Abstract:
:The restriction deficient mutant 8195 of Acholeplasma laidlawii strain JA1 was transformed by the promiscuous streptococcal plasmid vector pNZ18 at a frequency of 4 x 10(-4)/cfu. The plasmid was maintained without structural rearrangements but was lost in the absence of a selection pressure, i.e. kanamycin or neomycin. Transformed primary colonies were easily recognized due to a different colony morphology. Replica filter plating, previously not obtained with mycoplasmas, was achieved using pNZ18 as a marker by incubating the replica filters with the cell side down on the new agar plates. These findings should greatly facilitate the genetic and functional analysis of A. laidlawii.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Sundström TK,Wieslander Adoi
10.1016/0378-1097(90)90362-tsubject
Has Abstractpub_date
1990-10-01 00:00:00pages
147-51issue
1-2eissn
0378-1097issn
1574-6968journal_volume
60pub_type
杂志文章abstract::We have constructed a Thermus promoter probe vector pPP11 containing the promoterless heat-stable kanamycin resistance (Kmr) gene. Total DNA of T. thermophilus HB27 was randomly sheared into 100-200 bp fragments and inserted into the EcoRI site of pPP11. About 1000 clones which showed Kmr were obtained, and they were ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1995.tb07511.x
更新日期:1995-05-01 00:00:00
abstract::The porin-associated protein of Rhodospirillum rubrum FR1 was found to contain a peptidoglycan binding motif. A partial fragment of 179 amino acids, obtained by cleavage of PAP with trypsin, Asp-N protease, and CNBr, was sequenced. Substantial sequence homology was found of the C-terminal part (residues 126-179) of po...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08134.x
更新日期:1996-04-15 00:00:00
abstract::In sausage, Staphylococcus carnosus increases the levels of methyl ketones which could arise from incomplete beta-oxidation of fatty acids followed by a decarboxylation. The objective of this work was to characterize the beta-decarboxylase activities in cell-free extract. By using different substrates, at least two ki...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(03)00749-3
更新日期:2003-11-07 00:00:00
abstract::Three clinical isolates of Salmonella enterica recovered between 2000 and 2003 in France and Senegal were found to produce extended-spectrum beta-lactamase CTX-M-15. The two isolates from Senegal were recovered from stool of a hospitalized patient with gastroenteritis in 2000 and from an urine specimen of an out-patie...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2004.07.058
更新日期:2004-09-15 00:00:00
abstract::The presence of cholesteryl glucosides and high levels of lysophospholipids are elements making the cell wall of Helicobacter pylori unique. In this study, we have investigated the relationship between lysophospholipid content and cholesteryl glucoside composition of variants of 6 clinical isolates. The samples were c...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2005.01.030
更新日期:2005-03-01 00:00:00
abstract::To study the pathogenicity of mouse cytomegalovirus (MCMV) and to identify virulence determinants, we have isolated and phenotypically characterised 25 temperature-sensitive (ts) mutants. Six of these (tsm9, tsm13, tsm20, tsm22, tsm28 and tsm30) failed to replicate in mice and were avirulent. Five mutants (tsm14, tsm1...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1993.tb06523.x
更新日期:1993-11-01 00:00:00
abstract::We present evidence that glycine betaine (betaine) which was synthesized from choline was excreted and reaccumulated in osmoregulating cells of Escherichia coli. Choline which was accumulated in bet mutants defective in betaine synthesis was shown to be excreted in response to betaine uptake. Our data suggest that E. ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(92)90395-5
更新日期:1992-09-15 00:00:00
abstract::Mesophilic Aeromonas hydrophila from serotypes O:11 and O:34 grown in a glucose-rich medium produce a capsule that can be seen under light and electron microscopy. The purified capsular polysaccharide has a composition qualitatively similar for strains O:11 and O:34, but quantitatively different. The capsular polysacc...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1995.tb07502.x
更新日期:1995-04-15 00:00:00
abstract::We have reported that the macrophage-like cell line J774.1, when infected with the periodontopathic bacterium Actinobacillus actinomycetemcomitans, undergoes apoptosis. In this study, we examined whether stimulation of J774.1 cells with lipopolysaccharide (LPS) before the infection affects the subsequent apoptosis. Cy...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1999.tb13622.x
