Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| chromogenic bacteria related to bacterium globiforme. | 1948 | 18909087 | |
| chromogenic bacteria related to bacterium globiforme. | 1948 | 16561494 | |
| growth interactions of arthrobacter globiformis and pseudomonas sp. in relation to the rhizosphere effect. | 1961 | 13878001 | |
| on the biotin requirement of arthrobacter globiformis. | 1962 | 13878002 | |
| production of a gibberellin-like substance by arthrobacter globiformis. | 1962 | 14031348 | |
| glutamic acid production by arthrobacter globiformis. | 1963 | 13996592 | |
| morphological aberration of arthrobacter globiformis cells due to biotin deficiency. | chan, e. c. s. (university of new brunswick, fredericton, new brunswick, canada). morphological aberration of arthrobacter globiformis cells due to biotin deficiency. j. bacteriol. 87:641-651. 1964.-morphological aberration of arthrobacter globiformis strain 425 was shown to occur during growth in a chemically defined medium without added biotin. such aberrant cells could revert back to normal coccoid forms upon inoculation into fresh medium supplemented with the vitamin. this abnormal cellular ... | 1964 | 14127583 |
| branching enzyme of arthrobacter globiformis. | 1964 | 14171890 | |
| [effect of the oxidation-reduction potential on the transformation of hydrocortisone by mycobacterium globiforme 193 cultures]. | 1965 | 14286244 | |
| studies of the lipids of arthrobacter globiformis 616. i. the fatty acid composition. | 1965 | 14332529 | |
| numerical taxonomy of certain coryneform bacteria. | da silva, g. a. nigel (iowa state university, ames), and john g. holt. numerical taxonomy of certain coryneform bacteria. j. bacteriol. 90:921-927. 1965-an electronic computer was used to sort 32 strains of coryneforms into groups with the tree-sort program. the similarity values obtained in this procedure were then used to construct a dendrogram depicting the phenetic resemblance among the taxa. the results indicated that all the phytopathogens studied were sufficiently distinct from the type s ... | 1965 | 4954898 |
| [dehydration and reduction of the a delta 4-3-ketosteroid ring by acellular preparations from mycobacterium globiforme]. | 1965 | 5872371 | |
| [dissociation of mycobacterium globiforme 193 and its capacity to dehydrate steroids]. | 1965 | 5887022 | |
| [bacteriophage of a culture of steroid dehydrating mycobacterium globiforme 193]. | 1966 | 5979913 | |
| porphyrin production by arthrobacter globiformis. | 1968 | 5681520 | |
| the oxidation of aminoacetone by a species of arthrobacter. | 1. a micro-organism similar to arthrobacter globiformis has been isolated from sewage by elective growth on a medium containing l-threonine as sole source of carbon and nitrogen. 2. washed cell suspensions of the organism catalyse the complete disappearance of aminoacetone from the medium and its almost complete oxidation. 3. in the presence of iodoacetate, aminoacetone disappearance is accompanied by the accumulation of methylglyoxal, about 70% of the aminoacetone removed being accounted for in ... | 1968 | 5721463 |
| [dissociation of mycobacterium globiforme 193 into s- and r-forms]. | 1968 | 5733249 | |
| reactions of glycine synthesis and glycine cleavage catalyzed by extracts of arthrobacter globiformis grown on glycine. | 1969 | 4389630 | |
| [purification and some properties of delta-steroid reductase from mycobacterium globiforme 193]. | 1970 | 4995892 | |
| porphyrin formation by arthrobacter globiformis. 1. the effects of trace elements and aeration on coproporphyrin accumulation. | 1970 | 5310897 | |
| [effect of cortisone, prednisone and 20-dihydroprednisone on the growth of mycobacterium globiforme 193]. | 1970 | 5497272 | |
| biotin deficiency in arthrobacter globiformis: fine structure and effect of physical stress. | 1970 | 4192256 | |
| iron deficiency and porphyrin formation by arthrobacter globiformis. | 1970 | 4922752 | |
| [regularities of induced synthesis of delta 1-steroid dehydrogenase by mycobacterium globiforme 193]. | 1971 | 5553397 | |
| limonoate dehydrogenase from arthrobacter globiformis. | 1972 | 5057436 | |
| the effect of linuron and chlorpropham on glutamic acid production by arthrobacter globiformis. | 1973 | 4755157 | |
| [regulation of enzyme biosynthesis in a culture of mycobacterium globiforme, strain 193, which transforms steroids]. | 1973 | 4790716 | |
| biotin deficiency in arthrobactger globiformis: comparative cell ultrastructure and nonreplacement of the vitamin by structurally unrelated compounds. | the development of aberrant cell forms of arthrobacter globiformis 425 due to biotin deficiency was followed by electron microscopy of ultrathin sections. upon comparison with normal cell growth, aberrant cells developed in the early logarithmic growth phase. several membrane-bound bodies were embedded in a thick matrix, showing that cell division was impaired. mesosomes and cytoplasmic membranes were still present in the abnormal cell although the normal cell wall was absent. this condition per ... | 1973 | 4120069 |
