| [numerical taxonomy of vibrios and of certain comparable bacteria. i. taxometric method and material used]. | | 1966 | 5970794 |
| [numerical taxonomy of vibrios and various comparable bacteria. ii. correlation between phenotypic similarities and dna base compositions]. | | 1966 | 5982748 |
| occurence and nature of spirilla around bombay. | | 1967 | 6036897 |
| electron microscopic observations of structures associated with the flagella of spirillum volutans. | electron microscopy of thin-sectioned spirillum volutans (atcc 19554) showed that at the insertion site of the flagellum there was a cylindrical structure with a diameter of ca. 36 nm which extended ca. 19 nm into the cytoplasm. this structure, termed a cytoplasmic flagellar base, enclosed a central rod which was continuous with the hook. there was a continuation of the flagellar base into the peptidoglycan layer, enclosing ringlike structures and the central rod. the flagellar hook and proximal ... | 1985 | 3972771 |
| cytochrome synthesis and its regulation in spirillum itersonii. | spirillum itersonii contains b- and c-type cytochromes as well as a carbon monoxide-binding pigment of the cytochrome o type. synthesis of cytochromes b and c is increased by about two- and fourfold, respectively, when cells are transferred from high to low aeration. the increased concentration of cytochrome is not accompanied by an increase in the respiration rate of the cells. both cytochrome b and cytochrome c are located in the particulate fraction of cells grown under high or low aeration, ... | 1967 | 6057811 |
| effect of dimethylsulfoxide on derepression of nitrogenase in spirillum lipoferum. | | 1981 | 6113164 |
| intestinal microbial flora after feeding phytohemagglutinin lectins (phaseolus vulgaris) to rats. | incorporation of purified phytohemagglutinin (pha) lectins derived from red kidney beans (phaseolus vulgaris) in the diet of weanling rats will cause growth failure, malabsorption of nutrients, and bacterial overgrowth in the small intestine. these effects are not caused by feeding a similar quantity of pha to germfree rats. to define the morphological and bacterial changes on the mucosal surfaces of the jejunum, ileum, and cecum in greater detail, we pair fed two groups of weanling rats isocalo ... | 1985 | 4026292 |
| occurrence of azospirillum in polish soils. | n2-fixing azospirillum strains were isolated from garden soils and roots of wheat, rye, barley, oat and maize. the strains most active in c2h2 reduction were those isolated from garden soils, wheat and barley roots which produced 304 to 351 nmoles of c2h4 x h-1 per culture. the results demonstrate the presence of azospirillum in polish soils. | 1983 | 6198878 |
| microtox and spirillum volutans tests for assessing toxicity of environmental samples. | | 1985 | 4052646 |
| ultrastructure of a magnetotactic spirillum. | the ultrastructure of a magnetotactic bacterium (strain ms-1) was examined by transmission, scanning, and scanning-transmission electron microscopy. the organism resembled other spirilla in general cell morphology, although some differences were detected at the ultrastructural level. electron-dense particles within magnetotactic cells were shown by energy-dispersive x-ray analysis to be localizations containing iron. a non-magnetotactic variant of strain ms-1 lacked these novel bacterial inclusi ... | 1980 | 6245069 |
| abnormally low activities of fumarate hydratase and malate dehydrogenase in oxygen-sensitive cultures of spirillum volutans. | | 1973 | 4148677 |
| [differentiation among species of the genus azospirillum]. | to replace the spirillum lipoferum denomination (2) for the nitrogen fixing group of soil spirilla, the azospirillum genus has been created in recent years (12), which includes two species: a. lipoferum and a. brasilense. both of them are nitrogen fixing bacteria able to induce a specific infection of grass roots (1, 6). consequently it is important to differentiate correctly the species when plant-bacteria relationships must be studied or inoculation assays must be carried out. for this reason ... | 1984 | 6400721 |
| [isolation of atmospheric-nitrogen-fixing spirilla from the waters of the paraná delta and other rivers]. | seventeen strains of spirillum-like organisms (2) were isolated from the parana delta and other rivers (table 1), using the following medium: 0.5% malic acid; 0.4% koh; 0.5% k2hpo4; 0.005% yeast extract; ph was adjusted to 7 with koh and 0.15% agar. the organisms produced a white, dense and sub-superficial pellicle in this medium, and streaking them on plates, single colonies could be isolated. they were easily recognized thanks to the congo red added to the medium, because the bacteria, as it h ... | 1984 | 6400725 |
