Ovoid, semipapillate sporangia showing medium length pedicel
Photo Gallery
|
P. pseudosyringae sporangium  |
P. palmivora sporangia  Sporangia (sporangiospores) showing sympodial branching |
P. megasperma colony morphology on V8  Colony morphology on V8 at 7 days |
|
P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. cambivora older hyphae  Old septate hyphae |
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. pluvialis - appearance of new growth  Tufted appearance of new growth from surviving buds on Douglas-fir, one year after defoliation. |
P. pinifolia sporangium  Cysts remain in sporangium after discharge, photo from Q-bank, used with permission |
P. katsurae oogonium  Warty protuberances on oogonium |
|
P. pinifolia hyphal growth  P. pinifolia pathogen growing from infected needle on selective agar |
P. katsurae disease symptoms  Infected chestnut (Castanea) with girdling canker |
P. megasperma colony morphology on PDA  Colony morphology on PDA at 7 days |