Sympodial sporangiophore with external proliferation
Photo Gallery
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P. lateralis sporangia  |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
P. cambivora sporangium with sympodial proliferation  Empty sporagium showing sympodial proliferation |
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P. lateralis on Port Orford cedar  Collar lesion on Chaemacyparis lawsoniana in Landrévarzec, France |
Port Orford Cedar Hedge row  Chamaecyparis lawsoniana residential hedge row with alive and dead trees |
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. tentaculata sporangium  Papillate sporangium of P. tentaculata |
P. cambivora colony morphology on MA  Appressed colony morphology at 14 days at 20°C on MA |
P. arenaria oogonium  Aplerotic oogonia of P. arenaria with paragynous antheridia. Scale bar = 20 μm |
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P. palmivora symptoms on fruit  Brown rot on a lemon fruit caused by Phytophthora palmivora. |
Mat to control spread of P. agathidicida  Jogger running over a plastic-reinforced, foam-mat containing a 2% solution of Trigene™ Advance (quaternary ammonium compound) as part of a cross-country event, in the Waitakere Regional Park |
P. agathadicida disease symptom  Excavated lesion, with outer bark removed showing extent of disease-front |