| identification of a promoter dependent on nifa and sigma 54 upstream of nifh in azospirillum lipoferum. | southern hybridization experiments strongly indicate that the regulatory region of the azospirillum lipoferum nifh gene is located on a cloned 1.1 kb bamhi-xhoi restriction fragment. by cloning this fragment into a promoter-probe plasmid in escherichia coli, a promoter was identified oriented towards the nifh gene. using a set of several bacterial strains and plasmids, both nifa and the alternative sigma factor, sigma 54, from klebsiella pneumoniae were shown to be required for the induction of ... | 1991 | 2046661 |
| anaerobiospirillum species isolated from humans with diarrhoea. | flagellated anaerobic motile spiral bacteria were isolated from the faeces of two patients with diarrhoea. they were recovered by the microaerophilic culture method used to detect campylobacters but demanded anaerobic conditions for subculture. electron microscopy and other investigations showed them to be closely related to anaerobiospirillum succiniproducens first described in beagle dogs and subsequently in three humans with bacteraemia. | 1983 | 6619308 |
| uptake hydrogenase activity in denitrifying azospirillum brasilense grown anaerobically with nitrous oxide or nitrate. | zospirillum brasilense sp7 was grown anaerobically with n2o as the terminal electron acceptor and nh4cl as the nitrogen source. hydrogen uptake activity (o2-dependent h3h oxidation) was expressed in the presence and absence of 5% h2; it reached its maximum in late logarithmic phase as the malate became limiting. this activity was very stable in stationary phase, even in the absence of exogenous h2, compared with microaerobically grown cultures; this supports the hypothesis that the exclusion of ... | 1984 | 6690429 |
| components of the regular surface array of aquaspirillum serpens mw5 and their assembly in vitro. | the two-layered regular surface array of aquaspirillum serpens mw5 was removed from cell envelopes and dissociated into subunits by treatment with 6 m urea. the surface components reassembled onto an outer membrane surface and self-assembled into planar sheets in vitro in the presence of ca2+ or sr2+. the two layers were removed sequentially from cell envelopes by a two-step extraction procedure involving initial treatment with a high-ph buffer to remove the outermost surface layer and subsequen ... | 1984 | 6693353 |
| expression of the agrobacterium tumefaciens chvb virulence region in azospirillum spp. | inner membranes of azospirillum brasilense incubated with udp-glucose were unable to synthesize beta-(1-2) glucan and lacked the 235-kilodalton intermediate protein known to be involved in the synthesis of beta-(1-2) glucan in agrobacterium tumefaciens and rhizobium meliloti. inner membranes of a. brasilense strains carrying a cosmid containing the chromosomal virulence genes chva and chvb of agrobacterium tumefaciens formed beta-(1-2) glucan in vitro and synthesized the 235-kilodalton intermedi ... | 1990 | 2332404 |
| a rapid immunofluorescence method for the study of the association of azospirillum sp. with maize roots. | | 1982 | 6765358 |
| a model for swimming unipolar spirilla. | a mathematical model employing slender body theory is constructed for a unipolar spirillum volutans cell with the model cell allowed to move unconstrainedly in the fluid. the results are compared with observation and previous studies and the effects of varying cell dimensions are investigated. | 1989 | 2593689 |
| immunological techniques to identify azospirillum associated with wetland rice. | azospirilla associated with wetland rice were isolated and characterized by employing immunodiffusion and immunofluorescence techniques. antisera against two strains belonging to azospirillum lipoferum produced at least one heat-labile precipitation band with most isolates of a. lipoferum and a. brasilense. antisera against two strains belonging to a. lipoferum and one strain belonging to a. brasilense produced one band only with strains of their respective species. fluorescent antibody reaction ... | 1982 | 6809301 |
| straight mutants of spirillum volutans can swim. | nonhelical mutant cells of spirillum volutans atcc 19554 can swim as fast as the helical cells. consequently, a helical cell shape is not required for motility of this species, and the function of the polar flagellar fascicles is not merely to cause rotation, and therefore translocation, of the corkscrew-shaped cell. | 1983 | 6826526 |
