Evidence map›Paper›PMID 42496755›Full record

ArticleActa parasitologica2026

Morphological and molecular analysis of Myxobolus malabaricus n. sp. (Myxosporea: Myxozoa) parasitizing Hoplias malabaricus in Amazon basin.

Márcia Nazaré Sacco Dos Santos, Sávio Lucas Matos Guerreiro, Flávia Letícia Gurjão De Andrade, Mikaela Vivian Pereira Andrade, Diehgo Tuloza Da Silva, Elane Guerreiro Giese, Edilson Rodrigues Matos, Igor Guerreiro Hamoy

Abstract read
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In one paragraph

Article in Acta parasitologica, 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

8 authors.

Márcia Nazaré Sacco Dos SantosAnimal Histology and Embryology Laboratory, Institute of Animal Health and Production, Federal Rural University of the Amazon, Belém, PA, Brazil.ORCID http://orcid.org/0000-0002-3457-9589
Sávio Lucas Matos GuerreiroLaboratory of Human and Medical Genetics, Postgraduate Program in Genetics and Molecular Biology, Federal University of Pará, Belém, PA, Brazil.ORCID http://orcid.org/0000-0002-3812-5541
Flávia Letícia Gurjão De AndradeLaboratory of Applied Genetics, Federal Rural University of Amazonia, Socio- environmental and Hydrological Resources Institute, Belém, PA, Brazil.ORCID http://orcid.org/0009-0006-8308-8053
Mikaela Vivian Pereira AndradeLaboratory of Applied Genetics, Federal Rural University of Amazonia, Socio- environmental and Hydrological Resources Institute, Belém, PA, Brazil.
Diehgo Tuloza Da SilvaCarlos Azevedo Research Laboratory, Institute of Animal Health and Production, Federal Rural University of the Amazon, Belém, PA, Brazil.ORCID http://orcid.org/0000-0002-1710-3386
Elane Guerreiro GieseAnimal Histology and Embryology Laboratory, Institute of Animal Health and Production, Federal Rural University of the Amazon, Belém, PA, Brazil.ORCID http://orcid.org/0000-0001-7833-1334
Edilson Rodrigues MatosCarlos Azevedo Research Laboratory, Institute of Animal Health and Production, Federal Rural University of the Amazon, Belém, PA, Brazil.
Igor Guerreiro HamoyLaboratory of Applied Genetics, Federal Rural University of Amazonia, Socio- environmental and Hydrological Resources Institute, Belém, PA, Brazil. igor.hamoy@ufra.edu.br.ORCID http://orcid.org/0000-0002-7412-4263

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present study identified an undescribed myxozoan parasite species infecting Hoplias malabaricus specimens collected from the Arari River, in the municipality of Cachoeira do Arari in the state of Pará, northern Brazil. Thirty specimens were necropsied to search for microparasite, and when plasmodium found, material was collected for analysis via light microscopy, histology and molecular biology methodologies. Macroscopic plasmodium was observed in the gills of 30% of the examined specimens. Microscopic analysis of the plasmodium revealed the presence of myxospores belonging to the genus Myxobolus. These myxospores were distinguished from other Myxobolus species that parasitize freshwater Amazonian fish based on their overall morphology, morphometry and partial sequence (1,452 base pairs) of the SSU rDNA gene. These analyses revealed the existence of a new species of Myxobolus, named Myxobolus malabaricus n. sp. The new species is clearly distinct from other Myxozoa and may be an important parasite for causing disease in the gills of H. malabaricus, an important species of the Amazonian teleost fauna.

Indexed as

CharaciformesFish DiseasesMyxobolusParasitic Diseases, AnimalAnimalsBrazilDNA, RibosomalGillsMicroscopyPhylogenyRiversSequence Analysis, DNADNA, RibosomalCnidariaGillMicroscopyParasiteTeleost fish

Identifiers

PMID42496755
PMCPMC13400454

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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.