Marine Toxins and Detection Methods

Genomic detection of domoic acid biosynthesis uncovers expanded toxigenic diversity across Pseudo-nitzschia diatoms

The paper identifies genomic features of domoic acid biosynthesis in Pseudo-nitzschia diatoms, revealing expanded toxigenic diversity and environmental expression patterns.

Hydrodynamics structure the physiological trajectory and bloom dynamics of a harmful diatom species across neighboring coastal ecosystems

This study shows that hydrodynamics, specifically dilution and advection, significantly influence the physiological trajectory and bloom dynamics of the harmful diatom Pseudo-nitzschia australis across coastal ecosystems.

Chaotic dynamics in blooms of Ostreopsis cf. ovata modelled from environmental time series using ordinary differential equations systems

Paralytic Shellfish Toxin production in Alexandrium minutum (Dinophyceae): insights from omics integration using toxigenic and non-toxigenic recombinant progeny

The paper compares toxic and non-toxic strains of Alexandrium minutum using metabolomic and transcriptomic data to identify genes and intermediates involved in paralytic shellfish toxin biosynthesis.

Universal rapid RNA-based quantification of toxigenic Alexandrium species (Dinophyceae) using quantitative recombinase polymerase amplification

This paper develops a rapid qRT-RPA assay for detecting toxigenic Alexandrium species by targeting sxtA4 transcripts, achieving low detection limits and fast runtime for early warning monitoring.

A catastrophic marine mortality event caused by a complex algal bloom including the novel brevetoxin producer, Karenia cristata (Dinophyceae)

The paper identifies a novel brevetoxin-producing Karenia cristata causing a large marine mortality event in South Australia, with distinct toxin profiles compared to K. brevis.

Fear of grazing rivals the toxin induction effect of nitrogen enrichment in marine harmful algae- a meta-analysis

This study compares the effects of nitrogen enrichment and grazing risk on phycotoxin induction in marine harmful algae using a meta-analysis of 37 studies.

New markers for qPCR detection of the dinoflagellate Alexandrium catenella in Chile

The paper develops TaqMan markers for qPCR detection of Alexandrium catenella in Chile to enable early detection in monitoring programs.

Recovering sedimentary ancient DNA of harmful dinoflagellates off Eastern Tasmania, Australia, over the last 9,000 years

This study uses sedimentary ancient DNA analysis to track harmful dinoflagellates in Tasmanian coastal sediments over 9,000 years, revealing historical presence and recent increases in certain species.

Molecular tools for phytoplankton monitoring samples

This paper evaluates DNA extraction methods and polymerases for phytoplankton monitoring, finding that Direct PCR master mix is the most effective for routine use.