Dying Chaemacyparis lawsoniana trees in Lopérec, France.
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P. lateralis on Port Orford cedar  |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |
P. alni canker on gray alder  Grey alder (A. incana) with collar rot caused by P. alni |
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P. kernoviae oogonium  Oogonium with amphigynous antheridia, photo from Q-bank, used with permission |
P. austrocedrae - hyphal swellings  Morphology of hyphae of Phytophthora austrocedrae, from Greslebin et al. 2007 |
P. ramorum Dieback and shoot blight on Grand fir  Dieback and shoot blight symptoms caused by P. ramorum on Abies grandis |
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P. austrocedrae - necrotic lesion in phloem  |
Comparative gametangial morphology of Phytophthora Clade 5 species  Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015). |
P. arenaria disease symptoms on Banksia  Dead Banksia sp. in a Kwongan heathland on mineral sand near Eneabba, Western Australia recently killed by root and collar rot caused by Phytophthora arenaria |
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P. alni basal canker on European Alder  P. alni basal canker on European Alder (Alnus glutinosa) |
P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm. |
P. cinnamomi sporangium  P. cinnamomi sporangium |