abstract：:Two distinct spore appendage types of Clostridium bifermentans, a pinlike appendage and a tubular appendage, were studied by electron microscopy. The pinlike appendage is characterized by a shaft, about 100 A in diameter, which has a lobed caplike structure. The tubular appendage, 500 to 600 A in diameter, is characte...

journal_title：Journal of bacteriology

authors： Yolton DP,Pope L,Williams MG,Rode LJ

更新日期：1968-01-01 00:00:00

abstract：:Chloramphenicol-resistant strains of Staphylococcus aureus contain an inducible enzyme which inactivates chloramphenicol by acetylation in the presence of acetyl coenzyme A. The products of acetylation are chromatographically indistinguishable from those obtained with chloramphenicol-resistant Escherichia coli harbori...

journal_title：Journal of bacteriology

authors： Shaw WV,Brodsky RF

更新日期：1968-01-01 00:00:00

abstract：:The dermatophyte Trichophyton schoenleinii elaborates an extracellular collagenase which is specific for native collagen and gelatin and is separable from an enzyme which is active against Azocoll. The fungal enzyme differs from the bacterial collagenases in its acid pH and small molecular weight. In addition, the fun...

journal_title：Journal of bacteriology

authors： Rippon JW

更新日期：1968-01-01 00:00:00

abstract：:Lactate dehydrogenase (LDH) was studied in phage-propagating strains 29, 3A, 6, 81, and 42D of Staphylococcus aureus selected from the five groups in the International-Blair series. Cells were cultivated in Brain Heart Infusion (Difco) under nearly anaerobic conditions and were harvested near the end of the log phase....

journal_title：Journal of bacteriology

authors： Stockland AE,San Clemente CL

更新日期：1968-01-01 00:00:00

abstract：:The fatty acid pattern in three hydrocarbon-utilizing bacteria during growth on various substrates was examined. The predominant fatty acids in acetate-grown cells were C(16), C(16:1), C(18:1), and Br-C(19) and the major fatty acids in propane-grown cells were C(15), C(17), C(17:1), C(18:1), and Br-C(18). When one org...

journal_title：Journal of bacteriology

authors： Dunlap KR,Perry JJ

更新日期：1967-12-01 00:00:00

abstract：:Injection of mice with a sublethal dose of endotoxin 2 hr after administration of 0.1 ml of carbon tetrachloride (CCl(4)) killed 75% of the animals. CCl(4) alone killed no controls. Significant protection against this effect was afforded by 5 mg of cortisone and by 5 mg of nicotinamide adenine dinucleotide (NAD). With...

journal_title：Journal of bacteriology

authors： Synder IS,Agarwal MK,Berry LJ

更新日期：1967-12-01 00:00:00

abstract：:A completely stable F32 merodiploid has been isolated, which has the dsd genotype dsdA(+)dsdCx3 /F -dsdA(+)dsdC(+). The stabilization apparently does not result from an alteration in the F, or from its integration in the chromosome, but rather from a chromosomal aberration. The stable strain can exist in two forms, wh...

journal_title：Journal of bacteriology

authors： McFall E

更新日期：1967-12-01 00:00:00

abstract：:A detailed study of the cultural characteristics and cellular fatty acid composition of 27 isolates of Corynebacterium acnes was performed to establish the properties by which this organism may be identified and characterized. The fatty acids were extracted directly from whole cells and examined as methyl esters by ga...

journal_title：Journal of bacteriology

authors： Moss CW,Dowell VR Jr,Lewis VJ,Schekter MA

更新日期：1967-11-01 00:00:00

abstract：:The motility of Spirillum volutans is caused by the rotation of each polar flagellar fascicle in a direction opposite to that of the more slowly rotating cell. Both flagella form cones of revolution oriented in the same direction. When the cell reverses its motion, both fascicles simultaneously reverse their rotation ...

journal_title：Journal of bacteriology

authors： Krieg NR,Tomelty JP,Wells JS Jr

更新日期：1967-11-01 00:00:00

abstract：:A nitrate-utilizing strain of marine bacteria was isolated in which luciferase was inducible by l-arginine. The induction was highly specific; structural analogues of arginine were ineffective, as were other natural amino acids. Several metabolites of arginine acted as weak inducers but did not affect the rate of indu...

