Bleeding canker on red oak (Quercus rubra)
Photo Gallery
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P. cactorum bleeding canker  |
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 |
P. cinnamomi hyphal swellings  P. cinnamomi hyphal swellings (or thin walled chlamydospores) |
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P. tentaculata microscopic characteristics  Hyphal swellings occuring at branching points of Mycelium (A), Intercalary hyphal swellings (B), Chlamydospore (C ), Sporangia (D) |
P. austrocedrae colony morphology on Tomato juice agar with B sitosterol  Colony morphology of P. austrocedrae at 16 ºC after 4 weeks on Tomato juice agar with B sitosterol |
P. siskiyouensis oogonium with amphigynous antheridium  P. siskiyouensis oogonium with amphigynous antheridium |
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P. lateralis on Port Orford cedar  Localized branch infection of Chaemacyparis lawsoniana in Lopérec, France |
P. palmivora chlamydospore  Terminal chlamydospore of P. palmivora |
P. austrocedrae - hyphal swellings  Morphology of hyphae of Phytophthora austrocedrae, from Greslebin et al. 2007 |
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P. cinnamomi on Jarrah  Dieback in Jarrah, Western Australia |
P. austrocedrae semipapillate sporangium  P. austrocedrae - semipapillate sporangium with off-center attachment. |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |