The expression of resistance to latent stem infection by Diaporthe toxica in narrow-leafed lupin

Manisha Shankar, W.A. Cowling, M.W. Sweetingham

    Research output: Contribution to journalArticle

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    Abstract

    Resistance to latent infection by Diaporthe toxica was examined in resistant acid susceptible cultivars and breeding lines of Lupinus angustifolius (narrow-leafed lupin or blue lupine). Conidial germination (91 +/- 1% at 3 days after inoculation) or penetration of the cuticle (14 +/- 1% at 3 days and 24 +/- 1% at 5 days) by D. toxica were not affected by host resistance. After 5 days, the relative size and number of subcuticular coralloid infection hyphae differed on resistant and susceptible hosts. On susceptible hosts, the majority of coralloid hyphae were large (>100 mu m long at 21 days). Resistant hosts had the same density of coralloid hyphae (approximately 300 hyphae per cm(2)), but the majority were small (
    Original languageEnglish
    Pages (from-to)692-697
    JournalPhytopathology
    Volume86
    DOIs
    Publication statusPublished - 1996

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    Diaporthe
    Lupinus
    hyphae
    stems
    infection
    Lupinus angustifolius
    breeding lines
    germination
    acids
    cultivars

    Cite this

    Shankar, Manisha ; Cowling, W.A. ; Sweetingham, M.W. / The expression of resistance to latent stem infection by Diaporthe toxica in narrow-leafed lupin. In: Phytopathology. 1996 ; Vol. 86. pp. 692-697.
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    abstract = "Resistance to latent infection by Diaporthe toxica was examined in resistant acid susceptible cultivars and breeding lines of Lupinus angustifolius (narrow-leafed lupin or blue lupine). Conidial germination (91 +/- 1{\%} at 3 days after inoculation) or penetration of the cuticle (14 +/- 1{\%} at 3 days and 24 +/- 1{\%} at 5 days) by D. toxica were not affected by host resistance. After 5 days, the relative size and number of subcuticular coralloid infection hyphae differed on resistant and susceptible hosts. On susceptible hosts, the majority of coralloid hyphae were large (>100 mu m long at 21 days). Resistant hosts had the same density of coralloid hyphae (approximately 300 hyphae per cm(2)), but the majority were small (",
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    The expression of resistance to latent stem infection by Diaporthe toxica in narrow-leafed lupin. / Shankar, Manisha; Cowling, W.A.; Sweetingham, M.W.

    In: Phytopathology, Vol. 86, 1996, p. 692-697.

    Research output: Contribution to journalArticle

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    T1 - The expression of resistance to latent stem infection by Diaporthe toxica in narrow-leafed lupin

    AU - Shankar, Manisha

    AU - Cowling, W.A.

    AU - Sweetingham, M.W.

    PY - 1996

    Y1 - 1996

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    AB - Resistance to latent infection by Diaporthe toxica was examined in resistant acid susceptible cultivars and breeding lines of Lupinus angustifolius (narrow-leafed lupin or blue lupine). Conidial germination (91 +/- 1% at 3 days after inoculation) or penetration of the cuticle (14 +/- 1% at 3 days and 24 +/- 1% at 5 days) by D. toxica were not affected by host resistance. After 5 days, the relative size and number of subcuticular coralloid infection hyphae differed on resistant and susceptible hosts. On susceptible hosts, the majority of coralloid hyphae were large (>100 mu m long at 21 days). Resistant hosts had the same density of coralloid hyphae (approximately 300 hyphae per cm(2)), but the majority were small (

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