Canker on Fagus sp. caused by Phytophthora cactorum.
Photo Gallery
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Phytophthora cactorum canker on beech tree  |
Black pod disease of cacao  Symptom of black pod disease of cacao (T. cacao) caused by P. palmivora |
P. katsurae sporangia  Papillate, non-caducous sporangia; photo used with permission from Q-bank |
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P. pinifolia colony morphology on CMA-NARP  Colony morphology of P. pinifolia at 20°C on CMA-NARP after 3 weeks. From Duran et al. 2008 |
P. agathidicida oospores  Oospores of P. agathidicida in the roots of kauri seedlings inoculated with P. agathidicida. The root has been cleared with potassium hydroxide and bleached with peroxide, before being stained with Trypan Blue |
Healthy Port Orford Cedar tree  Healthy Chamaecyparis lawsoniana trees |
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P. arenaria oogonium  Aplerotic oogonia of P. arenaria with paragynous antheridia. Scale bar = 20 μm |
P. agathidicida growth on MEA  Diffuse, non-patterned, colony morphology of ICMP 16471 (the original “Gadgil isolate”) after 10-days incubation at 20°C in the dark |
Dead Port Orford Cedar trees  Dead Chamaecyparis lawsoniana trees along road |
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P. ramorum zoospores  Sporangium of P. ramorum releasing zoospores |
P. chlamydospora hyphal swellings  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.
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P. kernoviae oogonia  Oogonium with amphigynous antheridia, photo from Q-bank, used with permission |