| cloning of histidine genes of azospirillum brasilense: organization of the abfh gene cluster and nucleotide sequence of the hisb gene. | a cluster of four azospirillum brasilense histidine biosynthetic genes, hisa, hisb, hisf and hish, was identified on a 4.5 kb dna fragment and its organization studied by complementation analysis of escherichia coli mutations and nucleotide sequence. the nucleotide sequence of a 1.3 kb fragment that complemented the e. coli hisb mutation was determined and an orf of 624 nucleotides which can code for a protein of 207 amino acids was identified. a significant base sequence homology with the carbo ... | 1989 | 2664449 |
| structure of the regular surface layer of aquaspirillum serpens mw5. | the structure of the regular surface layer of aquaspirillum serpens mw5 has been investigated by electon microscopy supplemented by computer image processing and least-squares analysis. the layer has a ribbed appearance, both on the bacterium and in isolated, negatively stained fragments. however, detailed analysis indicated that the layer was composed of two hexagonal sheets having p6mm symmetry and a = 16 nm. one sheet was staggered by one half repeat along a (1,0) line of the p6nm lattice rel ... | 1982 | 7061396 |
| trailing flagella rotate faster than leading flagella in unipolar cells of spirillum volutans. | in unipolar cells of spirillum volutans, the flagellar rotation frequency is halved, approximately, when the flagellar bundle reorientates to rotate about the cell body and reverse the swimming direction. the viscous drag resulting from a concomitant increase in flagellar wave amplitude is probably responsible for the reduced frequency of flagellar rotation. | 1982 | 7061399 |
| evolution of the regulatory isozymes of 3-deoxy-d-arabino-heptulosonate 7-phosphate synthase present in the escherichia coli genealogy. | the evolutionary history of isozymes for 3-deoxy-d-arabino-heptulosonate 7-phosphate (dahp) synthase has been constructed in a phylogenetic cluster of procaryotes (superfamily b) that includes escherichia coli. members of superfamily b that have been positioned on a phylogenetic tree by oligonucleotide cataloging possess one or more of four distinct isozymes of dahp synthase. dahp synthase-0 is insensitive to feedback inhibition, while dahp synthase-tyr, dahp synthase-trp, and dahp synthase-phe ... | 1986 | 2867085 |
| cloning and characterization of the glna gene of azospirillum brasilense sp7. | a plasmid which, by complementation, restored a gln+nif+ phenotype to the gln-nif- azospirillum brasilense mutant 7029, was isolated from a gene bank of total dna of a. brasilense sp7 (atcc 29145) constructed in the broad host range vector pvk100. this plasmid contained the structural gene (glna) for glutamine synthetase. the glna gene was mapped by tn5 insertion and dna hybridization with a klebsiella pneumoniae glna probe. the direction of transcription of glna was determined. the glna product ... | 1986 | 2893582 |
| spiral-shaped bacteria in the cecal mucosa of the amami spinous country-rat, tokudaia osimensis osimensis. | | 1981 | 7289330 |
| restriction endonucleases in azospirillum. | azospirillum brasilense, a. amazonense, and a. lipoferum strains were screened for restriction endonucleases using phage lambda dna. the extract of a. brasilense 29711 cleaved lambda dna into specific fragments. it was concluded that this strain possesses a class ii restriction endonuclease which was named abri. abri has a single recognition site on lambda dna at position of approx. 33 500 bp. abri was characterized as an isoschizomer of xhoi, which cuts lambda dna at 33 498 bp and cleaves doubl ... | 1985 | 3000892 |
| comparative studies of nitrogen-fixing bacteria associated with grasses in israel with azospirillum brasilense. | free-living, dinitrogen-fixing bacteria associated with roots of grasses were isolated from several locations in israel. bacteria with characteristics similar to those of azospirillum were isolated from cynodon dactylon roots and were compared with azospirillum brasilense from brasil (sp-7) and from california (cd). colonies of the israeli isolates were yellow and consisted of curved rods, 0.5-0.6 micron in diameter with polar flagella, whereas colonies of a. brasilense were pink (sp-7) and red ... | 1980 | 7397611 |
