Evidence map›Paper›PMID 42545982›Full record

ArticlePloS one2026

Development of a quantitative PCR assay to detect Gambierdiscus holmesii, a ciguatoxin producing species from Australian waters.

Caroline Dornelles de Azevedo, Greta Gaiani, Matthew Tesoriero, Kirsty F Smith, Shauna A Murray

Abstract read
In one paragraph

Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Caroline Dornelles de AzevedoUniversity of Technology Sydney School of Life Sciences, Sydney, NSW, Australia.
Greta GaianiUniversity of Technology Sydney School of Life Sciences, Sydney, NSW, Australia.ORCID https://orcid.org/0000-0003-2219-8145
Matthew TesorieroUniversity of Technology Sydney School of Life Sciences, Sydney, NSW, Australia.
Kirsty F SmithCawthron Institute, Nelson, New Zealand.
Shauna A MurrayUniversity of Technology Sydney School of Life Sciences, Sydney, NSW, Australia.ORCID https://orcid.org/0000-0001-7096-1307

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A quantitative polymerase chain reaction (qPCR) assay was developed for the species-specific detection and quantification of Gambierdiscus holmesii, recently reported to produce known ciguatoxin (CTX) analogues in north Queensland. The assay was designed to target the ITS region and calibrated using synthetic gBlocks standards and cell-based standard curves to enable accurate quantification. The G. holmesii-specific qPCR assay demonstrated high specificity, efficiency, and sensitivity, with no cross-reactivity observed against closely related Gambierdiscus species. The assay was subsequently applied to environmental samples collected from Heron Island (Great Barrier Reef, Queensland), detecting G. holmesii in 5 out of 12 sites. This newly developed molecular tool enhances the capacity to monitor G. holmesii in the environment and supports improved surveillance of ciguatoxin-producing Gambierdiscus species in Australian waters, enabling earlier detection and more effective management of ciguatera poisoning risks to public health and fisheries.

Indexed as

CiguatoxinsDinoflagellidaPolymerase Chain ReactionAustraliaEnvironmental MonitoringSpecies SpecificityCiguatoxins

Identifiers

PMID42545982
PMCPMC13432126

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.