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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P. agathidicida lesion on kauri tree |
P. nemorosa colony morphology on PDA Colony morphology on PDA at 14 days |
P. agathidicia sporangia Differentiation of the cytoplasm within papillate sporangia into acid fuchsin stained zoospores |
P. arenaria oogonium Aplerotic oogonia of P. arenaria with paragynous antheridia. Scale bar = 20 μm |
P. pluvialis hyphal swellings P. pluvialis hyphal swellings in water |
P. agathadicida disease symptom Excavated lesion, with outer bark removed showing extent of disease-front |
P. palmivora sporangia
P. palmivora caducous papillate sporangia
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P. chlamydospora colony morphology on V8 agar P. chlamydospora colony morphology on V8 agar |
P. tentaculata chlamydospore Terminal chlamydospore of P. tentaculata |
P. megasperma sporangium Ovoid, non-papillate sporangia |
P. cryptogea colony morpholgy on V8 Colony morphology on V8 at 14 days |
P. cactorum oogonium Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |