ArticleJournal of chemical ecology2009
Determination of preferred pH for root-knot nematode aggregation using pluronic F-127 gel.
Article in Journal of chemical ecology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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Who cites it
36 citing papers in PubMed.
- Rhizosphere microecological characteristics associated with tobacco root-knot nematode disease.Frontiers in microbiology · 2026Article
- Effects of MAPK Homologous Genes on Chemotaxis and Egg Hatching inPathogens (Basel, Switzerland) · 2025Article
- Flavonoids as Signals Mediate Plant-nematode Communication Through Regulating Nematode Perceptual Ability.Journal of chemical ecology · 2025Article
- Identification of Slime Mold Metabolites That Confer Protection to Commercial Crops against Root-Knot Nematodes.Journal of agricultural and food chemistry · 2025Article
- Populations ofMicroorganisms · 2025Article
- Detection of the Effects of Root Exudates (Diffusates) on Nematode Hatching and Attraction.Methods in molecular biology (Clifton, N.J.) · 2024Article
- Soil Nematodes as the Silent Sufferers of Climate-Induced Toxicity: Analysing the Outcomes of Their Interactions with Climatic Stress Factors on Land Cover and Agricultural Production.Applied biochemistry and biotechnology · 2023Review
- Aqueous Extracts of Organic Mulch Materials Have Nematicide and Repellent Effect onJournal of nematology · 2023Article
- Occurrence and Geographic Distribution of Plant-Parasitic Nematodes Associated with Citrus in Morocco and Their Interaction with Soil Patterns.Life (Basel, Switzerland) · 2022Article
- Rhamnogalacturonan-I as a nematode chemoattractant fromFrontiers in plant science · 2022Article
- Effect of ectomycorrhizal fungal species on population growth and food preference of a fungivorous nematode.Mycorrhiza · 2022Article
- Biocontrol ofFrontiers in plant science · 2022Article
- Phytoparasitic nematodes of organic vegetables in the Argan Biosphere of Souss-Massa (Southern Morocco).Environmental science and pollution research international · 2021Article
- Influence of ecological and edaphic factors on biodiversity of soil nematodes.Saudi journal of biological sciences · 2021Article
- The Scent of Life: Phoretic Nematodes Use Wasp Volatiles and Carbon Dioxide to Choose Functional Vehicles for Dispersal.Journal of chemical ecology · 2021Article
- EPNs Exhibit Repulsion to Prenol in Pluronic Gel Assays.Insects · 2020Article
- The role of carbon dioxide in nematode behaviour and physiology.Parasitology · 2020Review
- Dihydroxyacetone of wheat root exudates serves as an attractant for Heterodera avenae.PloS one · 2020Article
- Root-knot nematodes demonstrate temporal variation in host penetration.Journal of nematology · 2020Article
- Simultaneous RNAi Knockdown of Three FMRFamide-Like Peptide Genes,Frontiers in microbiology · 2020Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Root-knot nematodes (Meloidogyne spp.) are obligate endoparasites of a wide range of plant species. The infective stage is attracted strongly to and enters host roots at the zone of elongation, but the compounds responsible for this attraction have not been identified. We developed a simple assay to investigate nematode response to chemical gradients that uses Pluronic F-127, a synthetic block copolymer that, as a 23% aqueous solution, forms a liquid at low temperature and a gel at room temperature. Test chemicals are put into a modified pipette tip, or 'chemical dispenser,' and dispensers are inserted into the gel in which nematodes have been dispersed. Meloidogyne hapla is attracted to pH gradients formed by acetic acid and several other Brønsted acids and aggregates between pH 4.5 and 5.4. While this pH range was attractive to all tested root-knot nematode strains and species, the level of aggregation depended on the species/strain assessed. For actively growing roots, the pH at the root surface is most acidic at the zone of elongation. This observation is consistent with the idea that low pH is an attractant for nematodes. Root-knot nematodes have been reported to be attracted to carbon dioxide, but our experiments suggest that the observed attraction may be due to acidification of solutions by dissolved CO(2) rather than to CO(2) itself. These results suggest that Pluronic F-127 gel will be broadly applicable for examining responses of a range of organisms to chemical gradients or to each other.
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