Disease symptoms on a cocoa pod
Photo Gallery
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P. megakarya disease symptoms on Theobroma cacao fruit  |
P. pluvialis hyphal swellings  P. pluvialis hyphal swellings in water |
P. alni oogonium  Bullate oogonium of P. alni (German variant) with oospore and amphigynous antheridium. |
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P. tentaculata sporangium  Papillate sporangium of P. tentaculata |
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. katsurae disease symptoms  Infected chestnut (Castanea) with girdling canker |
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P. cactorum colony morphology on V8  Colony morphology on V8 at 14 days |
P. kernoviae disease on beech  External lesion; 14 November 2003 |
P. cinnamomi colony morphology on V8  P. cinnamomi colony growth on V8 at 14 days |
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P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |
P. megakarya sporangia (photo from Q-bank, used with permission).  P. megakarya sporangia |
P. alni symptoms on European Alder  Mature, riparian common alder (A. glutinosa) stand with high impact of Phytophthora root and collar rot. |