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chemical components in the cell wall of salmonella typhimurium affecting its virulence and immunogenicity in mice. 19694891942
recombination between a thermosensitive kanamycin resistance factor and a nonthermosensitive multiple-drug resistant factor.the thermosensitive kanamycin (km) resistance factor, r(km)(t), and a nonthermosensitive multiple-drug resistance factor, r(100), were simultaneously introduced into escherichia coli and salmonella typhimurium. the temperature sensitivity of both r factors remained unchanged as long as they replicated independently. under certain conditions, however, a new thermosensitive r factor harboring resistance markers for kanamycin, streptomycin (sm), and sulfanilamide (sa) was obtained by recombination ...19694892382
salmonella typhimurium pancarditis. 19694892937
methionyl transfer rna synthetase mutants of salmonella typhimurium which have normal control of the methionine biosynthetic enzymes. 19694892972
rna from salmonella typhimurium hybridizable with r-factor dna. 19694893358
salmonella arteritis--preoperative diagnosis and cure of salmonella typhimurium aortic aneurysm. 19694893476
death of salmonella typhimurium and escherichia coli in the presence of freshly reconstituted dehydrated garlic and onion.the kinetics of the decline of populations of salmonella typhimurium inoculated into freshly reconstituted dehydrated onion and garlic powders was studied. measurable bactericidal activity was observed for onion and garlic concentrations of 1 and 5% (w/v), respectively, with maximal death rates occurring for concentrations of 5 and 10%. at these concentrations, the decimal reduction times were 1.1 and 1.2 hr, respectively, for resting cell cultures and 1.8 and 2.1 hr, respectively, for growing c ...19694894725
heat resistance of salmonella in various egg products.the heat-resistance characteristics of salmonella typhimurium tm-1, a reference strain in the stationary phase of growth, were determined at several temperatures in the major types of products produced by the egg industry. the time required to kill 90% of the population (d value) at a given temperature in specific egg products was as follows: at 60 c (140 f), d = 0.27 min for whole egg; d = 0.60 min for whole egg plus 10% sucrose; d = 1.0 min for fortified whole egg; d = 0.20 min for egg white ( ...19694890741
cometabolism and gas chromatography for the sensitive detection of bacteria.salmonella typhimurium, escherichia coli, and staphylococcus aureus were grown in media containing one of several halogenated organic acids which the bacteria metabolized but could not use as a major carbon and energy source for growth. gas chromatographic techniques were employed to detect the presence of low population densities by analysis for products formed by the microorganisms. by virtue of the presence of the cometabolizable halogenated substrate in the medium, the sensitivity of procedu ...19694890747
the purification and characterization of o-acetylserine sulfhydrylase-a from salmonella typhimurium. 19694891157
suppression of proline requirement of proa and proab deletion mutants in salmonella typhimurium by mutation to arginine requirement.eleven variants able to grow without proline (provided arginine was absent) were obtained by spontaneous mutation from salmonella typhimurium lt7 proa and proab deletion mutants. suppression resulted from mutation at argg, which specifies n(alpha)-acetylornithine delta-transaminase. in the absence of exogenous arginine, deficiency of this enzyme would cause derepression of the arginine pathway and accumulation of n-acetylglutamic gamma-semialdehyde. n-acetylglutamic gamma-semialdehyde, if deacet ...19694891261
polynucleotide sequence relationships among members of enterobacteriaceae.polynucleotide relationships were examined among many representatives of the enterobacteriaceae by means of agar, membrane filter, and hydroxyapatite procedures. the amount of deoxyribonucleic acid (dna) that reassociated was dependent, especially in interspecific reactions, on the annealing temperature. in only three cases: escherichia coli-shigella flexneri, salmonella typhimurium-s. typhi, and proteus mirabilis-p. vulgaris, was relative interspecific duplex formation 80% or higher. in most ca ...19694891264