| gram characteristics and wall ultrastructure of arthrobacter crystallopoietes during coccus-rod morphogenesis. | arthrobacter crystallopoietes growing exponentially as cocci were changed to rods by adding succinate to the medium. cells were sampled before, during, and after this transition for gram-staining and ultrastructural studies. cells were gram stained by the standardized method of bartholomew, and all samples were fixed and prepared for thin sectioning in an identical manner. cocci were gram positive, and thin sections demonstrated a gram-positive type of cell wall having an average thickness of 31 ... | 1973 | 4121451 |
| isolation and characterization of a bacteriophage of arthrobacter globiformis. | a bacteriophage which reproduces on arthrobacter globiformis atcc 8010 was isolated from soil. this bacteriophage, designated phiag8010, propagates either in soft agar or broth cultures of the host. because of a slow adsorption rate, neither the latent period nor burst size was determined. the mature virion belongs to bradley's group b and exhibits a hexagonal head measuring 69 nm (length) by 60 nm (width) attached to a sheathless tail 120 nm long. the buoyant density of the mature virion is 1.5 ... | 1973 | 4128824 |
| the negative staining of "difficult" bacteria like arthrobacter globiformis for electron microscopy. | 1974 | 4134832 | |
| [transformation of steroids by cells and a cell-free preparation of mycobacterium globiforme 193 cultures enclosed in polyacrylamide gel]. | 1974 | 4837393 | |
| mechanism of the reversible glycine cleavage reaction in arthrobacter globiformis. i. purification and function of protein components required for the reaction. | 1974 | 4414614 | |
| [regulation of the activity of the enzymes 3-ketosteroid-delta 1-dehydrogenase and 20 beta-hydroxysteroid-dehydrogenase in mycobacterium globiforme cultures]. | 1974 | 4453207 | |
| [dehydration of cortisone acetate to prednisone acetate by a culture of mycobacterium globiforme 193]. | 1974 | 4453539 | |
| arthrobacter globiformis and its bacteriophage in soil. | bacteriophages in soil for arthrobacter globiformis were rarely detected unless the soil was nutritionally amended and incubated. in amended soil, phage were continuously produced for at least 48 h, and this did not require the addition of host cells. rod and spheroid stage host cells added to the amended soil encountered indigenous bacteriophage, but added phage did not encounter sensitive indigenous host cells for some time, if at all. the indigenous phage in nonincubated soil seemed to be pre ... | 1974 | 16350007 |
| [distribution of pyrimidine blocks in the dna of brevibacterium linens, arthrobacter globiformis, nocardia corallina and nocardia rubra]. | the nucleotide composition and the frequency of pyrimidine blocks were studied in dna of the following bacteria: brevibacterium linens (weignamm, 1910) breed, 1953; arthrobacter globiformis (conn, 1928) conn et dimmick, 1947; nocardia corallina (bergey et al., 1923) waksman et henrici, 1948; nocardia rubra (krassilnikov, 1949) waksman et henrici, 1948. these organisms are classed by some microbiologists as mycobacteria (the mycobacteriaceae family) while other authors regard them as representati ... | 1975 | 241002 |
| [crystal-transformation of hydrocortisone effected by a culture of mycobacterium globiforme 193]. | 1975 | 1117087 | |
| [regulation of 1-dehydrogenation and 20 beta-reduction of ketosteroids by microorganisms]. | regulation of two microbiological processes--1-dehydrogenation and 20 beta-reduction of ketosteroids--was studied using several exogeneous quinones which (a) stimulated 1-dehydrogenation and (b) inhibited the accompanying reaction, the reduction of 20-ketogroup of the steroid molecule. the least active compounds were benzoquinones. the best regulators are 1,4-naphthoquinone, 1,2-naphthoquinone, and 7-methoxy-1,2-naphthoquinone. possible mechanism of the action of naphthoquinones on mycobacterium ... | 1975 | 1214603 |
| [facultative methylotroph belonging to the genus arthrobacter]. | a bacterial strain has been isolated and identified, on the basis of its morphological and physiologo-biochemical properties, as arthrobacter globiformis. the bacterium is a facultative methylotroph and grows not only on media with various organic compounds but also in the presence of methylated amines as a sole source of carbon, nitrogen, and energy. other c1-substrates were not utilized. | 1975 | 1214618 |
| mechanism of reversible glycine cleavage reaction in arthrobacter globiformis. function of lipoic acid in the cleavage and synthesis of blycine. | 1976 | 1259444 | |
| colonization of soil by arthrobacter and pseudomonas under varying conditions of water and nutrient availability as studied by plate counts and transmission electron microscopy. | arthrobacter globiformis and a pseudomonas soil isolate were incubated separately and in combination in soil that had been presterilized by autoclaving. growth and other responses of the cells in situ in this soil were monitored by plate counts and transmission electron microscopy examinations of cell sections. during the soil incubations, some of the samples were first allowed to dry and then were remoistened with water or with a dilute or a concentrated nutrient solution. based on plate counts ... | 1976 | 1267449 |
| effect of dicumarol on the growth of some soil microorganisms. | the effect of dicumarol on growth of selected soil bacteria: azotobacter chroococcum, arthrobacter globiformis, a. citreus and bacillus megaterium was studied. the following minimum concentrations were inhibitory in vitro: arthrobacter citreus--20 mug/ml., bacillus megaterium--40 mug/ml., azotobacter chroococcum--40 mug/ml. arthrobacter globiformis--70 mug/ml. cells of all microorganisms studied grown in the presence of dicumarol developed aberrant morphological forms. | 1976 | 59533 |
