Phylum:Chytridiomycota >> Class: Chytridiomycetes >>  Order: Chytridiales 
   
 
 BCRC Number NO BCRC Number!  
   
 Scientific Name: Rhizophydium haynaldii
 
   
   
 Author:

Rhizophydium haynaldii (Schaarschmidt) Fischer, Rabenhorst. Kryptogamen-Fl. 1:92. 1892.

   
 
 
 
 
 Description: On pine pollen: Sporangium epibiotic, spherical, 15-40 μm in diameter, or irregularly shaped, with 5-8 papillae or discharge tubes, tubular diameter about 2.5 μm, up to 10μm long; the wall of tubes remained intact after discharge. Zoospores 2.5-3.7 μm in diameter, individually released over 2 to 5 min period and becoming motile about 30s after release, movement hopping. Resting spore spherical, 6-15 μm diameter, thick-walled. On 1/4YpSs agar: Small sporangia varied in shape whereas large sporangia from spherical to subspherical, papillae protruding. Rhizoids fine, arising from one to three axes on sporangium base or from knob-like extension of sporangium base. Color of colony buff to off-white.
 
 
 
 
 
 Specimens:

Taiwan. Nantou: Puli, waterfall, 20 Jul. 1992, NTNU 201a. Isolated on pine pollen from water sample,

 
 
 
 Habitat: Fresh water.
 
 
 
 Distribution:

Hungary, Arctic Region, Taiwan.

 
 
 
 References:

Barr, DJS. 1973; Chen, SF and Chien, CY. 1995.

   
   
   
 Provided:

S. F. Chen

 
 
 Note: Papillae protruding is the main character. Sporangial base with axes or knob-like extension. The characters are similar to Barr's (1973) description.