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).
Photo Gallery
|
Comparative gametangial morphology of Phytophthora Clade 5 species  |
P. frigida sporangia  Noncaducous sporangia showing ovoid shape and papillate condition |
Black pod disease of cacao caused by P. palmivora  Black pod of cacao in Ecuador caused by P. palmivora (see lesioned fruit on left). |
|
P. nemorosa colony morphology on PDA  Colony morphology on PDA at 14 days |
P. cambivora sporangium with internal extended proliferation  Empty sporangia showing internal extended proliferation |
P. frigida chlamydospore  Globose chlamydospores of P. frigida |
|
P. pseudotsugae sporangium  Broadly ovoid, papillate sporangium in water |
P. alni in alder, Illwald, France  P. alni in alder, Illwald, France |
P. agathidicia growth on PDA  Colony morphology of ex-holotype ICMP 17027 after 10-days incubation at 20°C in the dark |
|
P. pinifolia coenocytic hyphae  Coenocytic hyphae (from Duran et al. 2008). Scale bar = 20 μm. |
P. palmivora sporangia, chlamydospores, hyphae  Sporangia (sporangiospores), chlamydospores, and hyphae stained with Cotton Blue |
P. pluvialis sporangium  Sporangia showing typical ovoid shape and semi-papillate condition |