| [oxidation and assimilation pathways of methylated amines in arthrobacter globiformis]. | the oxidation by arthrobacter globiformis b-175 of tertiary, secondary, and primary amines is catalyzed by specific induced enzymes. trimethylamine is oxidized to dimethylamine via trimethylamine n-oxide by monooxygenase and demethylase. dimethylamine is converted to methylamine by another monooxygenase. methylamine is oxidized to ammonia and formaldehyde by aminoxidase. formaldehyde is assimilated via ribulose monophosphate cycle, which is confirmed by the presence of hexose-phosphate synthase ... | 1976 | 933867 |
| degradation of alpha-linked d-gluco-oligosaccharides and dextrans by an isomalto-dextranase preparation from arthrobacter globiformis t6. | 1976 | 938503 | |
| [microbiologic transformation of microcrystalline cortisone acetate into prednisone]. | the process of transformation of microcystalline acetate cortisone by two mycobacteria (mycobacterium album and mycobacterium globiforme) has been studied. optimal conditions for the process have been established: amount of biomass of both cultures, concentration of the initial substrate and required concentration of the surfactant--antifoamsilane. the anzymic activity of the cultures reaches maximum if the following three requirements are met: utilization of cells separated from the medium, sub ... | 1976 | 981200 |
| [degradation of (-)-ephedrine by arthrobacter globiformis (author's transl)]. | a bacterium which grows on and completely degrades ephedrine as the only source of carbon was isolated from soil. this bacterium was identified as arthrobacter globiformis. from the culture medium the following metabolites were isolated: 1-hydroxy-1-phenyl acetone, benzoic acid, pyrocatechol, cis-cis-muconic acid and methylamine. the mechanism of metabolism is discussed and compared with that in mammals. | 1976 | 998048 |
| purification and characterization of pyruvate carboxylase from arthrobacter globiformis. | 1977 | 851353 | |
| properties of the hexulose phosphate synthase of methylotrophic yeasts and bacteria. | properties of hexulose phosphate synthase (hps) were studied in extracts of the methanol assimilating yeast candida methylica and the bacterium arthrobacter globiformis b-175 assimilating methylated amines. hps is an inducible enzyme which is localized in the soluble fraction of the cells. the effect of the ph of the reaction mixture, temperature, metal ions, and the concentration of substrates on the activity of hps was studied. properties of the enzyme were different in the yeast and the bacte ... | 1977 | 16201 |
| oxidative pathway of choline to betaine in the soluble fraction prepared from arthrobacter globiformis. | one strain of bacteria which showed high h2o2-generating activity was isolated from soil and characterized as arthrobacter globiformis based on its morphological, nutritional, and physiological characteristics. the activities of h2o2 generation, nad reduction and oxygen consumption in the bacterial cells were examined using choline, betaine aldehyde or betaine as substrate. choline was oxidized to betaine aldehyde under aerobic conditions in a reaction coupled with h2o2 generation and oxygen con ... | 1977 | 197073 |
| l-serine dehydratase from arthrobacter globiformis. | 1. l-serine dehydratase (ec 4.2.1.13) was purified 970-fold from glycine-grown arthrobacter globiformis to a final specific activity of 660micronmol of pyruvate formed/min per mg of protein. 2. the enzyme is specific for l-serine; d-serine, l-threonine and l-cysteine are not attacked. 3. the time-course of pyruvate formation by the purified enzyme, in common with enzyme in crude extracts and throughout the purification, is non-linear. the reaction rate increases progressively for several minutes ... | 1977 | 322657 |
| studies of the glycine cleavage enzyme system in brain from infants with glycine encephalopathy. | glycine content and enzyme activity of the glycine cleavage system were compared in autopsied brain from five infants dying with glycine encephalopathy and four control infants, including two with other types of hyperglycinemia. glycine content was elevated 2- to 8-fold and glycine cleavage enzyme activity was undetectable in the brains of the glycine encephalopathy patients. glycine content and enzyme activity were normal in the brains of the control patients, including one with ketotic hypergl ... | 1977 | 593763 |
| purification and characterization of choline oxidase from arthrobacter globiformis. | choline oxidase was purified from the cells of arthrobacter globiformis by fractionations with acetone and ammonium sulfate, and column chromatographies on deae-cellulose and on sephadex g-200. the purified enzyme preparation appeared homogeneous on disc gel electrophoresis. the enzyme was a flavoprotein having a molecular weight of approx. 83,000 (gel filtration) or approx. 71,000 (sodium dodecyl sulfate--polyacrylamide disc gel electrophoresis) and an isoelectric point (pi) around ph 4.5. iden ... | 1977 | 599154 |
