 cm, 135 cm, and 150 cm depth immediately after an irrigation of about 50 mm wastewater during the vegetation (3 series), the vegetationless period (6 series), after one week (3 series) and after two weeks ...19846475379
[aeromonas hydrophila septicemia: 3 cases, 1 with mediastinitis].three cases of aeromonas hydrophila septicaemia are reported. the first case concerned a 51 years old patient suffering from drowning who had previously been in good health and who died after a few days of refractory hypoxaemia. the second case was an 8 years old child with trisomy 21 operated for a congenital cardiac defect. the portal of entry was a catheter and the septicaemia was complicated by a. hydrophila mediastinitis, a complication which has not been described previously. the third cas ...19846476665
difference in the extracellular products of two strains of aeromonas hydrophila virulent and weakly virulent for this study we first compared the toxigenic profile of aeromonas hydrophila strains virulent and weakly virulent for rainbow trout. the separation of the toxic factor for fish is also described. both strains produced hemolytic, enterotoxic, and dermonecrotic activities; the weakly virulent strain produced 20 times more hemolysin. only the cell-free supernatant of the virulent strain produced a toxic factor for fish. after passage on sephacryl s-200, the toxic factor for fish was separated from ...19846478313
nucleotide base sequence of vibrionaceae 5 s rrna.nucleotide base sequences of 5 s rrnas isolated from vibrio vulnificus, vibrio anguillarum, and aeromonas hydrophila were determined. comparisons among these and sequences of 5 s rrnas from other species of vibrionaceae provide information useful in the evaluation of the evolution of bacterial species.19846479333
purification and some properties of aeromonas hydrophila hemolysin.a hemolysin produced by a strain of aeromonas hydrophila isolated from a patient with diarrhea was purified by acid precipitation and quarternary aminoethyl-sephadex chromatography. the molecular weight of the hemolysin was estimated at 50,000 by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and at 48,000 by sephadex g-100 gel filtration. in polyacrylamide gel electrophoresis at ph 4.0 and sodium dodecyl sulfate-polyacrylamide gel electrophoresis, the hemolysin migrated as a single b ...19846480102
thromboxane interaction with cardiopulmonary dysfunction in graded bacterial sepsis.the relationship between plasma levels of thromboxane a2, radioimmunoassayed as thromboxane b2 (txb), and cardiopulmonary dysfunction in graded bacterial sepsis was investigated. five adult female pigs under anesthesia were intubated and allowed to breathe room air spontaneously. femoral arterial, venous, and pulmonary artery catheters were inserted. after a 60-minute control period aeromonas hydrophila (1.0 x 10(9)/ml) was infused intravenously at 0.2 ml/kg/hr, gradually increasing to 4.0 ml/kg ...19846481830
isolation of aeromonas spp. from an unchlorinated domestic water supply.the recovery of aeromonas spp. from the unchlorinated water supply for a western australian city of 21,000 people was monitored at several sampling points during a period of 1 year. membrane filtration techniques were used to count colonies of aeromonas spp., coliforms, and escherichia coli in water sampled before entry to service reservoirs, during storage in service reservoirs, and in distribution systems. aeromonas spp. were identified by subculture on blood agar with ampicillin, oxidase test ...19846486783
the occurrence of aeromonas hydrophila in avian diagnostic submissions.twenty isolations of aeromonas hydrophila were made from 15 species of free-living, commercial, and companion birds submitted for routine diagnostic postmortem examination. seventy percent of the isolations were made from november through march during the 25-month survey period.19846487200
structure of the lipopolysaccharide core isolated from a human strain of aeromonas hydrophila.lipopolysaccharide was isolated from the cell-walls of a human strain of aeromonas hydrophila by the aqueous phenol method in 0.58% yield (based on dry weight of bacteria). the lipopolysaccharide consisted of sr-polysaccharide, core-oligosaccharide and lipid a; there was no o-specific polysaccharide. the core had the composition d-galactose, d-glucose, d-glycero-d-manno-heptose, l-glycero-d-manno-heptose and d-glucosamine in a molar ratio of 1:1:2:4:1. glucosamine was linked to an l-glycero-d-ma ...19846489347
action of a microbial glycerophospholipid:cholesterol acyltransferase on plasma from normal and lcat-deficient subjects.the action of a bacterial acyltransferase similar in overall reaction mechanism to the plasma enzyme lecithin:cholesterol acyltransferase (lcat) has been studied using normal plasma and lipoproteins and plasma from lcat-deficient patients. the microbial enzyme (gcat) catalyzed acyl transfer using phosphatidylcholine and cholesterol in all of the lipoprotein fractions, presumably because it has no apolipoprotein cofactor. in addition, the enzyme was capable of hydrolyzing cholesteryl ester in lip ...19846491538
