Sporangia and chlamydospores of P. ramorum
Photo Gallery
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P. ramorum sporangia and chlamydospores  |
P. pseudosyringae colony morphology on PDA  Colony morphology on PDA at 14 days |
Austrocedrus associated with Mal del ciprés.  Austrocedrus with basal resin flow associated with Mal del ciprés. |
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P. alni symptoms on European Alder  Mature, riparian common alder (A. glutinosa) stand with high impact of Phytophthora root and collar rot. |
P. alni oogonium  Bullate oogonium of P. alni (German variant) with oospore and amphigynous antheridium. |
P. kernoviae oogonia  Mycol.Res 109, 853-859; Representative oogonia, antheridia and thick walled plerotic oospores of Phytophthora kernoviae. |
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P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
P. cambivora bole canker  Fagus sylvatica bole canker |
P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
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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. agathidicida oospores  Oospores of P. agathidicida in the roots of kauri seedlings inoculated with P. agathidicida. The root has been cleared with potassium hydroxide and bleached with peroxide, before being stained with Trypan Blue |
P. pluvialis sporangia.  P. pluvialis sporangia on tape peel from infected Douglas-fir needle. |