cellular defense in an arthropod in response to infection with a salmonella typhimurium strain. 19694891326
[splenic abscess caused by salmonella typhimurium]. 19694888808
purification and properties of n-acetylmannosamine kinase from salmonella typhimurium. 19694889177
oxidation d-malic and beta-alkylmalic acids wild-type and mutant strains of salmonella typhimurium and by aerobacter aerogenes.a mutant strain of salmonella typhimurium (sl 1634 dml-51) capable of growth on d-malate as sole carbon source was shown to produce d-malic enzyme. this enzyme was absent in the parent wild-type strain which was unable to grow on d-malate. growth of the mutant on d-malate also resulted in a greatly increased level of beta-isopropylmalic enzyme compared with its level in the wild-type strain grown on citrate or l-malate. the d-malic and beta-isopropylmalic enzymes, both of which catalyze a nicoti ...19694889267
an outbreak of salmonella typhimurium infection in cattle associated with the spreading of slurry. 19694885749
chromosome replication in salmonella typhimurium.the replication of the salmonella typhimurium chromosome was studied. as with e. coli 15t(-), replication was sequential. after amino acid starvation, replication proceeded from a unique and heritable region of the chromosome. 5-bromouracil, when substituted for thymine, did not disturb the sequence of replication nor did it initiate extra replication cycles. by labeling the origin and the terminus of the chromosome with (3)h- and (14)c-thymine, respectively, it was possible to determine that th ...19694886297
effect of volatile fatty acids on salmonella typhimurium. 19694886302
influence of bacterial infection on serum enzymes of white rats.infection of white rats with francisella tularensis (pasteurella tularensis) and salmonella typhimurium and exposure to the endotoxin of s. typhimurium stimulated significant increases in various serum enzymes including aldolase, lactate dehydrogenase, phosphohexose isomerase, isocitrate dehydrogenase, and glutamate-oxalacetate transaminase. the rates of changes in enzymatic activity after infection were directly related to the size of infecting dose and to the type of infective agent employed. ...19694886856
regulation of branched-chain amino acid biosynthesis in salmonella typhimurium: isolation of regulatory mutants.5',5',5'-trifluoro-dl-leucine inhibited the activity of alpha-isopropylmalate synthetase (the initial enzyme unique to leucine biosynthesis) as well as the growth of salmonella typhimurium. mutants of s. typhimurium resistant to the analogue were isolated and characterized. in most cases, they overproduced and excreted leucine or leucine, valine, and isoleucine as a result of an alteration in the regulation of branched-chain amino acid biosynthesis. biochemical and genetic tests allowed the muta ...19694887507
repression of the histidine operon: effect of the first enzyme on the kinetics of repression.kinetic studies on repression of the enzymes for histidine biosynthesis in salmonella typhimurium showed that, upon addition of histidine to a derepressed culture, the enzymes became repressed in a temporal sequence which corresponds with the positional sequence of the genes in the histidine operon. this serial pattern of repression occurred under conditions in which the feedback site of the first enzyme for histidine biosynthesis is intact. when this site was rendered nonfunctional the pattern ...19694887508
cold-sensitive mutations in salmonella typhimurium which affect ribosome synthesis.a number of mutations (45) expressed as cold-sensitive conditional lethal pheno-types were screened by transduction for their linkage to the streptomycin-resistance locus; 7 showed such linkage. of these, two were studied in greater detail. the sedimentation profiles of ribosomes from cultures grown at low temperature differed from wild type and from one another. both mutants lost ribonucleic acid control at low temperature. it is suggested that a high proportion of mutants expressing a cold-sen ...19694887510
