Abstract:
:The peptidoglycan from two types of filamentous cell division mutants of Agmenellum quadruplicatum strain BG1 has been compared to that of the parent organism. Small variations in the total peptidoglycan composition on a dry-weight basis were found in the mutants. The reduced level of peptidoglycan in the serpentine mutant is consistent with a general decrease in the ratio of surface area to volume as compared to the parent organism. The increased peptidoglycan content in the septate mutant confirms previous ultrastructural observations of the greatly enlarged peptidoglycan septum between adjacent cells. A comparison of peptidoglycan composition and cross-linking in the two types of filamentous mutants of A. quadruplicatum and in drug-induced phenocopies suggests that structural alterations of the peptidoglycan are not involved in the apparent impairments of cellular division. Furthermore, data concerning the relative susceptibilities of the parent and mutants to antibiotics indicate that neither mutant exhibits a gross alteration of permeability.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Ingram LO,Van Baalen C,Fisher WDdoi
10.1128/JB.111.2.614-621.1972subject
Has Abstractpub_date
1972-08-01 00:00:00pages
614-21issue
2eissn
0021-9193issn
1098-5530journal_volume
111pub_type
杂志文章abstract::Rickettsia rickettsii, the causative agent of Rocky Mountain spotted fever, contains two immunodominant proteins, rOmpA and rOmpB, in the outer membrane. Both rOmpA and rOmpB are conserved throughout spotted fever group rickettsiae as members of a family of autotransporter proteins. Previously, it was demonstrated tha...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00826-16
更新日期:2017-02-28 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::Analyses of the Staphylococcus epidermidis multiresistance plasmids pSK697 and pSK818 have revealed them to be closely related to the trimethoprim resistance plasmid pSK639, also isolated from S. epidermidis. pSK697 and pSK818 were found to contain a cointegrated copy of a second plasmid related to the S. epidermidis ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.20.6070-6073.1996
更新日期:1996-10-01 00:00:00
abstract::Gene 1 of bacteriophage T4 has been cloned into a lambda pL expression vector, resulting in the overproduction of deoxynucleotide kinase. A procedure that includes affinity chromatography on Cibacron Blue F3GA-agarose has been used to purify milligram quantities of enzymes from a 2-liter culture. The enzyme has been p...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.172.6.2935-2939.1990
更新日期:1990-06-01 00:00:00
abstract::In this study, we demonstrated that the surface-expressed enolase from diarrheal isolate SSU of Aeromonas hydrophila bound to human plasminogen and facilitated the latter's tissue-type plasminogen activator-mediated activation to plasmin. The bacterial surface-bound plasmin was more resistant to the action of its spec...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00005-09
更新日期:2009-05-01 00:00:00
abstract::The lipopolysaccharide (LPS) from a Rhizobium phaseoli mutant, CE109, was isolated and compared with that of its wild-type parent, CE3. A previous report has shown that the mutant is defective in infection thread development, and sodium dodecyl sulfate-polyacrylamide gel electrophoresis shows that it has an altered LP...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.11.4923-4928.1987
更新日期:1987-11-01 00:00:00
abstract::Promoters were cloned from the chromosomal DNA of Lactococcus lactis subsp. lactis NP4510 by using promoter-probe vector pGKV210. N-Methyl-N'-nitro-N-nitrosoguanidine-induced mutagenesis of L. lactis-(pBV413), with low-level expression of the cat-86 gene, resulted in enhanced expression. Subcloning and sequencing of t...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.21.6754-6758.1994
更新日期:1994-11-01 00:00:00
abstract::In contrast to canonical phage endolysins, which require holin-mediated disruption of the membrane to gain access to attack the cell wall, signal anchor release (SAR) endolysins are secreted by the host sec system, where they accumulate in an inactive form tethered to the membrane by their N-terminal SAR domains. SAR ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00674-10
更新日期:2010-11-01 00:00:00
abstract::The Rhizobium leguminosarum biovar viciae genome contains several genes predicted to determine surface polysaccharides. Mutants predicted to affect the initial steps of polysaccharide synthesis were identified and characterized. In addition to the known cellulose (cel) and acidic exopolysaccharide (EPS) (pss) genes, w...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01694-07
