Skip to content
DraconiticResearch
Search Sources API
182,469 studies31 sourcesUpdated 1 min ago
Peer-reviewedCC BY-NC-NDBMC microbiology

First report of culturable fungi associated with the Brazilian sharpnose shark (Rhizoprionodon lalandii) from southeastern Brazil.

  • Manoel M E Oliveira1
  • Gisela Lara da Costa2
  • Bruna Albuquerque de Souza2
  • Barbara de Oliveira Baptista3
  • Bruno Fernandes Barbosa2
  • Rachel Ann Hauser-Davis4
4 affiliations
  1. 1Fundação Oswaldo Cruz, Instituto Oswaldo Cruz,Laboratório de Taxonomia, Bioquímica E Bioprospecção de Fungos, Av. Brasil, 4.365, Manguinhos, Rio de Janeiro, 21040-360, Brazil. [email protected].
  2. 2Fundação Oswaldo Cruz, Instituto Oswaldo Cruz,Laboratório de Taxonomia, Bioquímica E Bioprospecção de Fungos, Av. Brasil, 4.365, Manguinhos, Rio de Janeiro, 21040-360, Brazil.
  3. 3Fundação Oswaldo Cruz, , Instituto Oswaldo Cruz, Laboratório de Pesquisa Em Malária, Av. Brasil, 4.365, Manguinhos, Rio de Janeiro, 21040-360, Brazil.
  4. 4Fundação Oswaldo Cruz, Instituto Oswaldo Cruz,Laboratório de Avaliação E Promoção da Saúde Ambiental, Av. Brasil, 4.365, Manguinhos, Rio de Janeiro, 21040-360, Brazil. [email protected].
Read full textPDFDOICite

Abstract

Aims

Climate change and other anthropogenic environmental changes may alter fungal distributions and ecological interactions, potentially facilitating the emergence or redistribution of opportunistic fungi in marine ecosystems. These shifts raise concerns regarding microbial contamination in seafood and the need for surveillance in marine organisms. Elasmobranchs, such as sharks and rays, are ecologically and economically important but remain understudied regarding fungal occurrence in wild populations. This study provides the first report of cultivable fungal taxa associated with the Brazilian sharpnose shark (Rhizoprionodon lalandii) from southeastern Brazil.Methods and results

Swabs from the mouth, gills, and cloaca were obtained from 22 specimens procured from artisanal fisheries in Cabo Frio, Rio de Janeiro, Brazil. Fungal occurrence varied among sampled anatomical sites and individuals, with several cloacal samples showing abundant growth under the culture conditions employed. Recovered isolates consisted primarily of members of the Candida parapsilosis species complex and Meyerozyma guilliermondii, alongside occasional detection of other yeast taxa including Rhodotorula mucilaginosa, Debaryomyces hansenii, Trichosporon japonicum, and Pichia terricola. Because fungal recovery relied on culture-based methods, ITS sequencing of representative colonies, and sampling restricted to external and cloacal tissues, the detected assemblage likely reflects predominant culturable taxa rather than total fungal diversity. Furthermore, implications for food safety, transmission pathways, or environmental contamination remain speculative and warrant targeted investigation.Conclusions

These findings expand current knowledge regarding fungi associated with R. lalandii and highlight the need for additional studies incorporating environmental sampling, edible tissue analyses, and broader fungal characterization approaches to better understand potential ecological and public health implications.

