Forest Pathology (2017) 47 (5 - 12363)

A. Lehtijärvi, A.G. Aday Kaya, S. Woodward, T. Jung and H.T. Dogmus Lehtijärvi (2017)
Oomycota species associated with deciduous and coniferous seedlings in forest tree nurseries of Western Turkey
Forest Pathology 47 (5 - 12363)
Abstract: Occurrence and pathogenicity of Oomycota species causing root rot were investigated in 10 forest tree nurseries in western Turkey. Soil samples (129 in total) taken from the rhizosphere of symptomatic seedlings were baited for Oomycota using young leaves of Quercus suber, Rhododendron simsii and R. ponticum. Oomycota (178 isolates) were obtained by culturing on selective media, and identified using morphological methods followed by PCR and sequencing of the ITS rDNA and cox1 regions. Phytophthora aff. cactorum, P. citricola sensu lato, P. crassamura, P. syringae, Pythium aphanidermatum, Py. intermedium, Py. irregulare, Py. ultimum and Phytopythium vexans were common amongst the isolates. The highest diversity of Oomycota was found in the forest nurseries at Adapazari-Hendek and Izmir-Torbali. Pathogenicity tests showed that the isolates caused lesions on a range of host plants. The importance of these nursery infections in transferring potentially damaging oomycete species to Turkish forests is discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Asko Lehtijärvi, Thomas Jung, Stephen Woodward

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytophthora syringae		Turkey
	Globisporangium ultimum		Turkey
	Pythium aphanidermatum		Turkey
	Globisporangium irregulare		Turkey
	Phytophthora citricola		Turkey
	Phytopythium vexans		Turkey
	Globisporangium intermedium		Turkey