| purification and properties of the soluble cytochromes c-550 and c-556 from the bacterium aquaspirillum itersonii. | two c-type cytochromes were isolated from cells of the gram-negative bacterium aquaspirillum itersonii grown under low aeration in the presence of nitrate. the major component, cytochrome c-550, was equated with the (single) c-type cytochrome previously reported to be present in this organism [clark-walker, g. d. & lascelles, j. (1970) arch. biochem. biophys. 136, 153-159], although a significantly higher molecular mass was apparent in the present work. the complete amino acid sequence of this c ... | 1987 | 3036516 |
| the soluble c-type cytochromes from the bacterium aquaspirillum itersonii. the complete amino acid sequence of the cytochrome c-550. | a complete amino acid sequence is proposed for the cytochrome c-550 isolated from the gram-negative chemo-organotrophic bacterium aquaspirillum itersonii. the sequence, a single polypeptide chain of 111 residues, was deduced from the sequences of peptides obtained by tryptic, thermolytic or chymotryptic digestion. the cytochrome shows a high degree of sequence homology with the cytochrome c2 from the photosynthetic bacterium rhodospirillum rubrum, and the evolutionary implications of this are co ... | 1987 | 3036517 |
| bacterial surface proteins. some structural, functional and evolutionary aspects. | the structure of several eubacterial and archaebacterial surface (glyco)proteins as determined by three-dimensional electron microscopy is described. particular emphasis is placed on surface proteins which interact with membranes. some structure-function relationships deduced from the structural information, such as shape maintenance and molecular recognition phenomena, are discussed. | 1988 | 3129041 |
| toxicity of organomercury compounds: bioassay results as a basis for risk assessment. | a former mercury plant, where mercury salts and organomercurials for pesticide use were produced, caused soil contamination in high concentrations. typical organomercurial products included ethylmercury, phenylmercury, methoxyethylmercury and ethoxyethylmercury compounds. risk assessment of these sites must be carried out before any major clean-up processes can be planned. a sensitive speciation technique for the various organomercury species in environmental matrices is a prerequisite for toxic ... | 1995 | 7741224 |
| isolation and characterization of azospirillum brasilense loci that correct rhizobium meliloti exob and exoc mutations. | the occurrence in azospirillum brasilense of genes that code for exopolysaccharide (eps) synthesis was investigated through complementation studies of rhizobium meliloti exo- mutants. these mutants are deficient in the synthesis of the major acidic eps of rhizobium species and form empty, non-nitrogen-fixing root nodules on alfalfa (j. a. leigh, e. r. signer, and g. c. walker, proc. natl. acad. sci. usa 82:6231-6235, 1985). we demonstrated that the exoc mutation of r. meliloti could be corrected ... | 1988 | 3182731 |
| determination of the spiral conformation of aquaspirillum spp. by scanning electron microscopy of elongated cells induced by cephalexin treatment. | the effect of the beta-lactam antibiotic cephalexin on the spiral conformation of cells of aquaspirillum spp. was examined by scanning electron microscopy. a. itersonii and a. peregrinum, which are known to have a left-handed spiral shape, elongated and still showed left-handed spirals in medium containing cephalexin. the spiral conformation of the elongated cells is therefore considered to represent the natural condition. the spiral conformations of a. metamorphum and a. psychrophilum grown in ... | 1986 | 3531396 |
| phylogenetic position of taylorella equigenitalis determined by analysis of amplified 16s ribosomal dna sequences. | the 16s ribosomal dna sequence of taylorella equigenitalis (formerly haemophilus equigenitalis), the causative organism of contagious equine metritis, was determined. a phylogenetic analysis of this sequence revealed a phylogenetic position of t. equigenitalis in the beta subclass of the class proteobacteria apart from the position of haemophilus influenzae, which belongs to the gamma subclass of proteobacteria. a close phylogenetic relationship among t. equigenitalis, alcaligenes xylosoxidans, ... | 1993 | 8347520 |
| occurrence of spiral-shaped bacteria in gastric biopsies of dogs and cats. | | 1993 | 8362485 |
| gastric spirillosis in beagles. | light microscopic, ultrastructural, and microbiologic evaluations were performed on stomachs from 30 healthy laboratory-reared beagles. spiral-shaped microorganisms were seen in the gastric glands and parietal cell canaliculi of all the dogs. organisms were most numerous in the cardia and in the region of the fundic-pyloric junction. lymphoreticular hyperplasia, dilatation of parietal cell canaliculi, and degeneration of individual parietal cells (rarely seen) were the only morphologic alteratio ... | 1987 | 3592386 |
