Publications by authors named "Emillie M F Passfield"

Article Synopsis
  • The study mapped the metabolite profiles of 34 isolates from 13 different species, identifying a total of 56 secondary metabolites produced by these organisms.
  • Notably, only specific species were found to produce particular toxins, such as Pacific-ciguatoxins and maitotoxins, with ubiquitous production of 44-methylgambierone across all isolates.
  • The findings suggest that while the isolates produce known ciguatoxins (CTXs) or maitotoxins (MTXs), they do not produce both, and point to the presence of uncharacterized compounds that warrant further investigation.
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Temperatures and temperature anomalies have been increasing in the sub-tropical regions of Aotearoa New Zealand and these changes may impact on harmful algal bloom (HAB) events. Benthic and epiphytic dinoflagellates, particularly the toxin producers, are the focus of this study as it is predicted that under future climate conditions they may produce more toxins or marine animals may become more susceptible to them. The results of past expeditions to Rangitāhua Kermadec Islands and sampling trips to Northland, Aotearoa New Zealand, are summarised and the results of the most recent trips to both regions are presented.

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