Abstract:
:The ligated loop of the rabbit intestine was investigated as a possible experimental model for the study of Clostridium perfringens food poisoning. The method of preparation of the challenge inoculum was important in determining whether a given strain would provoke a response. When cultures were grown for 4 hr at 37 C in Skim Milk (Difco), 14 of 29 type A strains isolated from food-poisoning outbreaks consistently produced exudation of fluid and consequent dilation of the ileal segments. In contrast, 15 of the 18 strains derived from other sources failed to elicit a response. By use of different inoculum preparations, nearly all strains could be made to give at least an occasional positive loop reaction. Diarrhea was not obtained in rabbits by intraluminal injection into the normal ileum or by per os administration of the cultures. Lecithinase, purified and in concentrated culture supernatant fractions, failed to produce a response in the isolated ileal loops.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Duncan CL,Sugiyama H,Strong DHdoi
10.1128/JB.95.5.1560-1566.1968subject
Has Abstractpub_date
1968-05-01 00:00:00pages
1560-6issue
5eissn
0021-9193issn
1098-5530journal_volume
95pub_type
杂志文章abstract::Malmgren, Richard A. (National Cancer Institute; Bethesda, Md.), Alan S. Rabson, Paula G. Carney, and Frances J. Paul. Immunofluorescence of green monkey kidney cells infected with adenovirus 12 and with adenovirus 12 plus simian virus 40. J. Bacteriol. 91:262-265. 1966.-Immunofluorescence studies of the viral antigen...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.91.1.262-265.1966
更新日期:1966-01-01 00:00:00
abstract::Adler, H. E. (University of California, Davis), M. Shifrine, and Herrad Ortmayer. Mycoplasma inocuum sp. n., a saprophyte from chickens. J. Bacteriol. 82:239-240. 1961.-A new species of Mycoplasma was isolated from the infraorbital sinuses of chickens. The organism, a saprophyte, differs from all known mycoplasmas of ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.82.2.239-240.1961
更新日期:1961-08-01 00:00:00
abstract::The survival of ultraviolet (UV)-irradiated cultures of Haemophilus influenzae Rd is determined by at least two responses: (i) excision-repair ability and (ii) UV-induced cell lysis. An UV-resistant mutant, BC200, has the same capabilities as the wild type, Rd, for excising dimers but does not exhibit lysis. Lytic res...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.103.1.9-15.1970
更新日期:1970-07-01 00:00:00
abstract::Pediococcus halophilus X-160 which lacks catabolite control by glucose was isolated from nature (soy moromi mash). Wild-type strains, in xylose-glucose medium, utilized glucose preferentially over xylose and showed diauxic growth. With wild-type strain I-13, xylose isomerase activity was not induced until glucose was ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.171.4.1793-1800.1989
更新日期:1989-04-01 00:00:00
abstract::Klebsiella pneumoniae is a nosocomial pathogen frequently isolated from opportunistic infections, especially in clinical environments. In spite of its potential pathogenicity, this microorganism has several metabolic potentials that could be used in biotechnology applications. K. pneumoniae is able to metabolize glyce...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01077-08
更新日期:2009-02-01 00:00:00
abstract::Sites of transposon Tn7 insertion in the Escherichia coli chromosome were examined, and two distinct classes of target sites differing in nucleotide sequence were identified. The target site choice was found to be determined by Tn7-encoded transposition genes. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.172.5.2774-2778.1990
更新日期:1990-05-01 00:00:00
abstract::An m(k) (-)r(k) (-) mutation exerted no measurable effect on 5-bromouracil incorporation by a thymineless derivative of Escherichia coli K. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.104.1.606-607.1970
更新日期:1970-10-01 00:00:00
abstract::A homologue of the grmA spore germination gene of Bacillus megaterium and of a NaH-antiporter gene (napA) of Enterococcus hirae has been identified in Bacillus cereus 569 (ATCC 10876). The putative protein product has 58 and 43% amino acid identity with GrmA and NapA, respectively. Insertional inactivation of this B. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.183.2.476-482.2001
更新日期:2001-01-01 00:00:00
