Photo Gallery

Port Orford cedar seedlings Raised beds for testing disease resistance of Port-Orford-cedar seedlings at the Dorena Genetic Resource Center	P. pluvialis hyphal swellings P. pluvialis hyphal swellings in water	P. lateralis sporangia Sympodial sporangiophore with external proliferation
P. chlamydospora colony morphology on carrot agar P. chlamydospora colony morphology on carrot agar	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. lateralis sporangia Sporangia of P. lateralis showing internal and external proliferation
P. cambivora sporangia Empty sporangia of P. cambivora showing nested internal proliferation	Comparative gametangial morphology of Phytophthora Clade 5 species Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015).	P. cambivora colony morphology on MA Appressed colony morphology at 14 days at 20°C on MA
P. ramorum sporangia and chlamydospores Sporangia and chlamydospores of P. ramorum	P. pinifolia hyphal growth P. pinifolia pathogen growing from infected needle on selective agar	P. pluvialis symptoms on Douglas-fir Red needle cast symptoms on Douglas-fir in western Oregon, 2015