furunculosis in rainbow trout (salmo gairdneri) raised in sea water.ulcerative skin lesions were encountered in rainbow trout raised in sea water by a commercial concern in the western cape, south africa. grossly, the lesions resembled furunculosis but, histopathologically, they differed from typical furunculosis in that bacterial colonies were rarely found in the organs, and also the kidneys and spleens were minimally involved. the causative organism was identified as an achromogenic aeromonas salmonicida that shared characteristics with all 3 subspecies, salmo ...19846493730
aeromonas toxins. 19846494019
aeromonas infection in an infant with aplastic anemia. 19846494020
cloning of enterotoxin gene from aeromonas hydrophila provides conclusive evidence of production of a cytotonic enterotoxin.culture filtrates of two aeromonas hydrophila strains which were isolated from patients with diarrhea and assumed to be causative agents of the infections were shown to contain enterotoxic, cytotoxic, and hemolytic activities. modest heat treatment of the filtrates inactivated the cytotoxic and cytolytic activities, but not the enterotoxic activity. the construction of cosmid gene banks in escherichia coli of dna from both a. hydrophila strains demonstrated that the determinants of the three act ...19846500697
aeromonas hydrophila colitis in a child.a 5-year-old girl presented with chronic bloody diarrhea. evaluation including sigmoidoscopy, rectal biopsy, and barium enema was consistent with the diagnosis of ulcerative colitis. culture of the stool grew aeromonas hydrophila. a. hydrophila colitis may be more common than presently realized.19846502383
media for isolation of aeromonas spp. from faeces.five solid media were evaluated for isolation of aeromonas spp. from faeces: desoxycholate citrate agar (dca), macconkey's agar (mac), xylose-desoxycholate-citrate agar (xdca), rogol's medium (rog), which contained ampicillin 20 mg/l and p-nitrophenyl-glycerine 25 mg/l as inhibitors, and blood agar (ba) with ampicillin 10 mg/l. false negative oxidase tests limited the usefulness of dca and mac and, although the use of xdca avoided the problem of fermentation of lactose, some aeromonas spp. faile ...19846502678
production of cholera-like enterotoxin by aeromonas hydrophila.a total of 249 strains of mesophilic aeromonas including 179 a. hydrophila and 70 a. caviae were tested for production of cholera-like enterotoxin by reversed passive latex agglutination (rpla) assay. a cholera-like enterotoxin neutralized with cholera antitoxin was demonstrated in the culture filtrates from eight (4.5%) of the 179 a. hydrophila strains, while none of a. caviae strains revealed the enterotoxin production in the test. production of the cholera-like enterotoxin in the eight strain ...19846503026
isolation of enterotoxigenic, hemolytic, and antibiotic-resistant aeromonas hydrophila strains from infected fish in bangladesh.strains of aeromonas hydrophila isolated from skin infections of common freshwater fish in bangladesh were tested for enterotoxin production, hemolysin production, and any correlation between these two activities. we also tested the resistance patterns of a. hydrophila to different drugs, especially in relation to ampicillin. the a. hydrophila strains produced an enterotoxin that was related to their beta-hemolytic activities. production of beta-hemolysin may thus be an indicator of enterotoxici ...19846508295
plasmid coding for transferable drug resistance in bacteria isolated from cultured rainbow trout.the occurrence of drug resistance and plasmid-mediated transferability was investigated in 170 strains belonging to eight bacterial groups isolated from cultured rainbow trout. it was found that 87.6% of the strains were resistant to at least one drug, with the highest percentages of resistance being detected for ampicillin (54.7%), sulfadiazine (46.5%), nitrofurantoin (38.2%), and chloramphenicol (37.0%). six enterobacteria, two vibrio, and one aeromonas isolate transferred resistance factors t ...19846508296
aeromonas septicemia with shock in children with thalassemias. 19846512449
value of blood agar for primary plating and clinical implication of simultaneous isolation of aeromonas hydrophila and aeromonas caviae from a patient with gastroenteritis.the simultaneous recovery of aeromonas hydrophila and aeromonas caviae from the stool of a 49-year-old woman with watery diarrhea was facilitated through the use of a blood agar medium which detected the hemolytic capability of a. hydrophila. in vitro phenotypic tests support the conclusion that only the a. hydrophila isolate was clinically significant.19846520231
surface layer virulence a-proteins from aeromonas salmonicida strains.superficial surface layer proteins (a-proteins) were present on diverse isolates of aeromonas salmonicida which differed both physiologically and in pathogenesis. three of these proteins were purified directly from the surface of whole cells or from outer membrane preparations. these a-proteins were unusually hydrophobic (45-47%) and of similar but not identical molecular mass (49, 50, and 51 kdaltons). they were nearly identical in amino acid composition and were highly conserved, but not ident ...19846525563
