A survey of Penicillium albocoremium was undertaken to identify potential taxonomic metabolite markers. One major and four minor metabolites were consistently produced by the 19 strains surveyed on three different media. Following purification and spectral studies, the metabolites were identified as the known protein farnesyl transferase inhibitors andrastin A (1) and barceloneic acid A (2) along with barceloneic acid B (3), barceloneic lactone (4), and methyl barceloneate (5). These compounds are significant taxonomic markers for P. albocoremium; moreover this is the first report of a methyl ester of a barceloneic acid being produced as a secondary metabolite. Tissue extracts created following pathogenicity trials involving P. albocoremium and Allium cepa confirmed the production of these five metabolites in planta. Barceloneic acid B was found to be biologically active against a P388 murine leukemia cell line.
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http://dx.doi.org/10.1017/s0953756205003734 | DOI Listing |
Perfusion
May 2020
2nd Department of Medicine, Cardiovascular Medicine, General University Hospital in Prague, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.
Simulation-based learning and hands-on learning are popular in medicine, particularly in areas where life-saving manoeuvres and team skills are required. Simulations can be provided in different environments: directly in hospitals (in situ), in dedicated facilities (simulation rooms) or, on occasion, at scientific meetings, thus taking advantage of the delegates' motivation. Simulation-based learning in extracorporeal life support is also increasingly relevant due to the inherent features of the often difficult and emergent decision-making, approaches and management involved, as well as to the challenging multidisciplinary teamwork.
View Article and Find Full Text PDFFront Microbiol
April 2020
Department of Agrobiotechnology (IFA-Tulln), Institute of Bioanalytics and Agro-Metabolomics, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria.
Low moisture content ready-to-eat foods vended in Nigerian markets could be pre-packaged or packaged at point of sale. These foods are widely and frequently consumed across Nigeria as quick foods. Despite their importance in the daily diets of Nigerians, a comprehensive study on the diversity of fungi, fungal metabolite production potential, and mycotoxin contamination in the foods has not yet been reported.
View Article and Find Full Text PDFAntibiotics (Basel)
September 2018
Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knöll-Institute, Beutenbergstraße 11a, 07745 Jena, Germany.
The chemical analysis of insect-associated Actinobacteria has attracted the interest of natural product chemists in the past years as bacterial-produced metabolites are sought to be crucial for sustaining and protecting the insect host. The objective of our study was to evaluate the phylogeny and bioprospecting of Actinobacteria associated with fungus-growing termites. We characterized 97 Actinobacteria from the gut, exoskeleton, and fungus garden (comb) of the fungus-growing termite and used two different bioassays to assess their general antimicrobial activity.
View Article and Find Full Text PDFJ Antibiot (Tokyo)
February 2015
School of Biotechnology, Yeungnam University, Gyeongsan, South Korea.
Mycol Res
November 2005
Centre for Microbial Biotechnology, Biocentrum-DTU, Technical University of Denmark, Kgs Lyngby, Denmark.
A survey of Penicillium albocoremium was undertaken to identify potential taxonomic metabolite markers. One major and four minor metabolites were consistently produced by the 19 strains surveyed on three different media. Following purification and spectral studies, the metabolites were identified as the known protein farnesyl transferase inhibitors andrastin A (1) and barceloneic acid A (2) along with barceloneic acid B (3), barceloneic lactone (4), and methyl barceloneate (5).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!