Antifungal and antibacterial activity of 3-alkylpyridinium polymeric analogs of marine toxins

Ana Zovko, Maja Vaukner Gabric, Kristina Sepcic, Franc Pohleven, Domen Jaklic, Nina Gunde-Cimerman, Zhibao Lu, RuAngelie Edrada-Ebel, Wael E Houssen, Ines Mancini, Andrea Defant, Marcel Jaspars, Tom Turk

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18 Citations (Scopus)


Analogs of marine sponge-derived 3-alkylpyridinium compounds (3-APS) were synthesized and screened for possible antibacterial and antifungal activities. They were found to exhibit moderate antibacterial activity. Antifungal potential was tested on pathogenic fungus Candida albicans, baker's yeast Saccharomyces cerevisiae and hypersaline species Wallemia sebi. S. cerevisiae was the most susceptible to the action of selected 3-APS. Inhibitory effects on fungal growth were also studied on two wood-rotting fungi, brown-rot fungus Gloeophyllum trabeum and a white-rot fungus Trametes versicolor. The former showed a higher susceptibility to the action of 3-APS. The highest antifungal potential was observed with the poly-1,3-dodecyl pyridinium chloride (APS12-3, 7), while a complete loss of activity was noticed with the poly-1,3-butyl pyridinium chloride (APS3, 1), suggesting that this activity may closely correlate to the length of their alkyl chains. Based on our results, synthetic APS12-3 is a good candidate to be used as biocide or wood preservative against wood-rotting fungi. (C) 2012 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)71-77
Number of pages7
JournalInternational Biodeterioration & Biodegradation
Publication statusPublished - Mar 2012


  • synthetic analogs
  • alkylpyridinium compounds
  • microwave-assisted polymerization
  • antifungal activity
  • antibacterial activity
  • wood-decay fungi


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