Oogonium with thick oogonial wall, photo from Q-bank, used with permission
Photo Gallery
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P. ramorum oogonium  |
P. pinifolia on Pinus radiata  Pinus radiata dead needles caused by DFP with healthy new growth from DFP |
P. tentaculata on V-8 media  Culture of P. tentaculata on V-8 media |
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P. ramorum sporangia  P. ramorum sporangia |
P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
P. cambivora disease symptoms  Collar canker rot of Ink disease on sweet chestnut |
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P. cryptogea colony morpholgy on V8  Colony morphology on V8 at 14 days |
P. alni oogonia  Smooth-walled oogonium of P. alni (Swedish variant) with oospore and amphigynous antheridium. |
P. cambivora sporangium  Ovoid non-papillate sporangia with well-rounded base and simple sporangiophore |
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P. megakarya disease symptoms on Theobroma cacao fruit  Disease symptoms on a cocoa pod |
P. pinifolia sporangia  Sporangium with internal proliferation, photo from Q-bank, used with permission. |
P. agathidicida oospores  Oospores of P. agathidicida 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 |