Regulation of beta-glucosidase biosynthesis in Aspergillus nidulans.


:beta-Glucosidase in Aspergillus nidulans was found to be both intracellular and extracellular. The intracellular beta-glucosidase was synthesized after the exhaustion of carbon source in the medium. The extracellular enzyme appeared with autolysis of the mycelium. Biosynthesis of beta-glucosidase was not induced by various carbohydrates but repressed to varying extents in the presence of glucose, glycerol, and 2-deoxyglucose. This repression was not relieved by addition of cAMP. The repression was relieved much more by mutations in the creA gene than by one in the creC gene. Thus, beta-glucosidase synthesis in A. nidulans is subject to carbon catabolite repression.


FEMS Microbiol Lett


Lee J,Kwon KS,Hah YC




Has Abstract


1996-01-01 00:00:00














  • ABC transporters in antibiotic-producing actinomycetes.

    abstract::Many antibiotic-producing actinomycetes possess at least one ABC (ATP-binding cassette) transporter which forms part of the antibiotic biosynthetic pathway and in most cases confers resistance to the drug in an heterologous host. Three types of antibiotic ABC transporters have been so far described in producer organis...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章,评审


    authors: Méndez C,Salas JA

    更新日期:1998-01-01 00:00:00

  • Evidence that OmcB and OmpB of Geobacter sulfurreducens are outer membrane surface proteins.

    abstract::The c-type cytochrome (OmcB) and the multicopper protein (OmpB) required for Fe(III) oxide reduction by Geobacter sulfurreducens were predicted previously to be outer membrane proteins, but it is not clear whether they are positioned in a manner that permits the interaction with Fe(III). Treatment of whole cells with ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Qian X,Reguera G,Mester T,Lovley DR

    更新日期:2007-12-01 00:00:00

  • Hydroxyurea inhibits intracellular Toxoplasma gondii multiplication.

    abstract::Tachyzoites of Toxoplasma gondii multiply within the parasitophorous vacuole (PV) until the lysis of the host cell. This study was undertaken to evaluate the effect of hydroxyurea (a specific drug that arrests cell division at G1/S phase) on the multiplication of T. gondii tachyzoites in infected Vero cells. Infected ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: de Melo EJ,Mayerhoffer RO,de Souza W

    更新日期:2000-04-01 00:00:00

  • Catalytic and structural properties of IRT-21 beta-lactamase (TEM-77) from a co-amoxiclav-resistant Proteus mirabilis isolate.

    abstract::Proteus mirabilis strain MAG1, a clinical isolate that is resistant to broad-spectrum penicillins and co-amoxiclav, produces inhibitor-resistant TEM (IRT)-21, a novel mutant of TEM beta-lactamase. This enzyme has a pI of 5.2 and is derived from the bla(TEM-1a) gene ancestor. It contains two major amino acid substituti...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Mammeri H,Gilly L,Laurans G,Vedel G,Eb F,Paul G

    更新日期:2001-12-18 00:00:00

  • 7-fluoroindole as an antivirulence compound against Pseudomonas aeruginosa.

    abstract::The emergence of antibiotic resistance has necessitated new therapeutic approaches for combating persistent bacterial infection. An alternative approach is regulation of bacterial virulence instead of growth suppression, which can readily lead to drug resistance. The virulence of the opportunistic human pathogen Pseud...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Lee JH,Kim YG,Cho MH,Kim JA,Lee J

    更新日期:2012-04-01 00:00:00

  • Plasmid-encoded gamma-hexachlorocyclohexane degradation genes and insertion sequences in Sphingobium francense (ex-Sphingomonas paucimobilis Sp+).

    abstract::The lin genes encode the gamma-hexachlorocyclohexane (gamma-HCH or lindane) catabolic pathway in lindane-degrading strains. The location and stability of these genes have been explored in the lindane-degrading Sphingobium francense strain Sp+, and in two non-lindane-degrading mutants (Sp1- and Sp2-). The lin genes, li...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Cérémonie H,Boubakri H,Mavingui P,Simonet P,Vogel TM

    更新日期:2006-04-01 00:00:00

  • Transposition of Tn4560 of Streptomyces fradiae in Mycobacterium smegmatis.