更新日期:2008-07-01 00:00:00
abstract::Micrococcus sp. strain 12B was isolated by enriching for growth with dibutylphthalate as the sole carbon and energy source. A pathway for the metabolism of dibutylphthalate and phthalate by micrococcus sp. strain 12B is proposed: dibutylphthalate leads to monobutylphthalate leads to phthalate leads to 3,4-dihydro-3,4-...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.151.1.48-57.1982
更新日期:1982-07-01 00:00:00
abstract::The mobilizable Bacteroides element NBU2 (11 kbp) was found originally in two Bacteroides clinical isolates, Bacteroides fragilis ERL and B. thetaiotaomicron DOT. At first, NBU2 appeared to be very similar to another mobilizable Bacteroides element, NBU1, in a 2.5-kbp internal region, but further examination of the fu...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.182.12.3559-3571.2000
更新日期:2000-06-01 00:00:00
abstract::The role of the energy status of the yeast cell in the sensitivity of cultures to two yeast toxins was examined by using 12K release from cells as a measure of toxin action. The Saccharomyces cerevisiae killer toxin bound to sensitive cells in the presence of drugs that interfered with the generation or use of energy,...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.129.2.668-677.1977
更新日期:1977-02-01 00:00:00
abstract::An important feature of Escherichia coli pathogenesis is an ability to withstand extremely acidic environments of pH 2 or lower. This acid resistance property contributes to the low infectious dose of pathogenic E. coli species. One very efficient E. coli acid resistance system encompasses two isoforms of glutamate de...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.184.24.7001-7012.2002
更新日期:2002-12-01 00:00:00
abstract::Atractyloside and carboxyatractyloside partially inhibited nitrogenase activity (acetylene reduction) by isolated vesicles of Frankia strain EAN1pec. Extracts of disrupted vesicles showed nitrogenase activity that was not affected by the inhibitors. The vesicles accumulated ATP by an atractyloside-sensitive mechanism....
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.7.3053-3057.1988
更新日期:1988-07-01 00:00:00
abstract::Escherichia coli K-12 strain CU1008 cannot use L-serine as the sole carbon source, but it could use L-serine as an auxiliary carbon source with glucose, L-alanine, or pyruvate and could derive energy from L-serine to support oxygen uptake. CU1008 grew with L-serine if it was also provided with glycine and leucine. The...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.151.2.777-782.1982
更新日期:1982-08-01 00:00:00
abstract::The human bacterial pathogens Chlamydia spp. possess a genus-specific lipopolysaccharide as a major surface antigen, the structure of which has been determined by analytical chemistry as Kdop alpha 2-8-Kdop alpha 2-4-Kdop alpha 2-6GlcNp beta 1-6-GlcNol (Kdo, 3-deoxy-D-manno-2-octulosonic acid). Immunochemical studies ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.173.6.1862-1866.1991
更新日期:1991-03-01 00:00:00
abstract::The type IV secretion system encoded by the virB operon is required for full virulence of Brucella sp., and the present study links the RNA chaperone Hfq to wild-type expression of virB in Brucella abortus 2308. Studies employing virB-lacZ fusions, quantitative reverse transcription-PCR, and immunoblot analysis showed...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.05623-11
更新日期:2012-01-01 00:00:00
abstract::Strains of Bacillus thuringiensis such as B. thuringiensis subsp. israelensis (ONR-60A) and B. thuringiensis subsp. morrisoni (PG-14) pathogenic for mosquito larvae produce a complex parasporal body consisting of several protein endotoxins synthesized during sporulation that form an aggregate of crystalline inclusions...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.06095-11
更新日期:2012-03-01 00:00:00
abstract::Flagellum formation by ubiquinone- and menaquinone-deficient mutant strains of Escherichia coli K-12 was studied under both aerobic and anaerobic growth conditions. Ubiquinone was found to be obligatory for aerobic flagellum formation but could be replaced by menaquinone for anaerobic flagellum formation. A mutant dev...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.132.3.1034-1035.1977
更新日期:1977-12-01 00:00:00
