Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| [the microbiological test as a method for determination of plant growth regulators]. | 1968 | 4968774 | |
| inhibition of "serine" esterases by phenylarsonic acids. alpha-chymotrypsin and the subtilisins. | 1968 | 4968801 | |
| influence of spore moisture content on the dry-heat resistance of bacillus subtilis var. niger. | the dry-heat resistance of bacillus subtilis var. niger spores located in or on various materials was determined as d and z values in the range of 105 through 160 c. the systems tested included spores located on steel and paper strips, spores located between stainless-steel washers mated together under 150 inch-lb and 12 inch-lb of torque, and spores encapsulated in methylmethacrylate and epoxy plastics. d values for a given temperature varied with the test system. high d values were observed fo ... | 1968 | 4968962 |
| metabolism of tryptophans by pseudomonas aureofaciens. vi. production of pyrrolnitrin by selected pseudomonas species. | twenty-nine strains of pseudomonas, classified as p. fluorescens biotype d or e or as p. multivorans, were examined for the production of pyrrolnitrin, an antifungal agent synthesized in p. aureofaciens. eight strains were shown to produce pyrrolnitrin in shake-flask fermentation. four cultures were from the multivorans taxon, and the remaining four were members of the fluorescens group. the antifungal agent produced in these strains was isolated and shown to be pyrrolnitrin by comparison with a ... | 1968 | 4968963 |
| sporicidal activity of sodium hypochlorite at subzero temperatures. | sodium hypochlorite was an excellent disinfectant at low temperatures. with the addition of ethylene glycol to prevent freezing, hypochlorite solutions at low free available chlorine concentrations, were effective against bacillus subtilis var. niger spores from 0 to -40 c. the effectiveness of this decontaminant was influenced by temperature, ph, and concentration, with ph 7.2 the optimum for decontamination at all temperatures and concentrations. | 1968 | 4968965 |
| selective inhibition of initiation of germination of bacterial endospores. | 1968 | 4968967 | |
| influence of gamma-irradiation and heating in the presence of a bactericide on the inactivation of bacillus subtilis spores. | 1968 | 4968968 | |
| effect of bacillus subtilis on growth and sclerotium formation by rhizoctonia solani. | 1968 | 4969085 | |
| [bacillus subtilis in therapy and prevention of disease]. | 1968 | 4969138 | |
| inactivation and mutagenesis on isolated dna. ii. kinetics of mutagenesis and efficiency of different mutagens. | 1968 | 4969219 | |
| phase transitions in ribonucleic acid synthesis during germination of bacillus subtilis spores. | 1968 | 4969222 | |
| [action of urea on the anzymatic activity of levan-sucrase of b. subtilis]. | 1968 | 4969236 | |
| transformation in bacillus cereus 569: a correction of strain designation. | 1968 | 4969794 | |
| a reversible inhibition of the germination of bacterial spores. | 1968 | 4969803 | |
| organization of polymers in the cell walls of some bacilli. | 1968 | 4969845 | |
| characteristics of extracellular protease formation by bacillus subtilis and its control by amino acid repression. | 1968 | 4969865 | |
| the use of biochemical mutants of test-bacteria in the screening programs with streptomyces. | 1968 | 4969598 | |
| deoxyribonucleic acid antibody: a method to detect its primary interaction with deoxyribonucleic acid. | antibody to dna in human serums can be detected by the ammonium sulfate method. this sensitive and specific technique, which measures the primary interaction between dna and antibody to dna, is based on the observation that free dna is soluble in 50-percent saturated ammonium sulfate whereas antibody-bound dna is insoluble. | 1968 | 4969617 |
| kinetics of death induced by penicillin and chloramphenicol in synchronous cultures of escherichia coli. | 1968 | 4969433 | |
| [decisive importance of the correlation of nuclei, mitochondria and the culture medium containing kanamycin in the study of its interaction with the cellular components and intracellular]. | 1968 | 4969471 | |
| properties of escherichia coli deoxyribonucleoprotein as compared with the deoxyribonucleoprotein of higher organisms. | 1968 | 4968582 | |
| synthesis of teichoic acids. vii. synthesis of teichoic acids during spore germination. | the synthesis of teichoic acids has been examined during germination in bacillus licheniformis atcc 9945 and in b. subtilis w-23. teichoic acids are absent from the spores of both organisms. b. licheniformis spores lack the enzymes responsible for teichoic acid synthesis. the appearance of these enzymes during germination is correlated with the appearance of teichoic acids in the cell. the appearance of teichoic acid-synthesizing enzymes and of teichoic acids in the cell are inhibited by the add ... | 1968 | 4970221 |