| formation of bacterial flagella. i. demonstration of a functional flagellin pool in spirillum serpens and bacillus subtilis. | martinez, r. j. (university of california, los angeles), and e. z. gordee. formation of bacterial flagella. i. demonstration of a functional flagellin pool in spirillum serpens and bacillus subtilis. j. bacteriol. 91:870-875. 1966-exponentially growing cultures of spirillum serpens and bacillus subtilis regained motility and flagella within one generation after mechanical deflagellation. regeneration of flagella occurred in both cultures in the presence of chloramphenicol at concentrations shown ... | 1966 | 4956760 |
| competition of marine psychrophilic bacteria at low temperatures. | | 1971 | 5313512 |
| nitrate reductase and soluble cytochrome c in spirillum itersonii. | the addition of nitrate to cultures of spirillum itersonii incubated under low aeration produced a diauxic growth pattern in which the second exponential phase was preceded by the appearance of nitrite in the medium. the organism also grew anaerobically in the presence of nitrate. nitrate reductase activity could be demonstrated in cell-free extracts by use of reduced methyl viologen as the electron donor. the enzyme was located in the supernatant fraction after centrifugation of extracts for 2 ... | 1970 | 5429724 |
| inhibitio of flagellar coordination in spirillum volutans. | the motility of spirillum volutans is caused by the rotation of each polar flagellar fascicle in a direction opposite to that of the more slowly rotating cell. both flagella form cones of revolution oriented in the same direction. when the cell reverses its motion, both fascicles simultaneously reverse their rotation and also the orientation of their cones of revolution, with the tail fascicle becoming the head and vice versa. chloral hydrate and phenol were found to cause uncoordination, with b ... | 1967 | 6057800 |
| infection by spirilla in the stomach of the rhesus monkey. | light and electron microscopy showed gastric spirilla in the gastric mucosa of 45 clinically normal rhesus monkeys (macaca mulatta). in paraffin sections, gastric spirilla were best shown by silver impregnation stains. when stained by hematoxylin and eosin (he), gastric spirilla may be mistaken for strands of mucus. in thick sections of epon-embedded tissue, gastric spirilla looked like "corkscrews" with up to 12 coils. they were 8 microns long and 0.7 micron wide, and had characteristic bipolar ... | 1982 | 6153006 |
| attachment of diaminopimelic acid to bdelloplast peptidoglycan during intraperiplasmic growth of bdellovibrio bacteriovorus 109j. | an early event in the predatory lifestyle of bdellovibrio bacteriovorus 109j is the attachment of diaminopimelic acid (dap) to the peptidoglycan of its prey. attachment occurs over the first 60 min of the growth cycle and is mediated by an extracellular activity(s) produced by the bdellovibrio. some 40,000 dap residues are incorporated into the escherichia coli bdelloplast wall, amounting to ca. 2 to 3% of the total initial dap content of its prey cells. incorporation of dap occurs when e. coli, ... | 1984 | 6202674 |
| identification of a gene for a rubrerythrin/nigerythrin-like protein in spirillum volutans by using amino acid sequence data from mass spectrometry and nh2-terminal sequencing. | a hydrogen peroxide-resistant mutant of the catalase-negative microaerophile, spirillum volutans, constitutively expresses a 21.5 kda protein that is undetectable and non-inducible in the wild-type cells. part of the gene that encodes the protein was cloned using amino acid sequence data obtained by both mass spectrometry and nh2-terminal sequencing. the deduced 158 amino acid polypeptide shows high relatedness to rubrerythrin and nigerythrin previously described in the anaerobes clostridium per ... | 1998 | 9830123 |
| [rat-bite fever]. | | 1999 | 10201206 |
| [range of the transmissivity of the genetic transfer factors pap38, pap39, pap41 and pap42]. | a study was made of the transmissivity range of the genetic transfer factors pap38, pap39, pap41 and pap42 identified in e. coli. it was demonstrated that these factors are not capable of transfer to the cells of p. putida, p. fluorescens, r. leguminosarum, a. lipoferum, a. tumefaciens. factor pap42 is mobilized to transfer to p. putida and r. leguminosarum with the aid of plasmid rp4. it is assumed that in the course of mobilization, the cointegrative structures are formed between plasmids pap4 ... | 1983 | 6299434 |
