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).
Photo Gallery
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P. tentaculata disease symptoms on California mugwort  |
P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. tentaculata hyphae  Looping hyphae commonly seen with P. tentaculata on PARP media |
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P. pinifolia coenocytic hyphae  Coenocytic hyphae (from Duran et al. 2008). Scale bar = 20 μm. |
Stain from Port Orford Cedar root disease  Stain from Chamaecyparis lawsoniana root disease on the Smith River |
P. lateralis on Port Orford cedar  Bole lesion on Chaemacyparis lawsoniana in Lopérec, France |
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P. cambivora sporangium with internal extended proliferation  Empty sporagia showing internal nested and extended proliferation |
P. pinifolia colony morphology on V8  Colony morphology of P. pinifolia at 20°C on V8 after 3 weeks. From Duran et al. 2008 |
P. katsurae oogonium  Warty protuberances on oogonium |
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P. kernoviae sporangium  Papillate and caducous sporangium, photo from Q-bank, used with permission |
P. tentaculata chlamydospore  Terminal chlamydospore of P. tentaculata |
P. chlamydospora sporangium  Phytophthora chlamydospora sporangium in water. Bar is 20µm. |