Parasitic Strategies of Root Nematodes and Associated Host Cell Responses

Sijmons, Peter C.; Atkinson, and H J; Wyss, Urs

doi:10.1146/annurev.py.32.090194.001315

Cited by 133 publications

(69 citation statements)

References 47 publications

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“…The complex morphological and physiological changes that occur during the establishment of feeding sites are reflected by altered gene expression in the host (reviewed in Niebel et al, 1994;Sijmons et al, 1994). Molecular responses include those to wounding or stress caused by nematode infection as well as perturbations directed toward the initiation and maintenance of feeding sites.…”

Section: Molecularresponsesofthehostmentioning

confidence: 99%

“…Furthermore, acquisition of virulence by nematodes may shorten the effective utility of this approach. To fill the gap, a variety of strategies to engineer synthetic resistance are being developed (reviewed in Sijmons et al, 1994;Gheysen et al, 1996).…”

Section: Prospects For Engineered Resistance Genetics Of Virulence Inmentioning

confidence: 99%

“…An important caveat for this strategy is that the promoter must be very specific so as not to allow the toxin to destroy cells that are essential for plant development and reproduction. An alternative approach isto incorporate a second component, a neutraliting gene that is constitutively expressed in the plant except in feeding structures (Sijmons et al, 1994).…”

Section: Prospects For Engineered Resistance Genetics Of Virulence Inmentioning

confidence: 99%

“…This acl To whom correspondence should be addressed tivity has been sparked by both the availability of new molecular tools and the urgent need to identify new approaches to control these pests since the loss of many effective pesticides. Recent reviews have discussed nematode-induced genes in host plants and strategies for engineering synthetic resistance to nematodes (Sijmons et al, 1994;Gheysen et ai., 1996). We focus on new information in these areas and discuss the progress being made toward understanding natural host resistance.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Nematode Pathogenesis and Resistance in Plants

Williamson¹,

Hussey²

1996

The Plant Cell

103

123

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Section: Molecularresponsesofthehostmentioning

confidence: 99%

Section: Prospects For Engineered Resistance Genetics Of Virulence Inmentioning

confidence: 99%

Section: Prospects For Engineered Resistance Genetics Of Virulence Inmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nematode Pathogenesis and Resistance in Plants

Williamson¹,

Hussey²

1996

The Plant Cell

103

123

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“…In exclusively biotrophic pests and pathogens, rapid host death at the onset of the infection process is likely to result in starvation. The induced syncytial and giant cells required for the completion of the life cycle of sedentary cyst and root knot nematode species, respectively, are also ideal target sites for this strategy (Sijmons et al, 1994;Atkinson et aL, 1995).…”

Section: Spectrum 1nd Stable Disease Resist'incementioning

confidence: 99%

Ensnaring microbes: the components of plant disease resistance

Hammond‐Kosack

Jones

1996

New Phytologist

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SUMMARYPlants activate an array of co-ordinated defence responses to restrict microbial attack. Timely perception of foreign molecules appears to be critical for the success of these defences. However, the nature of the molecular events required for resistance is largely unknown. Recent isolation of disease resistance (R) genes, has revealed that R gene products have several features in common. This finding suggests that plants have evolved several common or similar signal transduction pathways to activate resistance to a range of unrelated microbes. R gene isolation and the genetic identification of other loci required for R function permits analysis of the structure and evolution of microbe-perception mechanisms. Numerous types of activated defence responses are recognized. .4 requirement for salicylic acid in resistance has been established in some systems. Roles for other events, like reactive oxygen species and the hypersensitive (host cell death) response, remain enigmatic. A thorough understanding of the components leading to pathogen recognition and the expression of resistance should permit the design of novel strategies to engineer broad-spectrum and durable plant disease control.

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Serologically Based Diagnostic and Quantification Tests for Nematodes

1996

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Plant parasitic nematodes are important plant pests which are difficult to identify and quantify. Serologically based techniques offer new ways to identify and quantify these parasites. Several factors need to be considered when developing an immunoassay for plant parasitic nematodes, including the application of the assay and the extraction procedure which together determine the likely organisms with which antibodies may cross-react. The four major factors: taxon specificity, nematode stage specificity, antibody specificity, and the level of management which is possible, need to be addressed interdependently and the best possible compromise made to develop a practical assay. Progress has been made in the immuno-diagnosis and quantification of potato cyst nematodes (Globodera spp) and root-knot nematodes (Meloidogyne spp) and these two groups of nematodes present different problems and therefore different challenges. The research reported here compares and contrasts work on these two groups of nematodes and highlights some of the important factors to be considered in the development of immunoassays for plant parasitic nematodes.

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Parasitic Strategies of Root Nematodes and Associated Host Cell Responses

Cited by 133 publications

References 47 publications

Nematode Pathogenesis and Resistance in Plants

Nematode Pathogenesis and Resistance in Plants

Ensnaring microbes: the components of plant disease resistance

Serologically Based Diagnostic and Quantification Tests for Nematodes

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