Abstract:
:Colonies of S. mutans OMZ61, Streptococcus sp. D182, Staphylococcus aureus Oxford NCTC 6571, and Candida albicans type A, MRL 3153 were grown on various media. Cubes of agar bearing two to three colonies were excised and processed for scanning electron microscopy. The characteristic shape of the colonies was seen when examined at low magnifications. At a magnification of 2,000 diameters, the arrangement of individual organisms within the colonies was observed. Plano-convex colonies consisted of uniformly distributed organisms, whereas S. mutans colonies presented a more complex arrangement possibly associated with the production of extracellular polysaccharides. Certain colonies were totally or partially covered by an adherent film through which the outline of the organisms could be distinguished.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Whittaker DK,Drucker DBdoi
10.1128/JB.104.2.902-909.1970subject
Has Abstractpub_date
1970-11-01 00:00:00pages
902-9issue
2eissn
0021-9193issn
1098-5530journal_volume
104pub_type
杂志文章abstract::The S-layers of Thermus thermophilus HB27 and T. thermophilus HB8 are composed of protein units of 95 kDa (P95) and 100 kDa (P100), respectively. We have selected S-layer deletion mutants from both strains by complete replacement of the slpA gene. Mutants of the two strains showed similar defects in growth and morphol...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.177.19.5460-5466.1995
更新日期:1995-10-01 00:00:00
abstract::Lactobacillus plantarum is a lactic acid bacterium (LAB) species commonly used as a probiotic. We have sequenced the genome of Lactobacillus plantarum JDM1, which is a Chinese commercial LAB with several probiotic functions, using a GS 20 system. We recommend that each commercial probiotic strain should undergo comple...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00587-09
更新日期:2009-08-01 00:00:00
abstract::In Selenomonas ruminantium, a strictly anaerobic and gram-negative bacterium, the degradation of lysine/ornithine decarboxylase (LDC/ODC) by ATP-requiring protease(s) is accelerated by the binding of P22, which is a ribosomal protein of this strain. Amino acid sequence alignment of S. ruminantium P22 with the L10 ribo...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01429-07
更新日期:2008-01-01 00:00:00
abstract::NAD- and glutathione-dependent formaldehyde dehydrogenase (GD-FALDH) of Paracoccus denitrificans has been purified as a tetramer with a relative molecular mass of 150 kDa. The gene encoding GD-FALDH (flhA) has been isolated, sequenced, and mutated by insertion of a kanamycin resistance gene. The mutant strain is not a...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.177.1.247-251.1995
更新日期:1995-01-01 00:00:00
abstract::The catB and catC genes encode cis,cis-muconate lactonizing enzyme I (EC 5.5.1.1) and muconolactone isomerase (EC 5.3.3.4), respectively. These enzymes are required for the dissimilation of benzoate to beta-ketoadipate by Pseudomonas putida and are under coordinate transcriptional regulation. By deletion analysis and ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.3.1297-1304.1988
更新日期:1988-03-01 00:00:00
abstract::Hall, Herbert E. (Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio), Robert Angelotti, Keith H. Lewis, and Milton J. Foter. Characteristics of Clostridium perfringens strains associated with food and food-borne disease. J. Bacteriol. 85:1094-1103. 1963.-A total of 83 strains of Clostridium perfringens-30 f...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.85.5.1094-1103.1963
更新日期:1963-05-01 00:00:00
abstract::Sporulation-related repeat (SPOR) domains are small peptidoglycan (PG) binding domains found in thousands of bacterial proteins. The name "SPOR domain" stems from the fact that several early examples came from proteins involved in sporulation, but SPOR domain proteins are quite diverse and contribute to a variety of p...
