Terminal chlamydospore of P. palmivora
Photo Gallery
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P. palmivora chlamydospore  |
P. arenaria sporangia  Typical ovoid papillate sporangia of Phytophthora arenaria on V8 agar flooded with soil extract |
P. kernoviae colony morphology on CMA PARPH  Organism grown on CMA PARP[H]; Plant disease 70, 1038-1043 |
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Port Orford cedar seedlings  Raised beds for testing disease resistance of Port-Orford-cedar seedlings at the Dorena Genetic Resource Center |
Sporangia showing ovoid and ovoid to spherical shape and papillate condition sporangia  Sporangia showing ovoid and ovoid to spherical shape and papillate condition |
P. pinifolia on Pinus radiata needles  Pinus radiata needles, note “black line” symptom near needle bases |
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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. cambivora active lesion on chinquapin  P. cambivora active lesion on chinquapin |
P. pinifolia colony morphology on V8  Colony morphology of P. pinifolia at 20°C on V8 after 3 weeks. From Duran et al. 2008 |
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P. pseudotsugae paragynous oogonium  P. pseudotsugae oogonium with paragynous antheridia, note the disrupted contents of the abortive oogonia |
P. siskiyouensis disease symptoms on Italian alder  Phytophthora collar rot on Italian alder trees: standing, dead tree |
P. arenaria hyphal swellings  Catenulate, globose to subglobose hyphal swellings, some of them with radiating hyphae scale bar = 50 μm. |