| new procedures for purification of l-asparaginase with high yield from escherichia coli. | l-asparaginase is now known to be a potent antineoplastic agent in animals and has given complete remission in some human leukemias. extensive clinical trials of this enzyme, however, were not possible in the past because of inadequate production of this substance. we have developed practical procedures for producing l-asparaginase in yields of sufficient quantity and purity for more extensive clinical evaluation. the nutritional requirements for optimal production of biologically active l-aspar ... | 1968 | 4970225 |
| chromosomes in bacillus subtilis spores and their segregation during germination. | spores of a thymine-requiring mutant of bacillus subtilis 168 leucine(-), indole(-), thymine(-)) were uniformly labeled with (3)h-thymidine. these were seeded on thinlayer agar plates where they germinated into long-chained microcolonies. autoradiograms were used to measure the distribution of labeled deoxyribonucleic acid in the chains of cells, which ranged in length from 2 to 32 cells. four major grain clusters appeared in most chains. these clusters were homogeneous in size; their grain numb ... | 1968 | 4970228 |
| genetic mapping of a locus which regulates the production of pigment associated with spores of bacillus subtilis. | 1968 | 4970229 | |
| enhancement and inhibition of transformation in bacillus subtilis. | 1968 | 4970230 | |
| pathway of purine nucleotide synthesis in bacillus subtilis. | 1968 | 4970231 | |
| inhibition of the synthesis of the alkaline phosphatase of bacillus megarterium km by a novel protoplast-bursting factor obtained from bacillus subtilis 202-7. | 1968 | 4969953 | |
| effects of high electric fields on micro-organisms. 3. lysis of erythrocytes and protoplasts. | 1968 | 4969954 | |
| [some investigations of sterols in bacteria]. | 1968 | 4969995 | |
| adsorption of vancomycin by sensitive and resistant organisms. | 1968 | 4972066 | |
| regulation of synthesis of 2,3-dihydroxybenzoic acid in bacillus subtilis by iron and a biological secondary hydroxamate. | 1968 | 4972067 | |
| the isolation and mode of action of a bacterial glucanosyltransferase. | 1968 | 4972097 | |
| mutations and decreases in density of transforming dna produced by derivatives of the carcinogens 2-acetyl-aminofluorene and n-methyl-4-aminoazobenzene. | 1968 | 4972127 | |
| on the inhibition of ribonucleic synthesis in bacillus subtilis cells by steffimycin. | 1968 | 4972144 | |
| protein chain initiation and deformylation in b. subtilis homogenates. | 1968 | 4970729 | |
| [study of bruneomycin formed by act. albus var. bruneomycini and its identification with streptonigrin]. | 1968 | 4970063 | |
| lytic factor and competence in bacillus subtilis. | 1968 | 4971328 | |
| streptomycin-like compound enzymically released from a streptomycin-non-producing streptomyces griseus strain. | 1968 | 4971329 | |
| transformation of lysozyme spheroplasts of bacillus subtilis. | 1968 | 4971337 | |
| effect of pactamycin on the synthesis of rna and protein and on methylation of rna. | 1968 | 4971340 | |
| biochemical studies of bacterial sporulation and germination. ix. ribonucleic acid and deoxyribonucleic acid polymerases in nuclear fractions of vegetative cells and spores of bacillus megaterium. | 1968 | 4971347 | |
| induction and repression of the histidine-degrading enzymes of bacillus subtilis. | 1968 | 4971350 | |
| [derivatives of dipheoro-acetic acid with antibacterial activity. 3]. | 1968 | 4971381 | |
| effect of ultraviolet irradiation on the mineral uptake and osmotic barrier of certain bacteria. | 1968 | 4971383 | |
| chemical analysis of dna alterations. 3. isolation and characterization of adenine oxidation products obtained from oligo- and monodeoxyadenylic acids treated with hydroxyl radicals. | 1968 | 4971400 | |
| selective inhibition of extracellular enzyme synthesis by removal of cell wall from bacillus subtilis. | 1968 | 4971402 | |
| ultraviolet resistance of dna in spore spheroplasts of bacillus subtilis as measured by the transforming activity. | 1968 | 4971403 | |
| the effect of antibiotics on the results of the guthrie test given to phenylketonuric patients. | 1968 | 4971439 | |
| rhodotorulic acid, a diketopiperazine dihydroxamic acid with growth-factor activity. i. isolation and characterization. | 1968 | 4971459 | |
| [study on the occurrence of secondary bacterial infections in swine affected with hog cholera with special reference to enterobacteriaceae]. | 1968 | 4971489 | |
| a new antibacterial agent produced by streptomyces sp. ac6-569. | 1968 | 4971618 | |
| [on the washing of hands in a pediatric ward. on the advantage of combining an organic mercurial disinfectant with a hexachlorophene]. | 1968 | 4971633 | |
| effects of bacillus subtilis protease, type 8 (subtilopeptidase a) on isolated adipose cells. fructose utilization and its inhibition by avenaciolide, piericidin a and puromycin. | 1968 | 4971641 | |
| phenolic acids and iron transport in bacillus subtilis. | 1968 | 4971642 | |