journal_title：Journal of bacteriology

authors： Coffey JJ

更新日期：1967-11-01 00:00:00

abstract：:Conditions have been established for the preparation of spheroplasts of Saccharomyces cerevisiae which are able to increase their net content of protein, ribonucleic acid (RNA), and deoxyribonucleic acid (DNA), several-fold upon incubation in a medium stabilized with 1 m sorbitol. The rate of RNA and protein synthesis...

journal_title：Journal of bacteriology

authors： Hutchison HT,Hartwell LH

更新日期：1967-11-01 00:00:00

abstract：:Isotopic exchange of (35)S between penicillins and 6-amino-penicillanic acid (6-APA) was observed in cell-free extracts of Penicillium chrysogenum. Sulfhydryl-containing compounds were required for activity. Dithiothreitol, dithioerythritol, mercaptoethanol, and glutathione served as activators. The acyltransferase wa...

journal_title：Journal of bacteriology

authors： Pruess DL,Johnson MJ

更新日期：1967-11-01 00:00:00

abstract：:Well-characterized Salmonella mutants formerly used in biosynthetic studies of lipopolysaccharides were used to study the toxic portion of the complex endotoxin. Endotoxins prepared from wild types and their mutants were tested for their biological activities, including pyrogenicity, lethality, and immunogenicity. The...

journal_title：Journal of bacteriology

authors： Kim YB,Watson DW

更新日期：1967-11-01 00:00:00

abstract：:An investigation of recombination events occurring in zygotes formed during conjugation has been carried out. The frequencies with which donor markers situated close to the origin are recovered indicates an obligatory interaction between the recipient chromosome and a region on the donor chromosome adjacent to the lea...

journal_title：Journal of bacteriology

authors： Pittard J,Walker EM

更新日期：1967-11-01 00:00:00

abstract：:Yeast cells, Candida utilis, in water suspension and in the absence of electrolytes were found to be very sensitive to several proteins of moderate size, including ribonuclease, protamine, lysozyme, bovine serum albumin, cytochrome c, and myoglobin. Viability ceases rapidly, and ultraviolet-absorbing compounds (260 mm...

journal_title：Journal of bacteriology

authors： Yphantis DA,Dainko JL,Schlenk F

更新日期：1967-11-01 00:00:00

abstract：:Aerobacter cloacae UW-C83 and Escherichia coli K-12 were grown under various anaerobic environments. Y(atp) values were calculated by determination of cell weights and analyses for fermentation products. These Y(atp) values are compared with others reported in the literature. Limitation of growth by factors other than...

journal_title：Journal of bacteriology

authors： Hernandez E,Johnson MJ

更新日期：1967-10-01 00:00:00

abstract：:During growth of streptomycin-dependent strains of Escherichia coli in the absence of streptomycin (deprived growth), both constitutive and inducible synthesis of beta-galactosidase were preferentially inhibited. A similar preferential inhibition of constitutive and derepressed synthesis of alkaline phosphatase was ob...

journal_title：Journal of bacteriology

authors： Goodman RE,Spotts CR

更新日期：1967-10-01 00:00:00

abstract：:Glucose-1-(14)C and acetylglucosamine-1-(14)C were added singly and together with equal amounts of the unlabeled reciprocal to Brain Heart Infusion and used for the culture of Streptococcus pyogenes. The labeling pattern of the rhamnose, glucosamine, and muramic acid in the cell wall supported an intermediary role for...

journal_title：Journal of bacteriology

authors： Barkulis SS,Boltralik JJ,Hankin H,Heymann H

更新日期：1967-10-01 00:00:00

abstract：:Studies of mitochondrial biogenesis in yeast have been hampered by a lack of suitable membrane markers in anaerobically grown cells subsequently grown in air. Cytochrome c peroxidase activity and subcellular location was studied to determine whether it would be a useful marker for an analysis of mitochondrial formatio...

journal_title：Journal of bacteriology

authors： Avers CJ

更新日期：1967-10-01 00:00:00

abstract：:Studies on the active product of pepsin digestion of rabbit immunoglobulin G (IgG), F(ab')(2) produced from antiserum against Neurospora glutamate dehydrogenase, showed it to behave in the same way, in both antienzyme and precipitation experiments, as homologous IgG. It is proposed that the inhibition of glutamate deh...

