 Phylum：Oomycota >> Class： Oomycetes >> Order： Saprolegniales |
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 BCRC Number： |
NO BCRC Number! | |||
| Scientific Name： |
Olpidiopsis saprolegniae | |||
| Author： |
Olpidiopsis saprolegniae var. saprolegniae (Braun) Cornu. Ann. Sci. Nat. Bot., v. 15:145, pl. 3, fig. 10. 1872. |
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| Description： |
Parasitic in hyphae of Saprolegnia ferax. Sporangium predominantly spherical subspherical ovoid, or ellipsoidal; very variable in size 20-110 μ in diameter; generally terminal, occasionally intercalary in the hypertrophied host filaments; wall thin, smooth, brownish; discharge tube, one or two narrowly cylindrical of variable length. Zoospore not observed. Resting spore spherical; 20-25 μ in diameter, dark brown color with a thick wall, the outer surface densely covered with slender sharp spines 5-7.5 μ in length. Germination not observed. Companion cell from one to two, ovoid or nearly spherical 10-22.5 μ in diameter, wall thin, smooth, colorless. (Oct. 3, 1974. Taipei; river) | |||
| Specimens： |
null |
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| Habitat： |
Soil and water | |||
| Distribution： |
Ithaca, NY, Taiwan. |
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| References： |
McLarty DA. 1941; Whiffen AJ. 1942. |
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| Provided： |
T. S. Chiou and H. S. Chang |
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| Note： |
Sawada (1912) collected this species but he didn’t observe the sexual stage. In our isolates there are some points which is different from Cornu’s isolate, that the resting spore is smaller and color deeper, sharp spines of resting spore are shorter, and companion cell is smaller. | |||