| mutagenesis by acridine yellow in bacillus subtilis. | 1968 | 4971657 | |
| biochemical studies of bacterial sporulation and germination. 8. patterns of enzyme development during growth and sporulation of baccillus subtilis. | 1968 | 4971658 | |
| biochemical studies of bacterial sporulation and germination. vi. origin of spore core and coat proteins. | 1968 | 4971698 | |
| biochemical studies of bacterial sporulation and germaination. vii. protein turnover during sporulation of bacillus subtilis. | 1968 | 4971699 | |
| evaluation of laminar flow microbiological safety cabinets. | the microbiological control efficiency of two class 100 laminar down-flow hoods was determined by using aerosols of bacillus subtilis var. niger spores. the first unit challenged utilized a slanted eyelid to partially enclose the front work opening. this hood showed nearly perfect control of ambient organisms in the work area. it also gave a 10(6) or greater drop in the number of organisms passing out of the exhaust system. however, when the interior work area of the hood was challenged, signifi ... | 1968 | 4971719 |
| a new assay for phage hydroxymethylases and its use in bacillus subtilis transfection. | 1968 | 4971740 | |
| use of b. subtilis neutral proteinase in blood group serology. | 1968 | 4971759 | |
| the conformation of the 50s ribosomal subunit of bacillus subtilis. | 1968 | 4971841 | |
| curing of a sporulation mutant and antibiotic activity of bacillus subtilis. | sporulation mutants of bacillus subtilis, blocked either in the citric acid cycle or in another pathway necessary for uracil incorporation during the developmental period, were tested for their sporulation response to different carbon sources. all of the citric acid cycle mutants and all but one of the other mutants failed to respond. the one phenotypically curable mutant, 60764, responded to most metabolizable carboxylic acids, such as acetate and fatty acids, and to some other carbon sources. ... | 1968 | 4971886 |
| characterization of mutants with single and multiple defects in the tryptophan biosynthetic pathway in bacillus subtilis. | sixty-five tryptophan auxotrophs which map in a cluster on the genome of bacillus subtilis were characterized on the basis of (i) growth response, (ii) accumulation of intermediate compounds, and (iii) determination of enzymatic defects. they could be placed into six phenotypic classes. certain of the mutants exhibited pleiotropic effects on more than one enzymatic activity in a manner different from those effects reported for the tryptophan pathway in other organisms. invariably, mutations in t ... | 1968 | 4971887 |
| parallel between ultraviolet light and 4-nitroquinoline-1-oxide sensitivity in bacillus subtilis. | 1968 | 4971891 | |
| active sites in the wash. | 1968 | 4971956 | |
| studies on the in vitro synthesis of transforming dna. | 1968 | 4972012 | |
| correlation of the sulfhydryl group with the essential calcium in bacillus subtilis saccharifying alpha-amylase. | 1968 | 4970390 | |
| new basic water-soluble antibiotics bd-12 and by-81. i. taxonomy of the producing organisms and antibiotic production. | 1968 | 4970417 | |
| immunofluorescent f-p ratios of some b. subtilis conjugates for use with microporous filters. | 1968 | 4970437 | |
| proteolytic activity on an insoluble protein piled up by an asporogenic mutant of bacillus subtilis. | 1968 | 4970443 | |
| a spectrophotometric assay for neutral protease. | 1968 | 4970444 | |
| the action of the bacillus subtilis neutral protease on s-beta-aminoethylcysteinyl ferredoxin from clostridium pasteurianum. | 1968 | 4970480 | |
| the formation of a vasopressor polypeptide by subtilisin carlsberg (subtilisin), a proteolytic enzyme of bacillus subtilis. | 1968 | 4970519 | |
| effect of azalomycin f on bacteria. | 1968 | 4970571 | |
| studies on the action of o-carbamyl-d-serine in bacillus subtilis. | 1968 | 4970599 | |
| single strand interruptions in pbs 1 bacteriophage dna molecule. | 1968 | 4970601 | |
| a comparison of the segregation of chromosomes within microcolonies developing from single bacillus subtilis and bacillus megaterium spores. | 1968 | 4970602 | |
| ribosome formation and structure. | 1968 | 4970633 | |
| ratio of teichoic acid and peptidoglycan in cell walls of bacillus subtilis following spire germination and during vegetative growth. | cell walls were isolated from cells of bacillus subtilis strain marburg during synchronous outgrowth of spores, during the two synchronous cell divisions which followed, and at various times during exponential and early stationary growth. the amounts of teichoic acid and peptidoglycan components were determined in each cell wall preparation. the peptidoglycan is composed of hexosamine, alanine, diaminopimelic acid, and glutamic acid. the ratio of these was relatively constant in the cell walls a ... | 1968 | 4970648 |
