P. agathidicida oogonia with SEM (top) and light microscopy (bottom)
Photo Gallery
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P. agathidicia oogonia  |
P. cambivora older hyphae  Old septate hyphae |
P. lateralis on Port Orford cedar  Collar lesion on Chaemacyparis lawsoniana in Landrévarzec, France |
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P. kernoviae leaf wilt  Wilted leaf of infected rhododendron |
P. cinnamomi on Jarrah  Dieback in Jarrah, Western Australia |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
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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 |
Dead and healthy Port-Orford cedar trees  Chamaecyparis lawsoniana trees |
P. pluvialis on Pinus radiata in New Zealand  A Pinus radiata needle showing faded olive- or khaki- coloured lesions consistent with the presence of red needle cast disease. Arrow shows resinous bands within the extended olive lesion. |
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P. pluvialis hyphal swellings  P. pluvialis hyphal swellings on agar |
P. ramorum zoospores  Sporangium of P. ramorum releasing zoospores |
P. austrocedrae irregular sporangium  P. austrocedrae - irregular sporangium with lateral attachment and swelling in sporangiophore |