| enzymatic determination of phospholipase d activity with choline oxidase. | a new enzymatic method was developed for the assay of phospholipase d [phosphatidylcholine phosphatidohydrolase ec 3.1.4.4] from cabbage leaves using choline oxidase from arthrobacter globiformis cells. the method was based on the estimation of choline by the following series of enzymatic reactions after ending the phospholipase d reaction: choline + 202 + h2o choline oxidase betaine + 2h2o2 2h2o2 + phenol + 4-aminoantipyrine peroxidase quinoneimine dye + 4h2o the amount of choline was proportio ... | 1978 | 641031 |
| morphogenetic expression of arthrobacter globiformis 425 in continuous culture with carbon or biotin limitation. | when deprived of biotin, arthrobacter globiformis 425 exhibits abnormal morphology (large, branched forms of variable size) and a retardation of its normal growth rate. in chemostat cultures, when cells were grown under glucose limitation, the morphology was normal (coccoids or rods) at specific growth rates between 0.05 and 0.125 h-1 (doubling times between 14 and 5.5 h, respectively) at 25 degrees c. the coccoid-to-rod morphogenesis occurs at a specific growth rate of 0.11 h-1. at the same spe ... | 1978 | 754873 |
| microbiological 1,2-dehydration of microcrystalline epihydrocortisone and its 21-acetate. | a method is described for obtaining epiprednisolone and its 21-acetate by means of microbiological 1,2-dehydration by a culture of mycobacterium globiforme 193. the substrate, epihydrocortisone or its 21-acetate, is added in the form of a microcrystalline suspension at a concentration of 25-100 g/liter medium. | 1978 | 756290 |
| periodic cyclic amp uptake by synchronously grown cells of nocardia restricta and arthrobacter globiformis. | 1978 | 212312 | |
| [oxido-reductive reactions in the transformation of hydrocortisone and prednisolone by adsorbed cells of mycobacterium globiforme, strain 193]. | 1979 | 42048 | |
| isoprenoid quinones in the classification of coryneform and related bacteria. | menaquinones were the only isoprenoid quinones found in 85 of the 95 coryneform bacteria examined. dihydromenaquinones having nine isoprene units were the main components isolated from corynebacterium bovis, from other glutamic acid-producing strains, and from arthrobacter globiformis and related species. dihydromenaquinones with eight isoprene units were found in brevibacterium linens, the remaining corynebacterium species and strains probably belonging to the genus rhodococcus. tetrahydromenaq ... | 1979 | 107269 |
| [pyruvate and phosphoenolpyruvate carboxylase in methylotrophs]. | the activity of pyruvate and phosphoenolpyruvate carboxylases was determined in cell extracts of obligate and facultative methylotrophs which metabolized monocarbon reduced compounds via different pathways. phosphoenolpyruvate carboxylase was found to be the only enzyme responsible for the high level of co2 fixation by methylotrophs with the serine pathway (methylosinus trichosporium, hyphomicrobium vulgare, pseudomonas methylica). methylotrophs with the hexulose phosphate pathway mehylobacter c ... | 1979 | 108526 |
| comparison of three procedures for isolating dna from bacteria. | three methods employing chloroform-isoamyl alcohol (ci), phenol, or enzymes, were evaluated for isolating dna from escherichia coli, bacillus subtilis, and arthrobacter globiformis. for the amounts of reagents employed at optimum conditions in the ci and phenol procedures, 0.4-0.9 mg of dna/g wet weight of cells was isolated. using the enzymatic procedure, approximately twice as much dna was isolated. dna isolated by the ci procedure contained 0.03-0.09% protein and 0.08-0.12% rna. dna isolated ... | 1979 | 119130 |
| enzymic assay for lecithin in amniotic fluid. | we describe an enzymic method for determining lecithin in amniotic fluid. phospholipase d from savoy cabbage is used to liberate choline from lecithin, and the liberated choline is oxidized to betaine and hydrogen peroxide by choline oxidase from arthrobacter globiformis. the hydrogen peroxide forms a colored complex with phenol and 4-aminoantipyrene in the presence of horseradish peroxidase, and this color is measured spectrophotometrically. the method is relatively easy, precise, and accurate, ... | 1979 | 761344 |
| [microbiologic studies of a spodumene deposit]. | a wide spectrum of heterotrophic and autotrophic microorganisms was detected in the zones of decomposition of spodumene and bed rocks, pegmatites and shales, in the spodumene deposit. the following aerobic microorganisms which did not from spores predominated in the deposit: arthrobacter globiformis, a. pascens, a. simplex, nocardia globerula, pseudomonas fluorescens, ps. putida, ps. testosteronii. the following specific bacterial groups were found: thionic, sulfate reducing, and nitrifying bact ... | 1979 | 470634 |
| [effect of several compounds on the process of reduction of the 20-keto group of corticosteroids by a culture of mycobacterium globiforme]. | the effect of certain metabolites produced in the metabolism of carbohydrates, proteins and fats on the reduction of the 20-keto group in a number of corticosteroids (prednisone, prenisolone, 6 alpha-methylprednisolone) was studied with the culture of mycobacterium globiforme. the metabolites and inhibitors of the respiration chain were found to stimulate the 20 beta-reduction of a steroid molecule. the inhibitor of oxidative phosphorylation, 2,4-dinitrophenol, inhibited the reduction of the 20- ... | 1979 | 502908 |