    abstract::Tn4560 (8.6 kb) was derived from Tn4556, a Tn3-like element from Streptomyces fradiae. It contains a viomycin resistance gene that has not been used previously for selection in mycobacteria. Tn4560, cloned in a Streptomyces plasmid, was introduced by electroporation into Mycobacterium smegmatis mc(2)155. Tn4560 transp...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Bhatt A,Stewart GR,Kieser T

    更新日期:2002-01-10 00:00:00

  • Molecular biology of Bacillus subtilis cytochromes.

    abstract::Bacillus subtilis cells must have cytochromes for growth and can synthesize cytochromes of a-, b-, c-, d-, and o-types. After a long lag, our knowledge of the structure, genetics and specific role for these cytochromes is now growing exponentially as the result of recent research. This progress is reviewed here and in...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章,评审


    authors: von Wachenfeldt C,Hederstedt L

    更新日期:1992-12-15 00:00:00

  • A new cis-encoded sRNA, BsrH, regulating the expression of hemH gene in Brucella abortus 2308.

    abstract::A total of 129 sRNA candidates were identified in Brucella abortus 2308 in our previous work, and one candidate with potential to regulate expression of hemH gene was further analyzed in this study. We found that the novel sRNA can inhibit the expression of hemH and called it BsrH (Brucella sRNA regulating HemH). The ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Peng X,Dong H,Wu Q

    更新日期:2015-01-01 00:00:00

  • Distinct amino acids of the Oenococcus oeni small heat shock protein Lo18 are essential for damaged protein protection and membrane stabilization.

    abstract::The small heat shock protein (smHsp) Lo18 from lactic acid bacteria Oenococcus oeni reduces in vitro thermal aggregation of proteins and modulates the membrane fluidity of native liposomes. An absence of information relating to the way in which the smHsp demonstrates a stabilizing effect for both proteins and membrane...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Weidmann S,Rieu A,Rega M,Coucheney F,Guzzo J

    更新日期:2010-08-01 00:00:00

  • Secretory production of Arthrobacter levan fructotransferase from recombinant Escherichia coli.

    abstract::Levan fructotransferase (LFTase) from Arthrobacter ureafaciens K2032 was expressed with N-terminal fusion of a LacZ-derived secretion motif (TMITNSSSVP) using the lac promoter system in recombinant Escherichia coli JM109 [pUDF-A81]. In flask cultures, recombinant enzyme activity was detected in culture media, and sequ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Lee J,Saraswat V,Koh I,Song KB,Park YH,Rhee SK

    更新日期:2001-02-20 00:00:00

  • Thermostability of ancestral mutants of Caldococcus noboribetus isocitrate dehydrogenase.

    abstract::We constructed mutant genes of Caldococcus noboribetus isocitrate dehydrogenase containing ancestral amino acid residues that were inferred using the maximal likelihood method and a composite phylogenetic tree of isocitrate dehydrogenase and 3-isopropylmalate dehydrogenase. The mutant genes were expressed in Escherich...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Iwabata H,Watanabe K,Ohkuri T,Yokobori S,Yamagishi A

    更新日期:2005-02-15 00:00:00

  • Growth of Salmonella enteritidis and S. pullorum on Hektoen agar and the expression of lipopolysaccharide or flagella.

    abstract::Growth of strains of Salmonella enteritidis and Salmonella pullorum on Hektoen agar has been reported to influence the expression of long-chain lipopolysaccharide and motility respectively. In this study we used a panel of strains of S. enteritidis and S. pullorum to investigate these phenomena. Culture on Hektoen aga...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Chart H,Rowe B

    更新日期:1998-06-15 00:00:00

  • Characterization of monoclonal antibodies for rapid identification of Actinomyces naeslundii in clinical samples.

    abstract::The purpose of this study was to generate highly specific serological reagents for the quantitative identification of Actinomyces naeslundii in clinical samples, in particular dental plaque. Balb/c mice were immunized with pasteurized human A. naeslundii strains representing different genospecies and serotypes. Ten hy...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Thurnheer T,Guggenheim B,Gmür R

