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nucleoside antibiotics. 3. isolation, structural elucidation and biological properties of 3'-acetamido-3'-deoxyadenosine from helminthosporium sp. 215. 19694977156
the incidence of bacteriocinogeny in some bacillus species. 19694977451
uv sensitivity of germinating culture of bacillus cereus. 19694976755
change in the absorbancy of bacterial suspensions before initiation of growth.the apparent absorbancy of suspensions of stationary-phase cells of streptococcus lactis strain 354/07 decreased immediately after being placed in fresh media. this optical effect also occurred in defined mixtures of buffer glucose and kcl. cacl(2) caused the absorbancy to increase. cacl(2) and kcl together had about the same effect as kcl alone. srcl(2) could replace cacl(2), but it was less effective by a factor of 10(2). mncl(2), mgcl(2), and nacl were without effect. the absorbancy did not c ...19694975744
[pathogenic effect of aerobic sporular bacteria]. 19694976176
[electron microscope studies on cereus-specific bacteriophages]. 19694992920
[electron microscopic studies of mesophilic and psychrophilic cereus-anthracis-mycoides (cam) bacteriophages]. 19694992003
[defective bacteriophages in bacillus mycoides]. 19694992005
[isolation and activity of a cereus-specific phage]. 19694992006
[antigenic structure of c (cereus-specific) phages phages]. 19694992007
[case of arthritis with bacillus cereus as the secondary etiologic agent]. 19694992097
[effect of accompanying microflora on accumulation of organic substances in the medium during nonsterile cultivation of chlorella]. 19694993450
[determination of the antimicrobial activity of myrtin by the agar diffusion method]. 19694996129
the outgrowing bacterial endospore as a system for the study of cellular differentiation. 19695002258
the outgrowing bacterial endospore as a system for the study of cellular differentiation. 19695004614
[microbiological titration of a number of tetracycline derivatives in newly-formed osseous tissues in the young of albino mice]. 19695004703
electron microscopic study of membranes and walls of bacteria and changes occurring during growth initiation.thin sections of stationary-phase streptococcus lactis cells showed that the wall and membrane are 20 and 7 nm thick, respectively. whole cells were examined by negative staining with ammonium molybdate and by shadowing. on air-drying of whole cells, the membrane pulled away from the wall revealing adhesions between these organelles. adhesions could not be seen after subculture of the stationary-phase cells into complex media or into solutions containing glucose, kcl, and cacl(2) in tris(hydroxy ...19694180467
location of bacterial polysaccharide during various phases of growth.polysaccharide-containing material was located by histochemical staining on ultrathin sections of bacillus cereus and several clostridial species during various phases of growth. these components were located along the cell wall in young vegetative cells and along the developing cortex in sporulating cells. in b. cereus any carbohydrate-containing material present along the forespore membrane was too small to be detected by direct staining. however, in three clostridial species such material was ...19694182530
quantitative assay of a single proteolytic enzyme in a crude mixture of bacterial proteinases. 19694189511
the location of chemical components on ultrathin sections of bacillus cereus embedded in glycol methacrylate. 19694189833
specificity of phenotypic adaptation of bacillus cereus to tetracycline. 19694303655
phosphate transport in bacillus cereus. 19694310720
soluble reduced nicotinamide adenine dinucleotide oxidase from bacillus cereus t spores and vegetative cells. i. purification. 19694311559
soluble reduced nicotinamide adenine dinucleotide oxidase from bacillus cereus t spores and vegetative cells. ii. properties. 19694311560
[studies of some viomycinmethyltetracyclines]. 19694314647
[a study of so-called non-specific food poisoning outbreaks in hungary]. 19704321149
[disinfectant activity of peracetic acid on the spores of bacteria]. 19704323154
arrangement of fatty acyl groups in phosphatidylethanolamine from a fatty acid auxotroph of escherichia coli. 19704324094
cytochromes in a cyanide-resistant strain of bacillus cereus. 19704329720
