Spherical hyphal swelling with radiating hyphae (from Duran et al. 2008). Scale bar = 20 μm.
Photo Gallery
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P. pinifolia hyphal swellings  |
Growth of P. palmivora on CMA  Growth of P. palmivora on corn meal agar |
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). |
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P. chlamydospora colony morphology on carrot agar  P. chlamydospora colony morphology on carrot agar |
P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm. |
P. arenaria hyphal swellings  Catenulate, globose to subglobose hyphal swellings, some of them with radiating hyphae scale bar = 50 μm. |
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Growth of P. arenaria on CA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on carrot agar |
Basal canker on Port Orford Cedar stump  |
P. agathidicida lesion on kauri tree  Gum oozing out of longitudinal lesion |
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P. austrocedrae - hyphal swellings  Morphology of hyphae of Phytophthora austrocedrae, from Greslebin et al. 2007 |
P. pluvialis on Pinus radiata in New Zealand  A stand of Pinus radiata trees affected by red needle cast disease. Note the reddish appearance of affected trees prior to needle drop. |
P. agathidicia oogonia  P. agathidicida oogonia with SEM (top) and light microscopy (bottom) |