immunochemical and enzymatic comparisons of the tryptophan synthase alpha subunits from five species of enterobacteriaceae.the reactive surface structures of alpha subunits of tryptophan synthase from escherichia coli, shigella dysenteriae, salmonella typhimurium, aerobacter aerogenes, and serratia marcescens were compared by measuring (i) their reactivities in micro-complement-fixation assays with antibodies directed specifically to e. coli wild-type alpha subunit, (ii) their reactivities in enzyme neutralization assays with the same antibodies, and (iii) their binding affinities for tryptophan synthase beta(2) sub ...19694887511
salmonella abony-salmonella typhimurium recombinant nonvirulent for the mouse.a previous genetic investigation involving a mouse-nonvirulent salmonella abony donor (high frequency of recombination) and a virulent s. typhimurium recipient indicated that two unlinked "low-virulence" loci determined nonvirulence. a nonvirulent recombinant was analyzed to determine the basis for its nonvirulence. the recombinant was smooth (like the parental strains) and prototrophic. the doubling time in mouse serum of the recombinant and the s. abony parent (both streptomycin-resistant) was ...19694887514
2-deoxyribose gene-enzyme complex in salmonella typhimurium: regulation of phosphodeoxyribomutase.phosphodeoxyribomutase, the enzyme which catalyzes the interconversion of 2-deoxyribose-1-phosphate to 2-deoxyribose-5-phosphate, has been partially purified from salmonella typhimurium. the enzyme had an absolute requirement for manganese ion and was stimulated by glucose-1, 6-diphosphate. phosphodeoxyribomutase was induced by deoxyribose-5-phosphate and was coordinately regulated with the enzymes thymidine phosphorylase and deoxyribose-5-phosphate aldolase, type ii. mutants deficient in these ...19694887516
chorismate mutase-prephenate dehydratase. partial purification and properties of the enzyme from salmonella typhimurium. 19694887851
measurement of rates of phagocytosis: the use of cellular monolayers.a method has been developed for measuring the rate of phagocytosis rather than the quantity of particles ingested per cell when the process is virtually complete. the method, which is simpler and more rapid than those described previously, utilizes cellular monolayers, radioactive particles, and short incubation times. under the conditions described, the rate of uptake of particles by either guinea-pig peritoneal or human blood leukocytes was proportional to both cell concentration and the time ...19694881437
immunologic response of guinea pigs to salmonella typhimurium bacterin. 19694883073
cycasin: detection of associated mutagenic activity in vivo.cycasin and its lagycone, methylazoxymethanol, increase the mutant frequency of salmonella typhimurium histidine auxotrophs when tested in the hostmediated assay. as expected, the degree of cycasin-related mutagenic activity depends on the facility with which the compound can be enzymatically deglucosylated by the normal intestinal flora.19694883889
location of genes for motility and chemotaxis on the escherichia coli genetic map.in escherichia coli, the following genes are involved in motility and chemotaxis. the h gene is the structural gene for flagellin. mutation in the mot gene results in paralysis of the flagella, and mutation in the fla genes leads to an absence of flagella. the chea, cheb, and chec genes are required for chemotaxis. the chromosomal location of these genes has now been determined. the majority are clustered in a small region around uvrc, between his and arod, in the order his-chec-h-uvrc-mot-chea- ...19694884810
evidence for a methionine-controlled homoserine dehydrogenase in salmonella typhimurium.evidence is presented for the existence of a second homoserine dehydrogenase in salmonella typhimurium. the formation, but not the activity, of this enzyme is controlled by methionine. two distinct homoserine dehydrogenases were separated from wild-type cells by diethylaminoethyl (cellulose) column chromatography. sucrose gradient ultracentrifugation gave molecular weight estimates for the threonine-regulated enzyme (hsd i) of 220,000 to 240,000 and for the methionine controlled enzyme (hsd ii) ...19694884811
