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Uromyces Viciae-fabae Haustorium Formation in Susceptible and Resistant Faba Bean Lines

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Abstract

Haustorium formation by the faba bean rust (Uromyces viciae-fabae) was studied on susceptible and resistant faba bean lines. The resistant lines showed incomplete resistance, based on late acting hypersensitivity or on non-hypersensitive resistance acting before haustorium formation. Histological observations on infected leaves showed that both the number of haustoria per infection unit and their developmental stage was reduced in both resistant lines. Isolation of haustoria confirmed that both the number and the size of haustoria were reduced in resistant lines, irrespective of whether the resistance was associated with hypersensitivity. Plant age had no detectable effect on both parameters.

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Authors and Affiliations

  1. Instituto de Agricultura Sostenible, CSIC, Apdo. 4084, E-14080, Córdoba, Spain

    D. Rubiales

  2. Dep. Mejora y Agronomía, CIFA, Apdo. 3092, E-14080, Córdoba, Spain

    J.C. Sillero

Authors
  1. D. Rubiales
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  2. J.C. Sillero
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Rubiales, D., Sillero, J. Uromyces Viciae-fabae Haustorium Formation in Susceptible and Resistant Faba Bean Lines. European Journal of Plant Pathology 109, 71–73 (2003). https://doi.org/10.1023/A:1022041106262

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  • DOI: https://doi.org/10.1023/A:1022041106262

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