Colony morphology on V8 at 14 days
Photo Gallery
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P. cactorum colony morphology on V8  |
P. kernoviae sporangium  Papillate and caducous sporangium, photo from Q-bank, used with permission |
P. alni subsp alni sporangium  Non-papillate, non caducous sporangium, photo used with permission from Q-bank |
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P. cinnamomi cork oak decline  Red oak with embedded lesions, France |
P. katsurae oogonium  Warty protuberances on oogonium |
P. megasperma sporangium  Ovoid, non-papillate sporangia |
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P. cambivora oogonium  P. cambivora oogonium with antheridium |
P. cambivora coralloid hyphae  Coralloid hyphae with hyphal swelling-like structures |
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. pinifolia on Pinus radiata  Pinus radiata, note Infected needles at right angles to stem |
P. tentaculata disease symptoms on California mugwort  Nursery grown California mugwort plant (Artemisia douglasiana) infected with P. tentaculata and exhibiting severe root and crown rot |
P. tentaculata disease symptoms on sticky monkey flower  Crown and root rot (left) on sticky monkey flower (Diplacus aurantiacus) compared with a control (right) |