journal_title：Journal of bacteriology

authors： Roberts DB

更新日期：1967-10-01 00:00:00

abstract：:The relationships of five feedback inhibitors for the Bacillus licheniformis glutamine synthetase were investigated. The inhibitors were distinguishable by differences in their competitive relationship for the substrates of the enzyme. Mixtures of l-glutamine and adenosine-5'-monophosphate (AMP) or histidine and AMP c...

journal_title：Journal of bacteriology

authors： Hubbard JS,Stadtman ER

更新日期：1967-10-01 00:00:00

abstract：:The morphological and physiological characteristics of 20 isolates of psychrophilic Bacillus were compared with 29 strains representing nine species of mesophilic Bacillus and 2 strains of Sporosarcina ureae to determine the taxonomic position of the psychrophiles. The psychrophiles formed four distinct groups which w...

journal_title：Journal of bacteriology

authors： Larkin JM,Stokes JL

更新日期：1967-10-01 00:00:00

abstract：:The genetic marker for sulfadiazine resistance was transferred by means of purified deoxyribonucleic acid from sulfadiazine-resistant Neisseria meningitidis and N. perflava to a sulfadiazine-sensitive strain of N. meningitidis. Over 80% of the isolates from these experiments, selected on the basis of sulfadiazine resi...

journal_title：Journal of bacteriology

authors： Kingsbury DT

更新日期：1967-09-01 00:00:00

abstract：:Colicinogenic factors ColI and ColV, which have been shown to behave as sex factors, could not be induced with mitomycin C. In contrast, the ColE(1), ColE(2), and ColE(3) factors, which do not exhibit any fertility factor characteristics, are inducible by this agent. The induced production of colicins E(1), E(2), and ...

journal_title：Journal of bacteriology

authors： Herschman HR,Helinski DR

更新日期：1967-09-01 00:00:00

abstract：:Six uvr mutants of Saccharomyces cerevisiae with hypersensitivity to ultraviolet (UV) light were isolated after mutagen treatment with ethylmethanesulfonate. UV sensitivity ranges from moderate to extreme, and four of the mutants are also sensitive to nitrous acid. Ranking in terms of UV sensitivity does not parallel ...

journal_title：Journal of bacteriology

authors： Snow R

更新日期：1967-09-01 00:00:00

abstract：:Fine details of the internal and external morphology of Cryptococcus neoformans as seen in ultrathin sections are described and illustrated with electron micrographs. The capsule characteristic of this species contained microfibrils (30 to 40 A in diameter) that appeared to radiate from the cell wall and to coil and i...

journal_title：Journal of bacteriology

authors： Edwards MR,Gordon MA,Lapa EW,Ghiorse WC

更新日期：1967-09-01 00:00:00

abstract：:The vitamin requirements of the group Q streptococci (Streptococcus avium) and the established enterococcal species (S. faecalis and S. faecium) paralleled one another, although S. avium did not characteristically require riboflavine or pyridoxal. S. avium was further differentiated in that it required thymine for gro...

journal_title：Journal of bacteriology

authors： Nowlan SS,Deibel RH

更新日期：1967-08-01 00:00:00

abstract：:Apparent pK values were determined for a series of commercially available carboxylic acids in a search for a buffer suitable for bacterial studies at pH 7 in media free from nitrogen, sulfur, and phosphorus. Of the compounds possessing pK' values near pH 7,3,6-endomethylene-1,2,3,6-tetrahydrophthalic acid (EMTA) was c...

journal_title：Journal of bacteriology

authors： Mallette MF

更新日期：1967-08-01 00:00:00

abstract：:The effect of sublethal, midlethal, and lethal doses of total-body X irradiation on the fecal microbial population of the rat was studied. No changes were observed in animals receiving sublethal doses of X ray. Midlethal and lethal doses produced an increase in the numbers of fecal coliforms, staphylococci, streptococ...

journal_title：Journal of bacteriology

authors： Klainer AS,Gorbach S,Weinstein L

更新日期：1967-08-01 00:00:00

abstract：:The presence of the altered lysine transfer ribonucleic acid (tRNA) in Bacillus subtilis spores is strongly dependent on the medium on which the cells were sporulated. Cells sporulated on synthetic media or dilute complex media contain little or none of the new component, whereas those sporulated on concentrated compl...

