Novel Plant Defences Against Nematodes

Atkinson, H. J.; Blundy, Keith S.; Clarke, Martin; Hansen, Ekkehard; Harper, Glyn; Koritsas, V. M.; McPherson, Michael J.; O’Reilly, David R.; Scollan, Claire; Turnbull, Stephen; Urwin, Peter E.

doi:10.1007/978-1-4757-9080-1_17

Cited by 5 publications

(4 citation statements)

References 35 publications

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“…Screening for GUS expression after M.incognita infection showed that expression of many genes normally expressed at different developmental times or in different cell types are upregulated in giant cells. These results in Arabidopsis are consistent with previous observations in tomato (Bird and Wilson, 1994) and confirm the complex morphological and physiological changes in cells during their modification into nematode feeding site (Jones, 1981; reviewed in Atkinson et al ., 1994; Niebel et al ., 1994).…”

Section: Discussionmentioning

confidence: 99%

“…The identification and cloning of nematode‐responsive plant genes and promoters constitute a major challenge for our knowledge and understanding of the plant–nematode interaction and the development of novel approaches to engineering plant resistance (reviewed in Gheysen et al ., 1996; Grundler, 1996). Nematode‐responsive promoters may be used to express anti‐nematode proteins (Atkinson et al ., 1994), phytotoxic proteins or essential genes (anti‐sense approaches) that interfere with the development of feeding cells (Sijmons, 1993). Furthermore, determining how a nematode selects particular root cells and modifies them to serve as a feeding site will enhance our understanding of normal cell development and may serve in identifying genes that regulate aspects of cell division.…”

Section: Discussionmentioning

confidence: 99%

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RPE, a plant gene involved in early developmental steps of nematode feeding cells

Favery¹,

Lecomte²,

Gil³

et al. 1998

EMBO J

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

RPE, a plant gene involved in early developmental steps of nematode feeding cells

Favery¹,

Lecomte²,

Gil³

et al. 1998

EMBO J

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“…Continued searches of germplasm are needed to identify new sources of resistance. Artificially engineered resistance based on antisense technology or expression of anti-nematode proteins may be an additional source of resistance (3,53).…”

Section: Discussionmentioning

confidence: 99%

Root-Knot Nematode Resistance Genes in Tomato and Their Potential for Future Use

Williamson

1998

Annu. Rev. Phytopathol.

188

132

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The gene Mi, which confers resistance to several species of root-knot nematode, is present in many modern tomato cultivars. Recent cloning of this gene revealed that it encodes a member of the plant resistance protein family characterized by the presence of a putative nucleotide binding site and a leucine-rich repeat. Analysis of transgenic plants revealed the unexpected result that Mi also confers resistance to potato aphids. Although highly effective in many conditions, Mi fails to confer resistance at high soil temperature, and Mi-virulent nematode isolates have been identified in many areas of the world. These findings have stimulated efforts to identify new sources of root-knot nematode resistance. Resistance genes that differ from Mi in properties and genetic position have been identified in Lycopersicon peruvianum. These genes, as well as the cloned Mi gene, provide a resource for broadening the base of root-knot nematode resistance in tomato and other crops.

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“…Yield loss due to nematode infection can be difficult to quantify as a lack of clear symptoms often allows the presence of nematodes to remain undetected by growers until the infestation is severe (Atkinson, 1996). However, it is estimated that in EU countries the combined annual yield loss to sugar beet cyst nematode is $95 million (Müller, 1999).…”

Section: Introductionmentioning

confidence: 99%

Molecular aspects of cyst nematodes

Lilley

Atkinson

Urwin

2005

Molecular Plant Pathology

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Cyst nematodes comprise approximately 100 known species in six genera. They are pathogens of temperate, subtropical and tropical plant species and the host range of many species is narrow. The most economically important species are within the Globodera and Heterodera genera. Globodera pallida and G. rostochiensis are important pathogens of potato crops. There are many economic species in the Heterodera genus, including Heterodera glycines (soybean cyst nematode), H. avenae (cereal cyst nematode) and H. schachtii (sugar beet cyst nematode), the last of which attacks a range of Chenopodiaceae and Cruciferae, including Arabidopsis thaliana. Disease symptoms: Field symptoms of severe cyst nematode infection are often stunting, wilting and chlorosis, but considerable yield loss can occur without obvious symptoms. The only unique indicator of cyst nematode infection is the presence of adult female nematodes attached to host roots after several weeks of parasitism. Disease control: This is usually achieved by using integrated pest management involving cultural practices such as crop rotation, resistant cultivars if available and chemical control when economically justified.

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Novel Plant Defences Against Nematodes

Cited by 5 publications

References 35 publications

RPE, a plant gene involved in early developmental steps of nematode feeding cells

RPE, a plant gene involved in early developmental steps of nematode feeding cells

Root-Knot Nematode Resistance Genes in Tomato and Their Potential for Future Use

Molecular aspects of cyst nematodes

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