| nature of transformation of hydrocortisone by cells incorporated into polyacrylamide gel. | the ability of mycobacterium globiforme 193 cells immobilized in polyacrylamide gel (paag) to transform soluble and microcrystalline hydrocortisone was investigated under conditions to periodic aeration. it was found that the specific 3-oxosteroid-delta'-dehydrogenase activity of immobilized cells hardly differs from that of free cells and averages 0.06 mumole/mg cells . min; the quantitative and qualitative composition of the transformation products formed by free and immobilized cells was iden ... | 1979 | 297469 |
| attachment to autoclaved soil of bacterial cells from pure cultures of soil isolates. | pure cultures of arthrobacter globiformis and four fresh soil isolates were incubated individually in autoclaved soil, in both the presence and absence of glucose. these bacteria grew in the soil and, except for a. globiformis, eventually attached firmly to the soil solids. firmly attached cells were defined as those which could not be separated from the soil solids by blending combined with a series of low-speed centrifugal washings. the attachment attained by the soil isolates appeared to dupl ... | 1979 | 16345373 |
| myceloid growth of arthrobacter globiformis and other arthrobacter species. | transitory myceloid growth occurs in certain complex media with arthrobacter globiformis strain atcc 8010. this type of growth, however, was not observed in a medium which contained an array of metal ions but did not contain agents able to complex metal ions. addition of metal-complexing agents to this medium caused an interruption in the life cycle of strain 8010 so that growth occurred only as the myceloid form. it appeared that manganese was the critical metal that was removed by the metal-co ... | 1980 | 6254945 |
| a critical analysis of kinetic data of 3-hexulosephosphate synthases. michaelis-menten or complex characteristics. | investigations of the 3-hexulosephosphate synthase (hps) from different methylotrophic bacteria have revealed apparent discrepancies in kinetic behaviour. in all methanol-utilizing species investigated by us the kinetic characteristics showed intermediary plateau regions. therefore, this behaviour is assumed to be a general feature of the hps from all non-methane-utilizing methylotrophic bacteria. however, this assumption is in contrast to the results of other authors. both for methylomonas m15 ... | 1980 | 6775423 |
| [ratio of coryneform bacteria to the organic substance concentration]. | the effect of various organic substances and their concentrations on growth was studied with 10 strains of coryneform bacteria belonging to different taxonomic groups. the dynamics of the cultural growth depended on the nature of a substrate, glucose or acetate. arthrobacter globiformis 281, a. variabilis 289, nocardia erythropolis 236, n. globerula 502, n. minima 311 and n. rhodochrous 435 had a higher growth rate on acetate than on glucose. a. pascens 284, brevibacterium ammoniagenes 334, cory ... | 1980 | 6782432 |
| degradation of (-)-ephedrine by pseudomonas putida. detection of (-)-ephedrine: nad+-oxidoreductase from arthrobacter globiformis. | a bacterium utilizing the alkaloid (-)-ephedrine as its sole source of carbon was isolated by an enrichment-culture technique from soil supplemented with 4-benzoyl-1,3-oxazolidinon-(2). the bacterium was indentified as pseudomonas putida by morphological and physiological studies. the following metabolites were isolated from the culture fluid: methylamine, formaldehyde, methylbenzoylcarbinol (2-hydroxy-1-oxo-1 phenylpropane), benzoid acid, pyrocatechol and cis, cis-muconic acid. a pathway for th ... | 1980 | 7405363 |
| scope and mechanism of carbohydrase action. stereocomplementary hydrolytic and glucosyl-transferring actions of glucoamylase and glucodextranase with alpha- and beta-d-glucosyl fluoride. | rhizopus niveus glucoamylase and arthrobacter globiformis glucodextranase, which catalyze the hydrolysis of starch and dextrans, respectively, to form d-glucose of inverted (beta) configuration, were found to convert both alpha- and beta-d-glucosyl fluoride to beta-d-glucose and hydrogen fluoride. each enzyme directly hydrolyzes alpha-d-glucosyl fluoride but utilizes th beta-anomer in reactions that require 2 molecules of substrate and yield glucosyl transfer products which are then rapidly hydr ... | 1981 | 6787047 |
| [utilization of 4-chlorobenzoic acid by arthrobacter globiformis]. | a strain of arthrobacter globiformis utilizing 4-chlorobenzoic acid as a sole source of carbon and energy was isolated by the method of enrichment cultures from vegetable garden soil near moscow. the yield of released chlorine upon the utilization of 4-chlorobenzoic acid exceeded 96% of the theoretically possible one. biotin stimulated noticeably the utilization of the acid. the concentration of 4-chlorobenzoic acid that apparently did not inhibit the growth of the isolated organism was within t ... | 1981 | 7219218 |
| [3-oxosteroid-delta 1-dehydrogenase localization in mycobacterium rubrum and arthobacter globiformis cells]. | osmotically susceptible forms were obtained from mycobacterium rubrum and arthrobacter globiformis (mycobacterium globiforme) cells. the activity of 3-oxosteroid-delta 1-dehydrogenase was comparatively estimated in subcellular fractions after differential centrifugation of cell homogenates prepared either mechanically or by lysis of osmotically susceptible forms. the results indicate that the enzyme is located in the cells of the above microorganisms in both the free state (in the fraction of so ... | 1981 | 7311905 |
