Sporangia and chlamydospores of P. ramorum
Photo Gallery
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P. ramorum sporangia and chlamydospores  |
P. tentaculata disease symptoms on California mugwort  Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant). |
P. tentaculata oospores and antheridia  Paragynous antheridium attached to oogonium with oospore |
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P. cinnamomi on Fraser fir  Frasier fir Christmas trees, North Carolina |
P. katsurae sporangia  Papillate, non-caducous sporangium with differentiated content; photo used with permission from Q-bank |
P. pinifolia colony morphology on PDA  Colony pattern after 7 days on PDA at 24C, photo from Q-bank, used with permission. |
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P. cryptogea hyphal swellings  Cluster of small, angular to globose hyphal swellings formed in water |
P. pinifolia sporangium  Cysts remain in sporangium after discharge, photo from Q-bank, used with permission |
P. alni basal canker on European Alder  P. alni basal canker on European Alder (Alnus glutinosa) |
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P. frigida symptoms 3  Black wattle bark with symptoms of gummosis |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |