Abstract:
:The ability of different metal ions to promote transformation of Pseudomonas aeruginosa by deoxyribonucleic acid of the plasmid RP1 was examined. CaCl2, MgCl2, and MnCl2 were found to promote such transformation, although at different frequencies and with the optimum response at different concentrations. Only MgCl2 promoted transfection of P. aeruginosa by the linear deoxyribonucleic acid of phage F116. CaCl2 was demonstrated to allow adsorption and entry into the cell of F116 deoxyribonucleic acid such that it became resistant to exogenous deoxyribonuclease, but phage production occurred only when MgCl2 was provided. Inactivation of linear phage deoxyribonucleic acid taken up in the absence of MgCl2 was observed. The transfection frequencies at various concentrations of MgCl2 were compared, and the optimum response occurred at the concentration which promoted the highest frequency of transformation by RP1 deoxyribonucleic acid.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Mercer AA,Loutit JSdoi
10.1128/JB.140.1.37-42.1979keywords:
subject
Has Abstractpub_date
1979-10-01 00:00:00pages
37-42issue
1eissn
0021-9193issn
1098-5530journal_volume
140pub_type
杂志文章abstract::In Caulobacter crescentus, progression through the cell cycle is governed by the periodic activation and inactivation of the master regulator CtrA. Two phosphorelays, each initiating with the histidine kinase CckA, promote CtrA activation by driving its phosphorylation and by inactivating its proteolysis. Here, we exa...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00992-09
更新日期:2009-12-01 00:00:00
abstract::A strain of Bacillus subtilis, UVSSP-42-1, which produces ultraviolet (UV)-sensitive spores and vegetative cells, was found to possess germinated spores 25 times more UV resistant than the resting spores. This relative resistance achieved upon germination was associated with the transition of the heat-resistant refrac...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.120.1.59-65.1974
更新日期:1974-10-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章,评审
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更新日期:2013-03-01 00:00:00
abstract::A novel phenotype is described for Escherichia coli K-12 carrying the prlA4 allele determining a membrane component of the protein export mechanism. It is manifest as transformation deficiency for plasmids containing the cloned group C streptococcal streptokinase gene, skc. Streptokinase plasmid mutations relieving th...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.171.4.2202-2208.1989
更新日期:1989-04-01 00:00:00
abstract::During conjugation, a single strand of DNA is cleaved at the origin of transfer (oriT) by the plasmid-encoded relaxase. This strand is then unwound from its complement and transferred in the 5'-to-3' direction, with the 3' end likely extended by rolling-circle replication. The resulting, newly synthesized oriT must th...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00818-12
更新日期:2012-10-01 00:00:00
abstract::An open-reading-frame fragment of a Methylobacterium sp. strain AM1 gene (moxF) encoding a portion of the methanol dehydrogenase structural protein has been used as a hybridization probe to detect similar sequences in a variety of methylotrophic bacteria. This hybridization was used to isolate clones containing putati...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.5.2063-2069.1988
更新日期:1988-05-01 00:00:00
abstract::Transcriptional regulation was demonstrated in Rickettsia prowazekii, an obligate intracytoplasmic bacterium. The level of citrate synthase (gltA) mRNA II, from promoter P2, was greater in the total RNA isolated from heavily infected L929 cells than in moderately infected L929 cells; conversely, the level of ATP/ADP t...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.18.5543-5545.1996
更新日期:1996-09-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.173.2.697-703.1991
更新日期:1991-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/JB.183.4.1455-1458.2001
更新日期:2001-02-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.95.3.980-982.1968
更新日期:1968-03-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00474-09
更新日期:2009-08-01 00:00:00
abstract::Analysis of a region involved in the conjugative transfer of the lactococcal conjugative element pRS01 has revealed a bacteria] group II intron. Splicing of this lactococcal intron (designated Ll.ltrB) in vivo resulted in the ligation of two exon messages (ltrBE1 and ltrBE2) which encoded a putative conjugative relaxa...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.12.3531-3538.1996
更新日期:1996-06-01 00:00:00
abstract::ComX and CSF are Bacillus subtilis extracellular signaling peptides. Many different strains of B. subtilis do not communicate due to strain-specific variation of ComX. We demonstrate that CSF is a species-specific signaling molecule that partially compensates for the lack of ComX-mediated communication between differe...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00187-08
更新日期:2008-06-01 00:00:00
abstract:UNLABELLED:Bacterial type IV coupling proteins (T4CPs) bind and mediate the delivery of DNA substrates through associated type IV secretion systems (T4SSs). T4CPs consist of a transmembrane domain, a conserved nucleotide-binding domain (NBD), and a sequence-variable helical bundle called the all-alpha domain (AAD). In ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00189-15
更新日期:2015-07-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.187.8.2737-2746.2005
更新日期:2005-04-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.114.2.645-651.1973
更新日期:1973-05-01 00:00:00
abstract::Klebsiella strain RE1544 contains two lac operons, one on the chromosome and one on a lac plasmid. A mutant of RE1544, in which the lacZ genes of both operons produce no active enzyme, was found to synthesize a beta-galactosidase that hydrolyzes ortho-nitrophenyl-beta-D-galactopyranoside but not lactose. Synthesis of ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.132.1.219-223.1977
更新日期:1977-10-01 00:00:00
abstract::Four genes, dra, tpp, drm, and pup, that specify enzymes involved in the catabolism of nucleosides and deoxynucleosides in Escherichia coli are known to be very closely linked in the order dra-tpp-drm-pup. By infecting cells with the phage Mu-1 and isolating low-thymine-requiring derivatives of a strain lacking thymid...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.121.2.475-484.1975
更新日期:1975-02-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.174.8.2478-2484.1992
更新日期:1992-04-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.172.5.2224-2229.1990
更新日期:1990-05-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.92.3.609-617.1966
更新日期:1966-09-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:
更新日期:1982-12-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.177.14.4183-4186.1995
更新日期:1995-07-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.140.2.738-741.1979
更新日期:1979-11-01 00:00:00
abstract::Thiamine pyrophosphate (TPP), the biologically active form of thiamine (also known as vitamin B1), is an essential cofactor for several important enzymes involved in carbohydrate metabolism, and therefore, it is required for all living organisms. We recently found that a thiamine-binding protein (TDE_0143) is essentia...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.02472-14
更新日期:2015-04-01 00:00:00
abstract::The control of men gene expression during growth and sporulation of Bacillus subtilis was examined at the transcriptional level. Two different approaches were used. (i) Steady-state levels of men-specific mRNA were measured directly. (ii) A men'-lacZ gene fusion was constructed. In both cases, it was observed that men...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.170.6.2742-2748.1988
更新日期:1988-06-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.110.3.1208-1210.1972
更新日期:1972-06-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.130.1.1-3.1977
更新日期:1977-04-01 00:00:00
abstract::One of the most puzzling results from the complete genome sequence of the methanogenic archaeon Methanococcus jannaschii was that the organism may have only one DNA polymerase gene. This is because no other DNA polymerase-like open reading frames (ORFs) were found besides one ORF having the typical alpha-like DNA poly...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.180.8.2232-2236.1998
更新日期:1998-04-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.12.5343-5352.1987
更新日期:1987-12-01 00:00:00