Colony morphology of P. austrocedrae at 16 C after four weeks on PDA
Photo Gallery
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P. austrocedrae - Mal del ciprés, stages of decline  |
P. pluvialis on Pinus radiata in New Zealand  A stand of Pinus radiata trees affected by red needle cast disease. Note that frequently only the lower part of the crown is affected. |
P. tentaculata chlamydospore  P. tentaculata chlamydospore with short hyphal projection |
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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. boehmeriae symptoms  Symptoms of gummosis on black wattle (Acacia mearnsii) |
P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |
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Dying Port Orford Cedar trees  Dead Chamaecyparis lawsoniana trees |
P. agathidicida lesion on kauri tree  Advancing triangular lesion extending up the trunk of an 80 cm DBH kauri tree in the Huia Dam Site along Twin Peaks Track, Waitakere Regional Park |
Growth of P. arenaria on half-strength PDA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on half-strength PDA |
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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. pseudotsugae sporangia  Broadly ovoid, papillate sporangia in water |
P. agathidicia sporangia  Differentiation of the cytoplasm within papillate sporangia into acid fuchsin stained zoospores |