First report of microcystin-producing Fischerella sp. (Stigonematales, Cyanobacteria) in tropical Australia

Samuel Cirés, Carlos Alvarez-Roa, Susanna A.O. Wood, Jonathan Puddick, Virginia Loza, Kirsten Ruth Heimann

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

A polyphasic study of four Stigonematales cyanobacteria from tropical Australia (Queensland) revealed production of the hepatotoxins microcystins (MC-LR, MC-LA, MC-LF, MC-FR and demethyl-MC-LR) by Fischerella sp. NQAIF311 isolated from a seasonal creek. Total microcystin content reached 43 μg g-1 dry weight. Phylogeny demonstrated high sequence similarities for 16S rRNA (99%), mcyE (97%) and mcyD (95%) genes with microcystin-producing Fischerella sp. CENA161 from Brazil. This is the first report of a cyanotoxin-producing Stigonematal in Australia.

Original languageEnglish
Pages (from-to)62-66
Number of pages5
JournalToxicon
Volume88
DOIs
Publication statusPublished - 15 Sep 2014

Keywords

  • Benthic
  • Fischerella
  • Hepatotoxin
  • Microcystin
  • Stigonematales
  • Tropical

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