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Symbiosis00:58

Symbiosis

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Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
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Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
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Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.
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Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
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In vivo and In vitro Rearing of Entomopathogenic Nematodes Steinernematidae and Heterorhabditidae
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Entomopathogenic nematode-gastropod interactions.

Jacob Schurkman1, Adler R Dillman1

  • 1Department of Nematology, University of California, Riverside, 900 University Ave, Riverside, CA, 92521.

Journal of Nematology
|July 8, 2021
PubMed
Summary
This summary is machine-generated.

Entomopathogenic nematodes show promise for controlling gastropod pests and disease vectors. Further research is needed to confirm their efficacy and establish best practices for biological control applications.

Keywords:
Biological controlEntomopathogenic nematodeGastropodHost-parasite interactionManagementMethodology

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Area of Science:

  • Agricultural Science
  • Nematology
  • Pest Management

Background:

  • Entomopathogenic nematodes (EPNs) are natural insect pathogens used in biological control.
  • Gastropods (slugs and snails) are significant agricultural pests and disease vectors.
  • The use of EPNs for gastropod control is understudied.

Purpose of the Study:

  • To review existing studies on EPN efficacy against gastropods.
  • To identify criteria for future research on EPN-gastropod interactions.

Main Methods:

  • Literature review of studies assessing EPN efficacy in gastropod control.

Main Results:

  • Limited studies suggest potential for EPNs in gastropod biological control.
  • Key factors for future research include EPN dose, assay duration, host/nematode biology, and Koch's postulates.

Conclusions:

  • EPNs may offer a viable biological control strategy for gastropod pests and vectors.
  • More research, including negative results, is essential to validate EPN efficacy and optimize application methods.