Sporangium with internal proliferation, photo from Q-bank, used with permission.
Photo Gallery
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P. pinifolia sporangia  |
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 |
P. pseudosyringae colony morphology on PDA  Colony morphology on PDA at 14 days |
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Mal del ciprés, dead and dying trees along river  Mal del ciprés, dead and dying trees along river |
P. pluvialis on Pinus radiata in New Zealand  Typical red needle cast symptoms along a twig. Lesions begin at the base of the needle which subsequently turns brown and is cast from the twig. |
P. ramorum colony morphology on V8  P. ramorum colony morphology on V8 |
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P. cactorum colony morphology on PDA  Colony morphology on PDA at 14 days |
Vehicle washing  Truck washing to avoid spread of P. lateralis |
P. nemorosa colony morphology on PDA  Colony morphology on PDA at 14 days |
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P. cambivora sporangium with internal extended proliferation  Empty sporangia showing internal extended proliferation |
P. tentaculata disease symptoms on California mugwort  Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant). |
P. lateralis on Port Orford cedar  Root lesions on Chaemacyparis lawsoniana |