Abstract：
:The cyclohexadepsipeptide beauvericin (BEA) is a mycotoxin produced by the fungus Beauveria bassiana (Bals.). Using ELISA, different accessions of B. bassiana, belonging to distinct genetic groups, were analyzed to determine their variability in BEA production. The cytotoxic effect of pure mycotoxins and crude extracts was also tested on insect cell lines SF-9 and SF-21. The results showed that BEA production was significantly different between all strains. Bb 9024 exhibited the highest levels (98.56 mg/l), while Bb 9001 the lowest (15.66 mg/l). Statistical difference was found when BEA CC(50) values (2.81 and 6.94 μM) were compared with those values from others mycotoxins (4.23-11.95 μM). Although no correlation has been observed between beauvericin production and phylogenetic grouping, the results suggest a comprehensible involvement of these metabolites during the infection process. The biological evaluation of metabolites produce by entomopathogenic fungi provides better criteria to design more effective formulations for pest management.
journal_name
Curr Microbioljournal_title
Current microbiologyauthors
Valencia JW,Gaitán Bustamante AL,Jiménez AV,Grossi-de-Sá MFdoi
10.1007/s00284-011-9977-2subject
Has Abstractpub_date
2011-09-01 00:00:00pages
306-12issue
3eissn
0343-8651issn
1432-0991journal_volume
63pub_type
杂志文章abstract：:The great increase in the abundance and phylogenetic diversity of Flavobacterium spp. within a few hundred meters downstream of the discharge site of the Westerhöfer Bach, a hardwater rivulet, raised the question whether adjacent soil may serve as a reservoir of bacteria not detected in discharge water. To address thi...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-008-9323-5
更新日期：2009-05-01 00:00:00
abstract：:Polyamines are well-conserved, multifunctional polycations that contribute to a number of processes in the cells such as cell cycle, apoptosis, stress response, and gene expression. Therefore, polyamine levels should be kept under strict regulation by specific polyamine transporters and polyamine synthases. In this st...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-017-1241-y
更新日期：2017-06-01 00:00:00
abstract：:With human saliva as an inoculum, microcosm dental plaques were grown on dental amalgam in a constant-depth film fermentor (CDFF) in the presence (suc +ve) and absence (suc -ve) of sucrose. The biofilms were then exposed to 0.2% chlorhexidine gluconate (CHG) for 1, 5, or 60 min and the survivors enumerated. Suc +ve bi...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849900272
更新日期：1998-01-01 00:00:00
abstract：:It has been reported that treatment with methotrexate (MTX) induces intestinal bacterial translocation; however, the definitive evidence of intestinal bacterial translocation induced by MTX has been lacking. The aim of this study was to confirm the intestinal bacterial translocation caused by MTX and to evaluate the p...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-005-0177-9
更新日期：2006-01-01 00:00:00
abstract：:Lactobacilli are members of the normal mucosal microflora of most animals. Many isolates of Lactobacillus spp. are adherent to epithelial cells. In this study, using Lactobacillus acidophilus and L. agilis, we detected adherence in a pattern that suggested that the bacteria were binding to extracellular matrix protein...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002840010107
更新日期：2000-08-01 00:00:00
abstract：:Human growth hormone (hGH) is the major and important hormone component of human being. At present, hGH for clinical uses is mostly produced in Escherichia coli, which requires costly denaturation and refolding to recover functionality. To obtain long-term bioactive hormone, we used hGH as a foreign gene and construct...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-013-0500-9
更新日期：2014-04-01 00:00:00
abstract：:Antimicrobial-resistant Klebsiella pneumoniae represent a global public health concern. K. pneumoniae strains isolated during 2010 and 2014-2016 within a single hospital of Molise Region, Central Italy, were analyzed testing antimicrobial susceptibility, clonality by pulsed-field gel electrophoresis (PFGE) and random ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-018-1475-3
更新日期：2018-08-01 00:00:00
abstract：:During periods of drainage, both water stress and oxygen can cause damage to indigenous methanogens. In the present study, we evaluated the tolerance of seven methanogenic strains (Methanobrevibacter arboriphilicus, Methanobacterium formicicum, Methanococcus vannielii, Methanospirillum hungatei, Methanoculleus olentan...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-007-9059-7
更新日期：2008-03-01 00:00:00
abstract：:A novel thermostable phytase gene was cloned from Aspergillus fumigatus WY-2. It was 1459 bp in size and encoded a polypeptide of 465 amino acids. The gene was expressed in Pichia pastoris GS115 as an extracellular enzyme. The expressed enzyme was purified to homogeneity and biochemically characterized. The purified e...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-006-0613-5
更新日期：2007-07-01 00:00:00
abstract：:Together with the worldwide Washoku (traditional Japanese foods and drinks) boom, interest in sake, a traditional Japanese alcoholic drink, is increasing around the world. There are few scientific analyses and studies on the production of sake or the final product itself. We show the diversity of bacterial contaminant...