phylogenetic relationships among vibrio anguillarum plasmids.results of restriction endonuclease analysis and southern blot hybridization suggest that the r-plasmids from vibrio anguillarum strains isolated in japan can be divided into at least four groups of homology depending on the time of their isolation and geographical source. molecular cloning experiments allowed identification of specific restriction endonuclease fragments carrying the genes for either cmr or tcr as the common sequences between some of these groups of r-plasmids. the cmr region fr ...19846528000
aeromonas hydrophilia tenosynovitis in an immunocompromised host. 19846536592
o-serogrouping scheme for mesophilic aeromonas strains.the o-antigens of 307 strains of mesophilic aeromonas including 227 a. hydrophila and 80 a. caviae were studied and 44 o-serogroups defined among them. the presence of heat-labile masked antigen, which inhibits o-agglutination, was observed in some strains. as all the o-antisera prepared with these mesophilic aeromonas strains contained some r-antibody, all diagnostic o-antisera must be absorbed with r-organisms before use. some of the o-antigens were found to be identical or closely related to ...19846536785
[aeromonas hydrophila: epidemiological study in the area around rome]. 19846536924
brief report: bacteriological sampling of telephones and other hospital staff hand-contact an acute-care general hospital, 114 telephones, intercoms, dictaphones, and bedpan flusher handles were sampled in patient-care areas for type of bacterial contamination. nine of these (7%) demonstrated potentially pathogenic bacteria including klebsiella, enterobacter, pseudomonas and aeromonas. inanimate, environmental, staff hand-contact objects were only lightly contaminated, did not represent a significant reservoir of gram-negative organisms, and therefore, would be unlikely to be a veh ...19846568216
enterotoxigenic aeromonas hydrophila and diarrhoea in adults.aeromonas hydrophila was isolated from the faeces of 32 patients during a nine month period in three hospitals in western australia. all 32 isolates produced enterotoxin which was detected by the suckling-mouse test, and all patients except one had diarrhoea. treatment should be considered in patients with chronic diarrhoea and in those with malignant disease or with hepatobiliary disease who are at risk of developing aeromonas septicaemia.19836571519
aeromonas hydrophila gastroenteritis. 19836580875
aeromonas hydrophila and plesiomonas shigelloides endophthalmitis. 19836604458
enterobacteriaceae and aeromonas hydrophila in minnesota frogs and tadpoles (rana pipiens).in 222 rana pipiens frogs and 34 tadpoles captured in and near minnesota, aeromonas hydrophila and 29 species of enterobacteriaceae, including yersinia enterocolitica and salmonella arizonae, were isolated from intestines. the prevalence of members of the family enterobacteriaceae was lowest in frogs captured in early spring and highest in frogs captured in late summer.19836607034
aeromonas hydrophila: a treatable cause of diarrhea. 19846607454
microbial growth associated with granular activated carbon in a pilot water treatment facility.the microbial dynamics associated with granular activated carbon (gac) in a pilot water treatment plant were investigated over a period of 16 months. microbial populations were monitored in the influent and effluent waters and on the gac particles by means of total plate counts and atp assays. microbial populations between the influent and effluent waters of the gac columns generally increased, indicating microbial growth. the dominant genera of microorganisms isolated from interstitial waters a ...19836625567
aeromonas hydrophila myonecrosis and gas gangrene in a nonimmunocompromised host.aeromonas hydrophila myonecrosis with gas gangrene and bacteremia developed in an elderly patient after minor trauma from a fishbone. despite aggressive medical and surgical therapy, she experienced a rapidly fatal outcome. literature on aeromonas muscle infection is reviewed and implications for therapy are discussed.19836625789
the role of aeromonas in acute diarrhoeal diseases in nigeria. 19836627379
differential susceptibility of aeromonas hydrophila and enterobacteriaceae to nalidixic acid.the susceptibility of 49 strains of aeromonas hydrophila and 77 strains of enterobacteriaceae towards nalidixic acid was compared by tube dilution and agar diffusion methods. a higher susceptibility was exhibited by aerom. hydrophila and no overlap in mics was found for strains of the two groups of microorganisms. discs containing 0.25 microgram of nalidixic acid produced measurable zones of growth inhibition with aerom. hydrophila and no zones with the enterobacteriaceae. the use of a disc with ...19836630110