    更新日期:1997-05-15 00:00:00

  • Initial degradation of dimethylphthalate by esterases from Bacillus species.

    abstract::Dimethylphthalate (DMP), one of the phthalate esters, is used in the manufacture of plasticizers, insect repellents, and synthetic fibers, and contributes to environmental pollution. In the present study, we report a novel bacterium belonging to the Bacillus sp., which has the ability to utilize DMP as the sole source...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Niazi JH,Prasad DT,Karegoudar TB

    更新日期:2001-03-15 00:00:00

  • The pel1 mutant of Saccharomyces cerevisiae is deficient in cardiolipin and does not survive the disruption of the CHO1 gene encoding phosphatidylserine synthase.

    abstract::Cells of the pel1 mutant of Saccharomyces cerevisiae were found to contain an extremely low content of cardiolipin, a decreased level of phosphatidylcholine and an increased level of phosphatidylinositol. Disruption of the PEL1 gene in cells containing a null mutation in the CHO1 gene was lethal. Despite its putative ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Janitor M,Obernauerová M,Kohlwein SD,Subík J

    更新日期:1996-06-15 00:00:00

  • Genetic and antigenic comparison of Streptococcus mutans fructosyltransferase and glucan-binding protein.

    abstract::The genes for fructosyltransferase (ftf) and glucan-binding protein (gbp) of Streptococcus mutans strain Ingbritt have been cloned in E. coli using bacteriophage and plasmid vectors. A single ftf gene appears to be responsible for the appearance of several FTF of different electrophoretic mobilities. Despite the fact ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Aduse-Opoku J,Gilpin ML,Russell RR

    更新日期:1989-06-01 00:00:00

  • Increased expression of biodegradative threonine dehydratase of Escherichia coli by DNA gyrase inhibitors.

    abstract::The synthesis of inducible biodegradative threonine dehydratase of Escherichia coli increased several-fold in the presence of the DNA gyrase inhibitors, nalidixic acid and coumermycin. Temperature-sensitive gyrB mutants expressed higher levels of dehydratase as compared to an isogenic gyrB+ strain. Immunoblotting expe...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Sumantran VN,Tranguch AJ,Datta P

    更新日期:1989-11-01 00:00:00

  • Purification and characterization of a putative virulence factor, serine protease, from Vibrio parahaemolyticus.

    abstract::A protease (protease A) was successfully purified from the extracellular proteins of Vibrio parahaemolyticus no. 93, a clinical strain carrying neither tdh nor trh genes, using phenyl-Sepharose CL-4B hydrophobic interaction chromatography. The molecular mass of protease A was 43 kDa using gel filtration, which was in ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Lee CY,Cheng MF,Yu MS,Pan MJ

    更新日期:2002-03-19 00:00:00

  • Typing Tuber melanosporum and Chinese black truffle species by molecular markers.

    abstract::Morphologically similar species such as Chinese black truffles and Tuber melanosporum were typed by restriction length polymorphism of internal transcribed spacers. This analysis together with sequence comparison revealed the presence of high genetic variability among fruit bodies collected in China. Selection of prim...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Paolocci F,Rubini A,Granetti B,Arcioni S

    更新日期:1997-08-15 00:00:00

  • Comparison of SEM and VPSEM imaging techniques with respect to Streptococcus mutans biofilm topography.

    abstract::The study compared images of mature Streptococcus mutans biofilms captured at increasing magnification to determine which microscopy method is most acceptable for imaging the biofilm topography and the extracellular polymeric substance (EPS). In vitro S. mutans biofilms were imaged using (1) scanning electron microsco...

    journal_title:FEMS microbiology letters

    pub_type: 信件


    authors: Weber K,Delben J,Bromage TG,Duarte S

    更新日期:2014-01-01 00:00:00

  • Chemical and electroporated transformation of Edwardsiella ictaluri using three different plasmids.

    abstract::Transfer of DNA by conjugation has been the method generally used for genetic manipulation of Edwardsiella ictaluri because, previously, attempts to transform E. ictaluri by the uptake of naked DNA have apparently failed. We report here the successful transformation of seven strains of E. ictaluri using electroporatio...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Russo R,Panangala VS,Wood RR,Klesius PH

