2001
DOI: 10.1046/j.1365-3059.2001.00643.x
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Root infection by Phytophthora cinnamomi in seedlings of three oak species

Abstract: The combination of soil infestation with Phytophthora cinnamomi and repetitive flooding was studied on 1-year-old plants of Quercus ilex (holm oak) and Q. suber (cork oak). In a second experiment, using 2-year-old plants of the same species and of red oak (Q. rubra), the soil infestation was followed by two drought-rewatering cycles. Oak predawn leaf water potential (PLWP) and stomatal conductance (gs) were monitored during both experiments. Root infection, root loss, wilting and mortality were assessed at the… Show more

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Cited by 77 publications
(80 citation statements)
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“…Notably, however, regarding the symptoms observed in the roots, we found differences between the species. In the Q. ilex seedlings inoculated with P. cinnamomi, there was a sharp reduction in the development of new roots, as shown in other studies (Robin et al 2001;Moralejo et al 2009). In contrast, after inoculation, Q. suber seedlings developed a larger number of secondary roots; these were longer, but thinner than those in control and had a lower overall weight.…”
Section: Discussionsupporting
confidence: 81%
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“…Notably, however, regarding the symptoms observed in the roots, we found differences between the species. In the Q. ilex seedlings inoculated with P. cinnamomi, there was a sharp reduction in the development of new roots, as shown in other studies (Robin et al 2001;Moralejo et al 2009). In contrast, after inoculation, Q. suber seedlings developed a larger number of secondary roots; these were longer, but thinner than those in control and had a lower overall weight.…”
Section: Discussionsupporting
confidence: 81%
“…Infection seems to trigger a decrease in leaf water potential, inoculated seedlings having lower values than controls. Hence, we confirm that infection by P. cinnamomi is associated with a reduction in water potential in both Q. ilex (Robin et al 2001) and Q. suber (Luque et al 1999). Other authors suggest that the stress suffered by seedlings due to flood-drought cycles also contributes to the reduction in water potential, although to a lesser extent than infection (Robin et al 2001).…”
Section: Discussionsupporting
confidence: 79%
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