P. alni in alder, Illwald, France
Photo Gallery
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P. alni in alder, Illwald, France  |
P. cinnamomi on Banksia  Dead and dying Banksia, Western Australia |
P. palmivora symptoms on fruit  Brown rot on a lemon fruit caused by Phytophthora palmivora. |
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P. pluvialis on Pinus radiata in New Zealand  A Pinus radiata needle showing faded olive- or khaki- coloured lesions consistent with the presence of red needle cast disease. Arrow shows resinous bands within the extended olive lesion. |
P. chlamydospora hyphal swellings  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.
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P. lateralis on Port Orford cedar  Atypical decline caused by aerial infections in Scaër, France |
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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. pluvialis hyphal swellings  P. pluvialis hyphal swellings on agar |
P. chlamydospora colony morphology on V8 agar  P. chlamydospora colony morphology on V8 agar |
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P. pluvialis on Pinus radiata in New Zealand  Pinus radiata needles showing colour changes following infection with red needle cast disease. The tissues around the initial infection at the base or along the needle senesce, and change yellow and then brown as indicated by the arrows before the needles cast. |
P. nicotianae sporangia  P. nicotianae overview of sporangia 40x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. cambivora sporangium with internal extended proliferation  Empty sporagia showing internal nested and extended proliferation |