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New Henneguya Species Cause Gill Disease of Commercial Amazonian Fish.
Acta Parasitol
January 2025
Laboratory of Morpho-Molecular Integration and Technologies (LIMT), Federal Rural University of the Amazon (UFRA), Belém, Pará, Brazil.
Background: Freshwater fish are affected with much parasitic diseases, among the most common are Henneguyosis caused by myxozoans of the genus Henneguya, which exhibit great diversity in fish from South America, particularly in the Brazilian Amazon.
Purpose: In this present study, we describe the morphological and phylogenetic aspects of the small ribosomal subunit (SSU rDNA) of two new species of Henneguya infecting the gills from Hypophthalmus marginatus, a freshwater catfish from the Amazon.
Methods: In 148 specimens, has been observed cyst formation in different regions of the gills, intrafilamentary and intralamellar.
Hennegoides Africanus sp. nov. from Kadey River in Cameroon.
Acta Parasitol
January 2025
Laboratory of Parasitology and Ecology, Department of Animal Biology and Physiology, Faculty of Sciences, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon.
Purpose: Fish are susceptible to various parasitic infections, with Myxozoa emerging as a major group. A taxonomic study of Myxozoa is essential for the rapid diagnosis of species potentially responsible for epizootic diseases.
Methods: The studied fish was collected from the Kadey River, a tributary of the Sangha River in the Congo Basin in Cameroon, and parasitologically dissected.
Proteomic Variation in the Oral Secretion of Spodoptera exigua and Spodoptera littoralis Larvae in Response to Different food Sources.
J Chem Ecol
January 2025
Biotechnological Control of Pests Laboratory, Institute of Biotechnology and Biomedicine (BIOTECMED), Universitat de València, Burjassot, Valencia, 46100, Spain.
The Spodoptera genus is defined as the pest-rich genus because it contains some of the most destructive lepidopteran crop pests, characterized by a wide host range. During feeding, the caterpillars release small amounts of oral secretion (OS) onto the wounded leaves. This secretion contains herbivore-induced molecular patterns (HAMPs) that activate the plant defense response, as well as effectors that may inhibit or diminish the plant's anti-herbivory response.
View Article and Find Full Text PDFToxicity of the Herbicide Roundup Original DI in Tadpoles of and (Anura: Leptodactylidae).
Toxics
December 2024
Tropical Herpetology Lab, Graduate Program in Zoology, Department of Biological Sciences, State University of Santa Cruz, Ilhéus 45662-900, BA, Brazil.
Brazil is one of the largest consumers of herbicides in the world, and glyphosate-based herbicides (e.g., Roundup) are commonly applied in cropland.
View Article and Find Full Text PDFEchinococcosis: From Parasite-Host Interaction to Rapid Detection.
Trop Med Infect Dis
December 2024
National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China.
Echinococcosis is one of the most serious and life-threatening parasitic zoonoses worldwide caused by the larvae of the genus [...
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