acquisition of iron by aeromonas salmonicida.the ability of six typical and three atypical strains of aeromonas salmonicida to sequester fe3+ from the high-affinity iron chelators ethylenediaminedihydroxy-phenylacetic acid, lactoferrin, and transferrin was determined. typical strains were readily able to sequester fe3+ and used two different mechanisms. one mechanism was inducible and appeared to involve production of a low-molecular-weight soluble siderophore(s). iron uptake by this mechanism was strongly inhibited by ferricyanide. one vi ...19836630151
[antibiotic sensitivity of bacteria of the family vibrionaceae isolated from the intestines of swine].bacteria of aeromonas hydrophila subsp., biotype 1 and aeromonas anaerogenes, biotype 2, as well as proteolitica of the vibrio pasahumoliticus biotype were isolated from the intestine of pigs with diarrhea. close antibiotic sensitivity of the isolates was shown. the differences in their sensitivity were not sufficient for defining the taxonomic features.19836638971
characterization of immunoglobulins from the brown bullhead (ictalurus nebulosus) produced against a naturally occurring bacterial pathogen, aeromonas hydrophila.the primary immune response in the brown bullhead (ictalurus nebulosus) to intramuscularly injected, chloroform-killed aeromonas hydrophila reached an agglutination titer of 128 in 3 wk, and the response to the bacteria plus adjuvant reached a titer of 512 in 5 wk. anti-aeromonas hydrophila antibodies from brown bullheads were excluded from sephadex g-200 and had an immunoelectrophoretic migration pattern toward the cathode. cleavage of the macromolecule by 2-me reduction and iodoacetamide alkyl ...19836642044
microbiological & clinical studies in diarrhoea due to plesiomonas shigelloides. 19836642576
panophthalmitis and otitis interna in fire-bellied toads.microbiologic and histologic studies were made of fire-bellied toads with signs of ocular and central nervous system disease. providencia alcalifaciens, citrobacter freundii, aeromonas hydrophila, and other gram-negative bacilli were isolated from the eyes and multiple tissues of ill toads. the histologic evaluations revealed severe panophthalmitis and otitis interna.19836643232
stereospecificity of amino acid hydroxamate inhibition of aminopeptidases.hydroxamates of amino acids and aliphatic acids are effective inhibitors of aeromonas proteolytica amino-peptidase (ec and of both the cytosolic (ec and microsomal (ec aminopeptidases of swine kidney. cytosolic leucine aminopeptidase and the aeromonas enzyme were inhibited to a greater extent by d isomers than by the l enantiomorphs, manganese-activated kidney cytosolic leucine aminopeptidase being inhibited 10 times more effectively by d-leucine and d-valine hydro ...19836643439
correlation of enterotoxicity with biotype in aeromonas spp.enterotoxin production correlated with biotype in a study of 686 strains of aeromonas spp. from indonesia, thailand, the united states, and western australia. most strains were isolated from feces but nonfecal human isolates and environmental strains were also included. more than 80% of voges-proskauer (vp)-positive strains, classified as a. hydrophila, were enterotoxigenic in the suckling mouse assay as were 90% of vp-positive, arabinose-negative strains. an association between positive vp, ara ...19836643669
[taxonomic study of free nitrogen-fixing bacteria isolated from the endorhizosphere of rice].twenty strains of free-living n2-fixing bacteria, isolated from the endorhizosphere of rice in rice soils of senegal, were studied on the basis of 259 morphological, physiological, biochemical and nutritional characters. half of them were gram-negative small rods with polar flagella and showing a strictly respiratory metabolism; they were characteristic of the genus pseudomonas. a first group of 6 strains was related to the p. cepacia-p. marginata group characterized by lophotrichous flagella; t ...19836651126
comparative in vitro activities of ten antimicrobial agents against bacterial enteropathogens.the in vitro susceptibilities of 50 strains of salmonella spp., 80 strains of shigella spp., and 50 enterotoxigenic escherichia coli, 14 yersinia enterocolitica, 6 aeromonas hydrophila, 4 plesiomonas shigelloides, 9 vibrio parahaemolyticus, and 30 campylobacter jejuni strains that were recently isolated from worldwide sources were determined for 10 antimicrobial agents. the antimicrobial agents tested included ampicillin, bicozamycin, doxycycline, enoxacin (ci-919), erythromycin, furazolidone, a ...19836651278
presence of a new cytochrome b - like pigment with a peak at 567 nm in various aerobic bacteria.several physiological groups of bacteria were examined for the presence of a cytochrome b - like pigment which is demonstrable in dithionite-reduced minus substrate-reduced difference spectra. this pigment is characterized by an unusually high alpha band at 567 nm, a low concentration relative to conventional cytochromes, and an inability to be fully reduced by endogenous substrates or nadh. previous studies with one denitrifying and nondenitrifying species of the genus pseudomonas, in paracoccu ...19836652580
