Bole lesion on Chaemacyparis lawsoniana in Lopérec, France
Photo Gallery
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P. lateralis on Port Orford cedar  |
P. nemorosa colony morphology on V8  Colony morphology on V8 at 14 days |
P. alni basal canker on European Alder  P. alni basal canker on European Alder (Alnus glutinosa) |
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P. cambivora coralloid irregular hyphae  Coralloid irregular hyphae |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |
P. agathidicida oospores in planta  Oospores 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 (scale bar =100 µm). |
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P. arenaria sporangia  Typical ovoid papillate sporangia of Phytophthora arenaria on V8 agar flooded with soil extract |
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. ramorum sporangia and chlamydospores  Sporangia and chlamydospores of P. ramorum |
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P. ramorum Dieback and shoot blight on Grand fir  Dieback and shoot blight symptoms caused by P. ramorum on Abies grandis |
Growth of P. megakarya on V8 agar  Growth of P. megakarya on V8 agar |
P. pseudotsugae amphigynous oogonium  P. pseudotsugae oogonium with amphigynous antheridia |