| i smell a rat! | | 1999 | 10621799 |
| elemental composition of bacterial metachromatic inclusions determined by electron microprobe x-ray analysis. | electron microscopy and microprobe x-ray analysis were used to study metachromatic inclusions of spirillum itersonii , corynebacterium diphtheriae, and micrococcus luteus. in situ metachromatic inclusions were electron dense and contained phosphorus and divalent cations. metachromatic inclusions isolated by anion-exchange column chromatography and by isoosmolar metrizamide density gradient centrifugation were similar in composition to in situ inclusions. | 1984 | 6427179 |
| penetration of bdellovibrio bacteriovorus into host cells. | electron microscopy reveals that, in bdellovibrio infection, after the formation of a passage pore in the host cell wall, the differentiated parasite penetration pole is associated with the host protoplast. this firm contact persists throughout the parasite penetration and after this process is completed. in penetrated hosts this contact is also apparent by phase microscopy. the association between the walls of the parasite and the host at the passage pore, on the other hand, is transient. bdell ... | 1974 | 4208138 |
| toxicity tests to assess pollutants removal during wastewater treatment and the quality of receiving waters in argentina. | in argentina, legislation to control adverse impacts of effluent discharges and the quality of receiving waters is scant and relies mainly on the physicochemical characteristics of the effluents and receiving waters. objectives of this study were to use standardized acute toxicity tests to assess treatment of petrochemical industry effluents and the toxicity of various treated industrial effluents in the buenos aires metropolitan area and their receiving waters. tests for the first objective use ... | 2001 | 11409193 |
| alkalispirillum mobile gen. nov., spec. nov., an alkaliphilic non-phototrophic member of the ectothiorhodospiraceae. | from cultures of the anoxygenic phototroph halorhodospira halophila sl-1, an aerobic, gram-negative spirillum was isolated. this moderately halophilic, alkaliphilic bacterium was motile by means of a single polar flagellum. it is described here as alkalispirillum mobile gen. nov., spec. nov. phylogenetic analysis of the alkalispirillum mobile 16s rrna gene led to its classification in the gamma-subclass of the proteobacteria, as it appears closely related to phototrophic purple sulfur bacteria o ... | 2001 | 11409547 |
| cristispira from oyster styles: complex morphology of large symbiotic spirochetes. | crystalline styles (digestive organs) of bivalve mollusks provide the habitat for highly motile bacteria. styles from freshly-collected oysters, crassostrea virginica, were studied by electron microscopy; cristispira spirochetes were abundant in these organs. detailed study reveals these spirochetes to be among the most complex prokaryotic cells known. more than 600 periplasmic flagella and an adhering outer lipoprotein membrane (e.g., a 270 degrees sillon) form the ultrastructural basis for ... | 1991 | 11538110 |
| endo-n-acetyl-glucosaminidase from clostridium perfringens, lytic for cell wall murein of gram-negative bacteria. | an endo-n-acetyl-glucosaminidase which degrades the murein (peptidoglycan) sacculi of the cell walls of escherichia coli and spirillum serpens, but not those of micrococcus lysodeikticus and sarcina lutea, is present as a contaminant in a "phospholipase c" from clostridium perfringens. the specificity of enzyme action was elucidated by reduction of liberated glycosidic groups with nabh(4) and identification of glucosaminol as the reduction product. this finding contradicts previous reports assoc ... | 1970 | 4315891 |
| phylogenetic analysis of the genus aquaspirillum based on 16s rrna gene sequences. | phylogenetic analysis of 15 species of the genus aquaspirillum based on 16s rrna gene (rdna) sequences indicated that the genus aquaspirillum is phylogenetically heterogeneous and the species could be divided into four groups as follows: aquaspirillum serpens, the type species of this genus, a. dispar and a. putridiconchylium are situated in the family neisseriaceae; members of the second group, a. gracile, a. delicatum, a. anulus, a. giesbergeri, a. sinuosum, a. metamorphum and a. psychrophilum ... | 2002 | 12113929 |