genetic analysis of carbohydrate transport-deficient mutants of salmonella typhimurium.mutants (car) isolated from salmonella typhimurium were unable to utilize or ferment the following carbohydrates (all d-configuration): glucose, fructose, mannose, n-acetylglucosamine, sorbitol, mannitol, maltose, melibiose, and glycerol. the mutants did utilize galactose, glucose 6-phosphate, gluconic acid, glucuronic acid, pyruvate, and l-lactate. biochemical analysis showed that there were two classes of mutants, each lacking one component of a phosphotransferase system. cara mutants were def ...19694884816
control of carbamyl phosphate synthesis in salmonella typhimurium. 19694895359
studies on repression of the histidine operon. ii. the role of the first enzyme in control of the histidine system.recent studies on repression of the enzymes for histidine bio-synthesis in salmonella typhimurium demonstrated that the kinetic pattern in which the enzymes become repressed is influenced by the state of the feedback-sensitive site of the first enzyme of the pathway (kovach et al., j. bacteriol., 97, 1283 (1969)). in the present study we demonstrate that under certain conditions alteration of the feedback-sensitive site of the first enzyme prevents repression of the histidine operon. we conclude ...19694895539
control of isoleucine, valine, and leucine biosynthesis. vi. effect of 5',5',5'-trifluoroleucine on repression in salmonella typhimurium.the leucine analogue 5',5',5',-trifluoroleucine (fluoroleucine) replaced leucine for repression of the isoleucine-valine biosynthetic enzymes in salmonella typhimurium. in contrast, the analogue had no effect on derepression of the leucine biosynthetic enzymes in leucine auxotrophs grown on limiting amounts of leucine. the effect of fluoroleucine on repression appeared to be specific for leucine since derepression of the isoleucine-valine enzymes due to an isoleucine or valine limitation was not ...19694895839
oncoupling of protein and ribonucleic acid synthesis by 5',5',5'-trifluoroleucine in salmonella typhimurium.the addition of 5',5',5'-trifluoroleucine (fluoroleucine) to leucine auxotrophs of salmonella typhimurium permitted protein but not ribonucleic acid (rna) synthesis to continue after leucine depletion. the uncoupling of the formation of these macromolecules by fluoroleucine was apparent if rna and protein synthesis was measured either by the uptake of radioactive precursors or by direct chemical determinations. the analogue did not appear to be an inhibitor of rna formation, since it was as effe ...19694895840
thermal reversal of ultraviolet-irradiation damage in salmonella typhimurium.effects of ultraviolet irradiation on lysogenic and nonlysogenic salmonella typhimurium grown at 25 c are partially reversed by shifting cultures to 43 c immediately after irradiation.19694895852
the anthranilate synthetase-5-phosphorylribose 1-pyrophosphate phosphoribosyl transferase complex of the tryptophan pathway in salmonella typhimurium. purification by the in vitro assembly of its subunits. 19694896460
i sex factors and chromosomal recombination in salmonella typhimurium. 19694896655
persistence of salmonella typhimurium on fabrics.the persistence of salmonella typhimurium (v-31) on wool blanket, wool gabardine, cotton sheeting, cotton knit jersey, cotton terry cloth, and cotton wash-and-wear fabrics was studied. three methods of exposure were employed to contaminate the fabrics: direct contact, aerosol, and a lyophilized mixture of bacteria and dust having a high content of textile fibers. after contamination, the fabrics were held in 35 or 78% relative humidity at 25 c. the persistence time of s. typhimurium on fabrics h ...19694896883
genetic eparation of the inosinic acid cyclohydrolase-transformylase complex of salmonella typhimurium.genetic and enzymatic analyses were made with the purh mutants of salmonella typhimurium. these mutants are purine auxotrophs which are deficient in the conversion of phosphoribosyl-aminoimidazolecarboxamide (aic) to inosine-5'-monophosphate (imp). two steps are required for this process: phosphoribosyl-aic transformylase (ec 2.1.2.3) and imp cyclohydrolase (ec 3.5.4.10). genetic analysis identified two complementation groups, i and ii, and a third group of noncomplementing mutants (i-ii). mutat ...19694897111
[urinary excretion of salmonella typhimurium]. 19694897295
histidine-2-oxoglutarate aminotransferase activity in salmonella typhimurium. 19694897942
identification of episilon-n-methyllysine in spirillum serpens flagella and of episilon-n-dimethyllysine in salmonella typhimurium flagella. 19694897951
