Oogonium with amphigynous antheridia, photo from Q-bank, used with permission
Photo Gallery
P. kernoviae oogonium |
P. pluvialis sporangium Sporangium showing typical ovoid shape and semi-papillate condition |
P. cactorum oogonium Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. cinnamomi on Fraser fir Frasier fir Christmas trees, North Carolina |
Growth of P. arenaria on half-strength PDA Colony morphology of Phytophthora arenaria after 7 days at 20°C on half-strength PDA |
P. cinnamomi colony morphology on V8 P. cinnamomi colony growth on V8 at 14 days |
P. kernoviae colony morphology From Mycol.Res 109, 853-859; growth on CA under different conditions |
P. alni symptoms on European Alder Mature, riparian common alder (A. glutinosa) stand heavily impacted by root and collar rot caused by P. alni |
P. nicotianae chlamydospore Globose chlamydospore (Fitopatol. bras. 2005) |
P. pinifolia on Pinus radiata Pinus radiata needles, note “black line” symptom near needle bases |
P. tentaculata disease symptoms on California mugwort Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant). |
P. pluvialis symptoms on Douglas-fir Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |