Phylum:Anamorphic fungi >> Class: Anamorphic fungi >>  Order: Anamorphic fungi 
   
 
 BCRC Number 32146     32313      
   
 Scientific Name: Aspergillus japonicus var. aculeatus
 
   
   
 Author:

Aspergillus japonicus Saito var. aculeatus (Iizuka) A1-Musallam, Revision of the black Aspergillus species. Ph.D. Thesis, University of Utrecht. 1980.

   
 
 
 
 
 Description: Colony diameters on Czapek’s Agar 7.0-7.5 cm in 10 days at 25°C; conidial heads radiate to globose, or splitting into a few columns, dark purple-drab to blackish brown (R., Plate XLV); reverse yellowish green to black. Sclerotia white to pale yellow; stipes uncolored or brown toward the vesicles, 130-2660 × 4.4-20.0 μm; vesicles globose to subglobose, brown, 15.0-68.0 μm in diameter. Aspergilla uniseriate, phialides 5.6-11.2 × 2.8-4.8 μm, covering the upper 3/4 of the vesicle. Conidia ellipsoidal to subglobose or globose, 3.2-5.6 × 3.2-4.8 μm, conspicuously echinulate, spines up to 1.2 μm long. Colony diameters on malt Extract Agar 4.5-5.5 cm in 10 days at 25°C; mycelium white; co-nidial heads radiate to loosely columnar, blackish brown (R., Plate XLV); reverse uncolored.
 
 
 
 
 
 Specimens:

Taiwan, Chiayi Pref., most common species from stored rice seeds, 7 Feb 1987 (CCRC 32313); rotten leaf, Taipei City, 3 Mar 1987; soil, Pingtung Pref., 5 Mar 1988 (CCRC 32146).

 
 
 
 Habitat: from stored rice seeds; rotten leaf; soil.
 
 
 
 Distribution:

Taiwan, Netherlands, Panama.

 
 
 
 References:

Tzean, SS et al. 1990.

   
   
   
 Provided:

S. S. Tzean and J. L. Chen

 
 
 Note: A. japonicus var. aculeatus and A. japonicus var. japonicus share common characteristics in having absolute uniseriate aspergilla, conspicuously echinulate, spine conidia. These traits differ from any other black spored Aspergillus species. A. japonicus var. aculeatus in having larger vesicles (15-68 μm in diameter) in contrast to small vesicles of A. japonicus var. japonicus (8-38 μm in diameter).