Phylum：Zygomycota　>>　Class： Zygomycetes　>>　 Order： Mucorales 
   
 
　BCRC Number： NO BCRC Number!  
   
　Scientific Name： Rhizopus microsporus var. chinensis
 
   
   
　Author：

Rhizopus microsporus v. Tiegh. var. chinensis (Saito) Schipper & Stalper, Stud. Mycol. 25: 1-24. 1984.
   
 
 
 
 
　Description： Colonies on PDA grow very well, reaching 87mm in 3 days at 40°C, white at first, gray black, then turn mustard yellow; reverse naples yellow. Sporangiphores arising from the aerial or the submerged mycelia, slightly widening toward the apophysis, wall smooth infrequently incrusted, brown, mostly 1-3 together, rarely 4, with simple rhizoid (root shape or finger shape), rarely without rhizoid at the base, 50-305 × 3.4-14 μm at 45°C, 670 × 7-11.8 μm in 16-30°C. Sporangium smooth, globose, pale yellow brown turn black at maturity, 25-83 × 28-64 μm. Columella, wall smooth, globose, subglobose, conical and umbrella type, some have collars, pale gray, hyaline or plae brown, up to 64 μm. Sporangiospores, globose, subglobose or polygonal, 9.2 × 10.2 μm, have smooth surface by light microscopy, but have warty protrusions or striate by scanning electron microscopy, yellowish brown, turn to deep yellowish brown. Chlamydospores thick walled, globose, lemmon, cylindrical or irregular shape, pale green, 5-9 × 5-8 μm. No zygospores. Azygospores formed at 16-30°C, rarely at 40°C in old medium, globose, subglobose or rarely ovoid, pale green at young stage, turning brown, yellowish brown, dark yellowish brown at maturity, 21-89.6 × 15.4-84 μm; stalk swollen, smooth hyaline, 8.4-14 × 8.4-11.2 μm; pedicel yellowish brown, 5.6-14 × 3.4-14.4 μm, between stalk and azygospore, easily detached from stalk with azygospore when mature.
 
 
 
 
 
　Specimens：

null
 
 
 
　Habitat： Field soil in Tang-Sui (淡水) (TAIM-6T51).
 
 
 
　Distribution：

Australian, China, Italy, South Afracia, Taiwan
 
 
 
　References：

Chen, GY and Chen, ZC. 1988.
   
   
   
　Provided：

K. Y. Chen
 
 
　Note： Temperature relations: Temperature range for mycelial growth is very wide. 50-16°C show good growth, but at 50°C sporangia are rare. It was a thermotolerant fungi. It grows well at 50°C and produces azygospores at 16-30°C. At 40 and 30°C, mycelia contain abundant oil drops.