Abstract:
:The first method for enucleation of yeast Saccharomyces cerevisiae is reported. Various strains, including some killer strain and respiratory-deficient mutants of Saccharomyces cerevisiae were enucleated after treatment with cytochalasin B. Removal of nuclei from protruding sphaeroplasts was induced by centrifugation in a Percoll density gradient. The enucleation yield (which averaged about 80%) and the quality of the cytoplasts were best when the yeast culture had been synchronized with nocodazole before the preparation. The presence of 1 mM CaCl2 and ATP (10 microM) in the enucleation medium prevented the formation of fragile products or aggregation. Cytoplasts could be stored for at least 1 day without visible deterioration.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Salek ATdoi
10.1111/j.1574-6968.1993.tb06484.xsubject
Has Abstractpub_date
1993-10-01 00:00:00pages
35-41issue
1eissn
0378-1097issn
1574-6968pii
0378-1097(93)90095-Jjournal_volume
113pub_type
杂志文章abstract::Two thermostable phytases were identified from Thai isolates of Aspergillus japonicus BCC18313 (TR86) and Aspergillus niger BCC18081 (TR170). Both genes of 1404 bp length, coding for putative phytases of 468 amino acid residues, were cloned and transferred into Pichia pastoris. The recombinant phytases, r-PhyA86 and r...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2008.01399.x
更新日期:2009-01-01 00:00:00
abstract::The emergence and dissemination of colistin resistance among Gram-negative bacteria is a global problem. We initiated a surveillance of colistin-resistant and -susceptible Escherichia coli in raw meats from chicken in Nepal. A total of 180 meat samples were collected; from these, 60 E. coli strains were isolated (33.3...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnz237
更新日期:2019-10-01 00:00:00
abstract::Within the phylum Bacteroidetes, the gyrB gene, encoding for the B subunit of the DNA gyrase, has been used as a phylogenetic marker for several genera closely related to Flavobacterium. The phylogenies of the complete 16S rRNA gene and the gyrB gene were compared for 33 Antarctic Flavobacterium isolates and 23 type s...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2011.02326.x
更新日期:2011-08-01 00:00:00
abstract::Human T-cell leukemia virus type I (HTLV-I) is an oncogenic retrovirus that was isolated in 1980 from a patient with adult T-cell leukemia. From the numerous experiments using infected patient T-cells, transgenic mice and tissue culture transformation assays, the Tax protein has been determined to be the transforming ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1111/j.1574-6968.1996.tb08322.x
更新日期:1996-07-01 00:00:00
abstract::A native collection of Bacillus thuringiensis strains was screened, once a reliable bioassay technique to assess the toxicity against the coffee berry borer (CBB) first-instar larvae was developed. A first round of bioassays with 170 strains indicated that the great majority of them showed no or very little insecticid...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(03)00557-3
更新日期:2003-09-12 00:00:00
abstract::Legionella pneumophila is known as a facultative intracellular parasite of free-living soil and freshwater amoebae, of which several species have been shown to support the growth of the pathogenic bacteria. We report for the first time the behaviour of two strains (c2c and Z503) of the amoeba Willaertia magna towards ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2008.01387.x
更新日期:2009-01-01 00:00:00
abstract::Blocking glycolytic breakdown of glucose by inactivation of phosphoglucose isomerase (Pgi) in Escherichia coli led to a greatly reduced maximum specific growth rate. Examination of the operational catabolic pathways and their flux ratios using [U-(13)C(6)]glucose-labeling experiments and metabolic flux ratio analysis ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10892.x
更新日期:2001-11-13 00:00:00
abstract::Salmonella Typhimurium harbors two Salmonella pathogenicity islands (SPIs), each encoding a type three secretion system for virulence proteins. Although there is increasing evidence of postinvasion roles for SPI-1, it has been generally accepted that SPI-1 genes are downregulated following the invasion process. Here, ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2011.02217.x
更新日期:2011-04-01 00:00:00
