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
Photo Gallery
P. agathidicida oospores |
P. megakarya oospore
P. megakarya oogonia, oospore, and antheridium
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P. pluvialis - appearance of new growth Tufted appearance of new growth from surviving buds on Douglas-fir, one year after defoliation. |
P. cambivora sporangium with nested proliferation Empty sporagia showing internal nested proliferation |
Growth of P. megakarya on V8 agar Growth of P. megakarya on V8 agar |
P. alni symptoms on European Alder Mature, riparian common alder (A. glutinosa) stand heavily impacted by root and collar rot caused by P. alni |
P. agathidicida oospores in planta 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). |
P. tentaculata disease symptoms on sticky monkey flower Crown and root rot (left) on sticky monkey flower (Diplacus aurantiacus) compared with a control (right) |
Chlamydospore of P. lateralis Terminal chlamydospore on a short side stalk |
P. palmivora oogonium P. palmivora oogonium |
Phytophthora cactorum disease symptoms on English walnut Dieback of Juglans regia caused by Phytophthora cactorum |
P. cactorum colony morphology on PDA Colony morphology on PDA at 14 days |