Induction of resistance to root-knot nematodes by SAR elicitors in tomato. (Articolo in rivista)

Type
Label
  • Induction of resistance to root-knot nematodes by SAR elicitors in tomato. (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.cropro.2010.07.012 (literal)
Alternative label
  • Molinari S. , Baser N. (2010)
    Induction of resistance to root-knot nematodes by SAR elicitors in tomato.
    in Crop protection
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Molinari S. , Baser N. (literal)
Pagina inizio
  • 1354 (literal)
Pagina fine
  • 1362 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 29 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • N. Baser: Istituto Agronomico Mediterraneo, CIHEAM, Valenzano-Bari, Italy (literal)
Titolo
  • Induction of resistance to root-knot nematodes by SAR elicitors in tomato. (literal)
Abstract
  • Different concentrations of the systemic acquired resistance (SAR) elicitors, salicylic acid (SA), methylsalicylic acid (MetSA), acibenzolar-S-methyl (ASM) and 2,6-dicholoroisonicotinic acid (INA), were provided to tomato seedlings as root-dip or soil-drench one day before inoculation with the root-knot nematode, Meloidogyne incognita. Nematode infestation was evaluated by counting egg masses/plant (EM), eggs/plant (Pf), and sedentary forms/plant (SF) in treated and untreated plants seven weeks after inoculation. An index of plant fitness (PF) was also calculated to assess the costs of chemically-induced resistance and the possible phytotoxicity of the treatments. SA and ASM were found to be effective elicitors of resistance when applied at suitable concentrations and method of application. Soil-drench with SA and root-dip in ASM were the most effective treatments as they markedly reduced both nematode reproduction (less than 50% that of untreated plants) and infestation (50e70% EM reduction). MetSA was less effective than SA in eliciting resistance because of its negative effects on plant fitness when it was provided as soil-drench. INA did not reduce nematode infestation at any of the nonphytotoxic rates. The reduction of nematode infestation and reproduction by SA applied as soil-drench was potentiated when the soil was enriched with humic acids. Soil-drenching with SA and MetSA were the only treatments that caused a long-lasting induction of plant defences as they inhibited the infestation by the second generation of the nematode. (literal)
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