a numerical taxonomic study of species of vibrio isolated from the aquatic environment and birds in kent, england.a numerical taxonomic study has been carried out to confirm the identity of strains of the family vibrionaceae isolated during an ecological study. a total of 237 strains were studied including 148 from the aquatic environment, 6 from estuarine birds, 1 from sheep faeces, and 61 control cultures. duplicates of 21 of the strains were randomly selected and included to estimate test and operator error. taxonomic resemblance was estimated on the basis of 148 characters using euclidean distance. the ...19836654766
[isolation of plesiomonas shigelloides in a case of gastroenteritis]. 19836658089
distribution of imvc biogroups of aeromonas hydrophila and aeromonas sobria isolated from human, fish and water.aeromonas sobria and a.hydrophila were isolated from infected fish in ratio of 3.5:1 during the outbreak of fish infections from december 1982 to february 1983, while isolates from human diarrheic stool was 1 :2. on the basis of imvc reactions 138 isolates of motile aeromonads could be divided into 11 biogroups, with biogroup 4 showing statistically significant association with infections. nine biogroups of aeromonads which were isolated from infected fish reflected that the outbreak was not cau ...19836658502
bacterial chemotaxis to effluent from a rum distillery in tropical near-shore coastal waters.pseudomonas aeruginosa and vibrio cholerae showed a strong positive chemotactic response towards rum distillery wastewaters (mostos) and a high oxygen uptake rate in the presence of this complex substrate. rum slops stimulated only motility in aeromonas hydrophila and escherichia coli. the a. hydrophila and e. coli isolates were unable to oxidize mostos significantly.19836660880
a lipopolysaccharide-specific bacteriophage for aeromonas salmonicida.cell wall lipopolysaccharide (lps) was identified as the receptor for the aeromonas salmonicida bacteriophage strain 55r-1. mutants of a. salmonicida resistant to phage 55r-1 were unable to adsorb phage 55r-1 and were shown to be defective in lps structure. purified a. salmonicida lps inactivated phage 55r-1, but the o-polysaccharide and the core oligosaccharide portions of the lps were ineffective. these results suggest that lipid a was required for receptor activity. antibodies directed agains ...19836661705
[aeromonas hydrophila var. anaerogenes as a probable etiologic factor in food poisoning]. 19836665204
[ecological studies on the microbial flora of raw oysters (crassostrea gigas) harvested in hiroshima and the tohoku district]. 19836668346
enhancement of bacterial adhesion by shear forces: characterization of the haemagglutination induced by aeromonas salmonicida strain 438.application of a viscometric assay to the haemagglutination induced by aeromonas salmonicida strain 438 showed that shear forces can enhance the strength of bacterial adhesion. the d-mannose/l-fucose-sensitive reaction proceeded in two phases, an initial phase in which the degree of aggregation remained constant during shearing and a second stage, induced by shear, in which agglutination was enhanced as shear was maintained. the results strongly paralleled those found in studies of concanavalin ...19836668467
aeromonas species in clinical microbiology: significance, epidemiology, and speciation.over a one-year period, 32 strains (31 clinical, 1 environmental) of aeromonas sp. were recovered. chief sources of isolation were the gastrointestinal tract (48%), wounds (19%), and blood (13%). gastrointestinal isolates were most often recovered from young (less than 5 yrs) children with diarrhea; wound or blood isolates were recovered more often from an older (avg. 56 yrs) population with one of several underlying disorders. regardless of body site of isolation, most strains of aeromonas appe ...19836673896
[evaluation of a new system for the simultaneous identification and antibiotic sensitivity testing of gram-negative bacilli by automation].abac- identibiogramma ii is a new system allowing the carry out of antimicrobial susceptibility testing on various bacterial groups and also the fully automatic simultaneous susceptibility testing and identification of gram-negative bacilli (urinary and not). particularly most species of enterobacteriaceae and aeromonas hydrophila, acinetobacter sp., pseudomonas sp. can be identified. this system has two important characteristics, due to a computerized program: that is the possibility of using s ...19836675045
hemagglutination patterns of aeromonas spp. in relation to biotype and source.aeromonas spp. show patterns of hemagglutination with human group o cells in the presence of fucose, galactose, and mannose. these patterns are related to biotype as well as to the source of isolates. there was good correlation between hemagglutination pattern and the presence of diarrhea among strains isolated in western australia, which was the only source with adequate data for classification of children with an without diarrhea. most of the environmental and other nonfecal isolates produced ...19846690466
