P. agathidicida oogonia with SEM (top) and light microscopy (bottom)
Photo Gallery
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P. agathidicia oogonia  |
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). |
P. pluvialis on Pinus radiata in New Zealand  A Pinus radiata needle showing faded olive- or khaki- coloured lesions consistent with the presence of red needle cast disease. Arrow shows resinous bands within the extended olive lesion. |
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P. chlamydospora hyphal swellings  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.
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P. kernoviae disease on beech  External lesion; 14 November 2003 |
P. katsurae sporangia  Papillate, non-caducous sporangia; photo used with permission from Q-bank |
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P. palmivora oogonium  P. palmivora oogonium |
P. cactorum colony morphology on PDA  Colony morphology on PDA at 14 days |
P. nicotianae sporangia  P. nicotianae overview of sporangia 40x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
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P. ramorum sporangia  P. ramorum sporangia |
Growth of P. arenaria on CA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on carrot agar |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |