Name and publication
Phytophthora ukrainensis I. Milenković, T. Jung, T. Corcobado, I. Matsiakh (2022)
Jung T, Milenković I, Corcobado T. et al. 2022. Extensive morphological and behavioural diversity among fourteen new and seven described species in Phytophthora Clade 10 and its evolutionary implications. Persoonia-Molecular Phylogeny and Evolution of Fungi 49: 1–57.
Name refers to the origin of most known isolates in Ukraine.
Type: Ukraine, Lviv region, Ivano-Frankove, isolated from a naturally fallen Quercus leaf in the Vereshchytsia River, Aug. 2019, I. Milenković, T. Corcobado & I. Matsiakh, holotype HNHM-MYC-009710, dried culture on V8A, Herbarium of the Hungarian Natural History Museum, Budapest
Ex-type: culture CBS 148851 = NRRL 64255 = UA373
Sequences for ex-type in original manuscript: LSU ON000711, ITS ON000805, β-tubulin OM975984, hsp90 OM976501, tigA OM974679, rpl10 OM97539, enolase OM976596, cox1 ON013872, ypt1 ON025022, nadh1 OM976981, rps10 OM976740
Position in ITS phylogenetic tree
Colonies and cardinal temperatures
Colony morphology submerged and radiate on CA, submerged and striate on V8A, and stoloniferous and dense felty on PDA. Optimum growth temperature 20°C and maximum 32.5°C.
Conditions for growth and sporulation
Sporangia were nonpapillate, persistent, and predominantly ovoid and obpyriform in shape. Sporangia averaged 35.9 x 26.2 µm (overall range 26.3–58.2 x 18.7–36.3 µm), proliferation internal, nested, and extended. Sporangiophores unbranched. Hyphae coralloid; hyphal swellings present. Chlamydospores absent.
Sterile in culture.
Most typical characters
Additional specimen(s) evaluated
Sweden, Kiruna area, isolated from forest stream, Sept. 2017, I. Milenković & T. Corcobado, SW154. Ukraine, Lviv region, Ivano-Frankove, isolated from naturally fallen Quercus leaves in the Vereshchytsia River, Aug. 2019, I. Milenković, T. Corcobado & I. Matsiakh, UA376, UA430, UA431, UA432, UA433.
Hosts and distribution
Distribution: Ukraine, Sweden
Substrate: forest stream
Disease note: no known disease
Host: no known host
Additional references and links
Fact sheet author
Treena Burgess, Ph.D., Phytophthora Science and Management, Harry Butler Institute, Murdoch University