abstract::The formation of bacteriolytic enzymes of Staphylococcus aureus, with special reference to strain M18, was investigated under a variety of conditions. The bacteriolytic activity was tested by using whole cells of Micrococcus lysodeikticus as a substrate. Complex media were required for production, and a Casein Hydroly...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.104.1.227-233.1970
更新日期:1970-10-01 00:00:00
abstract::A colorimetric assay was developed for studying the kinetics of iron oxidation with whole cells of the chemoautotroph, Ferrobacillus ferrooxidans. The assay was more advantageous than the conventional method of Warburg manometry because of its simplicity, rapidity, and the small amount of cells required. The assay mea...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.99.2.552-557.1969
更新日期:1969-08-01 00:00:00
abstract::We previously showed that dprA is required for efficient processing of linear DNA during cellular transformation in Haemophilus influenzae. In this study the transcriptional regulation of dprA and two downstream genes, dprB and dprC, is examined. We demonstrate by Northern blot analysis that the dprABC genes are trans...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.179.15.4815-4820.1997
更新日期:1997-08-01 00:00:00
abstract::DNA from the STA1 (extracellular glucoamylase) gene of Saccharomyces diastaticus was used as a probe to enable the cloning by colony hybridization of three DNA fragments from Saccharomyces cerevisiae; these were designated S1, S2, and SGA (intracellular, sporulation-specific glucoamylase gene). To examine the evolutio...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.5.2142-2149.1987
更新日期:1987-05-01 00:00:00
abstract::The formation of the five tryptophan biosynthetic enzymes of Neurospora crassa was shown to be derepressed in histidine-starved cells. This histidine-mediated derepression was not due to a lowered intracellular concentration of tryptophan in these cells. Furthermore, histidine-mediated derepression of tryptophan enzym...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.104.1.98-106.1970
更新日期:1970-10-01 00:00:00
abstract::CRM 228 (T. Uchida, A. M. Pappenheimer, and R. Greany, J. Biol. Chem. 248:3838-3844, 1973), a mutant form of diphtheria toxin which completely lacks ADP-ribosyltransferase activity, contains five amino acid substitutions. The two amino acid changes that fall within the A chain of the toxin (G79D and E162K) were separa...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.15.4766-4769.1994
更新日期:1994-08-01 00:00:00
abstract::Choline-containing teichoic acid seems to be essential for the adsorption of bacteriophage Dp-1 to pneumococci. This conclusion is based on the following observations: In contrast to pneumococci grown in choline-containing medium, cells grown in medium containing ethanolamine or other submethylated aminoalcohols inste...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.151.3.1581-1590.1982
更新日期:1982-09-01 00:00:00
abstract::Thermus thermophilus HB8 can grow anaerobically by using a membrane-bound nitrate reductase to catalyze the reduction of nitrate as a final electron acceptor in respiration. In contrast to other denitrifiers, the nitrite produced does not continue the reduction pathway but accumulates in the growth medium after its ac...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.182.8.2179-2183.2000
更新日期:2000-04-01 00:00:00
abstract::The filamentous cyanobacterium Anabaena fixes nitrogen in specialized cells called heterocysts. The immediate product of fixation, ammonia, is known to be assimilated by addition to glutamate to make glutamine. How fixed nitrogen is transported along the filament to the 10 to 20 vegetative cells that separate heterocy...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01512-12
更新日期:2013-01-01 00:00:00
abstract::DNA involved in the mobilization of broad-host-range plasmid R1162 was localized to a region of 2.7 kilobases within coordinates 3.4 to 6.1 kilobases on the R1162 map. By examining the transfer properties of plasmids containing cloned fragments of DNA from within this region, we showed that at least four trans-active ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.167.2.703-710.1986
更新日期:1986-08-01 00:00:00
abstract::In previous work, we cloned a Candida albicans cDNA for the glycolytic enzyme enolase and found a single, abundant enolase transcript on Northern (RNA) blots and a single protein on immunoblots, using antiserum raised against a recombinant enolase fusion protein. Because C. albicans enolase is abundantly produced duri...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.177.7.1772-1779.1995
更新日期:1995-04-01 00:00:00
