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Assaying Predatory Feeding Behaviors in Pristionchus and Other Nematodes
Published on: September 4, 2016
Predator-prey interactions of nematode-trapping fungi and nematodes: both sides of the coin
Guillermo Vidal-Diez de Ulzurrun1, Yen-Ping Hsueh2
1Institute of Molecular Biology, Academia Sinica, 128 Academia Road, Section 2, Nangang, Taipei, 115, Taiwan.
Abstract:
Nematode-trapping fungi develop complex trapping devices to capture and consume nematodes. The dynamics of these organisms is especially important given the pathogenicity of nematodes and, consequently, the potential application of nematode-trapping fungi as biocontrol agents. Furthermore, both the nematodes and nematode-trapping fungi can be easily grown in laboratories, making them a unique manipulatable predator-prey system to study their coevolution. Several different aspects of these fungi have been studied, such as their genetics and the different factors triggering trap formation. In this review, we use the nematode-trapping fungus Arthrobotrys oligospora (which forms adhesive nets) as a model to describe the trapping process. We divide this process into several stages; namely attraction, recognition, trap formation, adhesion, penetration, and digestion. We summarize the latest findings in the field and current knowledge on the interactions between nematodes and nematode-trapping fungi, representing both sides of the predator-prey interaction.
Insights
Nematode-trapping fungi, like Arthrobotrys oligospora, capture nematodes using specialized traps. This review details the stages of this predator-prey interaction, highlighting biocontrol potential.
Area of Science:
- Mycology
- Nematology
- Biocontrol
Background:
- Nematode-trapping fungi possess complex devices for nematode capture and consumption.
- Nematodes are pathogenic, making these fungi potential biocontrol agents.
- The nematode-fungi system is a valuable model for studying predator-prey coevolution due to ease of laboratory cultivation.
Purpose of the Study:
- To review the trapping process of nematode-trapping fungi, using Arthrobotrys oligospora as a model.
- To summarize current knowledge on the interactions between nematodes and nematode-trapping fungi.
- To describe the stages involved in nematode capture and consumption by fungi.
Main Methods:
- Review of existing literature on nematode-trapping fungi and nematode interactions.
- Detailed description of the trapping process in Arthrobotrys oligospora.
- Synthesis of findings on fungal genetics and trap formation triggers.
Main Results:
- The nematode trapping process is divided into distinct stages: attraction, recognition, trap formation, adhesion, penetration, and digestion.
- Latest research findings on fungal-nematode interactions are summarized.
- Knowledge gaps and future research directions are identified.
Conclusions:
- Arthrobotrys oligospora serves as an effective model for understanding fungal predation on nematodes.
- Further research into fungal-nematode interactions can advance biocontrol strategies.
- The coevolutionary dynamics of this predator-prey system offer unique insights into ecological interactions.
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