Noncaducous sporangia showing ovoid shape and papillate condition
Photo Gallery
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P. frigida sporangia  |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
P. cinnamomi cork oak decline  Cork oak decline, Portugal |
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P. pseudotsugae colony morphology on V8  P. pseudotsugae colony growth on V8 agar |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
P. cambivora colony morphology on PDA  Appressed colony morphology at 14 days at 20°C on PDA |
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P. cinnamomi hyphal swelling  P. cinnamomi hyphal swelling (or thin walled chlamydospores) |
P. cactorum sporangium  P. cactorum sporangium |
P. nicotianae oogonia  P. nicotianae oogonia 100x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
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P. frigida sporangia  Noncaducous sporangia showing ovoid shape and papillate condition |
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. pinifolia hyphal growth  P. pinifolia pathogen growing from infected needle on selective agar |