Name and publication
Phytophthora europaea Hansen & Jung (2002)
Jung T, Hansen EM, Winton L, Osswald W, and Delatour C. 2002. Three new species of Phytophthora from European oak forests. Mycol. Res. 106: 397–411.
Corresponding author: email@example.com
from Jung et al. (2002)
‘Europaea’ commemorates the international research project supported by the European Union (‘Pathoak’ FAIR 5-CT97±3926) during which most isolates used for this species description were recovered.
Type: FRANCE, Lorraine, Forêt d'Amance, isolated from rhizosphera of Quercus robur, April 1998, T. Jung (OSC 86347)
Ex-type: CBS 109049, IFB-EUR 2
Sequences for ex-type in original manuscript: Phytophthora europaea CBS 109049, IFB-EUR 2 = ITSrDNA AF449493
Ex-type in other collections
Voucher sequences for barcoding genes (ITS rDNA and COI) of the ex-type (see Molecular protocols page)
Sequences for ex-type in other sources
- NCBI: Phytophthora europaea CPHST BL 37G
- NCBI: Phytophthora europaeae P10324
- NCBI: Phytophthora europaeae CBS 109049
- Phytophthora DATABASE: Phytophthora europaea PD_00082 = P10324 WPC
- EPPO-Q-bank: Phytophthora europaea CBS 109049
- BOLDSYSTEMS: Phytophthora europaea PHYTO031-10 = P10324 (barcoding COI & ITS)
Position in ITS phylogenetic tree
adapted from Jung et al. (2002)
Colonies and cardinal temperatures
Colony morphology after 7 days on PDA, V-8, and MEA with no distinct pattern. Minimum growth temperature 3°C, optimum 21°C, and maximum 27°C.
Conditions for growth and sporulation
Sporangia nonpapillate, persistent, ellipsoid, ovoid, and obpyriform (35–81 x 19–38 µm) sometimes exhibiting a tapering base, with internal and often nested proliferation. Sporangia often originated in long, sparingly branched sporangiophores widening to the point of attachment, occasionally sympodial. Hyphal swellings irregular, mostly elongated and catenulated. Chlamydospores absent.
Homothallic. Oogonia smooth-walled (21–53 µm diam.), usually exhibiting a tapering and curved base, oogonial stalks and base of oogonium sometimes with spines or digitate projections; antheridia paragynous, sometimes with spine or digitate projections (10–23 L x 10–18 W 32 µm); oospores plerotic and sometimes aplerotic (20–38 µm diam.), subglobose and ellipsoid oospores occur relatively frequently. Oospores often turning golden-brown when ageing.
Most typical characters
Additional specimen(s) evaluated
Hosts and distribution
Distribution: Europe (France, Germany), North America (USA)
Substrate: soil, roots
Disease note: not associated with symptoms of oak decline; weakly aggressive to seedlings, isolated from necrotic lesion on alder root
Hosts: Quercus spp. (Fagaceae), Alnus rubra (Betulaceae)
Retrieved January 30, 2018 from U.S. National Fungus Collections Nomenclature Database.
Additional references and links
- Phytophthora DATABASE: Phytophthora europaea
- EPPO-Q-bank: Phytophthora europaea
- SMML USDA-ARS: Phytophthora europaea
- EPPO Global Database: Phytophthora europaea
- Forest Phytophthoras of the world: Phytophthora europaea
- CABI Invasive Species Compendium: Phytophthora europaea
- Encyclopedia of Life (EOL): Phytophthora europaea
- Index Fungorum (IF): Phytophthora europaea
- Plantwise Knowledge Bank: Phytophthora europaea
- Google All Phytophthora europaea
- Google Images Phytophthora europaea
- Google Scholar Phytophthora europaea
Fact sheet author
Z. Gloria Abad, Ph.D., USDA-APHIS-PPQ-S&T Beltsville Laboratory, United States of America