The contribution of biotechnology to root-knot nematode control in tomato plants. (Articolo in rivista)

Type
Label
  • The contribution of biotechnology to root-knot nematode control in tomato plants. (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Bleve-Zacheo T., Melillo M.T., Castagnone-Sereno P. (2007)
    The contribution of biotechnology to root-knot nematode control in tomato plants.
    in Pest technology (Isleworth); Global science Books, Takamatsu (Giappone)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bleve-Zacheo T., Melillo M.T., Castagnone-Sereno P. (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 16 (literal)
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  • http://www.globalsciencebooks.info/JournalsSup/07PT_1_1.html (literal)
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  • 1 (literal)
Rivista
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  • Special Feature (literal)
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  • 16 (literal)
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  • Istituto per la Protezione delle Piante - CNR, Bari INRA, Sophia-Antipolis, France (literal)
Titolo
  • The contribution of biotechnology to root-knot nematode control in tomato plants. (literal)
Abstract
  • Root-knot nematodes (Meloidogyne spp.) represent a particularly serious pest for tomato crops. These pathogens have evolved a sophisticated interrelationship with the roots of their host where they induce a specific type of nurse cell system, classified as multinucleate giant cells. The structural and physiological transformation of the initial cell to become the nematode feeding site is paralleled by modifications in plant gene expression. The recent characterisation of several parasitism genes specifically expressed within oesophageal gland cells of root-knot nematodes suggests that their products can influence the host cellular metabolism. In plants with genetic disease resistance, these secreted molecules might serve as virulence factors for successful parasitism. The Mi gene, which confers resistance to several species of root-knot nematodes, is present in many modern tomato cultivars. Resistance mediated by Mi is associated with localized necrosis of host tissue at the nematode feeding site and occurs very early after nematode infection. However, how Mi mediates recognition of and resistance to root-knot nematodes is largely unknown. In parallel with the use of such natural resistance, several biotechnological strategies have been experienced to improve tomato resistance. They are mainly based on the over-expression of anti-nematode and/or anti-giant cell genes placed under the control of specific promoters. Here, we review the recent progress in determining the role of signal transduction pathway(s) in tomato responses during both susceptible and resistant interactions, and how such knowledge should allow the development of alternative strategies for engineering durable resistance against root-knot nematodes in tomato. (literal)
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