Your are here:

Cynodon smut

Scientific Name
Ustilago cynodontis
Scientific Author
(Henn.) Henn.
Taxonomy
Basidiomycota, Ustilaginomycetes, Ustilaginales, Ustilaginaceae
Status
Exotic establishment in Australia
Reliability
High
Download
PDF

Page menu options:

Diagnostic Images

Close
Caption
Source
Image Options
Close
Diagnostic Images (4)
Diagnostic Notes
Sori in the inflorescence, destroying the spikelets and covering the spikes with a dark brown dusty spore mass; sometimes infection is localised in the basal parts of the inflorescence, usually with abortive spikelets in its distal parts; immature sori often ±hidden by enveloping leaf sheaths. Infection systemic.

Spores globose to subglobose, 6.0–8.0 (–8.5) × 5.5–8.0 µm, yellowish brown to light olivaceous brown, smooth; in SEM with dense low warts. Immature spores often in readily separable chains, connected by minute hyaline hyphal remnants.

Spore germination 4-celled basidia (in 3 + 1 arrangement) producing successive lateral and terminal ovoid to long-ellipsoidal basidiospores. Basidiospores budding or germinating by hyphae on which lateral or terminal aerial sporidial systems develop.
More Information
Specimen Contact
Roger Shivas
Author
Roger Shivas
Created
16/12/2010 12:29 AEST
Last Updated
16/12/2010 12:29 AEST
Citation
Roger Shivas (2010) Cynodon smut (Ustilago cynodontis) Updated on 12/16/2010 12:29:44 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

Loading