journal_title：Journal of bacteriology

authors： Lazzarini RA,Santangelo E

更新日期：1967-07-01 00:00:00

abstract：:Natural and immune human antibodies reactive with heat-labile and heat-stable antigens of virulent Neisseria gonorrhoeae were studied by use of an indirect fluorescent-antibody (IFA) procedure. The immunoglobulin class of the reactive antibodies was identified by using fluorescein-conjugated antisera specific for huma...

journal_title：Journal of bacteriology

authors： Cohen IR

更新日期：1967-07-01 00:00:00

abstract：:Growth of Schizosaccharomyces pombe in batch cultures in a commercial defined medium was found to be normal until the last generation before the stationary phase. Approximately one-half the progeny of the last division lysed. Lysis occurred at breaks in the cell wall at cell-plates whose fission was eccentric. Normal ...

journal_title：Journal of bacteriology

authors： Johnson BF

更新日期：1967-07-01 00:00:00

abstract：:Streptococcus agalactiae cultures possess an aerobic pathway for glucose oxidation that is strongly inhibited by cyanide. The products of glucose oxidation by aerobically grown cells of S. agalactiae 50 are lactic and acetic acids, acetylmethylcarbinol, and carbon dioxide. Glucose degradation products by aerobically g...

journal_title：Journal of bacteriology

authors： Mickelson MN

更新日期：1967-07-01 00:00:00

abstract：:The structure and composition of the cell walls of hyphae of Neurospora crassa were investigated by electron microscopy, chemical analysis, and X-ray diffraction both before and after progressive enzymatic degradation by snail gut enzymes, chitinase, and trypsin. The wall consists of two phases: randomly disposed skel...

journal_title：Journal of bacteriology

authors： Manocha MS,Colvin JR

更新日期：1967-07-01 00:00:00

abstract：:When the crude ribosomal fraction of Saccharomyces cerevisiae was separated into "light" and "heavy" fractions, fatty acid synthetase was concentrated in the former, whereas acetyl-Coenzyme A synthetase, fatty acid "desaturase," and squalene oxidocyclase were found in the latter. The "desaturase" sedimented with the r...

journal_title：Journal of bacteriology

authors： Klein HP,Volkmann CM,Leaffer MA

更新日期：1967-07-01 00:00:00

abstract：:The lethal activity of a thymineless mutant of Staphylococcus aureus Wood 46 strain has been compared with that of three naturally occurring strains: parent Wood 46, Smith, and coagulase-negative SA-13. The thymineless mutant and the parent Wood 46 strain showed a sharp decline in culturable units from the peritoneal ...

journal_title：Journal of bacteriology

authors： Mathieu LG,De Repentigny J,Turgeon S,Sonea S

更新日期：1967-07-01 00:00:00

abstract：:The morphology, on MacConkey's agar, of colonies of the bacteria commonly found in enteric specimens is sufficiently characteristic and distinctive, when observed with transmitted oblique illumination and a low-power stereoscopic microscope, to enable identification at the generic (and occasionally the species) level ...

journal_title：Journal of bacteriology

authors： Finkelstein RA,Punyashthiti K

更新日期：1967-06-01 00:00:00

abstract：:The inability of Micrococcus sodonensis to grow on glucose as the sole source of carbon and energy was investigated. Estimation of pathways of glucose catabolism indicated that both the glycolytic and hexose monophosphate pathways are present in this organism. Comparative studies with Escherichia coli demonstrated tha...

journal_title：Journal of bacteriology

authors： Perry JJ,Evans JB

更新日期：1967-06-01 00:00:00

abstract：:When Mucor hiemalis NRRL 3103 was grown in soybean medium, only a small fraction of the proteinase produced by the organism appeared in the culture filtrate, whereas the bulk of the enzyme was bound to the mycelial surface. Optimal pH of the proteinase ranged from 3.0 to 3.5. Inclusion of sodium chloride or other ioni...

journal_title：Journal of bacteriology

authors： Wang HL

更新日期：1967-06-01 00:00:00

abstract：:Reticulate bodies of the meningopneumonitis (MP) microorganism were purified from L cells 18 hr after infection by the combination of differential centrifugation in 30% sucrose solution and potassium tartrate density gradient centrifugation. It was ascertained by electron microscopy that purified preparations of retic...

journal_title：Journal of bacteriology

authors： Tamura A,Matsumoto A,Higashi N

更新日期：1967-06-01 00:00:00