| rat-bite fever in children: case report and review. | we report 2 cases of rat-bite fever (rbf), a multisystem zoonosis, in children and review the literature. rbf is caused by i of 2 gram-negative organisms: streptobacillus moniliformis or, less commonly, spirillum minus. both of our cases developed in school-aged girls with a history of rat exposure who presented with a multisystem illness consisting of fever, petechial and purpuric rash, arthralgia and polyarthritis. both responded promptly to antibiotic treatment. an additional 10 cases from a ... | 2002 | 12160180 |
| isolation and characterization of temperature-sensitive mutants of host-dependent bdellovibrio bacteriovorus 109d. | a variety of temperature-sensitive mutants of host-dependent bdellovibrio bacteriovorus 109d were selected after ethyl methane sulfonate mutagenesis. mutants that demonstrated plaque-forming ability reversion frequencies of 10(-8) to 10(-9) were chosen for further study. representatives of these mutants were then characterized by phase-contrast and electron microscopy, temperature-shifted one-step growth experiments, attachment kinetics, and macromolecular capabilities. representative mutants de ... | 1974 | 4360541 |
| spontaneous rat bite fever in non-human primates: a review of two cases. | rat bite fever is a worldwide zoonotic, non-reportable disease. this entity encompasses similar, yet distinct, disease syndromes caused by streptobacillus moniliformis or spirillum minus. naturally occurring rat bite fever has not been previously described in non-human primates. this report describes two cases of non-human primate rat bite fever caused by s. moniliformis; a rhesus macaque (macaca mullata) with valvular endocarditis, and a titi monkey (callicebus sp.) with septic arthritis. poten ... | 2002 | 12519213 |
| locomotion of spirilla. | the hydromechanics of spirilla locomotion is analyzed by considering the balance of both rectilinear and angular momenta of the surrounding viscous fluid which is otherwise at rest. the physical model of spirillum adopted for the present analysis consists of a rigid helical body with flagella attached to both ends of the helix. the motion is supposed to be activated first by the polar flagella, both rotating in the same sense, thus causing the helical body to rotate in the opposite sense in angu ... | 1972 | 4642227 |
| bacterial infection of the common bile duct in chronic fascioliasis in the rat. | bile taken from rats infected with the liver fluke, fasciola hepatica contained spiral bacteria whereas bile from uninfected rats was free from spiral bacteria. the bacterium and its relationship to the bile duct epithelium and the liver fluke was studied with a combination of light microscopy, scanning and transmission electron microscopy. its morphological characteristics suggest that the bacterium belongs to the genus spirillum. in contrast to many other co-infections of bacteria and helminth ... | 1984 | 6736306 |
| comparison of three microbial toxicity screening tests with the microtox test. | | 1981 | 6802203 |
| [microspirillum fragae, n. sp., parasité of the burhinus capensis capensis lichtenstein 1823, in mozambique]. | | 1952 | 13008063 |
| some observations on bacterial flagella. | | 1953 | 13035049 |
| a macromolecular mono-layer in the cell wall of spirillum spec. | | 1953 | 13058992 |
| flagellum and motility of spirillum serpens. | | 1953 | 13069434 |
| specific agglutination of spirillum serpens. | | 1953 | 13069435 |
| [bacteriological reexamination of spirillum buccale porter (gins) and spirillum buccale koch (gins)]. | | 1953 | 13150912 |
| some observations on the flagella and blepharoplasts of spirillum and vibrio spp. | | 1954 | 13152344 |
| [effect of chloral hydrate on spirillum]. | | 1955 | 13239153 |
| flagella and cell wall of spirilla. | | 1955 | 13243438 |
| [occurrence of spirillum in tissue after tonsillitis with special reference to the bacterioscopic picture of oral mucosa]. | | 1955 | 13257410 |
| some observations upon the development and mode of attachment of the flagella in vibrio and spirillum species. | | 1956 | 13294134 |
| [fixation of molecular nitrogen by water spirillum]. | | 1956 | 13321538 |
| the gonidial stages in spirillum spp. and vibrio spp. | | 1956 | 13346028 |
| microcyst formation and germination in spirillum lunatum. | | 1956 | 13357729 |
| a diphtheroid stomatitis of chickens apparently due to a spirillum, spirillum pulli, species nova. | | 1956 | 13362786 |
| electron microscopy of ultrathin sections of spirillum serpens. | | 1957 | 13405862 |
| studies on the isolation of spirillum sputigenum. | | 1957 | 13460815 |
| nuclear fusion in spirillum spp. | | 1957 | 13481311 |
