Oogonium with paragynous antheridia applied close to the ogonial stalk.
Photo Gallery
|
P. megasperma oogonium  |
P. ramorum sporangia and chlamydospores  Sporangia and chlamydospores of P. ramorum |
P. cinnamomi on Banksia  Death of woodland Banksia, Western Australia |
|
P. nicotianae hyphal swelling  P. nicotianae hyphal swellings in water 100x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
P. cinnamomi cork oak decline  Cork oak decline, Portugal |
|
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. pinifolia sporangium  Non- papillate and caducous sporangia of Phytophthora pinifolia isolated from the infected P. radiata needles. |
P. megakarya sporangium  Caducous papillate sporangium of P. megakarya |
|
P. kernoviae disease on European beech  Bleeding lesion on trunk of Fagus sylvatica |
P. nicotianae sporangia  Noncaducous sporangium showing ovoid shape and papillate condition. (Fitopatol. bras. 2005) |
P. pinifolia on Pinus radiata  Pinus radiata needles, note “black line” symptom near needle bases |