Name and publication
Phytophthora pseudokernoviae T. Jung, M. Horta Jung, A. Durán & E. Sanfuentes (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 morphological similarity to P. kernoviae.
Type: Chile, Parque Oncol, isolated from a naturally fallen necrotic leaf of Drimys winteri in a Valdivian rainforest,, Nov. 2014, T. Jung, A. Durán & E. Sanfuentes, holotype HNHM-MYC-009707, dried culture on V8A, Herbarium of the Hungarian Natural History Museum, Budapest
Ex-type: culture CBS 148796 = NRRL 64351 = CL012
Sequences for ex-type in original manuscript: LSU ON000686, ITS ON000780, β-tubulin OM975959, hsp90 OM976476, tigA OM974653, rpl10 OM974513, tef-1a OM984939, enolase OM976570, cox1 ON013846, ypt1 ON024996, nadh1 OM976955, rps10 OM976714
Position in ITS phylogenetic tree
Colonies and cardinal temperatures
Colony morphology appressed uniform to faintly striate on V8A and faintly radiate on CA, dense-woolly and faintly petaloid on PDA. Optimum growth temperature 15°C and maximum 25°C.
Conditions for growth and sporulation
Sporangia were papillate, caducous, and predominantly ovoid in shape. Sporangia averaged 42.7 x 29.7 µm (overall range 30.5–55.0 x 21.3–35.7 µm), external proliferation. Sporangiophores dense sympodia. Hyphal swellings rare. Chlamydospores absent.
Most typical characters
Additional specimen(s) evaluated
Chile, Parque Oncol, isolated from a naturally fallen necrotic leaf of D. winteri in a Valdivian rainforest, Nov. 2014, T. Jung, A. Durán & E. Sanfuentes, CL013; isolated from a stream running through a Valdivian rainforest using a Nothofagus obliqua leaf as bait, CL156.
Hosts and distribution
Substrate: fallen leaves and 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