journal_title：Current microbiology
pub_type： 杂志文章,评审
doi：10.1007/s00284-019-01718-4
更新日期：2020-04-01 00:00:00
abstract：:The chromosomal DNA of a variety of legionellae, including clinical, environmental, and plasmid-containing strains, was examined for evidence of Dam-like methylation. It was found that Dam-like methylation was present in all the strains examined regardless of their origin or plasmid content. ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849900011
更新日期：1996-02-01 00:00:00
abstract：:Yarrowia lipolytica is a dimorphic fungus that secretes either an acidic or an alkaline protease depending on the environmental pH. Previous results have indicated that secretion of the alkaline protease is under control of the pH signaling Pal/Rim pathway originally described in Aspergillus nidulans. Several Y. lipol...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-005-0070-6
更新日期：2006-07-01 00:00:00
abstract：:Porcine parvovirus (PPV) can cause reproductive failure in swine, resulting in economic losses to the industry. Antiviral effects of diammonium glycyrrhizinate (DG) have been reported on several animal viruses; however, to date it has yet to be tested on PPV. In this study, the antiviral activity of DG on swine testis...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-014-0540-9
更新日期：2014-07-01 00:00:00
abstract：:One hundred fifty-five isolates of Bipolaris sorokiniana of wheat were studied for their morphopathological characterization. These isolates were grouped in five categories--black, brown/dull black, gray cottony growth, dull white/greenish black, and white--on the basis of their growth pattern. The frequency of the bl...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-007-0035-z
更新日期：2007-08-01 00:00:00
abstract：:Biofilm-forming ability is well established as an important virulence factor. However, there are no studies available regarding biofilm formation of Salmonella Typhimurium 1,4,[5],12:i:-, the new pandemic serovar in Europe. To address this problem, biofilm expression by Salmonella 1,4,[5],12:i:- was evaluated using 13...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-014-0523-x
更新日期：2014-05-01 00:00:00
abstract：:An alkaline phosphatase (phoA) gene from Zymomonas mobilis was isolated in Escherichia coli CC118 by use of the plasmid Bluescript KS+. The origin of the 6.4-kb DNA fragment in pZAP1 from the chromosome of Z. mobilis was confirmed by Southern blotting and hybridization studies. The Z. mobilis phoA gene was localized a...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/BF01575864
更新日期：1992-11-01 00:00:00
abstract：:Rep22 is the replication region of the lactococcal theta replicating pUCL22 plasmid. The copy number of Rep22-based plasmids in Lactococcus was determined by using a chromosomal DNA fragment from Lactococcus lactis subsp. lactis MMS368 as reference. Segregational behavior appeared to be linked to copy number and there...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/BF00294521
更新日期：1995-01-01 00:00:00
abstract：:Spontaneous white mutants from sectors of Streptomyces hygroscopicus 111-81 were isolated. The comparison of morphological, cultural, and biochemical properties of the mutants and ancestor showed the differences in colors of aerial, substrate mycelia, and sporulation. Changes in resistance to antibiotics and sensitivi...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-008-9165-1
更新日期：2008-08-01 00:00:00
abstract：:We report the in vitro phytopathogen suppression activity of siderophoregenic preparations of Alcaligenes feacalis vis-à-vis the oraganochlorine fungicide, bavistin. Siderophore-rich culture broth, siderophore-rich supernatant, and purified siderophore preparation exerted antifungal activity against Aspergillus niger ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-008-9264-z
更新日期：2009-01-01 00:00:00
abstract：:The abundance and diversity of chemotactic heterotrophic bacteria associated with Arctic cyanobacteria was determined. The viable numbers ranged between 10(4) and 10(6) cell g(-1) cyanobacterial biomass. A total of 112 morphotypes, representing 22 phylotypes based on their 16S rRNA sequence similarity were isolated fr...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-012-0243-z