更新日期:1999-06-15 00:00:00
abstract::Klebsiella aerogenes W70 was reported previously to produce a membrane-associated tyramine oxidase (TynA) that did not act on 2-phenylethylamine. Subsequently, a gene cloned from K. aerogenes W70 produced a soluble amine oxidase (MaoA) that acted readily on 2-phenylethylamine and tyramine. This enzyme appeared to be e...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb10175.x
更新日期:1997-01-01 00:00:00
abstract::Microbial competition for carbon sources is a primary determinant of rhizosphere ecology. We employed the PCR to examine the population fluctuations of a symbiotic nitrogen-fixing bacterium (Rhizobium etli) during the first 11 days following inoculation of Phaseolus vulgaris seedlings grown in the presence or absence ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08442.x
更新日期:1996-09-01 00:00:00
abstract::The discovery of nitrite-dependent anaerobic methane oxidation (n-damo) mediated by 'Candidatus Methylomirabilis oxyfera' with nitrite and methane as substrates has connected biogeochemical carbon and nitrogen cycles in a new way. The paddy fields often carry substantial methane and nitrate, thus may be a favorable ha...
journal_title:FEMS microbiology letters
pub_type: 信件
doi:10.1111/1574-6968.12567
更新日期:2014-11-01 00:00:00
abstract::Silkworm larva has recently been recognized as an alternative model animal for higher mammals to evaluate the effects of antibiotics. In this study, we examined the efficacy of the bacteriophage (phage) therapy, which harnesses phages as antibacterial agents, against Staphylococcus aureus infections, using the silkwor...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/1574-6968.12220
更新日期:2013-10-01 00:00:00
abstract::The ultrastructure of hepatitis B virus surface antigen (HBsAg) particles produced by recombinant yeast cells was examined using high-resolution negative staining, and ice embedding, electron microscopy. With negative staining, the HBsAg particles were spherical to slightly ovoid with a mean diameter of 27.5 nm and co...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1998.tb13171.x
更新日期:1998-08-15 00:00:00
abstract::A cordycepin-resistant mutant strain of Saccharomyces cerevisiae (CD-R2) was found to be deficient in adenosine kinase. This mutant accumulated S-adenosylhomocysteine during growth in the presence of exogenous adenosine and it grew in a pseudohyphal manner in the presence of this nucleotide. ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1995.tb07444.x
更新日期:1995-03-15 00:00:00
abstract::Bacteria carry a number of genes that cause cell growth arrest or cell lysis upon expression. Notably, defective prophages retain many lysis proteins. Here, we identified a novel lytic gene, ydfD, on the Qin prophage segment of the Escherichia coli genome. YdfD lyses 99.9% of cells within 2 h of its induction. The co-...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnw039
更新日期:2016-03-01 00:00:00
abstract::A novel Toxoplasma gondii interspersed repeat element (TgIRE), present in most of the tachyzoite chromosomes, was characterised. Two regions on the TgIRE sequence showed high identity to two different T. gondii expressed sequence tag cDNAs of unknown function, which seems to be TgIRE pseudogenes. Two set of primers we...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2000.tb08984.x
更新日期:2000-03-01 00:00:00
abstract::Cell wall LPS of Escherichia coli are organized as particles which are visible in the electron microscope, after treatment of the wall with alkali. We now describe alkali treated walls of three E. coli strains with differences in susceptibility to the T4 phage infection. Strain CR63, a usual host for the T4 phage, sho...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(89)90163-8
更新日期:1989-10-01 00:00:00
abstract::Yeast Cia2p is a component of the cytosolic Fe/S protein assembly (CIA) machinery. Initial studies of the CIA machinery were performed in yeast, but the precise role of Cia2p in this eukaryote is still unknown. We report that CIA2 deficiency results in impaired oxidative stress response, as evidenced by increased sens...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnv013
更新日期:2015-03-01 00:00:00