| characteristics of secretion of penicillinase, alkaline phosphatase, and nuclease by bacillus species. | the distribution of alkaline phosphatase and nuclease activity between cells and medium was examined in one strain of bacillus licheniformis and four strains of b. subtilis. over 95% of both activities was found in the medium of the b. licheniformis culture, but in the b. subtilis cultures the amount of enzyme activity found in the medium varied with the strain and the enzyme considered. b. licheniformis 749 and its penicillinase magnoconstitutive mutant 749/c were grown in continuous culture wi ... | 1968 | 4970649 |
| properties of 5-fluorouracil-containing ribonucleic acid and ribosomes from bacillus subtilis. | growth of a strain of bacillus subtilis that requires uracil, thymine, adenine, and tryptophan in the presence of 5-fluorouracil (fu) results in the synthesis of ribonucleic acid (rna) and ribosomes in which 55 to 65% of the rna uracil has been replaced by the fluorine derivative. examination of analogue-containing ribosomes by sucrose density gradient centrifugation and thermal denaturation studies suggests that, as far as the size, shape, and packing structure are concerned, extensive fu subst ... | 1968 | 4970652 |
| effect of 5-fluorouracil on the growth and morphology of a polyauxotrophic strain of bacillus subtilis. | 1968 | 4970653 | |
| a new antifungal antibiotic from aspergillus versicolor. | 1968 | 4970688 | |
| [natural variability of the producer of amphotericin act. nodosus trejo in relation to antibiotic production]. | 1968 | 4970744 | |
| [determination of biological activity of polysynthetic penicillins by the agar diffusion method]. | 1968 | 4970746 | |
| detection of fusaric acid in the mycelium and conidia of fusarium oxysporum f. vasinfectum. | 1968 | 4970752 | |
| dry heat or gaseous chemical resistance of bacillus subtilis var. niger spores included within water-soluble crystals. | inclusion of spores of bacillus subtilis var. niger in water-soluble crystals increased the resistance of the spores to dry heat and to a gaseous mixture of methyl bromide and ethylene oxide. resistance of spores in glycine crystals to dry heat at 125 c was increased 5 to 24 times compared to unprotected spores. there appeared to be a positive correlation between the size of the crystal and the degree of resistance. the resistance to dry heat of spores included in sodium chloride crystals was ab ... | 1968 | 4970891 |
| novel multi-slit large-volume air sampler. | scientific investigators who are interested in the various facets of airborne transmission of disease in research laboratories and hospitals need a simple, continuous, high-volume sampling device that will recover a high percentage of viable microorganisms from the atmosphere. such a device must sample a large quantity of air. it should effect direct transfer of the air into an all-purpose liquid medium in order to collect bacteria, viruses, rickettsia, and fungi, and it should be easy to use. a ... | 1968 | 4970892 |
| effect of cell moisture on the thermal inactivation rate of bacterial spores. | thermal inactivation rates were determined for two strains of bacillus subtilis var. niger spores after equilibration to various relative humidity (rh) levels. in these tests, small thin stainless-steel squares were each inoculated with a drop of spore suspension and equilibrated to 11, 33, or 85% rh. following equilibration, the squares were placed on a hot plate preheated to 108, 125, 136, 164, or 192 c for various exposure times and then assayed for surviving organisms. the results revealed t ... | 1968 | 4970894 |
| the sterilization of the respiratory circuits of automatic ventilators using formaldehyde vapour. | 1968 | 4970963 | |
| screening tests for phenylketonuria. | 1968 | 4971102 | |
| present status of different mass screening procedures for phenylketonuria. medical research council working party on phenylketonuria. | the phenistix screening test for phenylketonuria in newborn infants, when used routinely at the recommended age of 4 to 6 weeks, passes as normal a substantial proportion-perhaps between a quarter and a half-of children with the disease, who are then diagnosed only after brain damage has occurred. screening procedures based on three other tests-namely, the paper chromatography test for o-hydroxyphenylacetic acid in urine, the guthrie test for phenylalanine in blood, and a modification of the gut ... | 1968 | 4971103 |
| sedimentation of high molecular weight dna released from protoplasts of bacillus subtilis. | 1968 | 4971120 | |
| the cell wall of bacillus subtilis during synchronous growth. | 1968 | 4971160 | |
| temperature sensitive mutants of bacillus subtilis defective in dna synthesis. | 1968 | 4971164 | |
| [studies on a somatic antigen isolated from a strain of b. subtilis]. | 1968 | 4970313 | |
| [studies on the anti-inflammatory property of a somatic fraction of bacillus subtilis]. | 1968 | 4970314 | |
| observations on the possible occurrence of transferase activity in alpha-amylase preparations. | 1968 | 4970347 |