biotyping of aeromonas isolates as a correlate to delineating a species-associated disease spectrum.a group of 147 aeromonas isolates from diverse clinical and environmental sources was subjected to the biotyping scheme of popoff and veron. of the 147 isolates biotyped, 137 (93%) could be identified, with aeromonas hydrophila predominating (48%) and equal percentages (25 to 27%) of the other two species (aeromonas sobria and aeromonas caviae). a number of additional biochemical properties were found to be significantly associated with one or more of these three species. these included lysine d ...19846690467
bacterial interference with coliform colony sheen production on membrane filters.the membrane filter (mf) method for detection and enumeration of coliform bacteria in drinking water requires that the coliforms both grow and produce a green metallic sheen when the filter is incubated on modified endo medium at 35 degrees c for 22 h. large numbers of noncoliform bacteria, which are enumerated by the standard plate count (spc) technique, can interfere with the detection of coliforms on mf. this paper presents quantitative evidence from laboratory experiments on the interference ...19846696423
enterotoxin production in relation to taxonomic grouping and source of isolation of aeromonas species.a total of 19 of 20 (95%) strains of aeromonas hydrophila biovar hydrophila and 16 of 17 (94%) strains of aeromonas sobria isolated from a variety of clinical and environmental sources were found to be enterotoxin positive. only 2 of 18 (11%) a. hydrophila biovar anaerogenes and 2 of 13 (15%) unidentified aeromonas strains from a similar variety of sources produced enterotoxin. no association was apparent between the source of isolation, in particular diarrheal stools, and enterotoxigenicity; 41 ...19846699147
[infections caused by aeromonas hydrophila]. 19846700763
observations of bacterial diseases of captive snakes in finland.eighteen captive, nonpoisonous snakes which suffered from bacterial infections were studied. the most usual bacteria found were gram-negative rods; especially pseudomonas aeruginosa, aeromonas hydrophila and proteus spp. the most common disorders caused by them were stomatitis, septicaemia, bronchopneumonia and abscesses. the sensitivities of ten isolated bacteria to antimicrobial drugs were tested. neomycin and gentamicin seemed to be effective, especially against p. aeruginosa.19846728671
aeromonas septicemia in infants and children.our experience at the ramathibodi hospital with 20 infants and children who had aeromonas septicemia is reviewed. their ages were from 1 day to 14 years. eighteen patients had underlying diseases: leukemia, 5; aplastic anemia, 4; cirrhosis, 2; thalassemia/hemoglobinopathy, 3; renal failure, 1; ileal perforation, 1; marasmus, 1; and cavernous hemangioma with thrombocytopenia, 1. blood cultures yielded aeromonas hydrophila in all patients, and four patients had polymicrobial bacteremia. fifteen ep ...19846728702
aeromonas hydrophila isolated from polyarthritis in a calf. 19846732673
aeromonas hydrophila in livestock: incidence, biochemical characteristics and antibiotic susceptibility.faecal samples from 110 horses, 115 pigs, 111 sheep and 123 cows were examined for the presence of aeromonas hydrophila, which was also sought in the available drinking water. the overall faecal rate was 11.8%, but significantly more bovine than other samples were found to be positive. there was significant association between the isolation of a. hydrophila from all animal faeces and its presence in drinking water, but this was not found when individual animal groups were analysed separately. an ...19846736644
septicemia due to aeromonas hydrophila. 19846736824
aeromonas hydrophila gastroenteritis in tuscany children. 19846739332
biotyping and virulence factors in clinical and environmental isolates of aeromonas species.biochemical characteristics and virulence factors were compared in 147 aeromonas spp. isolated from patients with diarrhea and in 94 strains isolated from metropolitan water supplies in the same area during the same period. fermentation of arabinose occurred with 58.5% of the environmental strains and 15% of the clinical isolates; 39.4% of the strains from water and 6.8% of the fecal isolates fermented salicin. the frequency of esculin hydrolysis was the same in both groups. ninety-one percent o ...19846742829
severe cellulitis due to aeromonas hydrophilia following immersion injury. 19846745473
cytotonic enterotoxin from aeromonas hydrophila.aeromonas hydrophila produces two hemolysins and an enterotoxin during growth. enterotoxin, separated from the hemolysins, gave positive reactions in the rabbit intestinal loop test, the rabbit skin test and the adrenal y1 cell test. neutralization experiments in the rabbit loop, rabbit skin and y1 cell tests failed to demonstrate any immunological relationship between aeromonas enterotoxin and cholera toxin or escherichia coli heat-labile enterotoxin. prior incubation of aeromonas enterotoxin w ...19826753242