journal_title:Journal of bacteriology
pub_type: 杂志文章,评审
doi:10.1128/JB.00118-17
更新日期:2017-06-27 00:00:00
abstract::Altering membrane protein and lipid composition is an important strategy for maintaining membrane integrity during environmental stress. Many bacterial small RNAs (sRNAs) control membrane protein production, but sRNA-mediated regulation of membrane fatty acid composition is less well understood. The sRNA RydC was prev...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00461-19
更新日期:2019-09-06 00:00:00
abstract::Methylation of DNA at the C-5 position of cytosine occurs in diverse organisms. This modification can increase the rate of C→T transitions at the methylated position. In Escherichia coli and related enteric bacteria, the inner C residues of the sequence CCWGG (W is A or T) are methylated by the Dcm enzyme. These sites...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00371-18
更新日期:2018-11-26 00:00:00
abstract::Burkholderia species, including opportunistic pathogens in the Burkholderia cepacia complex (Bcc), have genes to produce contact-dependent growth inhibition (CDI) system proteins. CDI is a phenomenon in which Gram-negative bacteria use the toxic C terminus of a polymorphic surface-exposed exoprotein, BcpA, to inhibit ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00012-19
更新日期:2019-05-22 00:00:00
abstract::Bacteroides fragilis synthesizes eight distinct capsular polysaccharides, more than any described bacterium outside the order Bacteroidales. Here, we show that this organism also produces a high-molecular-weight extracellular polysaccharide (EPS). Expression of the EPS results in the formation of a large polysaccharid...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01519-07
更新日期:2008-02-01 00:00:00
abstract::Wood, N. P. (A. & M. College of Texas, College Station), and D. J. O'Kane. Formate-pyruvate exchange reaction in Streptococcus faecalis. I. Factor requirement for whole cells. J. Bacteriol. 87:97-103. 1964.-A factor present in plant and animal sources was found necessary for the incorporation of formate-C(14) into pyr...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.87.1.97-103.1964
更新日期:1964-01-01 00:00:00
abstract::Using a quantitative assay for measuring chemotaxis, we tested a variety of sugars and sugar derivatives for their ability to attract Escherichia coli bacteria. The most effective attractants, i.e., those that have thresholds near 10(-5) M or below, are N-acetyl-d-glucosamine, 6-deoxy-d-glucose, d-fructose, d-fucose, ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.115.3.824-847.1973
更新日期:1973-09-01 00:00:00
abstract::The intracellular levels of cyclic adenosine 3',5'-monophosphate (cyclic AMP) were measured at various intervals during growth and morphogenesis in Arthrobacter crystallopoietes. Cyclic AMP levels remained relatively constant throughout growth in spherical cells grown in glucose-based media. Immediately after inoculat...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.129.2.874-879.1977
更新日期:1977-02-01 00:00:00
abstract::During growth of the halophilic archaeon Haloarcula marismortui on D-xylose, a specific D-xylose dehydrogenase was induced. The enzyme was purified to homogeneity. It constitutes a homotetramer of about 175 kDa and catalyzed the oxidation of xylose with both NADP+ and NAD+ as cosubstrates with 10-fold higher affinity ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.186.18.6198-6207.2004
更新日期:2004-09-01 00:00:00
abstract::The mutation sup-3 in Bacillus subtilis suppresses ochre (TAA) mutations at each of three codons in the 5' end of the cat-86 coding sequence. The suppressor is shown to insert lysine at ochre codons. The efficiency of suppression by sup-3 is about 15%, as determined by changing a cat-86 Lys codon (codon 12) to an ochr...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.171.10.5322-5324.1989
更新日期:1989-10-01 00:00:00
abstract::Dowell, C. E. (The University of Texas, Dallas) and E. D. Rosenblum. Staphylococcal transducing particle. J. Bacteriol. 84:1076-1079. 1962.-When novobiocin-resistant transductants were isolated under conditions that permitted superinfection, almost all the clones were lysogenic for the transducing phage. If superinfec...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.84.5.1076-1079.1962
更新日期:1962-11-01 00:00:00
abstract::Thiobacillus neapolitanus, when grown in continuous culture with thiosulfate limiting growth, possessed an apparent maximal molar growth yield of 8.0 g (dry weight) per mole of thiosulfate. The substrate requirement for energy of maintenance was the highest yet reported, amounting to 21.8 mmoles of thiosulfate per g p...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.93.3.874-878.1967
更新日期:1967-03-01 00:00:00