更新日期：2013-01-01 00:00:00
abstract：:In laboratory cultures of ice nucleation-active (Ice+) Erwinia herbicola isolates, it has been difficult to achieve high-level expression of ice nuclei, especially nuclei active at temperatures warmer than -5 degrees C (i.e., type 1 ice nuclei). Here we demonstrate that starvation for phosphate and exposure to low tem...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849900325
更新日期：1998-06-01 00:00:00
abstract：:Cosubstrates fermentation is such an effective strategy for increasing subject metabolic products that it could be available and studied in propionic acid production, using glycerol and glucose as carbon resources. The effects of glycerol, glucose, and their mixtures on the propionic acid production by Propionibacteri...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-010-9683-5
更新日期：2011-01-01 00:00:00
abstract：:Previously we isolated six actinomycetes strains, 9-4, 10-1, 10-2, 10-3, 10-6, and 21-4, that produce phospholipase D (PLD) with high transphosphatidylation activity. In this study, we identified these strains, and the PLD activities were compared with those of reference strains. 16S rDNA sequences and DNA-DNA hybridi...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-009-9551-3
更新日期：2010-05-01 00:00:00
abstract：:Rhesus monkey TRIM5α (TRIM5α(rh)), a member of the tripartite motif (TRIM) family, was identified as the main restriction factor responsible for resistance of old world monkey cells to HIV-1 infection. However, the precise mechanism of HIV-1 infection inhibition by TRIM5α remains elusive and appears to be related to s...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-011-0009-z
更新日期：2011-12-01 00:00:00
abstract：:The adhesive property to the intestinal mucin of Bifidobacterium lactis LKM512, B. longum, B. breve, B. bifidum, B. adolescentis, B. infantis, Bacteroides vulgatus, Bacteroides distasonis, Eubacterium aerofaciens, Clostridium perfringens, Escherichia coli, and Lactobacillus acidophilus were examined. Adhesive rate of ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-001-0087-4
更新日期：2002-03-01 00:00:00
abstract：:In order to develop an efficient system for deleting genomic segment in Agrobacterium tumefaciens to analyze gene functions and construct marker gene-free recombinant strains, a Cre recombinase expression plasmid was constructed by placing its encoding gene under the control of Ptet promoter and cloning into the plasm...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-015-0977-5
更新日期：2016-04-01 00:00:00
abstract：:The original version of this article unfortunately contained a mistake in the provided KEMB accession number. ...
journal_title：Current microbiology
pub_type： 杂志文章,已发布勘误
doi：10.1007/s00284-018-1592-z
更新日期：2019-01-01 00:00:00
abstract：:Minimal inhibitory concentrations (MICs) of five antibiotics namely amikacin, gentamicin, tetracycline, ciprofloxacin, and nitrofurantoin for pork isolates of Yersinia enterocolitica increased two- to eightfold after bacteria were grown in the presence of 5 mm arsenite. For Y. enterocolitica isolates obtained from was...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002840010277
更新日期：2001-08-01 00:00:00
abstract：:A gene, phoI, coding for a phosphatase from Enterobacter sp. 4 was cloned in Escherichia coli and sequenced. Analysis of the sequence revealed one open reading frame (ORF) that encodes a 269-amino acid protein with a calculated molecular mass of 29 kDa. PhoI belongs to family B acid phosphatase and exhibits 49.4% iden...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-005-4467-z
更新日期：2006-04-01 00:00:00
abstract：:Butterfly stain, common in Chilean tepa (Laureliopsis philippiana [Looser] Schodde) trees, appears in cross-section of the stem as a series of partially overlapping orange-brown arcs that in early stages resembles a butterfly. Bacterial isolates from stained tepa wood samples cultured under aerobic and anaerobic condi...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849910016
更新日期：2000-02-01 00:00:00