action of hydrogen peroxide on growth inhibition of salmonella typhimurium. 19694898306
effect of denatured dna's on salmonella typhimurium ribonuclease i. 19694898492
genetic blocks and unique features in the biosynthesis of 5'-phosphoribosyl-n-formylglycinamide in salmonella typhimurium. 19694889464
salmonella typhi murium meningitis in an infant. case report. 19694889776
genetic evolution of bacteriophage. i. hybrids between unrelated bacteriophages p22 and fels 2.a new bacteriophage species, designated f22, was isolated from phage p22 stocks grown on salmonella typhimurium q1 lysogenic for fels 2 at a frequency of less than 10(-11). p22 has a very short tail with a hexagonal base plate and six spikes. phage fels 2 is morphologically similar to e. coli t-even phages, having a long tail with a contractile sheath and carrying no genetic region related to p22. phage f22 is morphologically and serologically indistinguishable from fels 2, but carries the c(c(1 ...19694890254
phage receptor development after the addition of galactose to a galactose-epimeraseless mutant of salmonella typhimurium. 19694903166
operator constitutive mutations in the leucine operon of salmonella typhimurium. 19694903803
suppression by gene substitution for the leud gene of salmonella typhimurium. 19694904220
[study by transduction on nitrate-, tetrathionate-, and thiosulfate-reductases of salmonella typhimurium]. 19694904317
level of messenger rna transcribed from the histidine operon in repressed, derepressed and histidine-starved salmonella typhimurium. 19694904408
trichinella spiralis as the vector of salmonella typhi murium. 19694904593
interactions in the recovery of salmonella typhimurium damaged by heat or gamma radiation. 19694905074
resistance of escherichia coli and salmonella typhimurium to carbenicillin. 19694904092
frameshift revertant of salmonella typhimurium producing histidinol dehydrogenase with a sequence of four extra amino acid residues. 19694904102
[biosynthesis of the pyrimidine portion of thiamine: source of carbons 2 and 4 in salmonella typhimurium]. 19694905388
radiation--sensitive and recombinationless mutants of salmonella typhimurium. 19694905741
mutants of salmonella typhimurium lt2 sensitive to ultraviolet and temperature. 19694905746
"self-feeding" strain of salmonella typhimurium with a mutation in the trpb gene and nutritional requirements of trpa gene mutants.an indole-requiring (ind(-)) mutant of salmonella typhimurium, isolated from a culture of a leaky trpa mutant, was genetically analyzed by p22-mediated transduction. the mutation site giving the ind(-) phenotype was shown to be in trpb, the second gene of the trp operon. a second mutation at this site resulted in change of nutritional requirement from indole to anthranilic acid (anth(-)). this phenotype is normally associated with mutations in the first trp gene, trpa. however, the anth(-) mutan ...19694905537
thermal injury and recovery of salmonella typhimurium and its effect on enumeration procedures.exposure of salmonella typhimurium 7136 to sublethal heating produced a temporary change in the tolerance of the organism to a particular stress medium. after sublethal heat treatment at 48 c for 30 min, greater than 90% of the viable population was unable to reproduce on levine eosin methylene blue agar containing 2% nacl. this sensitivity was dependent on the ph of the heating menstruum. in addition, the heated cells displayed a sensitivity to brilliant green agar, levine eosin methylene blue ...19694906998
the effect of thorotrast on the resistance of mice to experimental infection with escherichia coli and salmonella typhimurium. 19694898785
resistance of salmonella typhimurium mutants to galactose death.a class of galactose-resistant mutants has been derived from strains of salmonella typhimurium which are defective in uridine diphosphoglucose-4-epimerase. resistant strains are phenotypically similar to parent organisms but do not lyse in the presence of galactose. low levels of functional epimerase can be detected in induced cells grown at 20 c but not at 37 c, and acid is not produced from galactose. sufficient galactose is synthesized at reduced temperatures to fabricate smooth lipopolysacch ...19694898980