| some observations concerning the presence of spirilla in the fundic glands of dogs and cats. | | 1958 | 13559622 |
| [surface structure & flagella of spirilla]. | | 1958 | 13616590 |
| prevention of borrelia duttonii, trypanosoma gambiense, spirillum minus and treponema pallidum infections conveyable through transfusion. | | 1958 | 13653844 |
| observations on spirillum sputigenum and its relationship to selenomonas species with special reference to flagellation. | | 1959 | 13654218 |
| identity of the so-called vibrios of the oral flora. | | 1959 | 13654235 |
| large intestine bacterial flora of nonhibernating and hibernating leopard frogs (rana pipiens). | the bacteria in the large intestines of 10 northern leopard frogs (rana pipiens) were enumerated and partially characterized. four nonhibernating frogs were collected in the summer, four hibernating frogs were collected in the winter, and two frogs just emerged from hibernation were collected in the spring. all frogs had about 10(10) bacteria per g (wet weight) of intestinal contents and about 10(9) bacteria per g (wet weight) of mucosal scraping, although the counts from the winter frogs were s ... | 1982 | 6982025 |
| electron microscopy of flagellation in species of spirillum. | | 1961 | 13785467 |
| characterization of a novel spirillum-like bacterium that degrades ferrioxamine-type siderophores. | a novel gram-negative spirillum-like bacterium (asp-1) was isolated from lake water by enrichment culture on desferrioxamine b as sole source of carbon and energy. asp-1 was able to degrade the siderophores desferrioxamine b and e. the property of siderophore degradation was inducible in the presence of desferrioxamine b. the ferric complexes, however, were not measurably degraded but served as an iron source. degradation of desferrioxamines in culture was followed by measuring the residual ferr ... | 1996 | 8574095 |
| inactivation of aeromonas hydrophila by fe(ii)-related-radical generation in oxidizing groundwaters. | the survival of aeromonas hydrophila awwx1 in filter-sterilized phreatic groundwaters was studied by using viable counts. aeromonas counts rapidly decreased 2 to 3 log units in oxidizing raw groundwaters from snellegem and beernem, belgium (snellegem-raw and beernem-raw, respectively), containing high concentrations of fe2+ (460 to 1,070 microm). the rapid decline in viable counts of aeromonas cells in the oxidizing raw groundwater of snellegem was prevented by the addition of an fe2+ chelator ( ... | 1996 | 8795217 |
| cell elongation and division in spirillum anulus. | | 1959 | 13844899 |
| chromatin patterns in spirillum anulus. | | 1959 | 13844900 |
| [bacterial growth at low substrate concentration]. | | 1963 | 13957378 |
| [bacterial intracytoplasmic organelles and the site of oxidation-reduction activity]. | | 1962 | 13996218 |
| survival potential of aeromonas hydrophila in freshwaters and nutrient-poor waters in comparison with other bacteria. | the survival of a genetically-marked aeromonas hydrophila strain was studied in water microcosms using viable counts. aeromonas hydrophila awwx1 was shown to survive without decline in viable counts for at least 10 d in three of four filtered-autoclaved freshwaters (surface water and groundwater) and in all examined filtered-autoclaved nutrient-poor waters (bottled spring water, milli-q and tap water). however, in the unfiltered waters, a rapid decrease in viable counts of aer. hydrophila awwx1 ... | 1996 | 8852674 |
| chemiluminescence enzyme immunoassay using bacterial magnetic particles. | a novel chemiluminescence enzyme immunoassay using bacterial magnetic particles (bmps) has been developed for highly sensitive and rapid detection of immunoglobulin g. antibody was immobilized onto bmps using the heterobifunctional reagents sulfosuccinimidyl 6-[3'-(2-pyridyldithio) propionamido]hexanoate (sulfo-lc-spdp) and sulfosuccinimidyl 4-(n-maleimidomethyl)cyclohexane-1-carboxylate (sulfo-smcc). for the highly sensitive immunoassay method using these bmps, a good relationship was obtained ... | 1996 | 8865763 |
| [bacterial growth at low substrate concentration]. | | 1963 | 14028703 |
| a systematic study of the genus spirillum which occurs in oxidation ponds, with a description of a new species. | | 1963 | 14058990 |
| a method for the purification of bacterial flagella by ion exchange chromatography. | | 1963 | 14072828 |
| membrane stability and salt tolerance in gram-negative bacteria. | | 1963 | 14076708 |
| [displacement of bacterial "spores": in spirillum praeclarum and during their liberation]. | | 1963 | 14102049 |