Warty protuberances on oogonium
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P. katsurae oogonium |
P. katsurae disease symptoms Infected chestnut (Castanea) with girdling canker |
P. katsurae growth morphology on β-CMA Growth morphology at 7 days on β-CMA |
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P. katsurae growth morphology on β-CMA Growth morphology at 7 days on β-CMA |
P. katsurae disease symptoms Infected chestnut (Castanea) with bleeding canker |
P. katsurae oogonium Micrograph of warty oogonium |
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P. katsurae disease symptoms Infected chestnut tree with girdling canker on stem |
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. katsurae oogonia Oogonia with ornamentation |
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P. katsurae sporangia Papillate, non-caducous sporangium with differentiated content; photo used with permission from Q-bank |
P. katsurae disease symptoms Infected chestnut tree with girdling canker on stem |
P. katsurae sporangia Papillate, non-caducous sporangia; photo used with permission from Q-bank |


