Broadly ovoid, papillate sporangia in water.
Photo Gallery
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P. cactorum sporangia  |
Phytophthora taxon Agathis bole canker  Kauri tree in New Zealand with disease symptoms |
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
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P. siskiyouensis disease symptoms on Italian alder  Grove of dying trees in a commercial landscape in Foster City, CA |
P. cambivora colony morphology on PDA  Uniform fluffy colony morphology at 14 days at 20°C on PDA |
P. ramorum zoospores  Sporangium of P. ramorum releasing zoospores |
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P. austrocedrae colony morphology on PDA  Colony morphology of P. austrocedrae at 16 C after four weeks on PDA |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
P. pinifolia on Pinus radiata  Pinus radiata dead needles caused by DFP with healthy new growth from DFP |
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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). |
P. pinifolia colony morphology on CMA-NARP  Colony morphology of P. pinifolia at 20°C on CMA-NARP after 3 weeks. From Duran et al. 2008 |
P. lateralis on Port Orford cedar  Small root lesions on Chaemacyparis lawsoniana |