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Published on: July 5, 2019
Molecular aspects of cyst nematodes
Catherine J Lilley1, Howard J Atkinson, Peter E Urwin
1Centre for Plant Sciences, University of Leeds, Leeds LS2 9JT, UK.
Molecular Plant Pathology
|June 23, 2010
Summary
Cyst nematodes are plant pathogens impacting crops globally. Integrated pest management, including crop rotation and resistant varieties, is key for controlling these economically significant pests.
Area of Science:
- Plant Pathology
- Nematology
- Agricultural Science
Background:
- Cyst nematodes (family Heteroderidae) encompass ~100 species across six genera, posing significant threats to global agriculture.
- Economically vital genera include Globodera and Heterodera, with species like Globodera pallida, Globodera rostochiensis, Heterodera glycines, Heterodera avenae, and Heterodera schachtii causing substantial crop damage.
Purpose of the Study:
- To provide a taxonomic overview of cyst nematodes.
- To detail the host range, disease symptoms, and control strategies for economically important cyst nematodes.
Main Methods:
- Taxonomic classification within the order Tylenchida.
- Review of host-pathogen interactions and disease symptomatology.
- Outline of integrated pest management strategies for disease control.
Main Results:
- Cyst nematodes exhibit narrow host ranges, affecting temperate, subtropical, and tropical plant species.
- Key crop targets include potato (Globodera spp.), soybean (Heterodera glycines), cereals (Heterodera avenae), and sugar beet (Heterodera schachtii).
- Yield losses can occur without visible symptoms, with the presence of adult females on roots being a unique diagnostic indicator.
Conclusions:
- Effective management relies on integrated pest management (IPM) approaches.
- IPM strategies incorporate cultural practices like crop rotation, deployment of resistant cultivars, and judicious chemical control.
- Understanding nematode taxonomy and host range is crucial for developing targeted control measures.
