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. megasperma colony morphology on PDA Colony morphology on PDA at 7 days |
P. boehmeriae oogonia Oogonia and oospores with amphigynous antheridia |
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P. lateralis on Port Orford Cedar Horticultural planting of Port-Orford cedar, photo from USDA Forest Service, Dorena Genetic Resource Center |
P. palmivora oogonium P. palmivora oogonium |
P. cambivora colony morphology on MA Rosacous colony morphology at 14 days at 20°C on MA |
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P. pluvialis on Pinus radiata in New Zealand A stand of Pinus radiata trees affected by red needle cast disease. Note the reddish appearance of affected trees prior to needle drop. |
P. cinnamomi on Jarrah Dieback in Jarrah, Western Australia |
Chlamydospore of P. lateralis Laterally intercalary chlamydospore of Phytophthora lateralis |
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Necrotic lesion in phloem caused by P. austrocedrae Necrotic lesion in phloem with resin pocket caused by P. austrocedrae |
P. cactorum oogonium Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
Phytophthora chlamydospora sporangium Phytophthora chlamydospora sporangia in water, showing internal proliferation. Bar is 20 µm. |


