Grove of dying trees in a commercial landscape in Foster City, CA
Photo Gallery
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P. siskiyouensis disease symptoms on Italian alder  |
P. alni sporangia  Non-papillate sporangia of P. alni showing nested proliferation. |
P. alni subsp alni sporangium  Non-papillate, non caducous sporangium, photo used with permission from Q-bank |
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P. cambivora colony morphology on MA  Rosacous colony morphology at 14 days at 20°C on MA |
P. nicotianae sporangia  P. nicotianae overview of sporangia 40x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. arenaria hyphal swellings  Catenulate, globose to subglobose hyphal swellings, some of them with radiating hyphae scale bar = 50 μm. |
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P. pinifolia on Pinus radiata  Pinus radiata impacted by DFP, note healthy new growth |
P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm. |
P. pseudosyringae colony morphology on PDA  Colony morphology on PDA at 14 days |
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P. austrocedrae - necrotic lesion in phloem  |
P. katsurae oogonia  Oogonia with ornamentation |
P. kernoviae oogonia  Mycol.Res 109, 853-859; Representative oogonia, antheridia and thick walled plerotic oospores of Phytophthora kernoviae. |