| the influence of polymerization conditions on the 3-ketosteroid delta 1-dehydrogenase activity of mycobacterium globiforme cells included in a gel. | the influence of the conditions of polymerization and the structure of the polyacrylamide gel (pag) on the 3-ketosteroid delta 1-dehydrogenase activity of a culture of m. globiforme 193 was studied. a clear dependence of the enzymatic activity on the temperature regime and the duration of the polymerization process was established. the reason for the fall in activity with a rise in temperature and an increase in the duration of the polymerization process is the diminution of the quantity of viab ... | 1981 | 7332770 |
| factors determining steric course of enzymic glycosylation reactions: glycosyl transfer products formed from 2,6-anhydro-1-deoxy-d-gluco-hept-1-enitol by alpha-glucosidases and an inverting exo-alpha-glucanase. | glycosyl transfer products were formed from 2,6-anhydro-1-deoxy-d-gluco-hept-1-enitol (heptenitol) by purified alpha-glucosidases from candida tropicalis and rice and by an inverting exo-alpha-glucanase (glucodextranase) from arthrobacter globiformis. the products were structurally defined through 1h and 13c nmr (nuclear magnetic resonance) spectra of their crystalline per-o-acetates in comparison with those of authentic methyl 1-deoxy-alpha- and methyl 1-deoxy-beta-d-gluco-heptuloside. 1-deoxy- ... | 1982 | 6758847 |
| oxygen tolerance of strictly aerobic hydrogen-oxidizing bacteria. | growth of various bacteria, especially aerobic hydrogen-oxidizing bacteria, in the presence of 2 to 100% (v/v) oxygen in the gas atmosphere was evaluated. the bacterial strains included alcaligenes eutrophus, a. paradoxus, aquaspirillum autotrophicum, arthrobacter spec. strain 11 x, escherichia coli, arthrobacter globiformis, nocardia opaca, n. autotrophica, paracoccus denitrificans, pseudomonas facilis, p. putida, and xanthobacter autotrophicus. under heterotrophic conditions with fructose or g ... | 1982 | 7049081 |
| [arthrobacter globiformis - a new yeast-lysing bacterium]. | a bacterium capable to lyse viable yeast cells was isolated from compost enriched with baker's yeast cells and was identified as arthrobacter globiformis. the yeast lytic enzyme complex produced by shaking culture was precipitated with ammonium sulfate, dialyzed and lyophilized. the crude residue contained beta-glucanase and alpha-mannanase, yet not chitinase. optimale carbon sources in the culture medium for a high enzyme synthesis were 0.5% beta-glucan for the production of beta-glucanase, res ... | 1982 | 7157841 |
| [coupling between 3-ketosteroid-delta'-dehydrogenase and the respiratory chain in the bacterium arthrobacter globiformis]. | intact bacterial cells and their cytoplasmic membranes obtained by ultrasonic desintegration are able to induce dehydration of hydrocortisone to prednisolone that is coupled with o2 uptake. this reaction is inhibited by cyanide and 2-n-nonyl-4-hydroxyquinoline-n-oxide (hoqno). oxidation of hydrocortisone results in cytochrome reduction both in intact cells and in cytoplasmic membranes. aerobic dehydration of hydrocortisone is linked with transmembrane potential generation. the data obtained sugg ... | 1983 | 6639991 |
| taxonomic studies on arthrobacter nicotianae and related taxa: description of arthrobacter uratoxydans sp. nov. and arthrobacter sulfureus sp. nov. and reclassification of brevibacterium protophormiae as arthrobacter protophormiae comb. nov. | dna homology studies were performed on various strains of arthrobacter and related organisms with peptidoglycans (mureins) of the a3α and a4α variations. homology values above 20% show strains with the a4α variation to form a coherent group, which is here designated as the "nicotianae" group of organisms. members of this group show homology values of lower than 20% with strains of the "globiformis" group (arthrobacter globiformis and relatives), having a a3α peptidoglycan variation. however, the ... | 1983 | 23194805 |
| growth and phosphate uptake of a high phosphate accumulating bacterium, arthrobacter globiformis pab-6 in continuous culture. | a high phosphate accumulating bacterium, arthrobacter globiformis pab-6, was grown in a chemostat under glucose-limitation. two different growth patterns at steady state with various dilution rates were obtained. in one case, cells having a coccus shape tended to washout at a low dilution rate, 0.2 (h(-1)). in another, cells with a rod shape grew faster and gave a good steady-state growth at a dilution rate of 0.4. such a close relationship between growth rate and cell morphology was found both ... | 1983 | 18551481 |
| production of d-tagatose from dulcitol by arthrobacter globiformis. | a process for the bacterial oxidation of dulcitol to d-tagatose has been developed. the strain arthrobacter globiformis st48 used in this fermentation was isolated from soil. the yield of d-tagatose accumulated in the medium from dulcitol was as high as 85%. about 14 g of d-tagatose crystals was isolated from 1 liter of 2% dulcitol medium. | 1984 | 16346663 |