abstract::We present the complete genome sequence of Listeria welshimeri, a nonpathogenic member of the genus Listeria. Listeria welshimeri harbors a circular chromosome of 2,814,130 bp with 2,780 open reading frames. Comparative genomic analysis of chromosomal regions between L. welshimeri, Listeria innocua, and Listeria monoc...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00758-06
更新日期:2006-11-01 00:00:00
abstract::We showed that the heat killing curve for exponentially growing Saccharomyces cerevisiae was biphasic. This suggests two populations of cells with different thermal killing characteristics. When exponentially growing cells separated into cell cycle-specific fractions via centrifugal elutriation were heat shocked, the ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.2.779-784.1987
更新日期:1987-02-01 00:00:00
abstract::Tn916 [carries tet(M)] is a 16.4-kb conjugative transposon that can establish itself in multiple copies in Enterococcus faecalis. To study the interaction of coresident homologous transposons during conjugation, an E. faecalis mutant defective in homologous recombination was utilized for construction of strains harbor...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.173.22.7136-7141.1991
更新日期:1991-11-01 00:00:00
abstract::Microbial communities in the termite hindgut are essential for degrading plant material. We present the high-quality draft genome sequence of the Opitutaceae bacterium strain TAV1, the first member of the phylum Verrucomicrobia to be isolated from wood-feeding termites. The genomic analysis reveals genes coding for li...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00264-12
更新日期:2012-05-01 00:00:00
abstract::The Lactococcus lactis subsp. lactis strains isolated from dairy products are auxotrophs for branched-chain amino acids (leucine, isoleucine, and valine), while most strains isolated from nondairy media are prototrophs. We have cloned and sequenced the leu genes from one auxotroph, IL1403. The sequence is 99% homologo...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.175.14.4383-4390.1993
更新日期:1993-07-01 00:00:00
abstract::The inner membrane TET (TetA) protein, which is involved in Tn10-mediated microbial tetracycline resistance, consists of two domains, alpha and beta, both of which are needed for tetracycline resistance and efflux (M.S. Curiale, L.M. McMurry, and S.B. Levy, J. Bacteriol. 157:211-217, 1984). Since tetracycline-sensitiv...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.4.1715-1720.1988
更新日期:1988-04-01 00:00:00
abstract::Short sequence repeats (SSRs), potentially representing variable numbers of tandem repeat (VNTR) loci, were identified for the human-pathogenic yeast species Candida albicans by computerized DNA sequence scanning. The individual SSR regions were investigated in different clinical isolates of C. albicans. Most of the C...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.180.15.3771-3778.1998
更新日期:1998-08-01 00:00:00
abstract:UNLABELLED:Succinic semialdehyde (SSA), an important metabolite of γ-aminobutyric acid (GABA), is a ligand of the repressor AttJ regulating the expression of the attJ-attKLM gene cluster in the plant pathogen Agrobacterium tumefaciens. While the response of A. tumefaciens to GABA and the function of attKLM have been ex...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00373-15
更新日期:2016-01-11 00:00:00
abstract::In rod-shaped bacteria, certain proteins are specifically localized to the cell poles. The nature of the positional information that leads to the proper localization of these proteins is unclear. In a screen for factors required for the localization of the Shigella sp. actin assembly protein IcsA to the bacterial pole...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.187.17.6187-6196.2005
更新日期:2005-09-01 00:00:00
abstract::Strains missing several genes required for chemotaxis toward amino acids, peptides, and certain sugars were tethered and their rotational behavior was analyzed. Null strains (called gutted) were deleted for genes that code for the transducers Tsr, Tar, Tap, and Trg and for the cytoplasmic proteins CheA, CheW, CheR, Ch...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.5.1878-1885.1987
更新日期:1987-05-01 00:00:00
abstract::RasP is a predicted intramembrane metalloprotease of Bacillus subtilis that has been proposed to cleave the stress response anti-sigma factors RsiW and RsiV, the cell division protein FtsL, and remnant signal peptides within their transmembrane segments. To provide evidence for direct effects of RasP on putative subst...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00381-17
更新日期:2017-09-05 00:00:00
abstract::The galP1 promoter is responsible for galactose-dependent, glucose-sensitive transcription of the galactose utilization operon of Streptomyces coelicolor and Streptomyces lividans. We describe the characterization of mutations that were positioned directly upstream of the apparent transcription start site of galP1 and...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.175.5.1213-1220.1993
更新日期:1993-03-01 00:00:00