abstract::Cell division of Escherichia coli K-12 strain PA3092 was inhibited by the addition of adenosine 3',5'-phosphate (cAMP), and the cellular morphology was changed from rods into filaments. Nucleoids in the filaments were regularly distributed and septum formation was perfectly inhibited. This inhibition of cell division ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.147.3.1105-1109.1981
更新日期:1981-09-01 00:00:00
abstract::The Bacillus subtilis PurR mediates adenine repression and guanosine induction of purA. PRPP inhibits binding of PurR to DNA in vitro. Mutations in the PRPP binding motif of PurR caused strong repression regardless of purine exclusions or additions, establishing the role of PRPP as regulator of PurR. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.185.22.6728-6731.2003
更新日期:2003-11-01 00:00:00
abstract::In Escherichia coli, the three branched-chain amino acid activating enzymes appear to be essential for multivalent repression of the isoleucine- and valine-forming enzymes. The results of experiments with a mutant, strain CU18, having an altered threonine deaminase, indicate that free isoleucine and some form of threo...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.117.1.29-39.1974
更新日期:1974-01-01 00:00:00
abstract::The multicellular developmental cycle of Myxococcus xanthus requires large-scale changes in gene transcription, and recent findings indicate that NtrC-like activators play a prominent role in regulating these changes. In this study, we made insertions in 28 uncharacterized ntrC-like activator (nla) genes and found tha...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.185.20.6083-6094.2003
更新日期:2003-10-01 00:00:00
abstract::It has been clear for over sixty years that the principal method whereby cells replicate and segregate their DNA is semiconservative. It is much less clear why it should be like this rather than, say, conservative. Recently, evidence has accumulated that supports the hypothesis that one of the functions of the cell cy...
journal_title:Journal of bacteriology
pub_type: 杂志文章,评审
doi:10.1128/JB.00119-19
更新日期:2019-05-22 00:00:00
abstract::The deoxyribonucleic acid base composition (percent guanine + cytosine [GC]) was determined for 29 strains, representing 18 species of the genus Kluyveromyces. It was concluded that on the basis of GC content (47.4%) and other properties K. veronae occupies an uncertain position in the genus Kluyveromyces. The GC cont...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.111.2.481-487.1972
更新日期:1972-08-01 00:00:00
abstract::Proteomics and targeted gene disruption were used to investigate the catabolism of benzene, styrene, biphenyl, and ethylbenzene in Rhodococcus jostii RHA1, a well-studied soil bacterium whose potent polychlorinated biphenyl (PCB)-transforming properties are partly due to the presence of the related Bph and Etb pathway...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01122-07
更新日期:2008-01-01 00:00:00
abstract::The ribosome content was markedly reduced when illumination (at 28 C) was repeatedly interrupted; an opposite trend was observed with continuous light as the temperature was decreased. ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.97.3.1518-1519.1969
更新日期:1969-03-01 00:00:00
abstract::The nucleotide sequence of a 7.3-kilobase-pair fragment of DNA encoding a hemolytic activity from Serratia marcescens was determined. Two large open reading frames were identified, designated shlA (Serratia hemolysin) and shlB, capable of encoding polypeptides of 165, 056 and 61,897 molecular weight, respectively. Bot...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.7.3177-3188.1988
更新日期:1988-07-01 00:00:00
abstract::Inhibition of sterol uptake in Saccharomyces cerevisiae sterol auxotroph FY3 (alpha hem1 erg7 ura) by delta-aminolevulinic acid (ALA) is dependent on the ability of the organism to synthesize heme from ALA. Sterol-depleted cells not exposed to ALA or strain PFY3 cells, with a double heme mutation, exposed to ALA did n...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.8.3707-3711.1987
更新日期:1987-08-01 00:00:00
abstract::In Anacystis nidulans, upon infection with cyanophage AS-1, after a lag period of 1 h the level of deoxyribonuclease (DNase) activity increaded rapidly up to 15- to 20-fold in 4 to 5 h in the light. In contrast, the ribonuclease and phosphomonoesterase activities increased significantly only 4 to 5 h after infection, ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.126.2.630-633.1976
更新日期:1976-05-01 00:00:00