the effects of nicotinamide on heat resistance of spores of bacillus cereus t. 19704249447
association of the crystalline inclusion of bacillus thuringiensis with the exosporium.thin sections of sporulating cells of bacillus thuringiensis show a marked association between the crystalline inclusion and the exosporium.19704192566
spores of microorganisms. 23. interdependence of intra- and extra-cellular levels of calcium: its effect on the germination of bacterial spores in different media. 19704193500
the effect of fixation on the staining of the bacterial cross cell wall. 19704194094
rapid detection of small numbers of airborne bacteria by a membrane filter fluorescent-antibody technique.bacteria from stirred settling aerosols were recovered and identified by a rapid fluorescent-antibody technique previously described by danielsson. calibrated air samples from serratia marcescens aerosols were drawn through a millipore aerosol filter holder fitted out with a nonfluorescent membrane filter (type hab 047). with the aid of a high-power incident-light ultraviolet microscope, the individual bacterial cells, trapped on the filter, could be inspected after staining with appropriate con ...19704100090
selective effect of salicylate on microbial rna biosynthesis. 19705002789
effect of gas hydrate formers on microorganisms.various bacteria, yeasts, and molds important to the food industry were incubated in aerosol cans containing a c broth and one of the following three gas hydrate formers: propane, dichlorodifluoromethane (f-12), and 1,1-difluoro-1-chloroethane (f-142b). most hydrate formers were tested at three concentrations: low (vapor state), intermediate (liquid state, low level), and high (liquid state, high level). samples were continuously agitated for 48 hr at 21 +/- 3 c. changes in numbers of microorgan ...19705456934
occurrence of crithidia factors and folic acid in various bacteria.crithidia factors and folic acid were found to be widely distributed in culture fluids and in cells of 27 species of bacteria, when cultured under aerobic conditions into the stationary phase. most bacteria excreted more crithidia factors and folic acid than they retained in their cells. one crithidia factor produced by serratia indica and one produced by bacillus cereus differed from biopterin in their chromatographic behavior. the factor excreted by s. indica appeared to be a 2-amino-4-hydroxy ...19705473887
[degree of stability of characterstic properties of bacteria preserved in mineral oil]. 19704998101
[toxic effect of bombyx mori of b. thuringiensis parasporal bodies and culture filtrates]. 19704999947
genetic evidence for heterozygotes in mixed culture of bacillus cereus. 19705000288
aerobic microbes isolated from slaughtered pigs and their public health importance. 19705001153
the "sensitivity" of resting and dividing cells. 19705003582
effect of the cereus lytic enzyme on the chemical bonds of the bacterial cell wall. 19704996700
interference of barbiturates with pyrimidine incorporation. 3. studies on the mechanism of the amobarbital-orotate relationship. 19704998460
pathogenicity of vegetative cells of bacillus popilliae fro mice. 19704998559
[effect of live, killed and supernatant bacillus cereus on experimental amyloidosis in mice, induced by sodium caseinate]. 19704993457
[effect of various antibiotics on the replication of bacteriophages of group cam (cereus anthracis mycoides)]. 19704995557
potentiation by halogen compounds of the lethal action of gamma-radiation on spores of bacillus cereus. 19704995908
mechanism of the inhibition of germination of bacterial spores by gamma-irradiation in the presence of iodoacetamide and iodate. 19704995909
[multiplication and toxigenicity of bacillus cereus in food products stored at different temperatures]. 19704993524
[effect of nitrates in products of vegetable origin on methemoglobin formation]. 19704993525
cir (cell injuring reaction) active substances in culture fluid of bacillus cereus "ms-1063 strain". 19704993666
[the setting free of lixiviatable nitrogen from ureaform by microorganisms]. 19704993682
an introspective view of penicillinase. 19704993702
structure and composition of resistant layers in bacterial spore coats. 19704992199
a particular conformational change of bacillus cereus penicillinase under the action of a new penicillin analogue pyrazocillin. 19704992224
