P. pluvialis symptoms of red needle cast on Douglas-fir, western Oregon 2015
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P. pluvialis symptoms on Douglas-fir |
P. cambivora disease symptoms Dead and dying chinquapin infected with P. cambivora |
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). |
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P. cambivora oogonium P. cambivora oogonium with antheridium |
P. boehmeriae oogonium Oogonia and oospores with amphigynous antheridia |
P. cambivora colony morphology on MA Uniform fluffy colony morphology at 14 days at 20°C on MA |
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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. frigida sporangia Noncaducous sporangia showing ovoid shape and papillate condition |
P. pseudotsugae sporangia Broadly ovoid, papillate sporangia in water |
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P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica) |
P. cinnamomi sporangium P. cinnamomi sporangium |
P. kernoviae canker Bole lesion on Fagus sylvatica |


