Canker on Fagus sp. caused by Phytophthora cactorum.
Photo Gallery
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Phytophthora cactorum canker on beech tree  |
P. austrocedrae irregular sporangium  P. austrocedrae - irregular sporangium with lateral attachment and swelling in sporangiophore |
P. ramorum sporangia and chlamydospores  Sporangia and chlamydospores of P. ramorum |
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P. cinnamomi on Jarrah  Dieback in Jarrah, Western Australia |
P. nicotianae oogonia  P. nicotianae oogonia 100x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. lateralis on Port Orford cedar  Lesion caused by aerial infection on Chaemacyparis lawsoniana in Lopérec, France |
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P. cryptogea colony morpholgy on V8  Colony morphology on V8 at 14 days |
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. agathidicia oogonia  Light micrograph of P. agathidicida oospore (Scale bar equals 15 µm) |
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P. pinifolia sporangia  Non- papillate and caducous sporangia of Phytophthora pinifolia isolated from the infected P. radiata needles. |
P. lateralis sporangia  Sympodial sporangiophore with external proliferation |
P. palmivora oogonium  P. palmivora oogonium |