Oogonia with ornamentation
Photo Gallery
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P. katsurae oogonia  |
P. pinifolia on Pinus radiata  Pinus radiata stand, note Defoliation and regrowth |
Growth of P. arenaria on MEA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on malt extract agar |
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P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
P. frigida symptoms 1  Symptoms of gummosis on black wattle |
P. agathidicida lesion on kauri tree  Close up of gum oozing out of lower trunk lesions of a young kauri tree at Maungaroa Ridge, Piha region of Waitakere Regional Park |
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P. tentaculata disease symptoms on California mugwort  Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant). |
Austrocedrus associated with Mal del ciprés.  Austrocedrus with basal resin flow associated with Mal del ciprés. |
P. boehmeriae oogonium  Oogonia and oospores with amphigynous antheridia |
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P. pseudotsugae sporangium  Broadly ovoid, papillate sporangium in water |
P. cinnamomi sporangium  P. cinnamomi sporangium |
P. lateralis on Port Orford cedar  Dying Chaemacyparis lawsoniana trees in Lopérec, France. |