Related

  1. Impatiens lianchengensis (Balsaminaceae), a new species from southeastern China.
    Jiedong Lin, Junlong Li, Boheng Li +3
    PhytoKeysPeer-reviewedCC BYFull textMolecular biology & gene regulationEurope PMCPMC
  2. Tolerance to heavy metals of bacteria from Brazilian deep aquatic environments
    Agatha do Canto Shubeita, Caroline Menegotto-Silva, Rafela Wong Davi +3
    Archives of microbiologyPeer-reviewedCC BYFull textGeneral biochemistryEurope PMC
  3. Functional genomic analysis of Vreelandella zhaodongensis BS253: a new isolate from hypersaline lakes from Brazilian Pantanal
    William Lautert-Dutra, Amanda Pasinato Napp, Eduardo Alexandre Back Sivinski +3
    Archives of MicrobiologyPeer-reviewedCC BY 4.0Full text1 citedMolecular biology & gene regulationPMC
  4. Genomic and phenotypic characterization of a honey-derived Enterococcus faecium isolate from the Brazilian semiarid region
    Dayane da Silva Santos, Allyson Andrade Mendonça, Maria Cecília de Lima e Silva +5
    Molecular Biology ReportsPeer-reviewedCC BY 4.0Full textGeneral biochemistryPMC
  5. Hereditary Breast Cancer in a Brazilian Referral Cohort: Germline Diversity and Genotype–Phenotype Associations
    André Luiz Cicilini, Patrick Vinicius Cerqueira Batista, Sandrine M. Caputo +21
    International Journal of Molecular SciencesPeer-reviewedCC BY 4.0General biochemistryCrossref

Cite

BibTeXRIS
BibTeX
@article{oliveira2026first,
  title = {{First report of culturable fungi associated with the Brazilian sharpnose shark (Rhizoprionodon lalandii) from southeastern Brazil.}},
  author = {Manoel M E Oliveira and Gisela Lara da Costa and Bruna Albuquerque de Souza and Barbara de Oliveira Baptista and Bruno Fernandes Barbosa and Rachel Ann Hauser-Davis},
  journal = {BMC microbiology},
  year = {2026},
  month = jul,
  doi = {10.1186/s12866-026-05409-6},
  url = {https://europepmc.org/article/MED/42958045},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - First report of culturable fungi associated with the Brazilian sharpnose shark (Rhizoprionodon lalandii) from southeastern Brazil.
AU  - Manoel M E Oliveira
AU  - Gisela Lara da Costa
AU  - Bruna Albuquerque de Souza
AU  - Barbara de Oliveira Baptista
AU  - Bruno Fernandes Barbosa
AU  - Rachel Ann Hauser-Davis
PY  - 2026
DA  - 2026/07/31
JO  - BMC microbiology
DO  - 10.1186/s12866-026-05409-6
UR  - https://europepmc.org/article/MED/42958045
AB  - Aims  Climate change and other anthropogenic environmental changes may alter fungal distributions and ecological interactions, potentially facilitating the emergence or redistribution of opportunistic fungi in marine ecosystems. These shifts raise concerns regarding microbial contamination in seafood and the need for surveillance in marine organisms. Elasmobranchs, such as sharks and rays, are ecologically and economically important but remain understudied regarding fungal occurrence in wild populations. This study provides the first report of cultivable fungal taxa associated with the Brazilian sharpnose shark (Rhizoprionodon lalandii) from southeastern Brazil.Methods and results  Swabs from the mouth, gills, and cloaca were obtained from 22 specimens procured from artisanal fisheries in Cabo Frio, Rio de Janeiro, Brazil. Fungal occurrence varied among sampled anatomical sites and individuals, with several cloacal samples showing abundant growth under the culture conditions employed. Recovered isolates consisted primarily of members of the Candida parapsilosis species complex and Meyerozyma guilliermondii, alongside occasional detection of other yeast taxa including Rhodotorula mucilaginosa, Debaryomyces hansenii, Trichosporon japonicum, and Pichia terricola. Because fungal recovery relied on culture-based methods, ITS sequencing of representative colonies, and sampling restricted to external and cloacal tissues, the detected assemblage likely reflects predominant culturable taxa rather than total fungal diversity. Furthermore, implications for food safety, transmission pathways, or environmental contamination remain speculative and warrant targeted investigation.Conclusions  These findings expand current knowledge regarding fungi associated with R. lalandii and highlight the need for additional studies incorporating environmental sampling, edible tissue analyses, and broader fungal characterization approaches to better understand potential ecological and public health implications.
SN  - 1471-2180
ER  -