| [growth kinetics of microorganisms with various ecological strategies in a dialysis culture at low specific growth rates]. | a dialysis culture was found to be most suitable for studying the metabolism of microorganisms at a low specific growth rate. the biomass of all microorganisms studied in the dialysis culture increased with time in a linear fashion; hence, the energy spent for growth decreased in proportion to a decrease in the specific growth rate. microorganisms growing in oligotrophous environment (arthrobacter globiformis and lipomyces tetrasporus ) spent much less energy comparing to microorganisms from eut ... | 1984 | 6429490 |
| generic composition and physiological and cultural properties of heterotrophic bacteria isolated from soil, rhizosphere and mycorrhizosphere of pine (pinus silvestris l.). | among the bacteria studied arthrobacter globiformis was predominating in the root zone, while in the non-rhizosphere soil most numerous were bacillus circulans and a. globiformis. ammonifiers were more numerous among the root zone bacteria than among the root free soil organisms. the reverse was noted with bacteria capable of hydrolysing starch, cellulose, pectin and chitin. | 1984 | 6209931 |
| redox reactions in hydrocortisone transformation by arthrobacter globiformis cells. | hydrocortisone and prednisolone transformation by arthrobacter globiformis cells in aerobic and anaerobic conditions was studied. 3-ketosteroid-1-en-dehydrogenase activity was shown to be the major factor regulating the direction of transformation. when it is high (aerobic conditions), the end products of hydrocortisone transformation are prednisolone or its 20 beta-hydroxy derivative. the latter is produced via 1-en-dehydrogenation, which is not a limiting stage of the process. low 3-ketosteroi ... | 1985 | 4046604 |
| regulation of 3-ketosteroid-1-en-dehydrogenase activity of arthrobacter globiformis cells by a respiratory chain. | it has been shown that 3-ketosteroid-1-en-dehydrogenase localized in a cytoplasmic membrane donates reducing equivalents to a respiratory chain directly which passes them over to oxygen. microbial hydrocortisone oxidation is coupled with energy generation in the form of the h+ transmembrane potential. electron transfer via a respiratory chain is the limiting stage in the process of hydrocortisone 1-en-dehydrogenation. | 1985 | 4046608 |
| [the use of bioelectrochemical systems in steroid biosynthesis]. | the feasibility of electrosynthesis involving the use of biocatalysts has been demonstrated in a model reaction of hydrocortisone oxidation to prednisolone catalyzed by arthrobacter globiformis cells. electrochemical regeneration of phenazine methosulfate, an artificial electron acceptor, was performed, using electrodes made of different materials. transformation products were analyzed by high performance liquid chromatography. | 1986 | 3768442 |
| identification of eubacteria isolated from leaf cavities of four species of the n-fixing azolla fern as arthrobacter conn and dimmick. | the nutritional and physiological characteristics of 15 isolates from four species of the azolla fern were determined. although some minor variation existed in levels of urease activity, ability to utilize xylose, and formation of n(2) gas from no(3), all 15 isolates were rather similar and believed to represent a single species. these eubacteria exhibited aminopeptidase activity and became viscous when treated with koh, similar to gram-negative organisms; however, the absence of lipopolysacchar ... | 1986 | 16347144 |
| phylogenetic analysis of the coryneform bacteria by 5s rrna sequences. | nucleotide sequences of 5s rrnas from 11 coryneform bacteria were determined. these were the type strains of corynebacterium glutamicum, corynebacterium xerosis, brevibacterium linens, arthrobacter globiformis, cellulomonas biazotea, aureobacterium testaceum, curtobacterium citreum, pimelobacter simplex, and caseobacter polymorphus and representative strains of "corynebacterium aquaticum" and corynebacterium xerosis. a phylogenetic tree constructed from the sequences of these bacteria and publis ... | 1987 | 3106318 |
| [the structure of extracellular polysaccharide of arthrobacter globiformis]. | an extracellular polysaccharide from arthrobacter globiformis is composed of n-acetyl-d-glucosamine, n-acetyl-d-fucosamine, 2,3-diacetamido-2,3-dideoxy-d-mannuronic acid and o-acetyl groups in the ratio 1:1:2:1. on the basis of solvolysis with anhydrous hydrogen fluoride, which resulted in a tetrasaccharide fragment, and analysis by 1h and 13nmr spectroscopy, it was concluded that the polysaccharide has the following structure: (formula; see text). | 1988 | 3219122 |
| stereochemical studies of d-glucal hydration by alpha-glucosidases and exo-alpha-glucanases: indications of plastic and conserved phases in catalysis by glycosylases. | alpha-glucosidases from aspergillus niger, pig serum, ungerminated rice, buckwheat, and sugar beet seeds (but not from brewers' yeast or honeybee) were found to catalyze the hydration of d-glucal. each reactive alpha-glucosidase, incubated with d-glucal in d2o, was shown to protonate (deuteriate) this prochiral substrate from above its re face, i.e., from a direction opposite that assumed for protonating alpha-d-glucosidic substrates. at the same time, d-glucal hydration catalyzed by three of th ... | 1988 | 3284583 |
| nucleotide sequences of 5s ribosomal rnas of arthrobacter oxydans, arthrobacter polychromogenes, arthrobacter globiformis and 'brevibacterium helvolum'. | 1988 | 2457874 | |