abstract::In this study, we investigated the mechanisms of Sch9 regulating the localization and phosphorylation of Bcy1. Our research indicated that Sch9 regulated localization of Bcy1 via Zds1 for the following reasons: (1) deletions of SCH9 or ZDS1 both caused nuclear localization of Bcy1; (2) Sch9 and Zds1 interacted physica...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2012.02552.x
更新日期:2012-06-01 00:00:00
abstract::High quality Fourier transform infrared (FTIR) spectra were acquired from living Micrasterias hardyi cells maintained in an IR transparent flow-through cell using a FTIR microscope coupled to a synchrotron light source. Spectral maps of living, nutrient-replete cells showed band intensities consistent with the known l...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2005.06.021
更新日期:2005-08-15 00:00:00
abstract::Pantoea ananatis accumulates gluconate during aerobic growth in the presence of glucose. Computer analysis of the P. ananatis SC17(0) sequenced genome revealed an ORF encoding a homologue (named gcd) of the mGDH (EC 1.1.99.17) apoenzyme from Escherichia coli and a putative pyrroloquinoline quinone (PQQ) biosynthetic o...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2011.02240.x
更新日期:2011-05-01 00:00:00
abstract::Four distinct bands of cysteine proteinase activity were detected when stationary-phase populations of Leishmania mexicana mexicana were subjected to gelatin-SDS-PAGE. The highest mobility band contained at least three isoforms separable by mono Q anion exchange chromatography. These high mobility activities were dist...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1992.tb05301.x
更新日期:1992-07-01 00:00:00
abstract::Lactic acid bacteria were screened for methional production from 4-methylthio-2-ketobutanoate. Only Lactococcus lactis IFPL730 produced high amounts of methional. It was demonstrated that production of this compound was an exclusively enzymatic reaction. The present work describes for the first time that L. lactis can...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10884.x
更新日期:2001-10-16 00:00:00
abstract::Inoculation of soil with bacteria (a Gram-negative rod [PD2] and a 4-membered consortium [DC1]) accelerated mineralisation of phenanthrene and pyrene (but not naphthalene) added individually to a pristine sand and a pristine organic soil. The half-life of naphthalene was 3.5 days in both soils whether inoculated or no...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb10420.x
更新日期:1997-07-01 00:00:00
abstract::A phage typing system using a group of 11 closely related phage (as judged by Southern analysis and restriction fragment length polymorphism analysis) was able to distinguish at least six phage types in Salmonella heidelberg of human and animal origin. Restriction fragment length polymorphism analysis using cosmid pro...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1993.tb06118.x
更新日期:1993-04-15 00:00:00
abstract::Changes in composition of the principal low molecular mass thiols of Leishmania donovani were monitored during the transformation of promastigotes, first to stationary phase metacyclic forms and then to amastigotes. No consistent variation in the thiol composition of the parasite which could account for the known incr...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1999.tb13495.x
更新日期:1999-04-01 00:00:00
abstract::Divergicin 750, a bacteriocin produced by Carnobacterium divergens 750, preferentially inhibited the growth of strains of Carnobacterium and Enterococcus. Selected strains of Listeria monocytogenes and Clostridium perfringens were also inhibited. The bacteriocin was purified to homogeneity by ammonium sulfate precipit...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08043.x
更新日期:1996-02-15 00:00:00
abstract::The est gene encoding an esterase from Acinetobacter lwoffii RAG-1 was cloned into E. coli under the control of the PL promoter of the phage lambda. The N-terminal sequence of the first 20 amino acids of the heterologous expressed esterase corresponded to that obtained from the nucleotide sequence. Antibodies prepared...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1993.tb06462.x
更新日期:1993-09-15 00:00:00
abstract::Clostridium difficile, a Gram-positive spore-forming anaerobe, causes infections in humans ranging from mild diarrhoeal to potentially life-threatening pseudomembranous colitis. The availability of genomic information for a range of C. difficile strains affords researchers the opportunity to better understand not only...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2010.02111.x
更新日期:2010-11-01 00:00:00
