Diffuse, non-patterned, colony morphology of ICMP 16471 (the original “Gadgil isolate”) after 10-days incubation at 20°C in the dark
Photo Gallery
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P. agathidicida growth on MEA  |
Boot wash to station to control spread of P. agathidicida  Use of hypochlorite solution applied through a “livestock drench-gun”, integrated with a soil grate to allow potentially contaminated soil to be collected |
P. agathidicida sporangium  Globose to ovoid-ellipsoid, papillate sporangium |
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P. agathidicia disease symptoms on kauri  Crown decline of mature kauri, with branchlets with little or no leaves |
P. agathidicida growth on CMA  Diffuse, non-patterned, colony morphology of ICMP 16471 (the original “Gadgil isolate”) after 10-days incubation at 20°C in the dark |
P. agathidicida lesion on kauri tree  Close up of gum oozing out of lower trunk lesions of a young kauri tree at Maungaroa Ridge, Piha region of Waitakere Regional Park |
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Tāne Mahuta “Lord of the Forest” kauri tree  Tāne Mahuta “Lord of the Forest” is a giant kauri tree (approximately 47 metres in height) in the Waipoua Forest of Northland Region, New Zealand. Its age is unknown but is estimated to be between 1,250 and 2,500 years |
P. agathidicia oogonia  Light micrograph of P. agathidicida oospore (Scale bar equals 15 µm) |
P. agathidicida lesion on kauri tree  Gum oozing out of longitudinal lesion |
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Mat to control spread of P. agathidicida  Jogger running over a plastic-reinforced, foam-mat containing a 2% solution of Trigene™ Advance (quaternary ammonium compound) as part of a cross-country event, in the Waitakere Regional Park |
P. agathidicia sporangia  Differentiation of the cytoplasm within papillate sporangia into acid fuchsin stained zoospores |
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). |