presence of antioxidant materials in bacteria. 19704992304
tryptophan catabolism during sporulation in bacillus cereus.1. two intermediates of tryptophan catabolism were isolated from a sporulating culture of bacillus cereus and identified as anthranilic acid and kynurenine by their spectral properties. 2. during sporulation the rate of formation of anthranilic acid and kynurenine by whole cells increased and reached a maximum at the pre-spore stage. 3. the specific activities of tryptophan pyrrolase and formylase also increased during sporulation and exhibited a maximal activity at the pre-spore stage. 4. kynur ...19704992321
meningitis and bacteremia after ventriculoatrial shunt-revision: isolation of a lecithinase-producing bacillus cereus. 19704992341
[lecithinase formation by bacillus cereus]. 19704992444
[the effect of the level of ground water on the processes of ammonification and nitrification of peat bog soil]. 19704992446
fast sedimenting fractions containing dna from streptomyces griseus. 19704992457
[bacterial insecticides and their use]. 19704992502
aflatoxin b1 effect on enzyme biosynthesis in bacillus cereus and bacillus licheniformis. 19704992531
[effect of ph of food products on the development of bac. cereus group bacteria]. 19704992626
reversible change in iodine sensitivity of penicillinase by alkali treatment. 19704992647
the influence of concentrated electrolytes on the constitutive penicillinase synthesis of b. cereus (short communication). 19704992648
enzymic reduction of the c-terminal dehydroalanyl-lysine sequence in nisin. 19704992696
[lecithinase activity of bacillus cereus strains isolated from various natural sources]. 19704992749
[the value of the lecitho-vitelline reaction in the differential diagnosis of bac. cereus]. 19704992768
some factors affecting degradation of organochlorine pesticides by bacteria. 19704992932
the effect of alkylation on the antimicrobial activities of 7-hydroxy- and 4-hydroxycoumarins. 19704991933
interaction between insecticides and soil. microbiological assay of sevin and meta-iso-systox using bacteria as test organisms. 19704991990
zymograms in agar gel of some animal and bacterial proteinases. 19704991993
proteolytic enzymes and biological inhibitors. ii. naturally occurring inhibitors in sera from different species and their effect upon proteolytic enzymes of various origin. 19704992916
[evaluation of chloramphenicol with bacillus cereus]. 19704993369
[differentiation of the toxicity to mice of bacillus cereus and bacillus thuringiensis from the pathogenicity of bacillus anthracis on mice]. 19704993390
outbreak of food poisoning caused by bacillus cereus. 19704983427
regulation of penicillinase synthesis: evidence for a unified model.the kinetics of penicillinase induction in bacillus cereus 569 was investigated. an increase in the rate of penicillinase synthesis was demonstrated within 30 sec of the addition of inducer (benzylpenicillin); however, the maximum induced rate of penicillinase synthesis was not attained until at least 30 min after the addition of inducer. in contrast to earlier claims, a quantitative estimate showed that the penicillinase messenger ribonucleic acid (mrna) half-life is approximately 2 min. these ...19704983646
chemical composition of exosporium from spores of bacillus cereus.homogeneous fragments of exosporium were extricated in centigram amounts from dormant spores of bacillus cereus and analyzed for intrinsic constituents. the membrane proved to be chemically complex but not unique, consisting mainly of protein (52%), amino and neutral polysaccharides (20%), lipids (18%), and ash (4%). seventeen common amino acids were identified by chromatography, and were present in usual proportions except for low levels of cystine-cysteine, methionine, tyrosine, and histidine. ...19704983648
macromolecular synthesis during microcycle sporogenesis of bacillus cereus t.microcycle sporogenesis induced in bacillus cereus t by phosphate limitation occurs over a narrow range of phosphate to spore inoculum ratios. sufficient phosphate is required to satisfy the demands for a twofold increase in deoxyribonucleic acid; net ribonucleic acid synthesis is not required. the total ribonucleic acid content of the culture was variable, and deoxyribonucleic acid synthesis was restricted to a twofold increase. developmental changes during outgrowth occurred synchronously, whe ...19704983651
