Phylum:Zygomycota >> Class: Zygomycetes >>  Order: Glomales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Sclerocystis sinuosa

= S. pakistanica Iqbal & Bushra, Trans. Mycol. Soc. Japan 21:59-60. 1980.

Sclerocystis sinuosa Gerdemann & Bakshi, Trans. Br. Mycol. Soc. 66:340-343. 1976.

 Description: Sporocarps reddish-brown to dull brown, globose to subglobose, 248-580 × 380-650 μm. Peridium tightly enclosing a sporocarp, composed of thick-walled interwoven hyphae. In the younger collections ( i.e., spores containing numerous oil droplets and spore wall usually evenly thickened), peridial hyphae sinuous. In the older collections ( i.e., spores with much less cellular contents, often infected by other fungi, perforated, and spore wall often thickened at apex or lateral side ), sinuous feature may appear indistinct. Chlamydospores (22.5-) 35-74 (-87.5) × (47.5-) 55-125 (-145) μm, globose, subglobose, obovoid, ellipsoidal, clavate, or irregular, wall single, with walls either evenly thickened or unevenly thickened, usually thickened at the apex or lateral side, (1.5-) 5-22.5 (-30) μm, with 1-2 attached hyphae. Chlamydospores often infected by other soil microorganisms and "Glomus-like" endospores also frequently formed inside.

1. Taiwan: Tainan, Anpin; from the rhizosphere of Miscanthus sp. in Casuarina equisetifolia L . woods, Wu-850725; 2. Taiwan: Tainan, Anpin; from the rhizosphere of ground covers in C. equisetifolia L. woods, Wu-850918; 3. Taiwan: Pintong, by Kau-ping River; from the rhizosphere of legume (Glycine sp.), Wu- 860814 a; 4.Taiwan: Pingtung, by Kau-ping River; from the rhizosphere of asparagus (A. officinalis), Wu-860813; 5.Taiwan: Pintong, Tongang; from the rhizosphere of unidentified herb grass, Wu-ME2; 6. Taiwan: Tainan, Charlu; from the rhizosphere of orange (Citrus sp.), Wu-860814 b; 7. Taiwan: Nantou, Chi-tou, from the rhizosphere of Sinocalamus sp., Wu-850814; 8. Taiwan: Taichung, Wu-feng, from the rhizosphre of maize (Zea mays L.), Wu-111401; 9. Taiwan: Orchid Island, Taitung, from the rhizosphere of C. equisetifolia, Wu-860707; 10. U.S.A., INVAM collection, Gainesville, Florida (SSNS 122).

 Habitat: Rhizosphere of Miscanthus sp. in Casuarina equisetifolia L . woods, ground covers in C. equisetifolia L. woods, legume (Glycine sp.), asparagus (A. officinalis), unidentified herb grass, orange (Citrus sp.), Sinocalamus sp., maize (Zea mays L.), C. equisetifolia.

Taiwan, U.S.A.




C. G. Wu

 Note: The indistinct sinuous feature of the peridium of mature sporocarps and the thickened peridium may lead to confusion in identifying this species. Sclerocystis pakistanica was described from such materials. Spores with unevenly thickened walls are frequently found in the sporocarps isolated from crop fields or beach sand dunes. The bore holes and internal projections of spore wall (Fig. 17) are probably caused by fungi and actinomycetes (Lee, 1991). Sporocarps usually arise from two to four monohyphal stalks (Wu, 1993). The heterogenous spores with uneven wall thickness and indistinct sinuous feature have been illustrated by Wu and Chen (1993).