Nursery grown California mugwort plant (Artemisia douglasiana) infected with P. tentaculata and exhibiting severe root and crown rot
Photo Gallery
|
P. tentaculata disease symptoms on California mugwort  |
P. pluvialis sporangia.  P. pluvialis sporangia on tape peel from infected Douglas-fir needle. |
P. cambivora coralloid hyphae  Coralloid hyphae with hyphal swelling-like structures |
|
P. cambivora colony morphology on PDA  Uniform fluffy colony morphology at 14 days at 20°C on PDA |
P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. megakarya disease symptoms on Theobroma cacao
Symptoms of black pod disease of cocoa (T. cacao)
|
|
P. pluvialis colony morphology on carrot agar  Colony morphology on carrot agar at 20 days |
P. lateralis on Port Orford cedar  Atypical decline caused by aerial infections in Scaër, France |
P. chlamydospora hyphal swellings  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.
|
|
Phytophthora chlamydospora sporangium  Phytophthora chlamydospora sporangia in water, showing internal proliferation. Bar is 20 µm. |
P. nemorosa colony morphology on PDA  Colony morphology on PDA at 14 days |
P. cambivora sporangium with internal extended proliferation  Empty sporagia showing internal nested and extended proliferation |