ArticleApplied and environmental microbiology2007
New insights into the colonization and release processes of Xenorhabdus nematophila and the morphology and ultrastructure of the bacterial receptacle of its nematode host, Steinernema carpocapsae.
Article in Applied and environmental microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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45 citing papers in PubMed, 109 citations in OpenAlex.
- Genomes of the entomopathogenic nematode Steinernema hermaphroditum and its associated bacteria.Genetics · 2025Article
- Quorum sensing regulators and non-ribosomal peptide synthetases govern antibacterial secretions inFrontiers in microbiology · 2025Article
- Thioredoxin 1 moonlights as a chaperone for an interbacterial ADP-ribosyltransferase toxin.Nature communications · 2024Article
- A Comparative Analysis of DifferentInsects · 2024Article
- The Impact of Environmental Habitats and Diets on the Gut Microbiota Diversity of True Bugs (Hemiptera: Heteroptera).Biology · 2022Article
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- Immune mediation of HMG-like DSP1 via Toll-Spätzle pathway and its specific inhibition by salicylic acid analogs.PLoS pathogens · 2021Article
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- Xenorhabdus bovienii strain jolietti uses a type 6 secretion system to kill closely related Xenorhabdus strains.FEMS microbiology ecology · 2020Article
- Immune Response ofInsects · 2020Article
- Entomopathogenic nematode-associated microbiota: from monoxenic paradigm to pathobiome.Microbiome · 2020Article
- Variations of Indole Metabolites and NRPS-PKS Loci in Two Different Virulent Strains ofFrontiers in microbiology · 2020Article
- Inhibition of Spodoptera frugiperda phenoloxidase activity by the products of the Xenorhabdus rhabduscin gene cluster.PloS one · 2019Article
- Trade-off between reproductive and anti-competitor abilities in an insect-parasitic nematode-bacteria symbiosis.Ecology and evolution · 2018Article
- Review
- Article
- Symbiont-mediated competition: Xenorhabdus bovienii confer an advantage to their nematode host Steinernema affine by killing competitor Steinernema feltiae.Environmental microbiology · 2018Article
- Ready or Not: Microbial Adaptive Responses in Dynamic Symbiosis Environments.Journal of bacteriology · 2017Review
- Fitness costs of symbiont switching using entomopathogenic nematodes as a model.BMC evolutionary biology · 2017Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We present results from epifluorescence, differential interference contrast, and transmission electron microscopy showing that Xenorhabdus nematophila colonizes a receptacle in the anterior intestine of the infective juvenile (IJ) stage of Steinernema carpocapsae. This region is connected to the esophagus at the esophagointestinal junction. The process by which X. nematophila leaves this bacterial receptacle had not been analyzed previously. In this study we monitored the movement of green fluorescent protein-labeled bacteria during the release process. Our observations revealed that Xenorhabdus colonizes the distal region of the receptacle and that exposure to insect hemolymph stimulated forward movement of the bacteria to the esophagointestinal junction. Continued exposure to hemolymph caused a narrow passage in the distal receptacle to widen, allowing movement of Xenorhabdus down the intestine and out the anus. Efficient release of both the wild type and a nonmotile strain was evident in most of the IJs incubated in hemolymph, whereas only a few IJs incubated in nutrient-rich broth released bacterial cells. Incubation of IJs in hemolymph treated with agents that induce nematode paralysis dramatically inhibited the release process. These results suggest that bacterial motility is not required for movement out of the distal region of the receptacle and that hemolymph-induced esophageal pumping provides a force for the release of X. nematophila out of the receptacle and into the intestinal lumen.
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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.