isolation and partial characterization of an immunogenic moiety obtained from salmonella typhimurium.ribosomal preparations obtained from salmonella typhimurium by differential centrifugation and sodium dodecyl sulfate (sds) treatment of the bacillary lysate were found to be immunogenic in f(1) hybrid (c(3)h/hej x dba/2j) and albino swiss mice, as determined by progressive host survival. the immunity obtained was independent of the need for adjuvant and dependent on the dosage of immunogen given. immunizations with the ribosomal preparations induced an immune response comparable to that obtaine ...19694898982
compounds which serve as the sole source of carbon or nitrogen for salmonella typhimurium lt-2.about 600 compounds were screened as possible carbon or nitrogen sources for salmonella typhimurium lt-2. about 100 utilizable compounds were found.19694898986
suppression of amber and ochre mutants in salmonella typhimurium by a mutant f'-1-gal factor carrying an ochre suppressor gene.a salmonella typhimurium strain was given the amber mutation hisc527 by transduction, made galactose-negative by mutation, then infected with the f'-1-gal factor. of 107 spontaneous and mutagen-induced histidine-independent mutants tested, 3 proved to result from suppressor mutations within the f' factor. the mutant f' factors, when transferred to s. typhimurium and e. coli auxotrophs, suppressed amber and ochre but not uga or missense mutants, and are inferred to carry ochre suppressor genes. a ...19694898991
new methionine structural gene in salmonella typhimurium.eight meth mutants in salmonella typhimurium with closely linked sites of mutation which could grow only on methionine were isolated from a mete mutant deficient in n(5)-methyltetrahydropteroyltriglutamate-homocysteine transmethylase; their deficiency in cobalamin-dependent n(5)-methyltetrahydrofolate-homocysteine transmethylase was supported by the results of enzyme studies of one of them. cotransduction of meth and meta (homoserine o-transsuccinylase) mutants was obtained, thus revealing linka ...19694899000
biosynthesis of cell wall lipopolysaccharide in mutants of salmonella. v. a mutant of salmonella typhimurium defective in the synthesis of cytidine diphosphoabequose.a mutant of salmonella typhimurium lt2 was found to be unable to convert cytidine diphospho-4-keto-6-deoxy-d-glucose into cytidine diphosphoabequose. the mutation maps in the rfb gene cluster, which is known to be involved in the biosynthesis of the peripheral, "o side-chain" portion of cell wall lipopolysaccharide. in spite of the fact that, in the o side chains, abequose is not a part of the main chain but occurs as short branches, the mutant appears to be unable to polymerize oligosaccharide ...19694899003
externally suppressible frameshift mutant of salmonella typhimurium.prototrophic revertants of icr-191a-induced frameshift mutant hisd3018 have been induced spontaneously by icr-191a and n-methyl-n'-nitro-n-nitrosoguanidine (ng) treatment. in each case two genetically distinct prototroph classes were differentiated by transducibility into his deletion recipients: (i) transducible, generally fast-growing revertants within the hisd gene producing from 10 to 100% of normal amounts of histidinol dehydrogenase and (ii) nontransducible slow-growing prototrophs with ve ...19694899004
nature of the hisd3018 frameshift mutation in salmonella typhimurium.histidinol dehydrogenase from three differing revertants of icr-191a-induced frameshift hisd3018 has been purified and examined for amino acid replacements. the enzyme from one spontaneously arising revertant, r7, contains an extra proline residue, whereas that from another, r5, contains an extensive frameshifted sequence, four amino acid residues of which have been identified to date. the amino acid replacement data are in agreement with the in vitro code word assignments and allow the characte ...19694899005
genetic control of histidine degradation in salmonella typhimurium, strain lt-2. 19694899017
genetic and metabolic control of histidase and urocanase in salmonella typhimurium, strain 15-59. 19694899018
inhibition of aminoimidazole ribotide biosynthesis in salmonella typhimurium by aminotriazole. 19694899644
host-controlled restriction and modification of salmonella typhimurium. 19694899947
salmonella typhimurium pericarditis. 19694900584
