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Dafadine Does Not Promote Dauer Development in Pristionchus pacificus.

Heather R Carstensen | Ray L Hong
microPublication biology | 2025

In response to unfavorable conditions, nematodes develop into the stress-resistant dauer larvae. Under favorable conditions, many nematodes are known to synthesize dafachronic acids (DAs) that bind to the conserved nuclear hormone receptor DAF-12 to suppress dauer development. However, the enzymes involved in the production of DAs have not been thoroughly investigated in Pristionchus pacificus . Here we show that the cytochrome P450 inhibitor Dafadine-A, which suppresses DAF-9 in DA biosynthesis in C. elegans and other nematode species, does not cause constitutive dauer formation or gonad migration defects in P. pacificus wild type. Instead, Dafadine-A may slightly reduce P. pacificus growth rate.

Pubmed ID: 39916877

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Associated grants

  • Agency: NIGMS NIH HHS, United States
    Id: SC1 GM140970

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Central data repository for nematode biology including complete genomic sequence, gene predictions and orthology assignments from range of related nematodes.Data concerning genetics, genomics and biology of C. elegans and related nematodes. Derived from initial ACeDB database of C. elegans genetic and sequence information, WormBase includes genomic, anatomical and functional information of C. elegans, other Caenorhabditis species and other nematodes. Maintains public FTP site where researchers can find many commonly requested files and datasets, WormBase software and prepackaged databases.

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