abstract::Monocytes and macrophages are an important host defense in humans infected with Salmonella enterica serovar Typhi. Bacterial ability to survive in these cells is therefore a crucial virulence characteristic of this pathogen. In this study, we demonstrate that growth of a Salmonella enterica serovar Typhi enterochelin ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10532.x
更新日期:2001-03-01 00:00:00
abstract::In Bacillus subtilis, carbon catabolite control is mediated by the regulatory protein CcpA. In addition to loss of catabolite repression, ccpA mutants exhibit a severe growth defect. They are not able to grow with glucose and ammonium as single sources of carbon and nitrogen, respectively. Only ccpA mutant strains car...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10830.x
更新日期:2001-09-11 00:00:00
abstract::We report the draft genome sequence from Aeromonas salmonicida sp. strain CBA100, which was characterized as an antibiotic-resistant bacterium isolated from infected rainbow trout. The total size of the genome is 4,788,109 bp, with a G + C content of 60.55%. Comparison of its open reading frames shows that the closest...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnu062
更新日期:2015-03-01 00:00:00
abstract::A structural characterization of polysaccharides extracted from the aposymbiotically cultured photobiont of the lichen Ramalina gracilis was carried out in order to compare them with those previously found in the symbiotic thallus. The photobiont was isolated from thallus fragments, following the method of Yamamoto, a...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2005.01.040
更新日期:2005-03-01 00:00:00
abstract::Reduction of D-fructose to D-mannitol by whole-cell biotransformation with recombinant resting cells of Corynebacterium glutamicum ATCC13032 requires the coexpression of mdh and fdh, which encode mannitol and formate dehydrogenases, respectively. However, d-mannitol formation is limited by the uptake of d-fructose in ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2008.01425.x
更新日期:2009-01-01 00:00:00
abstract::Pseudomonas chlororaphis PA23 is a biocontrol agent that, in addition to producing antifungal compounds, synthesizes polyhydroxyalkanoate (PHA) polymers as a carbon and energy sink. Quorum sensing (QS) and the anaerobic regulator (ANR) are required for PA23-mediated fungal suppression; however, the role of these regul...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnz223
更新日期:2019-09-01 00:00:00
abstract::In several bacterial species that show natural transformation, dprA has been described as a competence gene. The DprA protein has been suggested to be involved in the protection of incoming DNA. However, members of the dprA gene family (also called smf) can be detected in virtually all bacterial species, which suggest...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00423.x
更新日期:2006-10-01 00:00:00
abstract::This study was initiated to establish whether inhibition of growth of yeasts by medium-chain fatty acids resembled that caused by weak-acid preservatives or uncouplers. Unlike sorbic acid and 2,4-dinitrophenol, decanoic acid caused rapid cell death at its inhibitory concentration. This suggested a mode of action by me...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08407.x
更新日期:1996-08-15 00:00:00
abstract::Shigella flexneri, which causes shigellosis in humans, evolved from Escherichia coli. The sequencing of Shigella genomes has revealed that a large number of insertion sequence (IS) elements (over 200 elements) reside in the genome. Although the presence of these elements has been noted previously and summarized, more ...
journal_title:FEMS microbiology letters
pub_type: 信件
doi:10.1111/j.1574-6968.2007.00957.x
更新日期:2007-12-01 00:00:00
abstract::An analysis of the 2 kb nucleotide sequence including the 5'-flanking region of a cell-adhesion protein-encoding gene (mfbA) isolated from the basidiomycete Lentinus edodes revealed that the promoter region contains a TATA box, a GC box, a CAAT box, a CT-rich sequence element, a TATA box, two CT-rich sequences, and a ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1995.tb07718.x
更新日期:1995-08-01 00:00:00
abstract::An obligately anaerobic spirochete designated strain SEBR 4228T (T = type strain) was isolated from an oil field of Congo, Central Africa. The strain grew optimally with a sodium chloride concentration of 5% (sodium chloride concentration) growth range 1.0-10%) at 37 degrees C (growth temperature range 20-40 degrees C...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb13876.x
更新日期:1997-10-15 00:00:00