1. PaDIL Species Factsheet Scientific Name: Sporisorium sorghi Ehrenb. ex Link Basidiomycota, Ustilaginomycetes, Ustilaginales, Ustilaginaceae Common Name Sorghum smut Live link: http://www.padil.gov.au/aus-smuts/Pest/Main/140156 Image Library Smut Fungi of Australia Live link: http://www.padil.gov.au/aus-smuts/ Partners for Smut Fungi of Australia image library Queensland Government https://www.daf.qld.gov.au/ 2. Species Information 2.1. Details Specimen Contact: Roger Shivas - [email protected] Author: Roger Shivas Citation: Roger Shivas (2010) Sorghum smut(Sporisorium sorghi)Updated on 12/9/2010 Available online: PaDIL - http://www.padil.gov.au Image Use: Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY- NC 4.0) 2.2. URL Live link: http://www.padil.gov.au/aus-smuts/Pest/Main/140156 2.3. Facets Columella: present Distribution: NSW, QLD, SA, VIC, WA Host Family: Poaceae Peridium: present Sorus position: inflorescence Sorus shape: globose to short cylindrical Spore balls: absent Spore mass texture: powdery Spore shape: globose or subglobose, irregular, ovoid to ellipsoidal Spore surface ornamentation: punctate, smooth, verruculose Status: Exotic establishment in Australia Sterile cells: present 2.4. Other Names Cintractia sorghi (Ehrenb. ex Link) Hirschh. Cintractia sorghi-vulgaris (Tul. & C. Tul.) G.P. Clinton Sphacelotheca sorghi (Ehrenb. ex Link) G.P. Clinton Sphacelotheca sorghicola (Speg.) Zundel Tilletia sorghi-vulgaris Tul. & C. Tul. Ustilago sorghicola Speg. Ustilago tulasnei J.G. Kühn 2.5. Diagnostic Notes **Sori** in spikelets, light brown, ovoid or cylindrical, 3–10 mm long, protruding from the glumes, covered by a well-developed peridium of interwoven hyphae overlain by host tissue, which ruptures irregularly to expose the dark brown powdery spore mass and the central columella composed of host tissues permeated by hyphae; panicles congested and stunted or not. **Spores** globose, subglobose, ovoid to slightly irregular, 5.5–8.0 (–8.5) × 5.5–7.0 µm, light olivaceous brown, from apparently smooth to sparsely punctate or very finely verruculose. **Sterile cells** somewhat larger than the spores, in irregular groups or chains, hyaline, smooth. **Spore germination** resulting in 4-celled basidia (the basal cell usually remains in the spore) producing lateral and apical basidiospores in nutrient media, or infection hyphae in water. 3. Diagnostic Images Sporisorium sorghi on Sorghum bicolor - Sporisorium sorghi on Sorghum bicolor - BRIP 3397. Scale bar = 1 cm. BRIP 7797. Scale bar = 10 µm Host symptoms: Roger Shivas DEEDI Light micrograph: Roger Shivas DEEDI Results Generated: Tuesday, September 28, 2021 .