Oogonium and oospore with amphigynous antheridium
Photo Gallery
P. pluvialis oogonium and antheridium |
P. frigida sporangia Noncaducous sporangia showing ovoid shape and papillate condition |
P. pluvialis sporangia. P. pluvialis sporangia on tape peel from infected Douglas-fir needle. |
P. austrocedrae colony morphology on Tomato juice agar with B sitosterol Colony morphology of P. austrocedrae at 16 ºC after 4 weeks on Tomato juice agar with B sitosterol |
P. nicotianae colony morphology on V8 Phytophthora nicotianae CBS 321.49 V8 after 7 days at 24 degrees. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. cambivora disease symptoms Crown symptoms of Ink disease on sweet chestnut |
P. tentaculata oogonia and antheridia Oospores and oogonia with mostly paragynous but some amphigynous antheridia of P. tentaculata |
P. tentaculata disease symptoms on sticky monkey flower Outplanted sticky monkey flower (Diplacus aurantiacus) infected with P. |
P. ramorum oogonium Oogonium with thick oogonial wall, photo from Q-bank, used with permission |
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. cryptogea hyphal swellings Cluster of small, angular to globose hyphal swellings formed in water |
P. palmivora oogonia P. palmivora oogonia with antheridia |