    更新日期:2009-09-01 00:00:00

  • Growth and adhesion of Enterococcus faecium L-forms.

    abstract::Comparisons of growth and surface colonisation of Enterococcus faecium L-forms and their cell-walled forms were undertaken to produce information about their ability to form sessile cells. The growth of L-forms in liquid culture was slower than that of the parent. This was reflected in their longer lag phase and slowe...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Jass J,Phillips LE,Allan EJ,Costerton JW,Lappin-Scott HM

    更新日期:1994-01-15 00:00:00

  • Conformational plasticity of molecular chaperones involved in periplasmic and outer membrane protein folding.

    abstract::How proteins reach their native conformation and location has been a major question of biology during the last 50 years. To counterbalance protein misfolding and the accumulation of aggregation products, a complex network of chaperones and proteases takes care of protein quality control in the cell. Such a chaperone n...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章,评审


    authors: Mas G,Hiller S

    更新日期:2018-07-01 00:00:00

  • Identification of Pantoea ananatis gene encoding membrane pyrroloquinoline quinone (PQQ)-dependent glucose dehydrogenase and pqqABCDEF operon essential for PQQ biosynthesis.

    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 apoenzyme from Escherichia coli and a putative pyrroloquinoline quinone (PQQ) biosynthetic o...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Andreeva IG,Golubeva LI,Kuvaeva TM,Gak ER,Katashkina JI,Mashko SV

    更新日期:2011-05-01 00:00:00

  • Stable, temperature-sensitive recombinant strain of Mycobacterium smegmatis generated through the substitution of a psychrophilic ligA gene.

    abstract::A synthetic version of the ligA gene encoding the NAD-dependent DNA ligase from the Arctic bacterium Pseudoalteromonas haloplanktis was substituted for its homolog in the chromosome of Mycobacterium smegmatis. The resulting recombinant strain grew identically to the parent strain at permissive temperatures but failed ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Pinto CT,Nano FE

    更新日期:2015-09-01 00:00:00

  • How did cyanobacteria first embark on the path to becoming plastids?: lessons from protist symbioses.

    abstract::Symbioses between phototrophs and heterotrophs (a.k.a 'photosymbioses') are extremely common, and range from loose and temporary associations to obligate and highly specialized forms. In the history of life, the most transformative was the 'primary endosymbiosis,' wherein a cyanobacterium was engulfed by a eukaryote a...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章,评审


    authors: Gavelis GS,Gile GH

    更新日期:2018-10-01 00:00:00

  • Comparison of Mycoplasma agalactiae isolates by pulsed field gel electrophoresis, SDS-PAGE and immunoblotting.

    abstract::We have analyzed 81 isolates of Mycoplasma agalactiae from four different regions of Italy between 1990 and 1995 in order to identify antigenic differences through SDS-PAGE and Western blotting and chromosomal DNA restriction endonuclease cleavage pattern differences. Antigenic variability in M. agalactiae isolates wa...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Tola S,Idini G,Manunta D,Casciano I,Rocchigiani AM,Angioi A,Leori G

    更新日期:1996-10-01 00:00:00

  • Diversity and distribution of hemerythrin-like proteins in prokaryotes.

    abstract::Hemerythrins are oxygen-binding proteins found in the body fluids and tissues of certain invertebrates. Oxygen is bound at a nonheme iron centre consisting of two oxo-bridged iron atoms bound to a characteristic set of conserved histidine: aspartate and glutamate residues with the motifs H-HxxxE-HxxxH-HxxxxD. It has r...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章,评审


    authors: French CE,Bell JM,Ward FB

    更新日期:2008-02-01 00:00:00

  • Towards biobased industry: acetate as a promising feedstock to enhance the potential of microbial cell factories.

    abstract::A broad range of different chemical and pharmaceutical compounds have been produced in microbial cell factories. To compete with traditional crude oil based production processes, the use of complex alternative raw materials such as lignocellulosic biomass, waste streams and utilization of CO2 in gas fermentations has ...

    journal_title:FEMS microbiology letters

    pub_type: 杂志文章


    authors: Novak K,Pflügl S

    更新日期:2018-10-01 00:00:00