properties of penicillinase from bacillus cereus 569. 19704986078
[effect of oleandomycin in triacetyloleandomycin on the result of determination of biological activity of the latter by agar diffusion method]. 19704986115
synthesis of a factor stimulating transcription in outgrowing bacillus cereus spores. 19704986265
in vitro determination of bacillus thuringiensis, bacillus cereus, and related bacilli. 19704986479
new antibacterial agent isolated from the avocado pear.a group of eight new long-chain aliphatic compounds recently isolated from the avocado and some derivatives thereof were tested for antibacterial activity on 13 different species of bacteria and a yeast. some of these compounds inhibited the growth of microorganisms. 1,2,4-trihydroxy-n-hepadeca-16-en was found to be the most active, inhibiting certain gram-positive bacteria at 4 mug/ml.19704985830
ion-exchange separation and automated assay of complex mixtures of amino acids and hexosamines. 19704985912
ribosomes from spores of bacillus cereus t.data from analytical ultracentrifuge studies suggest that polymers of ribosomes exist in dormant spores of bacillus cereus t.19704985933
derepression of beta-lactamase (penicillinase in bacillus cereus by peptidoglycans.in bacillus cereus 569 a cellular inducer of beta-lactamase was isolated which has the same constituents and basic structure as the soluble peptidoglycan found in sporulation, extracts from spores, and germination extracts, and which was previously called "spore-peptide." the material has been extensively purified and characterized. two acid-soluble, high-molecular-weight peptidoglycan fractions containing muramic acid, glucosamine, diaminopimelic acid, d-aspartate, and d- and l-alanine, -lysine ...19704985545
possible involvement of beta-lactamase in sporulation in bacillus cereus.nonreverting beta-lactamase-negative strains were isolated from the beta-lactamase-constitutive strain, bacillus cereus 569 h. these strains differed from both beta-lactamase-inducible and -constitutive strains not only in failure to produce beta-lactamase but also in failure to autolyze on aging, delayed sporulation, and failure to release free spores from sporangia when produced. the addition of b. cereus beta-lactamase of 15% purity to a final concentration of 10 iu/ml stimulates sporulation ...19704985546
activity of bacillus cerus proteinases in milk. 19704985290
differentiation between heat resistance and octyl alcohol resistance of the cells of bacillus cereus t. 19704984937
phosphorylation of 1-alkenyl-2-acylglycerol and preparation of 2-acylphosphoglycerides. 19704983883
kinetics of n-ethylmaleimide inhibition of l-alanine-induced germination of bacillus cereus spores. 19704984014
low-ph activation of bacillus cereus spores.heat activation of bacterial spores at low ph was investigated in detail. unlike activation of spores in distilled water at a neutral ph, activation at low ph involves two superimposed processes: enhanced activation and death. low-ph-activated spores failed to germinate in d-alanine, in contrast to spores activated at neutral ph, owing to the abolition of alanine-racemase activity. morphological and permeability changes such as release and partial disruption of spores were dipicolinic acid-obser ...19704984072
lipid composition of bacillus cereus during growth and sporulation.the lipid composition of bacillus cereus during growth and sporulation was examined. the total lipid extract accounted for 2 to 3% of the dry weight of the cells and consisted of neutral lipids (30 to 40%) and phospholipids (60 to 70%). phospholipids were separated by thin-layer chromatography into eight components; phosphatidyl ethanolamine, phosphatidyl glycerol, and diphosphatidyl glycerol were the major phospholipids and accounted for over 90% of the total. also identified was a diglycosyl d ...19704984075
iodine sensitivity of bacillus cereus penicillinase. 19704984552
the effect of copper on the radiosensitivity of bacteria. 19704984594
biochemical studies of bacterial sporulation and germination. 18. free amino acids in spores. 19704984698
biochemical studies of bacterial sporulation and germination. xix. phosphate metabolism during sporulation. 19704984699
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