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Cyperus Smut

Scientific Name
Cintractia limitata
Scientific Author
G.P. Clinton
Taxonomy
Basidiomycota, Ustilaginomycetes, Ustilaginales, Cintractiaceae
Status
Native Australian Species
Reliability
High
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Diagnostic Images

Scanning Electron Micrograph
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Caption
Cintractia limitata on Cyperus rotundus - BRIP 27398. Scale bar = 1 µm.
Source
Desley Tree DEEDI
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Diagnostic Images (3)
Diagnostic Notes
Sori surrounding the base of floral peduncles, pedicels, axes of spikelets, individual flowers or groups of flowers, spherical, ovoid or fusiform, from 1 mm long in the flowers to 10–15 mm long on the floral peduncles, when young covered by a whitish brown fungal peridium that flakes away exposing the blackish brown agglutinated mass of spores with a powdery surface.

Spores globose, subglobose, ellipsoidal to slightly irregular, 9.5–14.0 × 9–12 µm, laterally flattened (7–9 µm wide), medium dark yellowish brown; wall ±uniformly thick, 0.7–1.0 µm, apparently smooth to very finely punctate, in SEM finely densely verruculose.

Spore germination (on water agar, after 1–2 days, at room temperature, from Kyllinga polymorpha, HUV 17120) resulting in 4-celled basidia 20–30 × 5–6 µm. Basidiospores and ramifying hyphae produced on the basidia and large dikaryotic conidia after conjugation of 2 basidial cells.
More Information
Specimen Contact
Roger Shivas
Author
Roger Shivas
Created
15/11/2010 02:05 AEST
Last Updated
16/11/2010 13:31 AEST
Citation
Roger Shivas (2010) Cyperus Smut (Cintractia limitata ) Updated on 11/16/2010 1:31:52 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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