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Peer-reviewedCC BY 4.0Parasitology Research

Description of three new types of aurantiactinomyxon actinospores (Myxozoa: Myxosporea) from the oligochaete Aulophorus sp. in Tasik Telabak, Malaysia

  • Nadhirah Syafiqah Suhaimi1,2
  • Csaba Székely1
  • Gábor Cech1
  • Boglárka Sellyei1
  • Muhammad Hafiz Borkhanuddin3
  1. 1HUN-REN Veterinary Medical Research Institute, 1143. Budapest, Hungária krt. 21, Budapest, Hungary
  2. 2Doctoral School of Animal Biotechnology and Animal Science, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary
  3. 3Faculty of Science & Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, 21030 Malaysia
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Abstract

During a 2024 survey for actinosporeans at Tasik Telabak, Malaysia, three distinct aurantiactinomyxon types were identified from different specimens of the oligochaete Aulophorus sp. and characterized through both morphological and molecular analyses. Morphometric measurements revealed notable differences among the three types, particularly in the length of their caudal processes, despite all three types being found in the same host species. Analysis of the 18S ribosomal DNA (rDNA) of these aurantiactinomyxon types showed no close matches to existing myxozoan sequences in GenBank. Phylogenetic analyses placed all three types within a myxobolid clade dominated by Henneguya spp.; aurantiactinomyxon type 1 formed a subclade with Myxobolus miyairii from Silurus asotus, while aurantiactinomyxon types 2 and 3 clustered at the base of a larger subclade comprising mainly Henneguya species that infect Ictalurus punctatus and related catfish species. This study represents the second report of myxosporean infections in Malaysian oligochaete communities.

Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s00436-026-08739-6.

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Cite

BibTeXRIS
BibTeX
@article{suhaimi2026description,
  title = {{Description of three new types of aurantiactinomyxon actinospores (Myxozoa: Myxosporea) from the oligochaete Aulophorus sp. in Tasik Telabak, Malaysia}},
  author = {Nadhirah Syafiqah Suhaimi and Csaba Székely and Gábor Cech and Boglárka Sellyei and Muhammad Hafiz Borkhanuddin},
  journal = {Parasitology Research},
  year = {2026},
  month = jul,
  doi = {10.1007/s00436-026-08739-6},
  url = {https://doi.org/10.1007/s00436-026-08739-6},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Description of three new types of aurantiactinomyxon actinospores (Myxozoa: Myxosporea) from the oligochaete Aulophorus sp. in Tasik Telabak, Malaysia
AU  - Nadhirah Syafiqah Suhaimi
AU  - Csaba Székely
AU  - Gábor Cech
AU  - Boglárka Sellyei
AU  - Muhammad Hafiz Borkhanuddin
PY  - 2026
DA  - 2026/07/29
JO  - Parasitology Research
DO  - 10.1007/s00436-026-08739-6
UR  - https://doi.org/10.1007/s00436-026-08739-6
AB  - During a 2024 survey for actinosporeans at Tasik Telabak, Malaysia, three distinct aurantiactinomyxon types were identified from different specimens of the oligochaete Aulophorus sp. and characterized through both morphological and molecular analyses. Morphometric measurements revealed notable differences among the three types, particularly in the length of their caudal processes, despite all three types being found in the same host species. Analysis of the 18S ribosomal DNA (rDNA) of these aurantiactinomyxon types showed no close matches to existing myxozoan sequences in GenBank. Phylogenetic analyses placed all three types within a myxobolid clade dominated by Henneguya spp.; aurantiactinomyxon type 1 formed a subclade with Myxobolus miyairii from Silurus asotus, while aurantiactinomyxon types 2 and 3 clustered at the base of a larger subclade comprising mainly Henneguya species that infect Ictalurus punctatus and related catfish species. This study represents the second report of myxosporean infections in Malaysian oligochaete communities.  Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s00436-026-08739-6.
SN  - 0932-0113
SN  - 1432-1955
ER  -