ArticleScientific reports2020
Conspecific and heterospecific pheromones stimulate dispersal of entomopathogenic nematodes during quiescence.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 42 citations in OpenAlex.
- A host-derived volatile primes context-dependent foraging behavior in parasitic nematodes via a lysosome-associated neural pathway.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Effect of Different Soils on Pheromone-Enhanced Movement of Entomopathogenic Nematodes.Journal of nematology · 2025Article
- Nematode Pheromones: Structures and Functions.Molecules (Basel, Switzerland) · 2023Review
- In an arms race between host and parasite, a lungworm's ability to infect a toad is determined by host susceptibility not parasite preference.Biology letters · 2022Article
- Infected host responses across entomopathogenic nematode phylogeny.Journal of nematology · 2021Article
- Dynamics of entomopathogenic nematode foraging and infectivity in microgravity.NPJ microgravity · 2020Article
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Authors and funding
12 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ascaroside pheromones stimulate dispersal, a key nematode behavior to find a new food source. Ascarosides produced by entomopathogenic nematodes (EPNs) drive infective juvenile (IJ) emergence from consumed cadavers and dispersal in soil. Without ascarosides from host cadavers, Steinernema feltiae (EPN) reduce dispersal substantially. To determine whether other Steinernema spp. exhibit the same behavior, we compared S. feltiae and S. carpocapsae IJs without host cadaver pheromones. Unlike S. feltiae, S. carpocapsae IJs continued to disperse. However, S. carpocapsae IJs exhibited a temperature-dependent quiescent period. The IJ quiescent period increased at ≤20 °C but did not appear at ≥25 °C. Consistent with this, S. carpocapsae IJ quiescence increased from 30 min to 24 h at ≤20 °C over 60 days. The quiescent period was overcome by dispersal pheromone extracts of their own, other Steinernema spp. and Heterorhabditis spp. Furthermore, S. carpocapsae IJ ambush foraging associated behaviors (tail standing, waving, and jumping) were unaffected by the absence or presence of host cadaver pheromones. For S. feltiae, IJ dispersal declined at all temperatures tested. Understanding the interaction between foraging strategies and pheromone signals will help uncover molecular mechanisms of host seeking, pathogenicity and practical applications to improve the EPN's efficacy as biocontrol agents.
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