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. nicotianae sporangia  |
P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |
P. katsurae oogonium  Micrograph of warty oogonium |
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P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
P. kernoviae disease on European beech  Bleeding lesion on trunk of Fagus sylvatica |
P. cambivora older hyphae  Old septate hyphae |
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P. chlamydospora sporangium  Phytophthora chlamydospora sporangium in water. Bar is 20µm. |
P. nemorosa sporangium  Ovoid, semi-papillate sporangium showing medium length pedicel. |
P. tentaculata disease symptoms on California mugwort  Nursery grown California mugwort plant (Artemisia douglasiana) infected with P. tentaculata and exhibiting severe root and crown rot |
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P. megasperma sporangia  Ovoid, non-papillate sporangia showing internal proliferation of sporangiophore |
P. nicotianae colony morphology on V8  Phytophthora nicotianae CBS 321.49 V8 after 7 days at 24 degrees. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. pseudotsugae amphigynous oogonium  P. pseudotsugae oogonium with amphigynous antheridia |