Oospores in the roots of kauri seedlings inoculated with P. agathidicida. The root has been cleared with potassium hydroxide and bleached with peroxide before being stained with trypan blue (scale bar =100 µm).
Photo Gallery
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P. agathidicida oospores in planta  |
P. ramorum oogonium  Oogonium with thick oogonial wall, photo from Q-bank, used with permission |
P. ramorum sporangia and chlamydospores  Sporangia and chlamydospores of P. ramorum |
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P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. megakarya disease symptoms on Theobroma cacao
Symptoms of black pod disease of cocoa (T. cacao)
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P. ramorum on larch in the United Kingdom  Larch trees with P. ramorum in the UK |
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Basal canker on Port Orford Cedar stump  |
P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
Austrocedrus associated with Mal del ciprés.  Austrocedrus with basal resin flow associated with Mal del ciprés. |
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P. pinifolia on Pinus radiata  Pinus radiata stand, note Defoliation and regrowth |
P. ramorum sporangium  Deciduous sporangium, photo from Q-bank, used with permission |
P. nicotianae colony morphology on CMA  Phytophthora nicotianae CBS 321.49 CMA after 7 days at 24 degrees. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |