skip to main content
Idioma:
Tipo de recurso Mostra resultados com: Mostra resultados com: Índice

Biocontrol and Plant Pathogenic Fusarium oxysporum-Induced Changes in Phenolic Compounds in Tomato Leaves and Roots

Panina, Y ; Fravel, D.R ; Baker, C.J ; Shcherbakova, L.A

Journal of phytopathology, 2007-08, Vol.155 (7-8), p.475-481 [Periódico revisado por pares]

Oxford, UK: Oxford, UK : Blackwell Publishing Ltd

Texto completo disponível

Citações Citado por
  • Título:
    Biocontrol and Plant Pathogenic Fusarium oxysporum-Induced Changes in Phenolic Compounds in Tomato Leaves and Roots
  • Autor: Panina, Y ; Fravel, D.R ; Baker, C.J ; Shcherbakova, L.A
  • Assuntos: biocontrol ; biological control ; biosynthesis ; chemical constituents of plants ; defense mechanisms ; disease control ; Fusarium oxysporum ; Fusarium oxysporum f. sp. lycopersici ; Fusarium wilt ; host-parasite relationships ; leaves ; Lycopersicon esculentum ; pathogenicity ; phenolic compounds ; plant pathogenic fungi ; roots ; secondary metabolites ; seedlings ; Solanum lycopersicum var. lycopersicum ; tomatoes
  • É parte de: Journal of phytopathology, 2007-08, Vol.155 (7-8), p.475-481
  • Notas: http://dx.doi.org/10.1111/j.1439-0434.2007.01260.x
    http://hdl.handle.net/10113/2503
    ark:/67375/WNG-5JLK5NP3-C
    istex:0BAB56B05565B577BEB7C645849EF91CE1906B37
    ArticleID:JPH1260
    ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The biocontrol fungus Fusarium oxysporum strain CS-20 was previously shown to reduce the incidence of Fusarium wilt of tomato through an uncharacterized host-mediated response. As phenolic compounds are involved in the defence response of tomato to pathogens and other stressors, this work was undertaken to determine whether biocontrol strains induced changes in phenolic compounds in leaves and roots of tomato seedlings in the presence and absence of pathogenic F. oxysporum f. sp. lycopersici. Roots of intact tomato seedlings were placed in water or aqueous fungal spore suspensions. Two biocontrol F. oxysporum strains [CS-20 (host-mediated mechanism) and 85SK-1 (control mechanism unknown)] and two plant pathogenic strains of F. oxysporum f. sp. lycopersici Race 1 were used. After 24 or 72 h exposure, phenolic compounds were extracted from leaves and roots before identification by HPLC. There were significant qualitative and quantitative differences between the two sampling times. Compared with the control treatment, strain CS-20 significantly altered (usually increasing) the ferulic, caffeic and vanillic acid contents, and concentrations once unidentified phenolic compounds recovered from leaves and roots. In another experiment, tomato seedlings growing in sterile sand were drenched with spores of strain CS-20 the day before treating them with varying concentrations of spores of the pathogen for 24 or 72 h. The amount of pathogen present did not significantly affect the plant phenolic response to the presence of strain CS-20. This work demonstrates that tomato responds within 24 h to the presence of the biocontrol strain CS-20 by alterations in secondary metabolism that are typical of resistance responses in tomato.
  • Editor: Oxford, UK: Oxford, UK : Blackwell Publishing Ltd
  • Idioma: Inglês;Russo
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.