Corpus ID: 55538193

Nematodes and nematophagous fungi associated with Citrus fields and Pinus halepensis-Quercus rotundifolia forest soil

@inproceedings{OlivaresBernabu2003NematodesAN,
  title={Nematodes and nematophagous fungi associated with Citrus fields and Pinus halepensis-Quercus rotundifolia forest soil},
  author={C. Olivares-Bernab{\'e}u and L. V. Lopez-Llorca and B. Boag},
  year={2003}
}
Eight forest (Quercus rotundz/olia and Pinus halepensis) and seven crop field (Citrus spp.) soils were surveyed in southeast Spain for nematode and nematophagous fungi. Nematodes were markedly more abundant in forest than in Citrus soils. The most commonly occurring group of nematodes were free-living nematodes (especially Rhabditis spp.) which occurred in both soil types. The mostly prevalent plant parasitic genera, which occurred in both soil types, were Filenehus sp., Aphelenehus sp. and… Expand

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References

SHOWING 1-10 OF 19 REFERENCES
Population dynamics of nematophagous fungi and nematodes in an arable soil: vertical and seasonal fluctuations
TLDR
The results indicate that there is a positive correlation between both the parasitic nematode-trapping species as well as the endoparasitic species and nematodes respectively, but not between the more saprophytic nematODE-trapped species and Nematodes. Expand
Ecology of nematophagous fungi: effect of soil moisture, organic matter, pH and nematode density on distribution
TLDR
The effect of organic matter, soil moisture, pH and the indigenous soil nematode density on the distribution of nematophagous fungi has been examined to indicate which of these major factors are important in their distribution. Expand
Fungal egg-parasites of plant-parasitic nematodes from Spanish soils.
TLDR
The results show that agricultural soils in Spain contain fungal parasites susceptible to be biocontrol agents for plant-parasitic nematodes. Expand
Ecology of nematophagous fungi:Panagrellus redivivus as the target organism
TLDR
The results indicate that both endoparasites and predators display a small degree of selectivity, and that any selection is most likely due to the anatomy of the host or prey and the mode of infection or capture of the fungus. Expand
Nematode-trapping fungi in organic and conventional cropping systems.
TLDR
Bacterivorous nematodes were more abundant and microbial biomass (substrate-induced respiration) was greater in organic than in conventional plots and suppression of the root-knot nematode Meloidogyne javanica was not related to management system or population density but was positively related to microbial biomass. Expand
Quantification of predatory and endoparasitic nematophagous fungi in soil
TLDR
Methods were developed to quantify predatory and endoparasitic fungi in soil based on previously developed detection techniques and combined with a most probable number estimation and applied to an agricultural soil fertilized with farmyard manure. Expand
Attraction of Nematodes to Living Mycelium of Nematophagous Fungi
TLDR
The attraction intensity of different fungi increased with increasing dependence of the fungi on nematodes for nutrients, and that of the nematophagous fungi also increased. Expand
The comparison of isolation techniques for nematophagous fungi from soil
TLDR
The soil sprinkling technique and the Baermann funnel technique are shown to be the most efficient methods overall, with six and seven replicates required for 95% probability of isolating all the predator and endoparasite species respectively. Expand
Notes on the technique of handling predacious fungi
Methods used in the study of predacious fungi include techniques for obtaining mixed cultures of the fungi from Nature, for isolating those that will grow in pure culture, for observing livingExpand
A SIMPLE TECHNIQUE FOR OBTAINING CLEAN PANAGRELLUS REDIVIVUS FROM AXENIC CULTURES FOR STUDIES WITH NEMATOPHAGOUS FUNGI
A new method, based on layered discontinuous density gradient of potassium tartrate is proposed to obtain clean Panagrellus redivivus from axenic cultures.
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