characterization of indicator bacteria in municipal raw water, drinking water, and new main water samples.municipal water samples were analyzed by membrane filter (mf) and presence-absence (p-a) tests for pollution indicator bacteria. in four years, 11 514 bacterial cultures were isolated from either raw water, drinking water, or new main water samples submitted to three environmental laboratories. the bacterial species occurring most often in all types of water samples were escherichia coli (11.6-39.7%), enterobacter aerogenes (18.1-26.3%), aeromonas hydrophila (8.8-17.0%), klebsiella pneumoniae (7 ...19826754044
thin layer iso-electro focusing of intracellular bacterial protein in classification of some representatives of the families enterobacteriaceae and vibrionaceae.intracellular bacterial protein from some representatives of the families enterobacteriaceae and vibrionaceae has been investigated using thin layer iso-electric focusing in polyacrylamide gel. a marked difference between the protein patterns was observed between species within the same family. carrying out the iso-electric focusing at ph range 3.5-9 gave a large number of protein bands. increased resolution of the protein bands was obtained using iso-electric focusing at the ph range 4-6.5. car ...19826756032
the diagnosis of intrasplenic abscess during treatment of acute leukaemia. 19806764483
biochemical characteristics of enterotoxigenic aeromonas spp.biotypes of aeromonas spp. correlated well with enterotoxin production in a study of 174 strains. using biochemical characteristics determined by conventional methods and multitest systems, we correctly classified 93% of the strains with regard to enterotoxin production. most of the enterotoxigenic strains were voges-proskauer (vp) positive and did not hydrolyze arabinose, but vp-positive strains which hydrolyzed arabinose were mainly non-enterotoxigenic. aeromonas punctata subsp. caviae, which ...19826764776
[a case of aeromonas hydrophila septicemia in a patient with monocytic leukemia (author's transl)]. 19806770012
[a case of campylobacteriosis associated with protein-losing gastroenteropathy (author's transl)]. 19806771344
[characteristics of the destruction of bacteria in the body of fish]. 19806771912
comparative studies on the regulation of tryptophan vitro dna recombination techniques have revolutionized the study of genetic control of biosynthetic pathways. using examples drawn from the pathway of tryptophan synthesis, approaches to the deciphering of regulatory signals and response mechanisms through transposition of dna segments and dna sequence analysis will be presented. after reviewing the known chromosomal arrangements and regulatory patterns of trp genes in the bacterial groups studied so far, and describing the results of transfe ...19806772375
[testing the differentiatioin medium of rimler and schotts for the detection and identification of aeromonas hydrophila].the differentiating medium after rimler and shotts (r-s substrate) was tested on 152 strains of the family enterobacteriaceae, i. e. on the strains of aeromonas hydrophila, plesiomonas shigelloides, and pseudomonas aeruginosa. the accuracy of the prompt identification of the strains of aeromonas hydrophila in this medium is 94.8 % and the preparation of the substrate is easy. the r-s substrate is recommended to be used in investigating the cause of mortality or morbidity in cold-blooded animals, ...19806773224
increased resistance to aeromonas hydrophila in mice experimentally infected with trypanosoma cruzi. 19816790693
purification and some properties of the hemolytic toxin aerolysin.aerolysin, the hemolytic toxin produced by aeromonas hydrophila, has been purified by a combination of salt fractionation, gel filtration, and ion-exchange and hydroxyapatite chromatography. the resulting protein has a molecular weight of 51 500 and appears homogeneous by polyacrylamide gel electrophoresis in sodium dodecyl sulphate. it is free of detectable protease and phospholipase activities. the purified protein can be separated into two active components with pis of 5.39 and 5.46 by isoele ...19816794885
comparison of three microbial toxicity screening tests with the microtox test. 19816802203
antibacterial action of combinations of oxytetracycline, dimethyl sulfoxide, and edta-tromethamine on proteus, salmonella, and aeromonas.antibacterial effects against proteus mirabilis, salmonella typhimurium, and aeromonas hydrophila were obtained with subminimal inhibitory concentrations of oxytetracycline and edta-tromethamine. antibacterial effects were not observed with subminimal inhibitory concentrations of dimethyl sulfoxide plus oxytetracycline or with dimethyl sulfoxide plus edta-tromethamine. using a 2-dimensional microtiter checkerboard technique, inhibitory activities of the various combinations of solutions were stu ...19826807142
