Collar canker rot of Ink disease on sweet chestnut
Photo Gallery
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P. cambivora disease symptoms  |
P. pluvialis sporangium  Sporangium showing typical ovoid shape and semi-papillate condition |
P. ramorum on larch in the United Kingdom  Larch trees with P. ramorum in the UK |
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P. cinnamomi cork oak decline  Cork oak decline, Portugal |
P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
P. siskiyouensis bleeding canker  Bole lesions in the tissues under the bark of a bleeding canker: discoloration in the secondary phloem tissue |
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P. tentaculata microscopic characteristics  Hyphal swellings occuring at branching points of Mycelium (A), Intercalary hyphal swellings (B), Chlamydospore (C ), Sporangia (D) |
P. pinifolia sporangium  Cysts remain in sporangium after discharge, photo from Q-bank, used with permission |
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. lateralis on Port Orford cedar  Localized branch infection of Chaemacyparis lawsoniana in Lopérec, France |
P. megasperma sporangium  Ovoid, non-papillate sporangia |
P. cambivora colony morphology on PDA  Rosaceous colony morphology at 14 days at 20°C on PDA |