abstract:UNLABELLED:The Mycobacterium tuberculosis exported repetitive protein (RvErp) is a crucial virulence-associated factor as determined by its role in the survival and multiplication of mycobacteria in cultured macrophages and in vivo Although attempts have been made to understand the function of Erp protein, its exact ro...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00120-16
更新日期:2016-09-22 00:00:00
abstract::When Agrobacterium tumefaciens cells grown in the presence of tritiated thymidine to label specifically the bacterial deoxyribonucleic acid (DNA) are incubated with carrot root tissue for short periods of time, an appreciable fraction of the label becomes firmly associated with the root tissue. Such association is not...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.108.3.973-979.1971
更新日期:1971-12-01 00:00:00
abstract::Twenty-four-hour-old, aerobically grown, Luria-Bertani broth cultures of Salmonella typhimurium F98 suppressed the growth of a spectinomycin-resistant (Spcr) derivative of the same strain inoculated at 10(3) CFU ml(-1). This growth suppression is genus specific and RpoS independent, and it is not solely a result of nu...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.179.22.7186-7190.1997
更新日期:1997-11-01 00:00:00
abstract::The ESX-1 (ESAT-6 system 1) secretion system plays a conserved role in the virulence of diverse mycobacterial pathogens, including the human pathogen Mycobacterium tuberculosis and M. marinum, an environmental mycobacterial species. The ESX-1 system promotes the secretion of protein virulence factors to the extracytop...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00760-18
更新日期:2019-06-21 00:00:00
abstract::Although BBA74 initially was described as a 28-kDa virulence-associated outer-membrane-spanning protein with porin-like function, subsequent studies revealed that it is periplasmic and downregulated in mammalian host-adapted spirochetes. To further elucidate the role of this protein in the Borrelia burgdorferi tick-ma...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01802-08
更新日期:2009-04-01 00:00:00
abstract::Shigella spp. are the major cause of bacillary dysentery worldwide. The pathogenic process involves bacterial invasion and lysis of the phagocytic vacuole, followed by replication and movement within the cell cytoplasm and, ultimately, spread directly into adjacent cells. This study demonstrates that S. flexneri cytoc...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.181.4.1229-1237.1999
更新日期:1999-02-01 00:00:00
abstract::Some strains of Streptomyces produce sialidases. Two sialidases were purified over 1,000-fold from a culture filtrate of two Streptomyces species. They had the same properties in molecular weight, behavior to ions and other reagents, and substrate specificity. They showed very small differences in kinetic properties, ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.119.2.394-400.1974
更新日期:1974-08-01 00:00:00
abstract::Biofilms contribute to virulence of Staphylococcus aureus. Formation of biofilms is multifactorial, involving polysaccharide, protein, and DNA components, which are controlled by various regulators. Here we report that deletion of the rsp gene resulted in an increase in biofilm formation in strain MW2, suggesting that...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.05454-11
更新日期:2011-10-01 00:00:00
abstract::To isolate genes from Escherichia coli which regulate the labile hydrogenase activity, a plasmid library was used to transform hydL mutants lacking the labile hydrogenase. A single type of gene, designated hydG, was isolated. This gene also partially restored the hydrogenase activity in hydF mutants (which are defecti...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.171.8.4448-4456.1989
更新日期:1989-08-01 00:00:00
abstract::Thiocyanate hydrolase is a newly found enzyme from Thiobacillus thioparus THI 115 that converts thiocyanate to carbonyl sulfide and ammonia (Y. Katayama, Y. Narahara, Y. Inoue, F. Amano, T. Kanagawa, and H. Kuraishi, J. Biol. Chem. 267:9170-9175, 1992). We have cloned and sequenced the scn genes that encode the three ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.180.10.2583-2589.1998
更新日期:1998-05-01 00:00:00
abstract:UNLABELLED:FimV is a Pseudomonas aeruginosa inner membrane protein that regulates intracellular cyclic AMP (cAMP) levels-and thus type IV pilus (T4P)-mediated twitching motility and type II secretion (T2S)-by activating the adenylate cyclase CyaB. Its cytoplasmic domain contains three predicted tetratricopeptide repeat...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00322-16
更新日期:2016-07-28 00:00:00