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).
Photo Gallery
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P. tentaculata disease symptoms on California mugwort  |
P. katsurae sporangia  Papillate, non-caducous sporangia; photo used with permission from Q-bank |
P. cambivora colony morphology on MA  Appressed stellate colony morphology at 14 days at 20°C on MA |
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P. cryptogea sporangia  Sporangiophore showing internal proliferation through empty sporangia after zoospore release |
P. kernoviae sporangium  Asymmetrical sporangium, photo from Q-bank, used with permission |
P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
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P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
P. ramorum sporangia and chlamydospores  Sporangia and chlamydospores of P. ramorum |
P. pinifolia coenocytic hyphae  Coenocytic hyphae (from Duran et al. 2008). Scale bar = 20 μm. |
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P. palmivora colony morphology on PDA  P. palmivora colony morphology on PDA |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
P. agathidicida sporangium  Globose to ovoid-ellipsoid, papillate sporangium |