 Phylum：Oomycota >> Class： Oomycetes >> Order： Pythiales |
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 BCRC Number： |
NO BCRC Number! | |||
| Scientific Name： |
Pythium deliense | |||
| Author： |
Pythium deliense Meurs, Phytopath. Z. 7: 179. 1934. |
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| Description： |
Colonies on cornmeal agar forming little loose aerial mycelium. Main hyphae up to 8 μm wide. Sporangia mostly terminal, occasionally intercalary, consisting of extended, inflated filamentous structures, often with swollen side branches. Zoospores formed at 25-30℃. Encysted zoospores 8-12 μm diam. Oogonia mostly terminal, globose, smooth, 20-24 μm diam. Oogonial stalks bending towards the antheridium. Antheridia single, with a straight stalk, terminal and intercalary, monoclinous or diclinous. Oospores aplerotic, about 18 μm diam, wall about 2 μm thick. | |||
| Specimens： |
Taiwan, Nantou: ginger, 28 May 1997, Pd-1. Taiwan, Jhongli: Lettuce, 12 Oct 1997, Pd-3-r2. |
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| Habitat： |
soil, water, plant | |||
| Distribution： |
worldwide |
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| References： |
Plaats-Niterink, AJ van der. 1981. |
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| Provided： |
P. H. Wang |
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| Note： |
P. deliense is close to P. aphanidermatum. It differs from P. aphanidermatum in having oogonial stalks bending towards the antheridium. The sporangia of P. deliense are less complicated than those of P. aphanidermatum. P. deliense is restricted to warmer regions, it can cause fruit rot, root-rot and damping-off of many plants. | |||