European Journal of Plant Pathology (2019) 154, 215-225

Beatriz Mora-Sala, Paloma Abad-Campos and Mónica Berbegal (2019)
Response of Quercus ilex seedlings to Phytophthora spp. root infection in a soil infestation test
European Journal of Plant Pathology 154 (2), 215-225
Abstract: Phytophthora species are the main agents associated with oak (Quercus spp.) decline, together with the changing environmental conditions and the intensive land use. The aim of this study was to evaluate the susceptibility of Quercus ilex to the inoculation with eight Phytophthora species. Seven to eight month old Q. ilex seedlings grown from acorns, obtained from two Spanish origins, were inoculated with P. cinnamomi, P. cryptogea, P. gonapodyides, P. megasperma, P. nicotianae, P. plurivora, P. psychrophila and P. quercina. All Phytophthora inoculated seedlings showed decline and symptoms including small dark necrotic root lesions, root cankers, and loss of fine roots and tap root. The most aggressive species were P. cinnamomi, P. cryptogea, P. gonapodyides, P. plurivora and P. psychrophila followed by P. megasperma., while Phytophthora quercina and P. nicotianae were the less aggressive species. Results obtained confirm that these Phytophthora species could constituted a threat to Q. ilex ecosystems and the implications are further discussed.
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Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytophthora plurivora	Oak (Quercus)
	Phytophthora cinnamomi	Oak (Quercus)
	Phytophthora cryptogea	Oak (Quercus)
	Phytophthora megasperma	Oak (Quercus)
	Phytophthora quercina	Oak (Quercus)
	Phytophthora gonapodyides	Oak (Quercus)
	Phytophthora psychrophila	Oak (Quercus)