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ArticleMycopathologia2026

Environmental Detection of Candidozyma (Candida) auris in Surface Waters of the Gediz Delta, a Critical Coastal Wetland in Türkiye: Expanding One Health Surveillance Perspective.

Arzu Gursoy Ergen, Emre Keskin, Aysenur Akgun, Hilal Basak Erol, Gulce Edis, Isilay Celik, Banu Kaskatepe, Sidre Erganis, Elif Ayca Sahin, Dolunay Gülmez and 7 more

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

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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

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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

17 authors.

Arzu Gursoy ErgenDepartment of Zoology, Department of Biology, Faculty of Sciences, Ankara University, Ankara, Türkiye.
Emre KeskinEvolutionary Genetics Laboratory, Ankara University, Ankara, Türkiye.
Aysenur AkgunDepartment of Zoology, Department of Biology, Faculty of Sciences, Ankara University, Ankara, Türkiye.
Hilal Basak ErolDepartment of Pharmaceutical Microbiology, Faculty of Pharmacy, Ankara University, Ankara, Türkiye.
Gulce EdisEvolutionary Genetics Laboratory, Ankara University, Ankara, Türkiye.
Isilay CelikEvolutionary Genetics Laboratory, Ankara University, Ankara, Türkiye.
Banu KaskatepeDepartment of Pharmaceutical Microbiology, Faculty of Pharmacy, Ankara University, Ankara, Türkiye.
Sidre ErganisDepartment of Medical Microbiology, Faculty of Medicine, Gazi University, Ankara, Türkiye.
Elif Ayca SahinDepartment of Medical Microbiology, Faculty of Medicine, Gazi University, Ankara, Türkiye.
Dolunay GülmezMycology Unit, Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Türkiye.
Sevtap Arıkan AkdağlıMycology Unit, Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Türkiye.
Çağrı ErginDepartment of Medical Microbiology, Faculty of Medicine, Pamukkale University, Denizli, Türkiye.
Oya San KeskinDepartment of Biology, Nanosan Laboratory, Faculty of Polatlı Science and Literature, Ankara Hacı Bayram Veli University, Ankara, Türkiye.
Hakan YardımciDepartment of Microbiology, Faculty of Veterinary Medicine, Ankara University, Ankara, Türkiye.
Nuket SivriDepartment of Environmental Engineering, Faculty of Engineering, Istanbul University -Cerrahpaşa, Istanbul, Türkiye.
Gulsen AltugDepartment of Marine and Freshwater Resources Management, Department of Marine Biology, Faculty of Aquatic Sciences, Istanbul University, Istanbul, Türkiye.
Ayşe KalkanciDepartment of Medical Microbiology, Faculty of Medicine, Gazi University, Ankara, Türkiye. aysekalkanci@email.com.ORCID https://orcid.org/0000-0003-0961-7325

Funding

Türkiye Bilimsel ve Teknolojik Araştırma Kurumu 124S746
6 · The paper itself

Abstract

backgroundCandidozyma auris (syn. Candida auris) is an emerging multidrug-resistant yeast of growing clinical and environmental concern. Despite its increasing detection in healthcare settings worldwide, environmental evidence remains scarce. This study presents the first molecular detection of C. auris DNA in surface waters of Türkiye, within the Ramsar-protected Gediz Delta, as part of the national One Health Surveillance Framework.

methodsA total of 80 surface-water samples were collected from five wetland ecosystems Tuz Lake, Kulu Lake, Göksu Delta (Akgöl and Paradeniz Lagoons), Kızılırmak Delta, and Gediz Delta. Physicochemical parameters; temperature, pH, and salinity were recorded in situ using a multi parameter sensor. Environmental DNA was extracted from 2 L of 0.22 µm Sterivex-filtered water and analyzed via qPCR using C. auris-specific (CauF/CauR) and Candida-genus (CauRelF/CauRelR) primer sets. Yeast isolation was performed on CHROMagar™ Candida Plus, and identification was achieved by MALDI-TOF MS.

resultsC. auris DNA was detected in one sample (1.25%), specifically from the Gediz Delta (Sample No. 5651, 38.523° N, 26.892° E), with Ct values 33.8-37.2 confirmed by sequencing. Broader Candida genus signals were observed in 24% of samples. Culture-based analyses yielded no viable C. auris, but 15 yeast isolates were identified, mainly Pichia kudriavzevii (Candida krusei), C. albicans, and Nakaseomyces glabratus (Candida glabrata).

conclusionThe culture-negative yet qPCR-positive finding indicates that C. auris DNA likely persists in aquatic environments as non-viable or residual material. This finding provides early molecular evidence of environmental dissemination and underscores the need for viability assays, culture-based isolation, and metagenomic monitoring integrated within One Health surveillance programmes.

Indexed as

CandidaCandida aurisSaccharomycetalesWater MicrobiologyWetlandsDNA, FungalHydrogen-Ion ConcentrationReal-Time Polymerase Chain ReactionTemperatureDNA, FungalCandidozyma aurisEnvironmental DNAOne healthqPCRTürkiyeWetland ecosystems, Gediz Delta

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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.