Amazonian Worm May Become a New Model for Environmental Research in Tropical Regions
A study published in February this year in the international scientific journal Invertebrate Reproduction & Development describes, for the first time, the complete life cycle of a small Amazonian worm (a type of nematode), Caenorhabditis tropicalis, and highlights its potential as a model organism for experimental research, particularly in tropical regions.
The research shows that the species has a short life cycle—approximately 48 hours—and a developmental pattern similar to that of Caenorhabditis elegans, a widely used model organism in laboratory studies around the world.
This study is part of the scientific efforts supported by the Brazil–Norway Biodiversity Research Consortium (BRC), which invests in generating knowledge about Amazonian biodiversity and its ecological processes. By investigating native species such as C. tropicalis, the research contributes to the development of experimental tools better suited to the environmental conditions of the region.
C. elegans is one of the most widely used organisms globally in studies of biology, genetics, aging, and ecotoxicology. However, it is primarily associated with temperate climates.
According to researcher Erivaldo Baia, the choice of organism used in experimental studies can directly influence how environmental impacts are understood.
“The use of this species as an experimental model, especially in studies aimed at assessing the toxic effects of chemical substances, will allow for a more realistic evaluation of the impact of contaminants on Amazonian fauna. The use of species that do not even occur in our region, such as the nematode C. elegans, may fail to reflect local reality and can even mask potential harmful effects of contaminants on native organisms.”
The study reinforces the importance of considering species adapted to tropical environments in environmental research, particularly in contexts such as the Amazon, where ecological conditions differ significantly from other regions of the world.
The full article is available here
About the BRC:
The Brazil–Norway Biodiversity Research Consortium (BRC) is an initiative for cooperation and environmental research in the Amazon, formed by the Federal University of Pará (UFPA), the Federal Rural University of the Amazon (UFRA), the Emílio Goeldi Museum, the University of Oslo, and Hydro. Funded by the Hydro Fund, the consortium's Executive Secretariat is coordinated by the Peabiru Institute.
By Ana Lucia Galvão | Edited by Luciana Kellen.