market fish hygiene in kenya.vibrio parahaemolyticus was isolated from 53 out of 584 samples (9.1%) of market fish. all strains were kanagawa negative and were distributed as follows: sea fish 5 out of 370 samples (1.4%), shellfish 48 out of 214 samles (22.4%). other fish spoilage microflora recovered were: alcaligenes faecalis, pseudomonas aeruginosa, proteus vulgaris, aeromonas spp. and vibrio alginolyticus. total aerobic counts and coliform counts per gram for the lake fish ranged from 2.6 x 10(2) to 6.6 x 10(7) and 10 t ...19826808058
[proteolytic microorganisms in liver products].liver products were studied for the content of proteolytic microorganisms during production and storage. their number was at the lowest level in products of thermal processing (10(5) per g on the average). storage at a refrigerator and room temperature increased this level to the average values of 10(6) to 8.10(6) per g. isolated colonies of proteolytic microorganisms were included in the following genera: pseudomonas, aeromonas, escherichia, alcaligenes, bacillus and staphylococcus. the content ...19826808746
bactericidal serum response of the channel catfish against gram-negative bacteria. 19826813155
enzymatic characterization of aeromonas hydrophila complex by the api zym system.enzymatic characterization of 48 aeromonas hydrophila complex isolates from various sources was determined with the api zym system (analytab products, plainview, n.y.). all isolates lacked valine and cystine aminopeptidases, chymotrypsin, alpha-mannosidase, alpha-fucosidase, alpha-galactosidase, and beta-glucuronidase but possessed caprylate esterase-lipase, leucine aminopeptidase, acid phosphatase, phosphoamidase, and n-acetyl-beta-glucosidase. variability was found in the presence of alkaline ...19826818246
[septicemia due to aeromonas species: clinical and bacteriological aspects]. 19826818304
[sensitivity of aerobia microbial strains responsible for overseas infective diarrheas to two chemical substances: trimethoprime sulfamethoxazole and 5-methyl-oxine]. 19826819896
characterization of plasmids in bacterial fish pathogen.plasmid profiles of representative fish pathogens, aeromonas salmonicida, aeromonas hydrophila, vibrio anguillarum, pasteurella piscicida, yersinia ruckeri, edwardsiella tarda, and renibacterium salmoninarum, were determined by agarose gel electrophoresis with four different plasmid detection methods. a combination of two methods was required to detect the plasmids present in these strains and to calculate precisely the molecular weights of the plasmids. of 38 strains, 28 harbored one or more pl ...19836822413
evaluation of differential and selective media for isolation of aeromonas and plesiomonas spp. from human feces.we studied nine solid and two liquid media for their suitability to select aeromonas and plesiomonas spp. from human stools, using artificially contaminated samples as well as 254 samples from outpatients with and without diarrhea. media with optimal sensitivity and specificity for aeromonas spp. were alkaline peptone-water, trypticase soy broth with ampicillin, inositol-brilliant green-bile salts agar, dextrin-fuchsin-sulfite agar, xylose-sodium desoxycholate-citrate agar, and pril-xylose-ampic ...19836826700
neonatal septicemia and meningitis due to plesiomonas shigelloides. 19836828345
bacteria in enteric lesions of cattle.thirty-nine species of bacteria were isolated from or demonstrated in the abomasal and small and large intestinal mucosa of 23 adult cattle and 41 calves and identified. the bacteria isolated were related to the gross and microscopical lesions. campylobacters, clostridium perfringens type a, c sordellii, actinobacillus lignieresii, fusobacterium necrophorum, mycobacterium paratuberculosis, aeromonas hydrophila and escherichia coli were all associated with specific lesions. the relationship of ot ...19836829137
the medicinal leech and its use in plastic surgery: a possible cause for infection.recent interest in the use of the medicinal leech (hirudo medicinalis) in microsurgical practice prompted us to undertake a bacteriological study. aeromonas hydrophila was consistently cultured from 9 leeches that we examined. this organism is pathogenic to man and we consider that there is a significant risk of infection, particularly in those procedures where the vascularity of the tissues is compromised. there are several pharmacological preparations which have similar properties to the secre ...19836831107
in vitro activity of new cephalosporins against multi-resistant gram-negative bacteria.the in vitro sensitivities of 47 multi-resistant gram-negative bacilli against six third generation cephalosporins were investigated. overall, moxalactam was the most active compound and cefoperazone the least active. ceftizoxime and ceftazidime were very active against enterobacteriaceae. ceftriaxone and ceftizoxime were active against escherichia coli and klebsiella spp., but were inactive against pseudomonas spp.; achromobacter sp. was resistant to all drugs, while citrobacter freundii was se ...19836832840
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