salmonella typhimurium infection in house sparrows. 19694900690
[episomic resistance factors in enterobacteriaceae. 38. virulence of salmonella typhimurium lt-2 with various r factors to mice]. 19694900712
[episomic resistance factors in enterobacteriaceae. 39. growth rate of salmonella typhimurium lt-2 carrying various r factors]. 19694900713
a quantitative comparison of the antigenic structure of a virulent and an avirulent strain of salmonella typhimurium. 19694900833
the response to salmonella typhimurium antigens by two different strains of mice. 19694900834
deoxycholate-treated, nontoxic, whole-cell vaccine protective against experimental salmonellosis of mice.a vaccine prepared from the residue after extraction of whole cells of salmonella typhimurium with 2% sodium deoxycholate proved to be nontoxic and highly immunogenic. the material was not lethal for mice at 6.0 mg and was essentially nontoxic in rabbit skin, whereas endotoxic activity was found in the dialyzed extract. a high dosage, above 2.0 mg, was less protective than lower doses, indicating a degree of "immunologic paralysis." three inoculations of low doses, 0.25 mg each, induced protecti ...19694901358
purification and properties of anthranilate synthase from salmonella typhimurium. 19694901372
the dog as a symptomless carrier of salmonella typhimurium. 19694901481
[salmonella osteomyelitis in reference to salmonella typhimurium epidemics in a newborn infant ward]. 19694901879
host-controlled restriction mutants of salmonella typhimurium. 19694902398
transduction of pro+ to salmonella typhimurium proab47 by phage p22. 19694902399
recombination in h1, the gene determining the flagellar antigen-i of salmonella typhimurium; mapping of h1 and fla mutations. 19694902624
structural studies on the m-antigen produced by salmonella typhimurium 395mro-m. 19694902685
structural analysis of colanic acid from escherichia coli by using methylation and base-catalysed fragmentation. comparison with polysaccharides from other bacterial sources.essentially the same methanolysis products were obtained after methylation of the slime and capsular polysaccharides from escherichia coli k12 (s53 and s53c sub-strains) and the slime polysaccharides from e. coli k12 (s61), aerobacter cloacae n.c.t.c. 5290 and salmonella typhimurium sl1543. these were the methyl glycosides of 2-o-methyl-l-fucose, 2,3-di-o-methyl-l-fucose, 2,3-di-o-methyl-d-glucuronic acid methyl ester, 2,4,6-tri-o-methyl-d-glucose, 2,4,6-tri-o-methyl-d-galactose and the pyruvic ...19694902692
influence of age and inoculum level on shed pattern of salmonella typhimurium in chickens. 19694902775
factors influencing the intestinal infection of chickens with salmonella typhimurium. 19694902776
structure of cell wall lipopolysaccharide from salmonella typhimurium. i. linkage between o side chains and r core. 19694306284
regulation and mechanism of phosphoribosylpyrophosphate synthetase. i. purification and properties of the enzyme from salmonella typhimurium. 19694306285
subcellular distribution and function of ubiquinone in salmonella typhimurium. 19694310369
the differential inactivation of histidinol dehydrogenase from salmonella typhimurium by sulfhydryl reagents. 19694310837
structural studies on colanic acid, the common exopolysaccharide found in the enterobacteriaceae, by partial acid hydrolysis. oligosaccharides from colanic acid.the exopolysaccharide slime colanic acid has been isolated from representative strains of escherichia coli, salmonella typhimurium and aerobacter cloacae. analysis showed that each polymer contained glucose, galactose, fucose and glucuronic acid, together with acetate and pyruvate. the molar proportions of these components were 1:1.8:1.9:1:1:1 approximately. on the basis of periodate oxidation of the natural and deacetylated polysaccharide, glucose is proposed as the site of the acetyl groups. t ...19694311825
phosphorylation of methyl-alpha-d-glucopyranoside in polymyxin b-treated salmonella typhimurium.phosphoenolpyruvate-dependent phosphorylation of methyl-alpha-d-glucopyranoside in salmonella typhimurium is increased by the membrane active polypeptide antibiotic polymyxin b whereas active transport ability is abolished.19694311870
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