abstract::The chrysene-degrading bacterium Pseudoxanthomonas sp. PNK-04 was isolated from a coal sample. Three novel metabolites, hydroxyphenanthroic acid, 1-hydroxy-2-naphthoic acid and salicylic acid, were identified by TLC, HPLC and MS. Key enzyme activities, namely 1-hydroxy-2-naphthoate hydroxylase, 1,2-dihydroxynaphthalen...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2011.02301.x
更新日期:2011-07-01 00:00:00
abstract::Multiple restriction fragments, homologous to the previously described Mycoplasma bovis vspA gene, were identified in the chromosome of Mycoplasma agalactiae. The vspA, a representative variable surface lipoprotein gene of the vsp gene family, and four synthetic oligonucleotides, representing sequences complementary t...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb12716.x
更新日期:1997-11-01 00:00:00
abstract::Pseudomonas aeruginosa is a Gram-negative pathogen and the major cause of mortality in patients with cystic fibrosis. The mechanisms that P. aeruginosa strains use to regulate intracellular zinc have an effect on infection, antibiotic resistance and the propensity to form biofilms. However, zinc homeostasis in P. aeru...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnx151
更新日期:2017-09-01 00:00:00
abstract::Three strains of Streptococcus uberis isolated from dairy cows with mastitis were co-cultured with a bovine mammary epithelial cell line (MAC-T) in Dulbecco's modified Eagle's medium without fetal bovine serum. Protein profiles from culture supernatants and bacterial pellets among different treatments were compared by...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1998.tb13896.x
更新日期:1998-09-15 00:00:00
abstract::Efficient type-III secretion depends on cytosolic molecular chaperones, which bind specifically to the translocators and effectors. In the past there has been a tendency to shoe-horn all type-III-secretion chaperones into a single structural and functional class. However, we have shown that the LcrH/SycD-like chaperon...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(03)00344-6
更新日期:2003-06-06 00:00:00
abstract::CheY, the response regulator of the chemotaxis system in Escherichia coli, can be regulated by two covalent modifications - phosphorylation and acetylation. Both covalent modifications are involved in chemotaxis, but the mechanism and role of the acetylation are still obscure. While acetylation was shown to repress th...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/1574-6968.12224
更新日期:2013-10-01 00:00:00
abstract::A novel strain of Rhizopus oryzae WPG secretes a noninduced lipase (ROLw) in the culture medium; purified ROLw is a protein of 29 kDa, the 45 N-terminal amino acid residues were sequenced, this sequence is very homologous to Rhizopus delemar lipase (RDL), Rhizopus niveus lipase (RNL) and R. oryzae lipase (ROL29) seque...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00323.x
更新日期:2006-07-01 00:00:00
abstract::We report for the first time the cloning and characterisation of a protozoal enzyme involved in plant cell wall polysaccharide degradation. A cDNA library was constructed from the ruminal protozoan Polyplastron multivesiculatum and a stable clone expressing xylanase activity was isolated. The encoded enzyme belongs to...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1999.tb08837.x
更新日期:1999-12-01 00:00:00
abstract::Bacteria have the exquisite ability to maintain a precise diameter, cell length, and shape. The dimensions of bacteria size and shape are a classical metric in the distinction of bacterial species. Much of what we know about the particular morphology of any given species is the result of investigations of planktonic c...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1111/1574-6968.12602
更新日期:2014-11-01 00:00:00
abstract::Several beta-galactosidase fusion proteins have been constructed containing the entire VP1 protein from foot-and-mouth disease virus (FMDV) [Corchero et al. (1996) J. Biotechnol. in press]. The antigenicity of the major immunodominant site A (13 amino acids in length) within the VP1 protein has been studied in competi...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08559.x
更新日期:1996-11-15 00:00:00
abstract::Sera, from 17 patients with diarrhoea or haemolytic uraemic syndrome, and six healthy adults, were tested for neutralisation of Vero cytotoxins (VT). For all 17 patients there was evidence of infection with Escherichia coli O157. Sera from two controls but from none of the patients neutralised VT1, although two patien...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1994.tb06652.x
更新日期:1994-01-15 00:00:00