| protozoan response to the addition of bacterial predators and other bacteria to soil. | representatives of several categories of bacteria were added to soil to determine which of them might elicit responses from the soil protozoa. the various categories were nonobligate bacterial predators of bacteria, prey bacteria for these predators, indigenous bacteria that are normally present in high numbers in soil, and non-native bacteria that often find their way in large numbers into soil. the soil was incubated and the responses of the indigenous protozoa were determined by most-probable ... | 1989 | 16347983 |
| kinetic model of hydrocortisone 1-en-dehydrogenation by arthrobacter globiformis. | a kinetic model of the hydrocortisone-to-prednisolone transformation by arthrobacter globiformis is constructed using the experimental data obtained in studies of this process. besides adequately describing experimental data, the model allows one to determine the relation between hydrocortisone oxidation and the level of endogenous substrates in bacterial cells, and the relation between the saturating concentration of hydrocortisone in the enzymic system of bacteria and the content of endogenous ... | 1989 | 18587966 |
| kinetic model for the regulation of redox reaction in steroid transformation by arthrobacter globiformis cells. | a kinetic model of hydrocortisone transformation was developed in studies of the kinetics of biochemical systems. the regulatory bases of the model are the biosynthesis of steroid-transforming enzymes and their activity, the level of endogenous substrates, the respiratory chain activity, and the initial concentrations of reagents. when compared, the experimental data completely coincide with the results of the computer modeling, the coincidence being not only qualitative but also quantitative. i ... | 1989 | 18587967 |
| mechanism of gram variability in select bacteria. | gram stains were performed on strains of actinomyces bovis, actinomyces viscosus, arthrobacter globiformis, bacillus brevis, butyrivibrio fibrisolvens, clostridium tetani, clostridium thermosaccharolyticum, corynebacterium parvum, mycobacterium phlei, and propionibacterium acnes, using a modified gram regimen that allowed the staining process to be observed by electron microscopy (j. a. davies, g. k. anderson, t. j. beveridge, and h. c. clark, j. bacteriol. 156:837-845, 1983). furthermore, since ... | 1990 | 1689718 |
| [quantitative description of microbial growth in a batch culture depending on the physiologic state of inocula]. | the dynamics of biomass production and the respiration rate of five microorganisms grown as batch cultures were studied in detail. cell suspensions with a known physiological state, i.e. chemostat cultures grown at a particular d value, as well as quasi steady-state populations cultivated with slow feeding and long energy-source starvation were used as inocula. the microorganisms were arbitrary subdivided into two groups. the biomass of pseudomonas fluorescens, bacillus subtilis and debaryomyces ... | 1991 | 1770867 |
| l-lysine production by s-2-aminoethyl-l-cysteine-resistant mutants of arthrobacter globiformis. | using mutagenesis with n-methyl-n'-nitro-n-nitrosoguanidine, a number of homoserine auxotrophs have been isolated from a glutamate-producing arthrobacter globiformis excreting l-lysine in good amounts. for further improvement, mutants resistant to the lysine analog s-(2-aminoethyl)-l-cysteine have been isolated from homoserine auxotrophs. for the three potent mutants tested, white's medium was found to be the best. glucose, ammonium nitrate and biotin were found to be optimum at 280 mmol/l, 40 m ... | 1991 | 1841850 |
| isolation method for lysine-excreting mutants of arthrobacter globiformis. | to improve the yield of lysine by the isolate, auxotrophic mutants were isolated. among the mutants, only one auxotrophic mutant required vitamin b12. this mutant produced alpha-alanine. about 200 mutants resistant to the lysine analog s-(2-aminoethyl)-l-cysteine were isolated and some of them produced well above the wild type. | 1991 | 1841851 |
| l-phenylalanine production by double auxotrophic mutants of arthrobacter globiformis. | a number of tryptophan-plus-tyrosine double auxotrophs have been isolated from a glutamate producing arthrobacter globiformis excreting l-phenylalanine by two-step mutagenesis with n-methyl-n'-nitro-n-nitrosoguanidine. for the three potent mutants tested the medium of alföldi was found to be the best. the optimum tryptophan, tyrosine and biotin concentrations for phenylalanine production of these mutants were 0.5 mmol/l, 0.1 mmol/l and 5 micrograms/l, respectively. at these levels strain tt-39 y ... | 1991 | 1841857 |
| [cloning of the arthrobacter globiformis fcba gene for dehalogenase and construction of a hybrid pathway of 4-chlorobenzoic acid degradation in pseudomonas putida]. | the artrobacter globiformis kzt1 fcba gene responsible for dehalogenase (4-chlorobenzoate-4-hydroxylase) activity was cloned in escherichia coli and pseudomonas putida cells. the character of the fcba gene expression was studied. notwithstanding amplification of the gene dose and control of the inducible plac promoter, the level of substrate dehalogenation by recombinant e. coli strains was lower, as compared with that in the original kzt1 strain. cloning of the fcba gene in p. putida kz6r cells ... | 1991 | 1879677 |