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Transcriptional memory drives accelerated re-activation of several biosynthetic gene clusters in Aspergillus nidulans.
Microbiol Res
February 2025
Institute of Microbial Genetics, Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln a.d. Donau 3430, Austria; Research Platform Bioactive Microbial Metabolites (BiMM), Konrad Lorenz Strasse 24, Tulln a.d. Donau 3430, Austria. Electronic address:
Organisms are repeatedly exposed to fluctuating environmental and nutritional conditions. Transcriptional memory has been shown to be a mechanism to cope with these fluctuations because it increases the speed and the magnitude of the cellular response to a certain re-occurring condition and therefore optimizes adaptation and fitness in a given environment. We found that genes coding for sterigmatocystin (ST) production in Aspergillus nidulans are activated stronger when cells are repeatedly exposed to nutrient starvation, compared to cells that experience this condition for the first time.
View Article and Find Full Text PDFCorrection to "FAM Tag Size Separation-Based Capture-Systematic Evolution of Ligands by Exponential Enrichment for Sterigmatocystin-Binding Aptamers with High Specificity".
Anal Chem
February 2024
Academy of National Food and Strategic Reserves Administration, Beijing 100037, China.
Correction: Graphene oxide-mediated fluorescence turn-on GO-FAM-FRET aptasensor for detection of sterigmatocystin.
Anal Methods
December 2023
Academy of Scientific and Innovative Research (AcSIR), Ghaziabad - 201002, India.
Correction for 'Graphene oxide-mediated fluorescence turn-on GO-FAM-FRET aptasensor for detection of sterigmatocystin' by Pravin Savata Gade , , 2022, , 3890-3897, DOI: https://doi.org/10.1039/D2AY01405J.
View Article and Find Full Text PDFCorrection to: Surface-imprinted β-cyclodextrin-functionalized carbon nitride nanosheets for fluorometric determination of sterigmatocystin.
Mikrochim Acta
September 2021
Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, 211198, China.
Tea: Transfer of Mycotoxins from the Spiked Matrix into an Infusion.
Toxins (Basel)
June 2021
Federal Research Centre of Nutrition and Biotechnology, Ust'inskiy pr., 2/14, 109240 Moscow, Russia.
Recent surveys report the occurrence of and metabolites (aflatoxins (AFLs), ochratoxin A (OTA), cyclopiazonic and mycophenolic acids (MPA), sterigmatocystin (STC), citrinin), (trichothecenes, zearalenone (ZEA), fumonisins (FBs), enniatins (ENNs)) and (alternariol (AOH), its methyl ether (AME), tentoxin (TE), and tenuazonic acid (TNZ)) toxins in dry and herbal tea samples. Since tea is consumed in the form of infusion, correct risk assessment needs evaluation of mycotoxins' transfer rates. We have studied the transfer of AFLs, OTA, STC, deoxynivalenol (DON), ZEA, FBs, T-2, and HT-2 toxins, AOH, AME, TE, ENN A and B, beauvericin (BEA), and MPA from the spiked green tea matrix into an infusion under variation of preparation time and water characteristics (total dissolved solids (TDS) and pH).
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